1 | // chcdemo.cpp : Defines the entry point for the console application.
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2 | //
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3 |
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4 |
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5 | #include "common.h"
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6 |
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7 | #ifdef _CRT_SET
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8 | #define _CRTDBG_MAP_ALLOC
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9 | #include <stdlib.h>
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10 | #include <crtdbg.h>
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11 |
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12 | // redefine new operator
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13 | #define DEBUG_NEW new(_NORMAL_BLOCK, __FILE__, __LINE__)
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14 | #define new DEBUG_NEW
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15 | #endif
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16 |
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17 | #include <math.h>
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18 | #include <time.h>
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19 | #include "glInterface.h"
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20 |
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21 |
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22 | #include "RenderTraverser.h"
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23 | #include "SceneEntity.h"
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24 | #include "Vector3.h"
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25 | #include "Matrix4x4.h"
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26 | #include "ResourceManager.h"
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27 | #include "Bvh.h"
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28 | #include "Camera.h"
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29 | #include "Geometry.h"
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30 | #include "BvhLoader.h"
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31 | #include "FrustumCullingTraverser.h"
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32 | #include "StopAndWaitTraverser.h"
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33 | #include "CHCTraverser.h"
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34 | #include "CHCPlusPlusTraverser.h"
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35 | #include "Visualization.h"
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36 | #include "RenderState.h"
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37 | #include "Timer/PerfTimer.h"
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38 | #include "SceneQuery.h"
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39 | #include "RenderQueue.h"
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40 | #include "Material.h"
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41 | #include "glfont2.h"
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42 | #include "PerformanceGraph.h"
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43 | #include "Environment.h"
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44 | #include "Halton.h"
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45 | #include "Transform3.h"
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46 | #include "SampleGenerator.h"
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47 | #include "FrameBufferObject.h"
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48 | #include "DeferredRenderer.h"
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49 | #include "ShadowMapping.h"
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50 | #include "Light.h"
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51 | #include "SceneEntityConverter.h"
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52 | #include "SkyPreetham.h"
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53 | #include "Texture.h"
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54 | #include "ShaderManager.h"
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55 | #include "MotionPath.h"
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56 | #include "ShaderProgram.h"
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57 | #include "Shape.h"
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58 | #include "WalkThroughRecorder.h"
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59 |
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60 |
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61 | using namespace std;
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62 | using namespace CHCDemoEngine;
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63 |
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64 |
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65 | /// the environment for the program parameter
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66 | static Environment env;
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67 |
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68 |
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69 | GLuint fontTex;
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70 | /// the fbo used for MRT
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71 | FrameBufferObject *fbo = NULL;
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72 | /// the renderable scene geometry
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73 | SceneEntityContainer sceneEntities;
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74 | /// the dynamic objects in the scene
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75 | SceneEntityContainer dynamicObjects;
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76 | // traverses and renders the hierarchy
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77 | RenderTraverser *traverser = NULL;
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78 | /// the hierarchy
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79 | Bvh *bvh = NULL;
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80 | /// handles scene loading
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81 | ResourceManager *resourceManager = NULL;
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82 | /// handles scene loading
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83 | ShaderManager *shaderManager = NULL;
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84 | /// the scene camera
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85 | PerspectiveCamera *camera = NULL;
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86 | /// the scene camera
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87 | PerspectiveCamera *visCamera = NULL;
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88 | /// the visualization
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89 | Visualization *visualization = NULL;
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90 | /// the current render renderState
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91 | RenderState renderState;
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92 | /// the rendering algorithm
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93 | int renderMode = RenderTraverser::CHCPLUSPLUS;
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94 | /// eye near plane distance
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95 | const float nearDist = 0.2f;
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96 | //const float nearDist = 1.0f;
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97 | /// eye far plane distance
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98 | float farDist = 1e6f;
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99 | /// the field of view
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100 | const float fov = 50.0f;
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101 |
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102 | SceneQuery *sceneQuery = NULL;
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103 | RenderQueue *renderQueue = NULL;
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104 | /// traverses and renders the hierarchy
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105 | RenderTraverser *shadowTraverser = NULL;
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106 | /// the skylight + skydome model
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107 | SkyPreetham *preetham = NULL;
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108 |
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109 | MotionPath *motionPath = NULL;
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110 | /// max depth where candidates for tighter bounds are searched
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111 | int maxDepthForTestingChildren = 3;
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112 |
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113 | bool ssaoUseFullResolution = false;
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114 |
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115 | /// store the frames as tga
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116 | bool recordFrames = false;
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117 | /// record the taken path
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118 | bool recordPath = false;
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119 | /// replays the recorded path
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120 | bool replayPath = false;
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121 |
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122 | int currentReplayFrame = -1;
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123 |
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124 | string recordedFramesSuffix("frames");
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125 |
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126 | /// the walkThroughRecorder
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127 | WalkThroughRecorder *walkThroughRecorder = NULL;
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128 | WalkThroughPlayer *walkThroughPlayer = NULL;
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129 |
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130 |
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131 | /// the technique used for rendering
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132 | enum RenderTechnique
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133 | {
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134 | FORWARD,
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135 | DEFERRED,
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136 | DEPTH_PASS
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137 | };
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138 |
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139 |
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140 | /// the used render type for this render pass
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141 | enum RenderMethod
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142 | {
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143 | RENDER_FORWARD,
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144 | RENDER_DEPTH_PASS,
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145 | RENDER_DEFERRED,
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146 | RENDER_DEPTH_PASS_DEFERRED,
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147 | RENDER_NUM_RENDER_TYPES
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148 | };
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149 |
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150 | /// one of four possible render methods
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151 | int renderMethod = RENDER_FORWARD;
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152 |
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153 | static int winWidth = 1024;
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154 | static int winHeight = 768;
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155 | static float winAspectRatio = 1.0f;
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156 |
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157 | /// these values get scaled with the frame rate
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158 | static float keyForwardMotion = 30.0f;
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159 | static float keyRotation = 1.5f;
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160 |
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161 | /// elapsed time in milliseconds
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162 | double elapsedTime = 1000.0;
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163 | double algTime = 1000.0;
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164 | double accumulatedTime = 1000.0;
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165 | float fps = 1e3f;
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166 | float turbitity = 5.0f;
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167 |
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168 | // ssao parameters
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169 | float ssaoKernelRadius = 1e-8f;
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170 | float ssaoSampleIntensity = 0.2f;
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171 | float ssaoFilterRadius = 12.0f;
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172 | float ssaoTempCohFactor = 255.0;
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173 | bool sortSamples = true;
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174 |
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175 | int shadowSize = 2048;
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176 |
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177 | /// the hud font
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178 | glfont::GLFont myfont;
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179 |
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180 | // rendertexture
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181 | int texWidth = 1024;
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182 | int texHeight = 768;
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183 |
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184 | int renderedObjects = 0;
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185 | int renderedNodes = 0;
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186 | int renderedTriangles = 0;
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187 |
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188 | int issuedQueries = 0;
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189 | int traversedNodes = 0;
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190 | int frustumCulledNodes = 0;
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191 | int queryCulledNodes = 0;
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192 | int stateChanges = 0;
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193 | int numBatches = 0;
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194 |
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195 | // mouse navigation renderState
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196 | int xEyeBegin = 0;
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197 | int yEyeBegin = 0;
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198 | int yMotionBegin = 0;
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199 | int verticalMotionBegin = 0;
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200 | int horizontalMotionBegin = 0;
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201 |
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202 | bool leftKeyPressed = false;
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203 | bool rightKeyPressed = false;
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204 | bool upKeyPressed = false;
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205 | bool downKeyPressed = false;
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206 | bool descendKeyPressed = false;
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207 | bool ascendKeyPressed = false;
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208 | bool leftStrafeKeyPressed = false;
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209 | bool rightStrafeKeyPressed = false;
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210 |
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211 | bool altKeyPressed = false;
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212 |
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213 | bool showHelp = false;
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214 | bool showStatistics = false;
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215 | bool showOptions = true;
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216 | bool showBoundingVolumes = false;
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217 | bool visMode = false;
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218 |
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219 | bool useOptimization = false;
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220 | bool useTightBounds = true;
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221 | bool useRenderQueue = true;
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222 | bool useMultiQueries = true;
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223 | bool flyMode = true;
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224 |
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225 | bool useGlobIllum = false;
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226 | bool useTemporalCoherence = true;
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227 | bool showAlgorithmTime = false;
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228 |
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229 | bool useFullScreen = false;
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230 | bool useLODs = true;
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231 | bool moveLight = false;
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232 |
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233 | bool useAdvancedShading = false;
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234 | bool showShadowMap = false;
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235 | bool renderLightView = false;
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236 | bool useHDR = true;
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237 | bool useAntiAliasing = true;
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238 | bool useLenseFlare = true;
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239 |
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240 | PerfTimer frameTimer, algTimer;
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241 | /// the performance graph window
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242 | PerformanceGraph *perfGraph = NULL;
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243 |
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244 | int sCurrentMrtSet = 0;
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245 |
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246 | static Matrix4x4 invTrafo = IdentityMatrix();
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247 |
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248 |
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249 | //////////////
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250 | //-- algorithm parameters
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251 |
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252 | /// the pixel threshold where a node is still considered invisible
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253 | /// (should be zero for conservative visibility)
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254 | int threshold;
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255 | int assumedVisibleFrames = 10;
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256 | int maxBatchSize = 50;
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257 | int trianglesPerVirtualLeaf = INITIAL_TRIANGLES_PER_VIRTUAL_LEAVES;
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258 |
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259 | //////////////
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260 |
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261 | enum {CAMERA_PASS = 0, LIGHT_PASS = 1};
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262 |
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263 |
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264 | //DeferredRenderer::SAMPLING_METHOD samplingMethod = DeferredRenderer::SAMPLING_POISSON;
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265 | DeferredRenderer::SAMPLING_METHOD samplingMethod = DeferredRenderer::SAMPLING_QUADRATIC;
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266 |
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267 | ShadowMap *shadowMap = NULL;
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268 | DirectionalLight *light = NULL;
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269 | DeferredRenderer *deferredShader = NULL;
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270 |
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271 |
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272 | SceneEntity *buddha = NULL;
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273 | SceneEntity *skyDome = NULL;
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274 | SceneEntity *sunBox = NULL;
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275 |
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276 | GLuint sunQuery = 0;
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277 |
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278 |
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279 | ////////////////////
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280 | //--- function forward declarations
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281 |
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282 | void InitExtensions();
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283 | void InitGLstate();
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284 |
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285 | void DisplayVisualization();
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286 | /// destroys all allocated resources
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287 | void CleanUp();
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288 | void SetupEyeView();
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289 | void SetupLighting();
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290 | void DisplayStats();
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291 | /// draw the help screen
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292 | void DrawHelpMessage();
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293 | /// render the sky dome
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294 | void RenderSky();
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295 | /// render the objects found visible in the depth pass
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296 | void RenderVisibleObjects();
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297 |
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298 | int TestSunVisible();
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299 |
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300 | void Begin2D();
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301 | void End2D();
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302 | /// the main loop
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303 | void MainLoop();
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304 |
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305 | void KeyBoard(unsigned char c, int x, int y);
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306 | void Special(int c, int x, int y);
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307 | void KeyUp(unsigned char c, int x, int y);
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308 | void SpecialKeyUp(int c, int x, int y);
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309 | void Reshape(int w, int h);
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310 | void Mouse(int button, int renderState, int x, int y);
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311 | void LeftMotion(int x, int y);
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312 | void RightMotion(int x, int y);
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313 | void MiddleMotion(int x, int y);
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314 | void KeyHorizontalMotion(float shift);
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315 | void KeyVerticalMotion(float shift);
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316 | /// returns the string representation of a number with the decimal points
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317 | void CalcDecimalPoint(string &str, int d);
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318 | /// Creates the traversal method (vfc, stopandwait, chc, chc++)
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319 | RenderTraverser *CreateTraverser(PerspectiveCamera *cam);
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320 | /// place the viewer on the floor plane
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321 | void PlaceViewer(const Vector3 &oldPos);
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322 | // initialise the frame buffer objects
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323 | void InitFBO();
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324 | /// changes the sunlight direction
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325 | void RightMotionLight(int x, int y);
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326 | /// render the shader map
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327 | void RenderShadowMap(float newfar);
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328 | /// function that touches each material once in order to accelarate render queue
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329 | void PrepareRenderQueue();
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330 | /// loads the specified model
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331 | void LoadModel(const string &model, SceneEntityContainer &entities);
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332 |
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333 | inline float KeyRotationAngle() { return keyRotation * elapsedTime * 1e-3f; }
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334 | inline float KeyShift() { return keyForwardMotion * elapsedTime * 1e-3f; }
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335 |
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336 | void CreateAnimation();
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337 |
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338 | SceneQuery *GetOrCreateSceneQuery();
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339 |
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340 |
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341 | // new view projection matrix of the camera
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342 | static Matrix4x4 viewProjMat = IdentityMatrix();
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343 | // the old view projection matrix of the camera
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344 | static Matrix4x4 oldViewProjMat = IdentityMatrix();
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345 |
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346 |
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347 |
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348 | static void PrintGLerror(char *msg)
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349 | {
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350 | GLenum errCode;
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351 | const GLubyte *errStr;
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352 |
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353 | if ((errCode = glGetError()) != GL_NO_ERROR)
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354 | {
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355 | errStr = gluErrorString(errCode);
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356 | fprintf(stderr,"OpenGL ERROR: %s: %s\n", errStr, msg);
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357 | }
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358 | }
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359 |
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360 |
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361 | int main(int argc, char* argv[])
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362 | {
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363 | #ifdef _CRT_SET
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364 | //Now just call this function at the start of your program and if you're
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365 | //compiling in debug mode (F5), any leaks will be displayed in the Output
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366 | //window when the program shuts down. If you're not in debug mode this will
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367 | //be ignored. Use it as you will!
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368 | //note: from GDNet Direct [3.8.04 - 3.14.04] void detectMemoryLeaks() {
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369 |
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370 | _CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF|_CRTDBG_ALLOC_MEM_DF);
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371 | _CrtSetReportMode(_CRT_ASSERT,_CRTDBG_MODE_FILE);
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372 | _CrtSetReportFile(_CRT_ASSERT,_CRTDBG_FILE_STDERR);
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373 | #endif
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374 |
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375 | cout << "=== reading environment file ===" << endl << endl;
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376 |
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377 | int returnCode = 0;
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378 |
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379 | Vector3 camPos(.0f, .0f, .0f);
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380 | Vector3 camDir(.0f, 1.0f, .0f);
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381 | Vector3 lightDir(-0.8f, 1.0f, -0.7f);
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382 |
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383 | cout << "=== reading environment file ===" << endl << endl;
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384 |
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385 | const string envFileName = "default.env";
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386 | if (!env.Read(envFileName))
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387 | {
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388 | cerr << "loading environment " << envFileName << " failed!" << endl;
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389 | }
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390 | else
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391 | {
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392 | env.GetIntParam(string("assumedVisibleFrames"), assumedVisibleFrames);
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393 | env.GetIntParam(string("maxBatchSize"), maxBatchSize);
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394 | env.GetIntParam(string("trianglesPerVirtualLeaf"), trianglesPerVirtualLeaf);
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395 | env.GetIntParam(string("winWidth"), winWidth);
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396 | env.GetIntParam(string("winHeight"), winHeight);
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397 | env.GetIntParam(string("shadowSize"), shadowSize);
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398 | env.GetIntParam(string("maxDepthForTestingChildren"), maxDepthForTestingChildren);
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399 |
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400 | env.GetFloatParam(string("keyForwardMotion"), keyForwardMotion);
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401 | env.GetFloatParam(string("keyRotation"), keyRotation);
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402 | env.GetFloatParam(string("tempCohFactor"), ssaoTempCohFactor);
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403 | env.GetFloatParam(string("turbitity"), turbitity);
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404 |
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405 | env.GetVectorParam(string("camPosition"), camPos);
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406 | env.GetVectorParam(string("camDirection"), camDir);
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407 | env.GetVectorParam(string("lightDirection"), lightDir);
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408 |
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409 | env.GetBoolParam(string("useFullScreen"), useFullScreen);
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410 | env.GetBoolParam(string("useLODs"), useLODs);
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411 | env.GetBoolParam(string("useHDR"), useHDR);
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412 | env.GetBoolParam(string("useAA"), useAntiAliasing);
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413 | env.GetBoolParam(string("useLenseFlare"), useLenseFlare);
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414 | env.GetBoolParam(string("useAdvancedShading"), useAdvancedShading);
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415 |
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416 | env.GetIntParam(string("renderMethod"), renderMethod);
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417 |
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418 | env.GetFloatParam(string("ssaoKernelRadius"), ssaoKernelRadius);
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419 | env.GetFloatParam(string("ssaoSampleIntensity"), ssaoSampleIntensity);
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420 | env.GetBoolParam(string("ssaoUseFullResolution"), ssaoUseFullResolution);
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421 |
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422 | env.GetStringParam(string("recordedFramesSuffix"), recordedFramesSuffix);
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423 |
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424 | //env.GetStringParam(string("modelPath"), model_path);
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425 | //env.GetIntParam(string("numSssaoSamples"), numSsaoSamples);
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426 |
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427 | texWidth = winWidth;
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428 | texHeight = winHeight;
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429 |
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430 | cout << "assumedVisibleFrames: " << assumedVisibleFrames << endl;
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431 | cout << "maxBatchSize: " << maxBatchSize << endl;
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432 | cout << "trianglesPerVirtualLeaf: " << trianglesPerVirtualLeaf << endl;
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433 |
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434 | cout << "keyForwardMotion: " << keyForwardMotion << endl;
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435 | cout << "keyRotation: " << keyRotation << endl;
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436 | cout << "winWidth: " << winWidth << endl;
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437 | cout << "winHeight: " << winHeight << endl;
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438 | cout << "useFullScreen: " << useFullScreen << endl;
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439 | cout << "useLODs: " << useLODs << endl;
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440 | cout << "camPosition: " << camPos << endl;
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441 | cout << "shadow size: " << shadowSize << endl;
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442 | cout << "render method: " << renderMethod << endl;
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443 | cout << "use antialiasing: " << useAntiAliasing << endl;
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444 | cout << "use lense flare: " << useLenseFlare << endl;
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445 | cout << "use advanced shading: " << useAdvancedShading << endl;
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446 | cout << "turbitity: " << turbitity << endl;
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447 | cout << "temporal coherence: " << ssaoTempCohFactor << endl;
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448 | cout << "sample intensity: " << ssaoSampleIntensity << endl;
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449 | cout << "kernel radius: " << ssaoKernelRadius << endl;
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450 | cout << "ssao full resolution: " << ssaoUseFullResolution << endl;
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451 | cout << "recorded frames suffix: " << recordedFramesSuffix << endl;
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452 |
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453 | //cout << "model path: " << model_path << endl;
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454 | cout << "**** end parameters ****" << endl << endl;
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455 | }
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456 |
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457 | ///////////////////////////
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458 |
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459 | camera = new PerspectiveCamera(winWidth / winHeight, fov);
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460 | camera->SetNear(nearDist);
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461 | camera->SetFar(1000);
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462 |
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463 | camera->SetDirection(camDir);
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464 | camera->SetPosition(camPos);
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465 |
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466 | visCamera = new PerspectiveCamera(winWidth / winHeight, fov);
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467 | visCamera->SetNear(0.0f);
|
---|
468 | visCamera->Yaw(.5 * M_PI);
|
---|
469 |
|
---|
470 | // create a new light
|
---|
471 | light = new DirectionalLight(lightDir, RgbaColor(1, 1, 1, 1), RgbaColor(1, 1, 1, 1));
|
---|
472 | // the render queue for material sorting
|
---|
473 | renderQueue = new RenderQueue(&renderState);
|
---|
474 |
|
---|
475 | glutInitWindowSize(winWidth, winHeight);
|
---|
476 | glutInit(&argc, argv);
|
---|
477 | glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_MULTISAMPLE);
|
---|
478 | //glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
|
---|
479 | //glutInitDisplayString("samples=2");
|
---|
480 |
|
---|
481 | SceneEntity::SetUseLODs(useLODs);
|
---|
482 |
|
---|
483 | if (!useFullScreen)
|
---|
484 | {
|
---|
485 | glutCreateWindow("FriendlyCulling");
|
---|
486 | }
|
---|
487 | else
|
---|
488 | {
|
---|
489 | glutGameModeString( "1024x768:32@75" );
|
---|
490 | glutEnterGameMode();
|
---|
491 | }
|
---|
492 |
|
---|
493 | glutDisplayFunc(MainLoop);
|
---|
494 | glutKeyboardFunc(KeyBoard);
|
---|
495 | glutSpecialFunc(Special);
|
---|
496 | glutReshapeFunc(Reshape);
|
---|
497 | glutMouseFunc(Mouse);
|
---|
498 | glutIdleFunc(MainLoop);
|
---|
499 | glutKeyboardUpFunc(KeyUp);
|
---|
500 | glutSpecialUpFunc(SpecialKeyUp);
|
---|
501 | glutIgnoreKeyRepeat(true);
|
---|
502 |
|
---|
503 | // initialise gl graphics
|
---|
504 | InitExtensions();
|
---|
505 | InitGLstate();
|
---|
506 |
|
---|
507 | glEnable(GL_MULTISAMPLE_ARB);
|
---|
508 | glHint(GL_MULTISAMPLE_FILTER_HINT_NV, GL_NICEST);
|
---|
509 |
|
---|
510 | LeftMotion(0, 0);
|
---|
511 | MiddleMotion(0, 0);
|
---|
512 |
|
---|
513 | perfGraph = new PerformanceGraph(1000);
|
---|
514 |
|
---|
515 | resourceManager = ResourceManager::GetSingleton();
|
---|
516 | shaderManager = ShaderManager::GetSingleton();
|
---|
517 |
|
---|
518 |
|
---|
519 | ///////////
|
---|
520 | //-- load the static scene geometry
|
---|
521 |
|
---|
522 | LoadModel("city.dem", sceneEntities);
|
---|
523 |
|
---|
524 |
|
---|
525 | //////////
|
---|
526 | //-- load some dynamic stuff
|
---|
527 |
|
---|
528 | //resourceManager->mUseNormalMapping = true;
|
---|
529 | //resourceManager->mUseNormalMapping = false;
|
---|
530 |
|
---|
531 | //LoadModel("fisch.dem", dynamicObjects);
|
---|
532 | LoadModel("hbuddha.dem", dynamicObjects);
|
---|
533 | //LoadModel("venusm.dem", dynamicObjects);
|
---|
534 | //LoadModel("camel.dem", dynamicObjects);
|
---|
535 | //LoadModel("toyplane2.dem", dynamicObjects);
|
---|
536 | //LoadModel("elephal.dem", dynamicObjects);
|
---|
537 |
|
---|
538 | resourceManager->mUseNormalMapping = false;
|
---|
539 |
|
---|
540 | buddha = dynamicObjects.back();
|
---|
541 |
|
---|
542 | const Vector3 sceneCenter(470.398f, 240.364f, 181.7f);
|
---|
543 | //const Vector3 sceneCenter(470.398f, 240.364f, 180.3);
|
---|
544 |
|
---|
545 | Matrix4x4 transl = TranslationMatrix(sceneCenter);
|
---|
546 | buddha->GetTransform()->SetMatrix(transl);
|
---|
547 |
|
---|
548 | for (int i = 0; i < 10; ++ i)
|
---|
549 | {
|
---|
550 | SceneEntity *ent = new SceneEntity(*buddha);
|
---|
551 | resourceManager->AddSceneEntity(ent);
|
---|
552 |
|
---|
553 | Vector3 offs = Vector3::ZERO();
|
---|
554 |
|
---|
555 | offs.x = RandomValue(.0f, 50.0f);
|
---|
556 | offs.y = RandomValue(.0f, 50.0f);
|
---|
557 |
|
---|
558 | Vector3 newPos = sceneCenter + offs;
|
---|
559 |
|
---|
560 | transl = TranslationMatrix(newPos);
|
---|
561 | Transform3 *transform = resourceManager->CreateTransform(transl);
|
---|
562 |
|
---|
563 | ent->SetTransform(transform);
|
---|
564 | dynamicObjects.push_back(ent);
|
---|
565 | }
|
---|
566 |
|
---|
567 |
|
---|
568 | ///////////
|
---|
569 | //-- load the associated static bvh
|
---|
570 |
|
---|
571 | const string bvh_filename = string(model_path + "city.bvh");
|
---|
572 |
|
---|
573 | BvhLoader bvhLoader;
|
---|
574 | bvh = bvhLoader.Load(bvh_filename, sceneEntities, dynamicObjects, maxDepthForTestingChildren);
|
---|
575 |
|
---|
576 | if (!bvh)
|
---|
577 | {
|
---|
578 | cerr << "loading bvh " << bvh_filename << " failed" << endl;
|
---|
579 | CleanUp();
|
---|
580 | exit(0);
|
---|
581 | }
|
---|
582 |
|
---|
583 | /// set the depth of the bvh depending on the triangles per leaf node
|
---|
584 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
585 |
|
---|
586 | // set far plane based on scene extent
|
---|
587 | farDist = 10.0f * Magnitude(bvh->GetBox().Diagonal());
|
---|
588 | camera->SetFar(farDist);
|
---|
589 |
|
---|
590 |
|
---|
591 | //////////////////
|
---|
592 | //-- setup the skydome model
|
---|
593 |
|
---|
594 | LoadModel("sky.dem", sceneEntities);
|
---|
595 | skyDome = sceneEntities.back();
|
---|
596 |
|
---|
597 | /// the turbitity of the sky (from clear to hazy, use <3 for clear sky)
|
---|
598 | preetham = new SkyPreetham(turbitity, skyDome);
|
---|
599 |
|
---|
600 | CreateAnimation();
|
---|
601 |
|
---|
602 |
|
---|
603 | //////////////////////////
|
---|
604 | //-- a bounding box representing the sun pos in order to test visibility
|
---|
605 |
|
---|
606 | Transform3 *trafo = resourceManager->CreateTransform(IdentityMatrix());
|
---|
607 |
|
---|
608 | // make it slightly bigger to simulate sun diameter
|
---|
609 | const float size = 25.0f;
|
---|
610 | AxisAlignedBox3 sbox(Vector3(-size), Vector3(size));
|
---|
611 |
|
---|
612 | SceneEntityConverter conv;
|
---|
613 |
|
---|
614 | // toto clean up material
|
---|
615 | Material *mat = resourceManager->CreateMaterial();
|
---|
616 |
|
---|
617 | mat->GetTechnique(0)->SetDepthWriteEnabled(false);
|
---|
618 | mat->GetTechnique(0)->SetColorWriteEnabled(false);
|
---|
619 |
|
---|
620 | sunBox = conv.ConvertBox(sbox, mat, trafo);
|
---|
621 |
|
---|
622 | resourceManager->AddSceneEntity(sunBox);
|
---|
623 |
|
---|
624 | /// create single occlusion query that handles sun visibility
|
---|
625 | glGenQueriesARB(1, &sunQuery);
|
---|
626 |
|
---|
627 |
|
---|
628 | //////////
|
---|
629 | //-- initialize the traversal algorithm
|
---|
630 |
|
---|
631 | traverser = CreateTraverser(camera);
|
---|
632 |
|
---|
633 | // the bird-eye visualization
|
---|
634 | visualization = new Visualization(bvh, camera, NULL, &renderState);
|
---|
635 |
|
---|
636 | // this function assign the render queue bucket ids of the materials in beforehand
|
---|
637 | // => probably a little less overhead for new parts of the scene that are not yet assigned
|
---|
638 | PrepareRenderQueue();
|
---|
639 | /// forward rendering is the default
|
---|
640 | renderState.SetRenderTechnique(FORWARD);
|
---|
641 | // frame time is restarted every frame
|
---|
642 | frameTimer.Start();
|
---|
643 |
|
---|
644 | // the rendering loop
|
---|
645 | glutMainLoop();
|
---|
646 |
|
---|
647 | // clean up
|
---|
648 | CleanUp();
|
---|
649 |
|
---|
650 | return 0;
|
---|
651 | }
|
---|
652 |
|
---|
653 |
|
---|
654 | void InitFBO()
|
---|
655 | {
|
---|
656 | PrintGLerror("fbo start");
|
---|
657 |
|
---|
658 | // this fbo basicly stores the scene information we get from standard rendering of a frame
|
---|
659 | // we store diffuse colors, eye space depth and normals
|
---|
660 | fbo = new FrameBufferObject(texWidth, texHeight, FrameBufferObject::DEPTH_32);
|
---|
661 |
|
---|
662 | // the diffuse color buffer
|
---|
663 | fbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR, ColorBufferObject::FILTER_NEAREST);
|
---|
664 | // the normals buffer
|
---|
665 | //fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
|
---|
666 | fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
667 | // a rgb buffer which could hold material properties
|
---|
668 | //fbo->AddColorBuffer(ColorBufferObject::RGB_UBYTE, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
|
---|
669 | // buffer holding the difference vector to the old frame
|
---|
670 | fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
671 | // another color buffer
|
---|
672 | fbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR, ColorBufferObject::FILTER_NEAREST);
|
---|
673 |
|
---|
674 | for (int i = 0; i < 4; ++ i)
|
---|
675 | {
|
---|
676 | FrameBufferObject::InitBuffer(fbo, i);
|
---|
677 | }
|
---|
678 |
|
---|
679 | PrintGLerror("init fbo");
|
---|
680 | }
|
---|
681 |
|
---|
682 |
|
---|
683 | bool InitFont(void)
|
---|
684 | {
|
---|
685 | glEnable(GL_TEXTURE_2D);
|
---|
686 |
|
---|
687 | glGenTextures(1, &fontTex);
|
---|
688 | glBindTexture(GL_TEXTURE_2D, fontTex);
|
---|
689 |
|
---|
690 | if (!myfont.Create("data/fonts/verdana.glf", fontTex))
|
---|
691 | return false;
|
---|
692 |
|
---|
693 | glDisable(GL_TEXTURE_2D);
|
---|
694 |
|
---|
695 | return true;
|
---|
696 | }
|
---|
697 |
|
---|
698 |
|
---|
699 | void InitGLstate()
|
---|
700 | {
|
---|
701 | glClearColor(0.4f, 0.4f, 0.4f, 1.0f);
|
---|
702 |
|
---|
703 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
---|
704 | glPixelStorei(GL_PACK_ALIGNMENT,1);
|
---|
705 |
|
---|
706 | glDepthFunc(GL_LESS);
|
---|
707 | glEnable(GL_DEPTH_TEST);
|
---|
708 |
|
---|
709 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
710 | glShadeModel(GL_SMOOTH);
|
---|
711 |
|
---|
712 | glMaterialf(GL_FRONT, GL_SHININESS, 64);
|
---|
713 | glEnable(GL_NORMALIZE);
|
---|
714 |
|
---|
715 | glDisable(GL_ALPHA_TEST);
|
---|
716 | glAlphaFunc(GL_GEQUAL, 0.5f);
|
---|
717 |
|
---|
718 | glFrontFace(GL_CCW);
|
---|
719 | glCullFace(GL_BACK);
|
---|
720 | glEnable(GL_CULL_FACE);
|
---|
721 |
|
---|
722 | glDisable(GL_TEXTURE_2D);
|
---|
723 |
|
---|
724 | GLfloat ambientColor[] = {0.2, 0.2, 0.2, 1.0};
|
---|
725 | GLfloat diffuseColor[] = {1.0, 0.0, 0.0, 1.0};
|
---|
726 | GLfloat specularColor[] = {0.0, 0.0, 0.0, 1.0};
|
---|
727 |
|
---|
728 | glMaterialfv(GL_FRONT, GL_AMBIENT, ambientColor);
|
---|
729 | glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuseColor);
|
---|
730 | glMaterialfv(GL_FRONT, GL_SPECULAR, specularColor);
|
---|
731 |
|
---|
732 | glDepthFunc(GL_LESS);
|
---|
733 |
|
---|
734 | if (!InitFont())
|
---|
735 | cerr << "font creation failed" << endl;
|
---|
736 | else
|
---|
737 | cout << "successfully created font" << endl;
|
---|
738 |
|
---|
739 |
|
---|
740 | //////////////////////////////
|
---|
741 |
|
---|
742 | //GLfloat lmodel_ambient[] = {1.0f, 1.0f, 1.0f, 1.0f};
|
---|
743 | GLfloat lmodel_ambient[] = {0.7f, 0.7f, 0.8f, 1.0f};
|
---|
744 |
|
---|
745 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
|
---|
746 | //glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
|
---|
747 | glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_FALSE);
|
---|
748 | glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL_EXT, GL_SINGLE_COLOR_EXT);
|
---|
749 | }
|
---|
750 |
|
---|
751 |
|
---|
752 | void DrawHelpMessage()
|
---|
753 | {
|
---|
754 | const char *message[] =
|
---|
755 | {
|
---|
756 | "Help information",
|
---|
757 | "",
|
---|
758 | "'F1' - shows/dismisses this message",
|
---|
759 | "'F2' - shows/hides bird eye view",
|
---|
760 | "'F3' - shows/hides bounds (boxes or tight bounds)",
|
---|
761 | "'F4', - shows/hides parameters",
|
---|
762 | "'F5' - shows/hides statistics",
|
---|
763 | "'F6', - toggles between fly/walkmode",
|
---|
764 | "'F7', - cycles throw render modes",
|
---|
765 | "'F8', - enables/disables ambient occlusion (only deferred)",
|
---|
766 | "'F9', - shows pure algorithm render time (using glFinish)",
|
---|
767 | "'SPACE' - cycles through occlusion culling algorithms",
|
---|
768 | "",
|
---|
769 | "'MOUSE LEFT' - turn left/right, move forward/backward",
|
---|
770 | "'MOUSE RIGHT' - turn left/right, move forward/backward",
|
---|
771 | "'MOUSE MIDDLE' - move up/down, left/right",
|
---|
772 | "'CURSOR UP/DOWN' - move forward/backward",
|
---|
773 | "'CURSOR LEFT/RIGHT' - turn left/right",
|
---|
774 | "",
|
---|
775 | "'-'/'+' - decreases/increases max batch size",
|
---|
776 | "'1'/'2' - downward/upward motion",
|
---|
777 | "'3'/'4' - decreases/increases triangles per virtual bvh leaf (sets bvh depth)",
|
---|
778 | "'5'/'6' - decreases/increases assumed visible frames",
|
---|
779 | "",
|
---|
780 | "'R' - use render queue",
|
---|
781 | "'B' - use tight bounds",
|
---|
782 | "'M' - use multiqueries",
|
---|
783 | "'O' - use CHC optimization (geometry queries for leaves)",
|
---|
784 | 0,
|
---|
785 | };
|
---|
786 |
|
---|
787 |
|
---|
788 | glColor4f(0.0f, 1.0f , 0.0f, 0.2f); // 20% green.
|
---|
789 |
|
---|
790 | glRecti(30, 30, winWidth - 30, winHeight - 30);
|
---|
791 |
|
---|
792 | glEnd();
|
---|
793 |
|
---|
794 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
795 |
|
---|
796 | glEnable(GL_TEXTURE_2D);
|
---|
797 | myfont.Begin();
|
---|
798 |
|
---|
799 | int x = 40, y = 30;
|
---|
800 |
|
---|
801 | for(int i = 0; message[i] != 0; ++ i)
|
---|
802 | {
|
---|
803 | if(message[i][0] == '\0')
|
---|
804 | {
|
---|
805 | y += 15;
|
---|
806 | }
|
---|
807 | else
|
---|
808 | {
|
---|
809 | myfont.DrawString(message[i], x, winHeight - y);
|
---|
810 | y += 25;
|
---|
811 | }
|
---|
812 | }
|
---|
813 | glDisable(GL_TEXTURE_2D);
|
---|
814 | }
|
---|
815 |
|
---|
816 |
|
---|
817 | RenderTraverser *CreateTraverser(PerspectiveCamera *cam)
|
---|
818 | {
|
---|
819 | RenderTraverser *tr;
|
---|
820 |
|
---|
821 | switch (renderMode)
|
---|
822 | {
|
---|
823 | case RenderTraverser::CULL_FRUSTUM:
|
---|
824 | tr = new FrustumCullingTraverser();
|
---|
825 | break;
|
---|
826 | case RenderTraverser::STOP_AND_WAIT:
|
---|
827 | tr = new StopAndWaitTraverser();
|
---|
828 | break;
|
---|
829 | case RenderTraverser::CHC:
|
---|
830 | tr = new CHCTraverser();
|
---|
831 | break;
|
---|
832 | case RenderTraverser::CHCPLUSPLUS:
|
---|
833 | tr = new CHCPlusPlusTraverser();
|
---|
834 | break;
|
---|
835 |
|
---|
836 | default:
|
---|
837 | tr = new FrustumCullingTraverser();
|
---|
838 | }
|
---|
839 |
|
---|
840 | tr->SetCamera(cam);
|
---|
841 | tr->SetHierarchy(bvh);
|
---|
842 | tr->SetRenderQueue(renderQueue);
|
---|
843 | tr->SetRenderState(&renderState);
|
---|
844 | tr->SetUseOptimization(useOptimization);
|
---|
845 | tr->SetUseRenderQueue(useRenderQueue);
|
---|
846 | tr->SetVisibilityThreshold(threshold);
|
---|
847 | tr->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
848 | tr->SetMaxBatchSize(maxBatchSize);
|
---|
849 | tr->SetUseMultiQueries(useMultiQueries);
|
---|
850 | tr->SetUseTightBounds(useTightBounds);
|
---|
851 | tr->SetUseDepthPass((renderMethod == RENDER_DEPTH_PASS) || (renderMethod == RENDER_DEPTH_PASS_DEFERRED));
|
---|
852 | tr->SetRenderQueue(renderQueue);
|
---|
853 | tr->SetShowBounds(showBoundingVolumes);
|
---|
854 |
|
---|
855 | bvh->ResetNodeClassifications();
|
---|
856 |
|
---|
857 |
|
---|
858 | return tr;
|
---|
859 | }
|
---|
860 |
|
---|
861 | /** Setup sunlight
|
---|
862 | */
|
---|
863 | void SetupLighting()
|
---|
864 | {
|
---|
865 | glEnable(GL_LIGHT0);
|
---|
866 | glDisable(GL_LIGHT1);
|
---|
867 |
|
---|
868 | Vector3 lightDir = -light->GetDirection();
|
---|
869 |
|
---|
870 |
|
---|
871 | ///////////
|
---|
872 | //-- first light: sunlight
|
---|
873 |
|
---|
874 | GLfloat ambient[] = {0.25f, 0.25f, 0.3f, 1.0f};
|
---|
875 | GLfloat diffuse[] = {1.0f, 0.95f, 0.85f, 1.0f};
|
---|
876 | GLfloat specular[] = {1.0f, 1.0f, 1.0f, 1.0f};
|
---|
877 |
|
---|
878 |
|
---|
879 | const bool useHDRValues =
|
---|
880 | ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) ||
|
---|
881 | (renderMethod == RENDER_DEFERRED)) && useHDR;
|
---|
882 |
|
---|
883 |
|
---|
884 | Vector3 sunAmbient;
|
---|
885 | Vector3 sunDiffuse;
|
---|
886 |
|
---|
887 | #if 1
|
---|
888 | preetham->ComputeSunColor(lightDir, sunAmbient, sunDiffuse, !useHDRValues);
|
---|
889 |
|
---|
890 | ambient[0] = sunAmbient.x;
|
---|
891 | ambient[1] = sunAmbient.y;
|
---|
892 | ambient[2] = sunAmbient.z;
|
---|
893 |
|
---|
894 | diffuse[0] = sunDiffuse.x;
|
---|
895 | diffuse[1] = sunDiffuse.y;
|
---|
896 | diffuse[2] = sunDiffuse.z;
|
---|
897 |
|
---|
898 | #else
|
---|
899 |
|
---|
900 | ambient[0] = .2f;
|
---|
901 | ambient[1] = .2f;
|
---|
902 | ambient[2] = .2f;
|
---|
903 |
|
---|
904 | diffuse[0] = 1.0f;
|
---|
905 | diffuse[1] = 1.0f;
|
---|
906 | diffuse[2] = 1.0f;
|
---|
907 |
|
---|
908 | #endif
|
---|
909 |
|
---|
910 | glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
|
---|
911 | glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
|
---|
912 | glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
|
---|
913 |
|
---|
914 | GLfloat position[] = {lightDir.x, lightDir.y, lightDir.z, 0.0f};
|
---|
915 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
916 | }
|
---|
917 |
|
---|
918 |
|
---|
919 | void SetupEyeView()
|
---|
920 | {
|
---|
921 | // store matrix of last frame
|
---|
922 | oldViewProjMat = viewProjMat;
|
---|
923 |
|
---|
924 | camera->SetupViewProjection();
|
---|
925 |
|
---|
926 |
|
---|
927 | /////////////////
|
---|
928 | //-- compute view projection matrix and store for later use
|
---|
929 |
|
---|
930 | Matrix4x4 matViewing, matProjection;
|
---|
931 |
|
---|
932 | camera->GetModelViewMatrix(matViewing);
|
---|
933 | camera->GetProjectionMatrix(matProjection);
|
---|
934 |
|
---|
935 | viewProjMat = matViewing * matProjection;
|
---|
936 | }
|
---|
937 |
|
---|
938 |
|
---|
939 | void KeyHorizontalMotion(float shift)
|
---|
940 | {
|
---|
941 | Vector3 hvec = -camera->GetDirection();
|
---|
942 | hvec.z = 0;
|
---|
943 |
|
---|
944 | Vector3 pos = camera->GetPosition();
|
---|
945 | pos += hvec * shift;
|
---|
946 |
|
---|
947 | camera->SetPosition(pos);
|
---|
948 | }
|
---|
949 |
|
---|
950 |
|
---|
951 | void KeyVerticalMotion(float shift)
|
---|
952 | {
|
---|
953 | Vector3 uvec = Vector3(0, 0, shift);
|
---|
954 |
|
---|
955 | Vector3 pos = camera->GetPosition();
|
---|
956 | pos += uvec;
|
---|
957 |
|
---|
958 | camera->SetPosition(pos);
|
---|
959 | }
|
---|
960 |
|
---|
961 |
|
---|
962 | void KeyStrafe(float shift)
|
---|
963 | {
|
---|
964 | Vector3 viewDir = camera->GetDirection();
|
---|
965 | Vector3 pos = camera->GetPosition();
|
---|
966 |
|
---|
967 | // the 90 degree rotated view vector
|
---|
968 | // z zero so we don't move in the vertical
|
---|
969 | Vector3 rVec(viewDir[0], viewDir[1], 0);
|
---|
970 |
|
---|
971 | Matrix4x4 rot = RotationZMatrix(M_PI * 0.5f);
|
---|
972 | rVec = rot * rVec;
|
---|
973 | pos += rVec * shift;
|
---|
974 |
|
---|
975 | camera->SetPosition(pos);
|
---|
976 | }
|
---|
977 |
|
---|
978 |
|
---|
979 | /** Initialize the deferred rendering pass.
|
---|
980 | */
|
---|
981 | void InitDeferredRendering()
|
---|
982 | {
|
---|
983 | if (!fbo) InitFBO();
|
---|
984 | fbo->Bind();
|
---|
985 |
|
---|
986 | // multisampling does not work with deferred shading
|
---|
987 | glDisable(GL_MULTISAMPLE_ARB);
|
---|
988 | renderState.SetRenderTechnique(DEFERRED);
|
---|
989 |
|
---|
990 |
|
---|
991 | // draw to 3 render targets
|
---|
992 | if (sCurrentMrtSet == 0)
|
---|
993 | {
|
---|
994 | DeferredRenderer::colorBufferIdx = 0;
|
---|
995 | glDrawBuffers(3, mrt);
|
---|
996 | }
|
---|
997 | else
|
---|
998 | {
|
---|
999 | DeferredRenderer::colorBufferIdx = 3;
|
---|
1000 | glDrawBuffers(3, mrt2);
|
---|
1001 | }
|
---|
1002 |
|
---|
1003 | sCurrentMrtSet = 1 - sCurrentMrtSet;
|
---|
1004 | }
|
---|
1005 |
|
---|
1006 |
|
---|
1007 | /** the main rendering loop
|
---|
1008 | */
|
---|
1009 | void MainLoop()
|
---|
1010 | {
|
---|
1011 | #if TODO
|
---|
1012 | GPUProgramParameters *vtxParams =
|
---|
1013 | buddha->GetShape(0)->GetMaterial()->GetTechnique(1)->GetVertexProgramParameters();
|
---|
1014 |
|
---|
1015 | Matrix4x4 oldTrafo = buddha->GetTransform()->GetMatrix();
|
---|
1016 | Vector3 buddhaPos = motionPath->GetCurrentPosition();
|
---|
1017 | Matrix4x4 trafo = TranslationMatrix(buddhaPos);
|
---|
1018 |
|
---|
1019 | buddha->GetTransform()->SetMatrix(trafo);
|
---|
1020 |
|
---|
1021 | /*for (int i = 0; i < 10; ++ i)
|
---|
1022 | {
|
---|
1023 | SceneEntity *ent = dynamicObjects[i];
|
---|
1024 | Vector3 newPos = ent->GetWorldCenter();
|
---|
1025 |
|
---|
1026 | if (GetOrCreateSceneQuery()->CalcIntersection(newPos))
|
---|
1027 | {
|
---|
1028 | Matrix4x4 mat = TranslationMatrix(newPos - ent->GetCenter());
|
---|
1029 | ent->GetTransform()->SetMatrix(mat);
|
---|
1030 | }
|
---|
1031 | }*/
|
---|
1032 |
|
---|
1033 | Matrix4x4 rotMatrix = RotationZMatrix(M_PI * 1e-3f);
|
---|
1034 | dynamicObjects[1]->GetTransform()->MultMatrix(rotMatrix);
|
---|
1035 |
|
---|
1036 |
|
---|
1037 | /////////////////////////
|
---|
1038 | //-- update animations
|
---|
1039 |
|
---|
1040 | motionPath->Move(0.01f);
|
---|
1041 |
|
---|
1042 | #endif
|
---|
1043 |
|
---|
1044 |
|
---|
1045 | /////////////
|
---|
1046 |
|
---|
1047 | static Vector3 oldPos = camera->GetPosition();
|
---|
1048 | static Vector3 oldDir = camera->GetDirection();
|
---|
1049 |
|
---|
1050 | if (leftKeyPressed)
|
---|
1051 | camera->Pitch(KeyRotationAngle());
|
---|
1052 | if (rightKeyPressed)
|
---|
1053 | camera->Pitch(-KeyRotationAngle());
|
---|
1054 | if (upKeyPressed)
|
---|
1055 | KeyHorizontalMotion(-KeyShift());
|
---|
1056 | if (downKeyPressed)
|
---|
1057 | KeyHorizontalMotion(KeyShift());
|
---|
1058 | if (ascendKeyPressed)
|
---|
1059 | KeyVerticalMotion(KeyShift());
|
---|
1060 | if (descendKeyPressed)
|
---|
1061 | KeyVerticalMotion(-KeyShift());
|
---|
1062 | if (leftStrafeKeyPressed)
|
---|
1063 | KeyStrafe(KeyShift());
|
---|
1064 | if (rightStrafeKeyPressed)
|
---|
1065 | KeyStrafe(-KeyShift());
|
---|
1066 |
|
---|
1067 |
|
---|
1068 | // place view on ground
|
---|
1069 | if (!flyMode) PlaceViewer(oldPos);
|
---|
1070 |
|
---|
1071 | if (showAlgorithmTime)
|
---|
1072 | {
|
---|
1073 | glFinish();
|
---|
1074 | algTimer.Start();
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 | // don't allow replay on record
|
---|
1078 | if (replayPath && !recordPath)
|
---|
1079 | {
|
---|
1080 | if (!walkThroughPlayer)
|
---|
1081 | walkThroughPlayer = new WalkThroughPlayer("frames.log");
|
---|
1082 |
|
---|
1083 | ++ currentReplayFrame;
|
---|
1084 |
|
---|
1085 | if (!walkThroughPlayer->ReadNextFrame(camera))
|
---|
1086 | {
|
---|
1087 | currentReplayFrame = -1;
|
---|
1088 | replayPath = false;
|
---|
1089 | }
|
---|
1090 | }
|
---|
1091 |
|
---|
1092 | if ((!shadowMap || !shadowTraverser) && (showShadowMap || renderLightView))
|
---|
1093 | {
|
---|
1094 | if (!shadowMap)
|
---|
1095 | shadowMap = new ShadowMap(light, shadowSize, bvh->GetBox(), camera);
|
---|
1096 |
|
---|
1097 | if (!shadowTraverser)
|
---|
1098 | shadowTraverser = CreateTraverser(shadowMap->GetShadowCamera());
|
---|
1099 |
|
---|
1100 | }
|
---|
1101 |
|
---|
1102 | // bring eye modelview matrix up-to-date
|
---|
1103 | SetupEyeView();
|
---|
1104 |
|
---|
1105 | // set frame related parameters for GPU programs
|
---|
1106 | GPUProgramParameters::InitFrame(camera, light);
|
---|
1107 |
|
---|
1108 | if (recordPath)
|
---|
1109 | {
|
---|
1110 | if (!walkThroughRecorder)
|
---|
1111 | walkThroughRecorder = new WalkThroughRecorder("frames.log");
|
---|
1112 |
|
---|
1113 | if ((Distance(oldPos, camera->GetPosition()) > 1e-6f) ||
|
---|
1114 | (DotProd(oldDir, camera->GetDirection()) < 1.0f - 1e-6f))
|
---|
1115 | {
|
---|
1116 | walkThroughRecorder->WriteFrame(camera);
|
---|
1117 | }
|
---|
1118 | }
|
---|
1119 |
|
---|
1120 | // hack: store current rendering method and restore later
|
---|
1121 | int oldRenderMethod = renderMethod;
|
---|
1122 | // for rendering the light view, we use forward rendering
|
---|
1123 | if (renderLightView) renderMethod = FORWARD;
|
---|
1124 |
|
---|
1125 | /// enable vbo vertex array
|
---|
1126 | glEnableClientState(GL_VERTEX_ARRAY);
|
---|
1127 |
|
---|
1128 | // render with the specified method (forward rendering, forward + depth, deferred)
|
---|
1129 | switch (renderMethod)
|
---|
1130 | {
|
---|
1131 | case RENDER_FORWARD:
|
---|
1132 |
|
---|
1133 | glEnable(GL_MULTISAMPLE_ARB);
|
---|
1134 | renderState.SetRenderTechnique(FORWARD);
|
---|
1135 | //glEnable(GL_LIGHTING);
|
---|
1136 |
|
---|
1137 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1138 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
1139 | break;
|
---|
1140 |
|
---|
1141 | case RENDER_DEPTH_PASS_DEFERRED:
|
---|
1142 |
|
---|
1143 | glDisable(GL_MULTISAMPLE_ARB);
|
---|
1144 | renderState.SetUseAlphaToCoverage(false);
|
---|
1145 | renderState.SetRenderTechnique(DEPTH_PASS);
|
---|
1146 |
|
---|
1147 | if (!fbo) InitFBO();
|
---|
1148 | fbo->Bind();
|
---|
1149 |
|
---|
1150 | glDrawBuffers(1, mrt);
|
---|
1151 |
|
---|
1152 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1153 |
|
---|
1154 | // the scene is rendered withouth any shading
|
---|
1155 | // (should be handled by render renderState)
|
---|
1156 | glShadeModel(GL_FLAT);
|
---|
1157 | break;
|
---|
1158 |
|
---|
1159 | case RENDER_DEPTH_PASS:
|
---|
1160 |
|
---|
1161 | glEnable(GL_MULTISAMPLE_ARB);
|
---|
1162 | renderState.SetRenderTechnique(DEPTH_PASS);
|
---|
1163 |
|
---|
1164 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1165 |
|
---|
1166 | // the scene is rendered withouth any shading
|
---|
1167 | // (should be handled by render renderState)
|
---|
1168 | glShadeModel(GL_FLAT);
|
---|
1169 | break;
|
---|
1170 |
|
---|
1171 | case RENDER_DEFERRED:
|
---|
1172 |
|
---|
1173 | if (showShadowMap && !renderLightView)
|
---|
1174 | RenderShadowMap(camera->GetFar());
|
---|
1175 |
|
---|
1176 | //glPushAttrib(GL_VIEWPORT_BIT);
|
---|
1177 | glViewport(0, 0, texWidth, texHeight);
|
---|
1178 |
|
---|
1179 | InitDeferredRendering();
|
---|
1180 |
|
---|
1181 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
1182 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1183 | break;
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 | glDepthFunc(GL_LESS);
|
---|
1187 | glDisable(GL_TEXTURE_2D);
|
---|
1188 | glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
---|
1189 |
|
---|
1190 |
|
---|
1191 | // set proper lod levels for current frame using current eye point
|
---|
1192 | LODLevel::InitFrame(camera->GetPosition());
|
---|
1193 | // set up sunlight
|
---|
1194 | SetupLighting();
|
---|
1195 |
|
---|
1196 |
|
---|
1197 | if (renderLightView)
|
---|
1198 | {
|
---|
1199 | // change CHC++ set of renderState variables:
|
---|
1200 | // must be done for each change of camera because otherwise
|
---|
1201 | // the temporal coherency is broken
|
---|
1202 | BvhNode::SetCurrentState(LIGHT_PASS);
|
---|
1203 | shadowMap->RenderShadowView(shadowTraverser, viewProjMat);
|
---|
1204 | BvhNode::SetCurrentState(CAMERA_PASS);
|
---|
1205 | }
|
---|
1206 | else
|
---|
1207 | {
|
---|
1208 | // actually render the scene geometry using the specified algorithm
|
---|
1209 | traverser->RenderScene();
|
---|
1210 | }
|
---|
1211 |
|
---|
1212 |
|
---|
1213 | /////////
|
---|
1214 | //-- do the rest of the rendering
|
---|
1215 |
|
---|
1216 | // reset depth pass and render visible objects
|
---|
1217 | if ((renderMethod == RENDER_DEPTH_PASS) ||
|
---|
1218 | (renderMethod == RENDER_DEPTH_PASS_DEFERRED))
|
---|
1219 | {
|
---|
1220 | RenderVisibleObjects();
|
---|
1221 | }
|
---|
1222 |
|
---|
1223 | const bool useDeferred =
|
---|
1224 | ((renderMethod == RENDER_DEFERRED) || (renderMethod == RENDER_DEPTH_PASS_DEFERRED));
|
---|
1225 |
|
---|
1226 | // if no lense flare => just set sun to invisible
|
---|
1227 | int sunVisiblePixels = useLenseFlare && useDeferred ? TestSunVisible() : 0;
|
---|
1228 |
|
---|
1229 |
|
---|
1230 | ///////////////
|
---|
1231 | //-- render sky
|
---|
1232 |
|
---|
1233 | // q: should we render sky after deferred shading?
|
---|
1234 | // this would conveniently solves some issues (e.g, skys without shadows)
|
---|
1235 |
|
---|
1236 | RenderSky();
|
---|
1237 |
|
---|
1238 |
|
---|
1239 | if (useDeferred)
|
---|
1240 | {
|
---|
1241 | FrameBufferObject::Release();
|
---|
1242 |
|
---|
1243 | if (!deferredShader) deferredShader =
|
---|
1244 | new DeferredRenderer(texWidth, texHeight, camera, ssaoUseFullResolution);
|
---|
1245 |
|
---|
1246 | DeferredRenderer::SHADING_METHOD shadingMethod;
|
---|
1247 |
|
---|
1248 | if (useAdvancedShading)
|
---|
1249 | {
|
---|
1250 | if (useGlobIllum)
|
---|
1251 | shadingMethod = DeferredRenderer::GI;
|
---|
1252 | else
|
---|
1253 | shadingMethod = DeferredRenderer::SSAO;
|
---|
1254 | }
|
---|
1255 | else
|
---|
1256 | {
|
---|
1257 | shadingMethod = DeferredRenderer::DEFAULT;
|
---|
1258 | }
|
---|
1259 |
|
---|
1260 | deferredShader->SetSunVisiblePixels(sunVisiblePixels);
|
---|
1261 | deferredShader->SetShadingMethod(shadingMethod);
|
---|
1262 | deferredShader->SetSamplingMethod(samplingMethod);
|
---|
1263 | deferredShader->SetKernelRadius(ssaoKernelRadius);
|
---|
1264 | deferredShader->SetSampleIntensity(ssaoSampleIntensity);
|
---|
1265 | deferredShader->SetSsaoFilterRadius(ssaoFilterRadius);
|
---|
1266 | deferredShader->SetUseTemporalCoherence(useTemporalCoherence);
|
---|
1267 | deferredShader->SetSortSamples(sortSamples);
|
---|
1268 | deferredShader->SetSaveFrame(recordedFramesSuffix, (recordFrames && replayPath) ? currentReplayFrame : -1);
|
---|
1269 |
|
---|
1270 | ShadowMap *sm = showShadowMap ? shadowMap : NULL;
|
---|
1271 | deferredShader->Render(fbo, ssaoTempCohFactor, light, useHDR, useAntiAliasing, sm);
|
---|
1272 | }
|
---|
1273 |
|
---|
1274 |
|
---|
1275 | renderState.SetRenderTechnique(FORWARD);
|
---|
1276 | renderState.Reset();
|
---|
1277 |
|
---|
1278 |
|
---|
1279 | glDisableClientState(GL_VERTEX_ARRAY);
|
---|
1280 | glDisableClientState(GL_NORMAL_ARRAY);
|
---|
1281 |
|
---|
1282 | renderMethod = oldRenderMethod;
|
---|
1283 |
|
---|
1284 |
|
---|
1285 | ///////////
|
---|
1286 |
|
---|
1287 |
|
---|
1288 | if (showAlgorithmTime)
|
---|
1289 | {
|
---|
1290 | glFinish();
|
---|
1291 |
|
---|
1292 | algTime = algTimer.Elapsedms();
|
---|
1293 | perfGraph->AddData(algTime);
|
---|
1294 |
|
---|
1295 | perfGraph->Draw();
|
---|
1296 | }
|
---|
1297 | else
|
---|
1298 | {
|
---|
1299 | if (visMode) DisplayVisualization();
|
---|
1300 | }
|
---|
1301 |
|
---|
1302 | glFlush();
|
---|
1303 |
|
---|
1304 | const bool restart = true;
|
---|
1305 | elapsedTime = frameTimer.Elapsedms(restart);
|
---|
1306 |
|
---|
1307 | DisplayStats();
|
---|
1308 |
|
---|
1309 | glutSwapBuffers();
|
---|
1310 |
|
---|
1311 | oldPos = camera->GetPosition();
|
---|
1312 | oldDir = camera->GetDirection();
|
---|
1313 | }
|
---|
1314 |
|
---|
1315 |
|
---|
1316 | #pragma warning(disable : 4100)
|
---|
1317 | void KeyBoard(unsigned char c, int x, int y)
|
---|
1318 | {
|
---|
1319 | switch(c)
|
---|
1320 | {
|
---|
1321 | case 27:
|
---|
1322 | // write out current position on exit
|
---|
1323 | Debug << "camPosition=" << camera->GetPosition().x << " " << camera->GetPosition().y << " " << camera->GetPosition().z << endl;
|
---|
1324 | Debug << "camDirection=" << camera->GetDirection().x << " " << camera->GetDirection().y << " " << camera->GetDirection().z << endl;
|
---|
1325 |
|
---|
1326 | CleanUp();
|
---|
1327 | exit(0);
|
---|
1328 | case 32: // space
|
---|
1329 | renderMode = (renderMode + 1) % RenderTraverser::NUM_TRAVERSAL_TYPES;
|
---|
1330 |
|
---|
1331 | DEL_PTR(traverser);
|
---|
1332 | traverser = CreateTraverser(camera);
|
---|
1333 |
|
---|
1334 | if (shadowTraverser)
|
---|
1335 | {
|
---|
1336 | // shadow traverser has to be recomputed
|
---|
1337 | DEL_PTR(shadowTraverser);
|
---|
1338 | shadowTraverser = CreateTraverser(shadowMap->GetShadowCamera());
|
---|
1339 | }
|
---|
1340 |
|
---|
1341 | break;
|
---|
1342 | case '+':
|
---|
1343 | if (maxBatchSize < 10)
|
---|
1344 | maxBatchSize = 10;
|
---|
1345 | else
|
---|
1346 | maxBatchSize += 10;
|
---|
1347 |
|
---|
1348 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
1349 | break;
|
---|
1350 | case '-':
|
---|
1351 | maxBatchSize -= 10;
|
---|
1352 | if (maxBatchSize < 0) maxBatchSize = 1;
|
---|
1353 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
1354 | break;
|
---|
1355 | case 'M':
|
---|
1356 | case 'm':
|
---|
1357 | useMultiQueries = !useMultiQueries;
|
---|
1358 | traverser->SetUseMultiQueries(useMultiQueries);
|
---|
1359 | break;
|
---|
1360 | case '1':
|
---|
1361 | descendKeyPressed = true;
|
---|
1362 | break;
|
---|
1363 | case '2':
|
---|
1364 | ascendKeyPressed = true;
|
---|
1365 | break;
|
---|
1366 | case '3':
|
---|
1367 | if (trianglesPerVirtualLeaf >= 100) trianglesPerVirtualLeaf -= 100;
|
---|
1368 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
1369 | break;
|
---|
1370 | case '4':
|
---|
1371 | trianglesPerVirtualLeaf += 100;
|
---|
1372 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
1373 | break;
|
---|
1374 | case '5':
|
---|
1375 | assumedVisibleFrames -= 1;
|
---|
1376 | if (assumedVisibleFrames < 1) assumedVisibleFrames = 1;
|
---|
1377 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
1378 | break;
|
---|
1379 | case '6':
|
---|
1380 | assumedVisibleFrames += 1;
|
---|
1381 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
1382 | break;
|
---|
1383 | case '7':
|
---|
1384 | ssaoTempCohFactor *= 0.5f;
|
---|
1385 | cout << "new temporal coherence factor: " << ssaoTempCohFactor << endl;
|
---|
1386 | break;
|
---|
1387 | case '8':
|
---|
1388 | ssaoTempCohFactor *= 2.0f;
|
---|
1389 | cout << "new temporal coherence factor: " << ssaoTempCohFactor << endl;
|
---|
1390 | break;
|
---|
1391 | case '9':
|
---|
1392 | ssaoKernelRadius *= 0.8f;
|
---|
1393 | cout << "new ssao kernel radius: " << ssaoKernelRadius << endl;
|
---|
1394 | break;
|
---|
1395 | case '0':
|
---|
1396 | ssaoKernelRadius *= 1.2f;
|
---|
1397 | cout << "new ssao kernel radius: " << ssaoKernelRadius << endl;
|
---|
1398 | break;
|
---|
1399 | case 'n':
|
---|
1400 | ssaoSampleIntensity *= 0.9f;
|
---|
1401 | cout << "new ssao sample intensity: " << ssaoSampleIntensity << endl;
|
---|
1402 | break;
|
---|
1403 | case 'N':
|
---|
1404 | ssaoSampleIntensity *= 1.1f;
|
---|
1405 | cout << "new ssao sample intensity: " << ssaoSampleIntensity << endl;
|
---|
1406 | break;
|
---|
1407 | case 'o':
|
---|
1408 | ssaoFilterRadius *= 0.9f;
|
---|
1409 | cout << "new ssao filter radius: " << ssaoFilterRadius << endl;
|
---|
1410 | break;
|
---|
1411 | case 'O':
|
---|
1412 | ssaoFilterRadius *= 1.1f;
|
---|
1413 | cout << "new ssao filter radius: " << ssaoFilterRadius << endl;
|
---|
1414 | break;
|
---|
1415 | /* case 'o':
|
---|
1416 | case 'O':
|
---|
1417 | useOptimization = !useOptimization;
|
---|
1418 | // chc optimization of using the objects instead of
|
---|
1419 | // the bounding boxes for querying previously visible nodes
|
---|
1420 | traverser->SetUseOptimization(useOptimization);
|
---|
1421 | break;*/
|
---|
1422 | case 'l':
|
---|
1423 | case 'L':
|
---|
1424 | useLODs = !useLODs;
|
---|
1425 | SceneEntity::SetUseLODs(useLODs);
|
---|
1426 | cout << "using LODs: " << useLODs << endl;
|
---|
1427 | break;
|
---|
1428 | case 'P':
|
---|
1429 | case 'p':
|
---|
1430 | samplingMethod = DeferredRenderer::SAMPLING_METHOD((samplingMethod + 1) % 3);
|
---|
1431 | cout << "ssao sampling method: " << samplingMethod << endl;
|
---|
1432 | break;
|
---|
1433 | case 'Y':
|
---|
1434 | case 'y':
|
---|
1435 | showShadowMap = !showShadowMap;
|
---|
1436 | break;
|
---|
1437 | case 'g':
|
---|
1438 | case 'G':
|
---|
1439 | useGlobIllum = !useGlobIllum;
|
---|
1440 | break;
|
---|
1441 | case 't':
|
---|
1442 | case 'T':
|
---|
1443 | useTemporalCoherence = !useTemporalCoherence;
|
---|
1444 | break;
|
---|
1445 | case 'a':
|
---|
1446 | case 'A':
|
---|
1447 | leftKeyPressed = true;
|
---|
1448 | break;
|
---|
1449 | case 'd':
|
---|
1450 | case 'D':
|
---|
1451 | rightKeyPressed = true;
|
---|
1452 | break;
|
---|
1453 | case 'w':
|
---|
1454 | case 'W':
|
---|
1455 | upKeyPressed = true;
|
---|
1456 | break;
|
---|
1457 | case 's':
|
---|
1458 | case 'S':
|
---|
1459 | downKeyPressed = true;
|
---|
1460 | break;
|
---|
1461 | case 'j':
|
---|
1462 | case 'J':
|
---|
1463 | leftStrafeKeyPressed = true;
|
---|
1464 | break;
|
---|
1465 | case 'k':
|
---|
1466 | case 'K':
|
---|
1467 | rightStrafeKeyPressed = true;
|
---|
1468 | break;
|
---|
1469 | case 'r':
|
---|
1470 | case 'R':
|
---|
1471 | useRenderQueue = !useRenderQueue;
|
---|
1472 | traverser->SetUseRenderQueue(useRenderQueue);
|
---|
1473 | break;
|
---|
1474 | case 'b':
|
---|
1475 | case 'B':
|
---|
1476 | useTightBounds = !useTightBounds;
|
---|
1477 | traverser->SetUseTightBounds(useTightBounds);
|
---|
1478 | break;
|
---|
1479 | case 'v':
|
---|
1480 | case 'V':
|
---|
1481 | renderLightView = !renderLightView;
|
---|
1482 | break;
|
---|
1483 | case 'h':
|
---|
1484 | case 'H':
|
---|
1485 | useHDR = !useHDR;
|
---|
1486 | break;
|
---|
1487 | case 'i':
|
---|
1488 | case 'I':
|
---|
1489 | useAntiAliasing = !useAntiAliasing;
|
---|
1490 | break;
|
---|
1491 | case 'c':
|
---|
1492 | case 'C':
|
---|
1493 | useLenseFlare = !useLenseFlare;
|
---|
1494 | break;
|
---|
1495 | case 'u':
|
---|
1496 | case 'U':
|
---|
1497 | // move light source instead of camera tilt
|
---|
1498 | moveLight = !moveLight;
|
---|
1499 | break;
|
---|
1500 | default:
|
---|
1501 | return;
|
---|
1502 | }
|
---|
1503 |
|
---|
1504 | glutPostRedisplay();
|
---|
1505 | }
|
---|
1506 |
|
---|
1507 |
|
---|
1508 | void SpecialKeyUp(int c, int x, int y)
|
---|
1509 | {
|
---|
1510 | switch (c)
|
---|
1511 | {
|
---|
1512 | case GLUT_KEY_LEFT:
|
---|
1513 | leftKeyPressed = false;
|
---|
1514 | break;
|
---|
1515 | case GLUT_KEY_RIGHT:
|
---|
1516 | rightKeyPressed = false;
|
---|
1517 | break;
|
---|
1518 | case GLUT_KEY_UP:
|
---|
1519 | upKeyPressed = false;
|
---|
1520 | break;
|
---|
1521 | case GLUT_KEY_DOWN:
|
---|
1522 | downKeyPressed = false;
|
---|
1523 | break;
|
---|
1524 | case GLUT_ACTIVE_ALT:
|
---|
1525 | altKeyPressed = false;
|
---|
1526 | break;
|
---|
1527 | default:
|
---|
1528 | return;
|
---|
1529 | }
|
---|
1530 | }
|
---|
1531 |
|
---|
1532 |
|
---|
1533 | void KeyUp(unsigned char c, int x, int y)
|
---|
1534 | {
|
---|
1535 | switch (c)
|
---|
1536 | {
|
---|
1537 |
|
---|
1538 | case 'A':
|
---|
1539 | case 'a':
|
---|
1540 | leftKeyPressed = false;
|
---|
1541 | break;
|
---|
1542 | case 'D':
|
---|
1543 | case 'd':
|
---|
1544 | rightKeyPressed = false;
|
---|
1545 | break;
|
---|
1546 | case 'W':
|
---|
1547 | case 'w':
|
---|
1548 | upKeyPressed = false;
|
---|
1549 | break;
|
---|
1550 | case 'S':
|
---|
1551 | case 's':
|
---|
1552 | downKeyPressed = false;
|
---|
1553 | break;
|
---|
1554 | case '1':
|
---|
1555 | descendKeyPressed = false;
|
---|
1556 | break;
|
---|
1557 | case '2':
|
---|
1558 | ascendKeyPressed = false;
|
---|
1559 | break;
|
---|
1560 | case 'j':
|
---|
1561 | case 'J':
|
---|
1562 | leftStrafeKeyPressed = false;
|
---|
1563 | break;
|
---|
1564 | case 'k':
|
---|
1565 | case 'K':
|
---|
1566 | rightStrafeKeyPressed = false;
|
---|
1567 | break;
|
---|
1568 | default:
|
---|
1569 | return;
|
---|
1570 | }
|
---|
1571 | //glutPostRedisplay();
|
---|
1572 | }
|
---|
1573 |
|
---|
1574 |
|
---|
1575 | void Special(int c, int x, int y)
|
---|
1576 | {
|
---|
1577 | switch(c)
|
---|
1578 | {
|
---|
1579 | case GLUT_KEY_F1:
|
---|
1580 | showHelp = !showHelp;
|
---|
1581 | break;
|
---|
1582 | case GLUT_KEY_F2:
|
---|
1583 | visMode = !visMode;
|
---|
1584 | break;
|
---|
1585 | case GLUT_KEY_F3:
|
---|
1586 | showBoundingVolumes = !showBoundingVolumes;
|
---|
1587 | traverser->SetShowBounds(showBoundingVolumes);
|
---|
1588 | break;
|
---|
1589 | case GLUT_KEY_F4:
|
---|
1590 | showOptions = !showOptions;
|
---|
1591 | break;
|
---|
1592 | case GLUT_KEY_F5:
|
---|
1593 | showStatistics = !showStatistics;
|
---|
1594 | break;
|
---|
1595 | case GLUT_KEY_F6:
|
---|
1596 | flyMode = !flyMode;
|
---|
1597 | break;
|
---|
1598 | case GLUT_KEY_F7:
|
---|
1599 |
|
---|
1600 | renderMethod = (renderMethod + 1) % 4;
|
---|
1601 |
|
---|
1602 | traverser->SetUseDepthPass(
|
---|
1603 | (renderMethod == RENDER_DEPTH_PASS) ||
|
---|
1604 | (renderMethod == RENDER_DEPTH_PASS_DEFERRED)
|
---|
1605 | );
|
---|
1606 |
|
---|
1607 | break;
|
---|
1608 | case GLUT_KEY_F8:
|
---|
1609 | useAdvancedShading = !useAdvancedShading;
|
---|
1610 | break;
|
---|
1611 | case GLUT_KEY_F9:
|
---|
1612 | showAlgorithmTime = !showAlgorithmTime;
|
---|
1613 | break;
|
---|
1614 | case GLUT_KEY_F10:
|
---|
1615 | replayPath = !replayPath;
|
---|
1616 |
|
---|
1617 | if (replayPath)
|
---|
1618 | {
|
---|
1619 | cout << "replaying path" << endl;
|
---|
1620 | currentReplayFrame = -1;
|
---|
1621 | }
|
---|
1622 | else
|
---|
1623 | {
|
---|
1624 | cout << "finished replaying path" << endl;
|
---|
1625 | }
|
---|
1626 |
|
---|
1627 | break;
|
---|
1628 | case GLUT_KEY_F11:
|
---|
1629 | recordPath = !recordPath;
|
---|
1630 |
|
---|
1631 | if (recordPath)
|
---|
1632 | {
|
---|
1633 | cout << "recording path" << endl;
|
---|
1634 | }
|
---|
1635 | else
|
---|
1636 | {
|
---|
1637 | cout << "finished recording path" << endl;
|
---|
1638 | // start over with new frame recording next time
|
---|
1639 | DEL_PTR(walkThroughRecorder);
|
---|
1640 | }
|
---|
1641 |
|
---|
1642 | break;
|
---|
1643 | case GLUT_KEY_F12:
|
---|
1644 | recordFrames = !recordFrames;
|
---|
1645 |
|
---|
1646 | if (recordFrames)
|
---|
1647 | cout << "recording frames on replaying" << endl;
|
---|
1648 | else
|
---|
1649 | cout << "finished recording frames on replaying" << endl;
|
---|
1650 | break;
|
---|
1651 | case GLUT_KEY_LEFT:
|
---|
1652 | {
|
---|
1653 | leftKeyPressed = true;
|
---|
1654 | camera->Pitch(KeyRotationAngle());
|
---|
1655 | }
|
---|
1656 | break;
|
---|
1657 | case GLUT_KEY_RIGHT:
|
---|
1658 | {
|
---|
1659 | rightKeyPressed = true;
|
---|
1660 | camera->Pitch(-KeyRotationAngle());
|
---|
1661 | }
|
---|
1662 | break;
|
---|
1663 | case GLUT_KEY_UP:
|
---|
1664 | {
|
---|
1665 | upKeyPressed = true;
|
---|
1666 | KeyHorizontalMotion(KeyShift());
|
---|
1667 | }
|
---|
1668 | break;
|
---|
1669 | case GLUT_KEY_DOWN:
|
---|
1670 | {
|
---|
1671 | downKeyPressed = true;
|
---|
1672 | KeyHorizontalMotion(-KeyShift());
|
---|
1673 | }
|
---|
1674 | break;
|
---|
1675 | default:
|
---|
1676 | return;
|
---|
1677 |
|
---|
1678 | }
|
---|
1679 |
|
---|
1680 | glutPostRedisplay();
|
---|
1681 | }
|
---|
1682 |
|
---|
1683 | #pragma warning( default : 4100 )
|
---|
1684 |
|
---|
1685 |
|
---|
1686 | void Reshape(int w, int h)
|
---|
1687 | {
|
---|
1688 | winAspectRatio = 1.0f;
|
---|
1689 |
|
---|
1690 | glViewport(0, 0, w, h);
|
---|
1691 |
|
---|
1692 | winWidth = w;
|
---|
1693 | winHeight = h;
|
---|
1694 |
|
---|
1695 | if (w) winAspectRatio = (float) w / (float) h;
|
---|
1696 |
|
---|
1697 | glMatrixMode(GL_PROJECTION);
|
---|
1698 | glLoadIdentity();
|
---|
1699 |
|
---|
1700 | gluPerspective(fov, winAspectRatio, nearDist, farDist);
|
---|
1701 |
|
---|
1702 | glMatrixMode(GL_MODELVIEW);
|
---|
1703 |
|
---|
1704 | glutPostRedisplay();
|
---|
1705 | }
|
---|
1706 |
|
---|
1707 |
|
---|
1708 | void Mouse(int button, int renderState, int x, int y)
|
---|
1709 | {
|
---|
1710 | if ((button == GLUT_LEFT_BUTTON) && (renderState == GLUT_DOWN))
|
---|
1711 | {
|
---|
1712 | xEyeBegin = x;
|
---|
1713 | yMotionBegin = y;
|
---|
1714 |
|
---|
1715 | glutMotionFunc(LeftMotion);
|
---|
1716 | }
|
---|
1717 | else if ((button == GLUT_RIGHT_BUTTON) && (renderState == GLUT_DOWN))
|
---|
1718 | {
|
---|
1719 | xEyeBegin = x;
|
---|
1720 | yEyeBegin = y;
|
---|
1721 | yMotionBegin = y;
|
---|
1722 |
|
---|
1723 | if (!moveLight)
|
---|
1724 | glutMotionFunc(RightMotion);
|
---|
1725 | else
|
---|
1726 | glutMotionFunc(RightMotionLight);
|
---|
1727 | }
|
---|
1728 | else if ((button == GLUT_MIDDLE_BUTTON) && (renderState == GLUT_DOWN))
|
---|
1729 | {
|
---|
1730 | horizontalMotionBegin = x;
|
---|
1731 | verticalMotionBegin = y;
|
---|
1732 | glutMotionFunc(MiddleMotion);
|
---|
1733 | }
|
---|
1734 |
|
---|
1735 | glutPostRedisplay();
|
---|
1736 | }
|
---|
1737 |
|
---|
1738 |
|
---|
1739 | /** rotation for left/right mouse drag
|
---|
1740 | motion for up/down mouse drag
|
---|
1741 | */
|
---|
1742 | void LeftMotion(int x, int y)
|
---|
1743 | {
|
---|
1744 | Vector3 viewDir = camera->GetDirection();
|
---|
1745 | Vector3 pos = camera->GetPosition();
|
---|
1746 |
|
---|
1747 | // don't move in the vertical direction
|
---|
1748 | Vector3 horView(viewDir[0], viewDir[1], 0);
|
---|
1749 |
|
---|
1750 | float eyeXAngle = 0.2f * M_PI * (xEyeBegin - x) / 180.0;
|
---|
1751 |
|
---|
1752 | camera->Pitch(eyeXAngle);
|
---|
1753 |
|
---|
1754 | pos += horView * (yMotionBegin - y) * 0.2f;
|
---|
1755 |
|
---|
1756 | camera->SetPosition(pos);
|
---|
1757 |
|
---|
1758 | xEyeBegin = x;
|
---|
1759 | yMotionBegin = y;
|
---|
1760 |
|
---|
1761 | glutPostRedisplay();
|
---|
1762 | }
|
---|
1763 |
|
---|
1764 |
|
---|
1765 | void RightMotionLight(int x, int y)
|
---|
1766 | {
|
---|
1767 | float theta = 0.2f * M_PI * (xEyeBegin - x) / 180.0f;
|
---|
1768 | float phi = 0.2f * M_PI * (yMotionBegin - y) / 180.0f;
|
---|
1769 |
|
---|
1770 | Vector3 lightDir = light->GetDirection();
|
---|
1771 |
|
---|
1772 | Matrix4x4 roty = RotationYMatrix(theta);
|
---|
1773 | Matrix4x4 rotx = RotationXMatrix(phi);
|
---|
1774 |
|
---|
1775 | lightDir = roty * lightDir;
|
---|
1776 | lightDir = rotx * lightDir;
|
---|
1777 |
|
---|
1778 | // normalize to avoid accumulating errors
|
---|
1779 | lightDir.Normalize();
|
---|
1780 |
|
---|
1781 | light->SetDirection(lightDir);
|
---|
1782 |
|
---|
1783 | xEyeBegin = x;
|
---|
1784 | yMotionBegin = y;
|
---|
1785 |
|
---|
1786 | glutPostRedisplay();
|
---|
1787 | }
|
---|
1788 |
|
---|
1789 |
|
---|
1790 | /** rotation for left / right mouse drag
|
---|
1791 | motion for up / down mouse drag
|
---|
1792 | */
|
---|
1793 | void RightMotion(int x, int y)
|
---|
1794 | {
|
---|
1795 | float eyeXAngle = 0.2f * M_PI * (xEyeBegin - x) / 180.0;
|
---|
1796 | float eyeYAngle = -0.2f * M_PI * (yEyeBegin - y) / 180.0;
|
---|
1797 |
|
---|
1798 | camera->Yaw(eyeYAngle);
|
---|
1799 | camera->Pitch(eyeXAngle);
|
---|
1800 |
|
---|
1801 | xEyeBegin = x;
|
---|
1802 | yEyeBegin = y;
|
---|
1803 |
|
---|
1804 | glutPostRedisplay();
|
---|
1805 | }
|
---|
1806 |
|
---|
1807 |
|
---|
1808 | /** strafe
|
---|
1809 | */
|
---|
1810 | void MiddleMotion(int x, int y)
|
---|
1811 | {
|
---|
1812 | Vector3 viewDir = camera->GetDirection();
|
---|
1813 | Vector3 pos = camera->GetPosition();
|
---|
1814 |
|
---|
1815 | // the 90 degree rotated view vector
|
---|
1816 | // y zero so we don't move in the vertical
|
---|
1817 | Vector3 rVec(viewDir[0], viewDir[1], 0);
|
---|
1818 |
|
---|
1819 | Matrix4x4 rot = RotationZMatrix(M_PI * 0.5f);
|
---|
1820 | rVec = rot * rVec;
|
---|
1821 |
|
---|
1822 | pos -= rVec * (x - horizontalMotionBegin) * 0.1f;
|
---|
1823 | pos[2] += (verticalMotionBegin - y) * 0.1f;
|
---|
1824 |
|
---|
1825 | camera->SetPosition(pos);
|
---|
1826 |
|
---|
1827 | horizontalMotionBegin = x;
|
---|
1828 | verticalMotionBegin = y;
|
---|
1829 |
|
---|
1830 | glutPostRedisplay();
|
---|
1831 | }
|
---|
1832 |
|
---|
1833 |
|
---|
1834 | void InitExtensions(void)
|
---|
1835 | {
|
---|
1836 | GLenum err = glewInit();
|
---|
1837 |
|
---|
1838 | if (GLEW_OK != err)
|
---|
1839 | {
|
---|
1840 | // problem: glewInit failed, something is seriously wrong
|
---|
1841 | fprintf(stderr,"Error: %s\n", glewGetErrorString(err));
|
---|
1842 | exit(1);
|
---|
1843 | }
|
---|
1844 | if (!GLEW_ARB_occlusion_query)
|
---|
1845 | {
|
---|
1846 | printf("I require the GL_ARB_occlusion_query to work.\n");
|
---|
1847 | exit(1);
|
---|
1848 | }
|
---|
1849 | }
|
---|
1850 |
|
---|
1851 |
|
---|
1852 | void Begin2D()
|
---|
1853 | {
|
---|
1854 | glDisable(GL_LIGHTING);
|
---|
1855 | glDisable(GL_DEPTH_TEST);
|
---|
1856 |
|
---|
1857 | glMatrixMode(GL_PROJECTION);
|
---|
1858 | glPushMatrix();
|
---|
1859 | glLoadIdentity();
|
---|
1860 |
|
---|
1861 | gluOrtho2D(0, winWidth, 0, winHeight);
|
---|
1862 |
|
---|
1863 | glMatrixMode(GL_MODELVIEW);
|
---|
1864 | glPushMatrix();
|
---|
1865 | glLoadIdentity();
|
---|
1866 | }
|
---|
1867 |
|
---|
1868 |
|
---|
1869 | void End2D()
|
---|
1870 | {
|
---|
1871 | glMatrixMode(GL_PROJECTION);
|
---|
1872 | glPopMatrix();
|
---|
1873 |
|
---|
1874 | glMatrixMode(GL_MODELVIEW);
|
---|
1875 | glPopMatrix();
|
---|
1876 |
|
---|
1877 | glEnable(GL_LIGHTING);
|
---|
1878 | glEnable(GL_DEPTH_TEST);
|
---|
1879 | }
|
---|
1880 |
|
---|
1881 |
|
---|
1882 | // displays the visualisation of culling algorithm
|
---|
1883 | void DisplayVisualization()
|
---|
1884 | {
|
---|
1885 | visualization->SetFrameId(traverser->GetCurrentFrameId());
|
---|
1886 |
|
---|
1887 | Begin2D();
|
---|
1888 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
---|
1889 | glEnable(GL_BLEND);
|
---|
1890 | glColor4f(0.0f ,0.0f, 0.0f, 0.5f);
|
---|
1891 |
|
---|
1892 | glRecti(winWidth - winWidth / 3, winHeight - winHeight / 3, winWidth, winHeight);
|
---|
1893 | glDisable(GL_BLEND);
|
---|
1894 | End2D();
|
---|
1895 |
|
---|
1896 |
|
---|
1897 | AxisAlignedBox3 box = bvh->GetBox();
|
---|
1898 |
|
---|
1899 | const float offs = box.Size().x * 0.3f;
|
---|
1900 |
|
---|
1901 | Vector3 vizpos = Vector3(box.Min().x, box.Min().y - box.Size().y * 0.35f, box.Min().z + box.Size().z * 50);
|
---|
1902 |
|
---|
1903 | visCamera->SetPosition(vizpos);
|
---|
1904 | visCamera->ResetPitchAndYaw();
|
---|
1905 |
|
---|
1906 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
1907 | glViewport(winWidth - winWidth / 3, winHeight - winHeight / 3, winWidth / 3, winHeight / 3);
|
---|
1908 |
|
---|
1909 | glMatrixMode(GL_PROJECTION);
|
---|
1910 | glPushMatrix();
|
---|
1911 |
|
---|
1912 | glLoadIdentity();
|
---|
1913 | glOrtho(-offs, offs, -offs, offs, 0.0f, box.Size().z * 100.0f);
|
---|
1914 |
|
---|
1915 | glMatrixMode(GL_MODELVIEW);
|
---|
1916 | glPushMatrix();
|
---|
1917 |
|
---|
1918 | visCamera->SetupCameraView();
|
---|
1919 |
|
---|
1920 | Matrix4x4 rotZ = RotationZMatrix(-camera->GetPitch());
|
---|
1921 | glMultMatrixf((float *)rotZ.x);
|
---|
1922 |
|
---|
1923 | // inverse translation in order to fix current position
|
---|
1924 | Vector3 pos = camera->GetPosition();
|
---|
1925 | glTranslatef(-pos.x, -pos.y, -pos.z);
|
---|
1926 |
|
---|
1927 |
|
---|
1928 | GLfloat position[] = {0.8f, 1.0f, 1.5f, 0.0f};
|
---|
1929 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
1930 |
|
---|
1931 | GLfloat position1[] = {bvh->GetBox().Center().x, bvh->GetBox().Max().y, bvh->GetBox().Center().z, 1.0f};
|
---|
1932 | glLightfv(GL_LIGHT1, GL_POSITION, position1);
|
---|
1933 |
|
---|
1934 | glClear(GL_DEPTH_BUFFER_BIT);
|
---|
1935 |
|
---|
1936 |
|
---|
1937 | ////////////
|
---|
1938 | //-- visualization of the occlusion culling
|
---|
1939 |
|
---|
1940 | visualization->Render(showShadowMap);
|
---|
1941 |
|
---|
1942 |
|
---|
1943 | // reset previous settings
|
---|
1944 | glPopAttrib();
|
---|
1945 |
|
---|
1946 | glMatrixMode(GL_PROJECTION);
|
---|
1947 | glPopMatrix();
|
---|
1948 | glMatrixMode(GL_MODELVIEW);
|
---|
1949 | glPopMatrix();
|
---|
1950 | }
|
---|
1951 |
|
---|
1952 |
|
---|
1953 | // cleanup routine after the main loop
|
---|
1954 | void CleanUp()
|
---|
1955 | {
|
---|
1956 | DEL_PTR(traverser);
|
---|
1957 | DEL_PTR(sceneQuery);
|
---|
1958 | DEL_PTR(bvh);
|
---|
1959 | DEL_PTR(visualization);
|
---|
1960 | DEL_PTR(camera);
|
---|
1961 | DEL_PTR(renderQueue);
|
---|
1962 | DEL_PTR(perfGraph);
|
---|
1963 | DEL_PTR(fbo);
|
---|
1964 | DEL_PTR(deferredShader);
|
---|
1965 | DEL_PTR(light);
|
---|
1966 | DEL_PTR(visCamera);
|
---|
1967 | DEL_PTR(preetham);
|
---|
1968 | DEL_PTR(shadowMap);
|
---|
1969 | DEL_PTR(shadowTraverser);
|
---|
1970 | DEL_PTR(motionPath);
|
---|
1971 | DEL_PTR(walkThroughRecorder);
|
---|
1972 | DEL_PTR(walkThroughPlayer);
|
---|
1973 |
|
---|
1974 | ResourceManager::DelSingleton();
|
---|
1975 | ShaderManager::DelSingleton();
|
---|
1976 |
|
---|
1977 | resourceManager = NULL;
|
---|
1978 | shaderManager = NULL;
|
---|
1979 | }
|
---|
1980 |
|
---|
1981 |
|
---|
1982 | // this function inserts a dezimal point after each 1000
|
---|
1983 | void CalcDecimalPoint(string &str, int d, int len)
|
---|
1984 | {
|
---|
1985 | static vector<int> numbers;
|
---|
1986 | numbers.clear();
|
---|
1987 |
|
---|
1988 | static string shortStr;
|
---|
1989 | shortStr.clear();
|
---|
1990 |
|
---|
1991 | static char hstr[100];
|
---|
1992 |
|
---|
1993 | while (d != 0)
|
---|
1994 | {
|
---|
1995 | numbers.push_back(d % 1000);
|
---|
1996 | d /= 1000;
|
---|
1997 | }
|
---|
1998 |
|
---|
1999 | // first element without leading zeros
|
---|
2000 | if (numbers.size() > 0)
|
---|
2001 | {
|
---|
2002 | sprintf(hstr, "%d", numbers.back());
|
---|
2003 | shortStr.append(hstr);
|
---|
2004 | }
|
---|
2005 |
|
---|
2006 | for (int i = (int)numbers.size() - 2; i >= 0; i--)
|
---|
2007 | {
|
---|
2008 | sprintf(hstr, ",%03d", numbers[i]);
|
---|
2009 | shortStr.append(hstr);
|
---|
2010 | }
|
---|
2011 |
|
---|
2012 | int dif = len - (int)shortStr.size();
|
---|
2013 |
|
---|
2014 | for (int i = 0; i < dif; ++ i)
|
---|
2015 | {
|
---|
2016 | str += " ";
|
---|
2017 | }
|
---|
2018 |
|
---|
2019 | str.append(shortStr);
|
---|
2020 | }
|
---|
2021 |
|
---|
2022 |
|
---|
2023 | void DisplayStats()
|
---|
2024 | {
|
---|
2025 | static char msg[9][300];
|
---|
2026 |
|
---|
2027 | static double frameTime = elapsedTime;
|
---|
2028 | static double renderTime = algTime;
|
---|
2029 |
|
---|
2030 | const float expFactor = 0.1f;
|
---|
2031 |
|
---|
2032 | // if some strange render time spike happened in this frame => don't count
|
---|
2033 | if (elapsedTime < 500) frameTime = elapsedTime * expFactor + (1.0f - expFactor) * elapsedTime;
|
---|
2034 |
|
---|
2035 | static float rTime = 1000.0f;
|
---|
2036 |
|
---|
2037 | if (showAlgorithmTime)
|
---|
2038 | {
|
---|
2039 | if (algTime < 500) renderTime = algTime * expFactor + (1.0f - expFactor) * renderTime;
|
---|
2040 | }
|
---|
2041 |
|
---|
2042 | accumulatedTime += elapsedTime;
|
---|
2043 |
|
---|
2044 | if (accumulatedTime > 500) // update every fraction of a second
|
---|
2045 | {
|
---|
2046 | accumulatedTime = 0;
|
---|
2047 |
|
---|
2048 | if (frameTime) fps = 1e3f / (float)frameTime;
|
---|
2049 |
|
---|
2050 | rTime = renderTime;
|
---|
2051 |
|
---|
2052 | if (renderLightView && shadowTraverser)
|
---|
2053 | {
|
---|
2054 | renderedTriangles = shadowTraverser->GetStats().mNumRenderedTriangles;
|
---|
2055 | renderedObjects = shadowTraverser->GetStats().mNumRenderedGeometry;
|
---|
2056 | renderedNodes = shadowTraverser->GetStats().mNumRenderedNodes;
|
---|
2057 | }
|
---|
2058 | else if (showShadowMap && shadowTraverser)
|
---|
2059 | {
|
---|
2060 | renderedNodes = traverser->GetStats().mNumRenderedNodes + shadowTraverser->GetStats().mNumRenderedNodes;
|
---|
2061 | renderedObjects = traverser->GetStats().mNumRenderedGeometry + shadowTraverser->GetStats().mNumRenderedGeometry;
|
---|
2062 | renderedTriangles = traverser->GetStats().mNumRenderedTriangles + shadowTraverser->GetStats().mNumRenderedTriangles;
|
---|
2063 | }
|
---|
2064 | else
|
---|
2065 | {
|
---|
2066 | renderedTriangles = traverser->GetStats().mNumRenderedTriangles;
|
---|
2067 | renderedObjects = traverser->GetStats().mNumRenderedGeometry;
|
---|
2068 | renderedNodes = traverser->GetStats().mNumRenderedNodes;
|
---|
2069 | }
|
---|
2070 |
|
---|
2071 | traversedNodes = traverser->GetStats().mNumTraversedNodes;
|
---|
2072 | frustumCulledNodes = traverser->GetStats().mNumFrustumCulledNodes;
|
---|
2073 | queryCulledNodes = traverser->GetStats().mNumQueryCulledNodes;
|
---|
2074 | issuedQueries = traverser->GetStats().mNumIssuedQueries;
|
---|
2075 | stateChanges = traverser->GetStats().mNumStateChanges;
|
---|
2076 | numBatches = traverser->GetStats().mNumBatches;
|
---|
2077 | }
|
---|
2078 |
|
---|
2079 |
|
---|
2080 | Begin2D();
|
---|
2081 |
|
---|
2082 | glEnable(GL_BLEND);
|
---|
2083 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
---|
2084 |
|
---|
2085 | if (showHelp)
|
---|
2086 | {
|
---|
2087 | DrawHelpMessage();
|
---|
2088 | }
|
---|
2089 | else
|
---|
2090 | {
|
---|
2091 | if (showOptions)
|
---|
2092 | {
|
---|
2093 | glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
|
---|
2094 | glRecti(5, winHeight - 95, winWidth * 2 / 3 - 5, winHeight - 5);
|
---|
2095 | }
|
---|
2096 |
|
---|
2097 | if (showStatistics)
|
---|
2098 | {
|
---|
2099 | glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
|
---|
2100 | glRecti(5, winHeight - 165, winWidth * 2 / 3 - 5, winHeight - 100);
|
---|
2101 | }
|
---|
2102 |
|
---|
2103 | glEnable(GL_TEXTURE_2D);
|
---|
2104 | myfont.Begin();
|
---|
2105 |
|
---|
2106 | if (showOptions)
|
---|
2107 | {
|
---|
2108 | glColor3f(0.0f, 1.0f, 0.0f);
|
---|
2109 | int i = 0;
|
---|
2110 |
|
---|
2111 | static char *renderMethodStr[] =
|
---|
2112 | {"forward", "depth pass + forward", "deferred shading", "depth pass + deferred"};
|
---|
2113 | sprintf(msg[i ++], "multiqueries: %d, tight bounds: %d, render queue: %d",
|
---|
2114 | useMultiQueries, useTightBounds, useRenderQueue);
|
---|
2115 | sprintf(msg[i ++], "render technique: %s, SSAO: %d", renderMethodStr[renderMethod], useAdvancedShading);
|
---|
2116 | sprintf(msg[i ++], "triangles per virtual leaf: %5d", trianglesPerVirtualLeaf);
|
---|
2117 | sprintf(msg[i ++], "assumed visible frames: %4d, max batch size: %4d",
|
---|
2118 | assumedVisibleFrames, maxBatchSize);
|
---|
2119 |
|
---|
2120 | for (int j = 0; j < 4; ++ j)
|
---|
2121 | myfont.DrawString(msg[j], 10.0f, winHeight - 5 - j * 20);
|
---|
2122 | }
|
---|
2123 |
|
---|
2124 | if (showStatistics)
|
---|
2125 | {
|
---|
2126 | glColor3f(1.0f, 1.0f, 0.0f);
|
---|
2127 |
|
---|
2128 | string objStr, totalObjStr;
|
---|
2129 | string triStr, totalTriStr;
|
---|
2130 |
|
---|
2131 | int len = 10;
|
---|
2132 | CalcDecimalPoint(objStr, renderedObjects, len);
|
---|
2133 | CalcDecimalPoint(totalObjStr, (int)resourceManager->GetNumEntities(), len);
|
---|
2134 |
|
---|
2135 | CalcDecimalPoint(triStr, renderedTriangles, len);
|
---|
2136 | CalcDecimalPoint(totalTriStr, bvh->GetBvhStats().mTriangles, len);
|
---|
2137 |
|
---|
2138 | int i = 4;
|
---|
2139 |
|
---|
2140 | if (0)
|
---|
2141 | {
|
---|
2142 | sprintf(msg[i ++], "rendered: %s of %s objects, %s of %s triangles",
|
---|
2143 | objStr.c_str(), totalObjStr.c_str(), triStr.c_str(), totalTriStr.c_str());
|
---|
2144 | }
|
---|
2145 | else
|
---|
2146 | {
|
---|
2147 | sprintf(msg[i ++], "rendered: %6d of %6d nodes, %s of %s triangles",
|
---|
2148 | renderedNodes, bvh->GetNumVirtualNodes(), triStr.c_str(), totalTriStr.c_str());
|
---|
2149 | }
|
---|
2150 |
|
---|
2151 | sprintf(msg[i ++], "traversed: %5d, frustum culled: %5d, query culled: %5d",
|
---|
2152 | traversedNodes, frustumCulledNodes, queryCulledNodes);
|
---|
2153 | sprintf(msg[i ++], "issued queries: %5d, renderState changes: %5d, render batches: %5d",
|
---|
2154 | issuedQueries, stateChanges, numBatches);
|
---|
2155 |
|
---|
2156 | for (int j = 4; j < 7; ++ j)
|
---|
2157 | myfont.DrawString(msg[j], 10.0f, winHeight - (j + 1) * 20);
|
---|
2158 | }
|
---|
2159 |
|
---|
2160 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
2161 | static char *alg_str[] = {"Frustum Cull", "Stop and Wait", "CHC", "CHC ++"};
|
---|
2162 |
|
---|
2163 | if (!showAlgorithmTime)
|
---|
2164 | sprintf(msg[7], "%s: %6.1f fps", alg_str[renderMode], fps);
|
---|
2165 | else
|
---|
2166 | sprintf(msg[7], "%s: %6.1f ms", alg_str[renderMode], rTime);
|
---|
2167 |
|
---|
2168 | myfont.DrawString(msg[7], 1.3f, 690.0f, 760.0f);//, top_color, bottom_color);
|
---|
2169 |
|
---|
2170 | //sprintf(msg[8], "algorithm time: %6.1f ms", rTime);
|
---|
2171 | //myfont.DrawString(msg[8], 720.0f, 730.0f);
|
---|
2172 | }
|
---|
2173 |
|
---|
2174 | glDisable(GL_BLEND);
|
---|
2175 | glDisable(GL_TEXTURE_2D);
|
---|
2176 |
|
---|
2177 | End2D();
|
---|
2178 | }
|
---|
2179 |
|
---|
2180 |
|
---|
2181 | void RenderSky()
|
---|
2182 | {
|
---|
2183 | if ((renderMethod == RENDER_DEFERRED) || (renderMethod == RENDER_DEPTH_PASS_DEFERRED))
|
---|
2184 | renderState.SetRenderTechnique(DEFERRED);
|
---|
2185 |
|
---|
2186 | const bool useToneMapping =
|
---|
2187 | ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) ||
|
---|
2188 | (renderMethod == RENDER_DEFERRED)) && useHDR;
|
---|
2189 |
|
---|
2190 | preetham->RenderSkyDome(-light->GetDirection(), camera, &renderState, !useToneMapping);
|
---|
2191 |
|
---|
2192 | /// once again reset the renderState just to make sure
|
---|
2193 | renderState.Reset();
|
---|
2194 | }
|
---|
2195 |
|
---|
2196 |
|
---|
2197 | // render visible object from depth pass
|
---|
2198 | void RenderVisibleObjects()
|
---|
2199 | {
|
---|
2200 | if (renderMethod == RENDER_DEPTH_PASS_DEFERRED)
|
---|
2201 | {
|
---|
2202 | if (showShadowMap && !renderLightView)
|
---|
2203 | {
|
---|
2204 | // usethe maximal visible distance to focus shadow map
|
---|
2205 | float maxVisibleDist = min(camera->GetFar(), traverser->GetMaxVisibleDistance());
|
---|
2206 | RenderShadowMap(maxVisibleDist);
|
---|
2207 | }
|
---|
2208 | // initialize deferred rendering
|
---|
2209 | InitDeferredRendering();
|
---|
2210 | }
|
---|
2211 | else
|
---|
2212 | {
|
---|
2213 | renderState.SetRenderTechnique(FORWARD);
|
---|
2214 | }
|
---|
2215 |
|
---|
2216 |
|
---|
2217 | /////////////////
|
---|
2218 | //-- reset gl renderState before the final visible objects pass
|
---|
2219 |
|
---|
2220 | renderState.Reset();
|
---|
2221 |
|
---|
2222 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
2223 | /// switch back to smooth shading
|
---|
2224 | glShadeModel(GL_SMOOTH);
|
---|
2225 | /// reset alpha to coverage flag
|
---|
2226 | renderState.SetUseAlphaToCoverage(true);
|
---|
2227 | // clear color
|
---|
2228 | glClear(GL_COLOR_BUFFER_BIT);
|
---|
2229 |
|
---|
2230 | // draw only objects having exactly the same depth as the current sample
|
---|
2231 | glDepthFunc(GL_EQUAL);
|
---|
2232 |
|
---|
2233 | //cout << "visible: " << (int)traverser->GetVisibleObjects().size() << endl;
|
---|
2234 |
|
---|
2235 | SceneEntityContainer::const_iterator sit,
|
---|
2236 | sit_end = traverser->GetVisibleObjects().end();
|
---|
2237 |
|
---|
2238 | for (sit = traverser->GetVisibleObjects().begin(); sit != sit_end; ++ sit)
|
---|
2239 | {
|
---|
2240 | renderQueue->Enqueue(*sit);
|
---|
2241 | }
|
---|
2242 | /// now render out everything in one giant pass
|
---|
2243 | renderQueue->Apply();
|
---|
2244 |
|
---|
2245 | // switch back to standard depth func
|
---|
2246 | glDepthFunc(GL_LESS);
|
---|
2247 | renderState.Reset();
|
---|
2248 |
|
---|
2249 | PrintGLerror("visibleobjects");
|
---|
2250 | }
|
---|
2251 |
|
---|
2252 |
|
---|
2253 | SceneQuery *GetOrCreateSceneQuery()
|
---|
2254 | {
|
---|
2255 | if (!sceneQuery)
|
---|
2256 | sceneQuery = new SceneQuery(bvh->GetBox(), traverser, &renderState);
|
---|
2257 |
|
---|
2258 | return sceneQuery;
|
---|
2259 | }
|
---|
2260 |
|
---|
2261 |
|
---|
2262 | void PlaceViewer(const Vector3 &oldPos)
|
---|
2263 | {
|
---|
2264 | Vector3 playerPos = camera->GetPosition();
|
---|
2265 | bool validIntersect = GetOrCreateSceneQuery()->CalcIntersection(playerPos);
|
---|
2266 |
|
---|
2267 | if (validIntersect)
|
---|
2268 | // && ((playerPos.z - oldPos.z) < bvh->GetBox().Size(2) * 1e-1f))
|
---|
2269 | {
|
---|
2270 | camera->SetPosition(playerPos);
|
---|
2271 | }
|
---|
2272 | }
|
---|
2273 |
|
---|
2274 |
|
---|
2275 | void RenderShadowMap(float newfar)
|
---|
2276 | {
|
---|
2277 | glDisableClientState(GL_NORMAL_ARRAY);
|
---|
2278 | renderState.SetRenderTechnique(DEPTH_PASS);
|
---|
2279 |
|
---|
2280 | // hack: disable cull face because of alpha textured balconies
|
---|
2281 | glDisable(GL_CULL_FACE);
|
---|
2282 | renderState.LockCullFaceEnabled(true);
|
---|
2283 |
|
---|
2284 | /// don't use alpha to coverage for the depth map (problems with fbo rendering)
|
---|
2285 | renderState.SetUseAlphaToCoverage(false);
|
---|
2286 |
|
---|
2287 | // change CHC++ set of renderState variables
|
---|
2288 | // this must be done for each change of camera because
|
---|
2289 | // otherwise the temporal coherency is broken
|
---|
2290 | BvhNode::SetCurrentState(LIGHT_PASS);
|
---|
2291 | // hack: temporarily change camera far plane
|
---|
2292 | camera->SetFar(newfar);
|
---|
2293 | // the scene is rendered withouth any shading
|
---|
2294 | shadowMap->ComputeShadowMap(shadowTraverser, viewProjMat);
|
---|
2295 |
|
---|
2296 | camera->SetFar(farDist);
|
---|
2297 |
|
---|
2298 | renderState.SetUseAlphaToCoverage(true);
|
---|
2299 | renderState.LockCullFaceEnabled(false);
|
---|
2300 | glEnable(GL_CULL_FACE);
|
---|
2301 |
|
---|
2302 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
2303 | // change back renderState
|
---|
2304 | BvhNode::SetCurrentState(CAMERA_PASS);
|
---|
2305 | }
|
---|
2306 |
|
---|
2307 |
|
---|
2308 | /** Touch each material once in order to preload the render queue
|
---|
2309 | bucket id of each material
|
---|
2310 | */
|
---|
2311 | void PrepareRenderQueue()
|
---|
2312 | {
|
---|
2313 | for (int i = 0; i < 3; ++ i)
|
---|
2314 | {
|
---|
2315 | renderState.SetRenderTechnique(i);
|
---|
2316 |
|
---|
2317 | // fill all shapes into the render queue once so we can establish the buckets
|
---|
2318 | ShapeContainer::const_iterator sit, sit_end = (*resourceManager->GetShapes()).end();
|
---|
2319 |
|
---|
2320 | for (sit = (*resourceManager->GetShapes()).begin(); sit != sit_end; ++ sit)
|
---|
2321 | {
|
---|
2322 | static Transform3 dummy(IdentityMatrix());
|
---|
2323 | renderQueue->Enqueue(*sit, NULL);
|
---|
2324 | }
|
---|
2325 |
|
---|
2326 | // just clear queue again
|
---|
2327 | renderQueue->Clear();
|
---|
2328 | }
|
---|
2329 | }
|
---|
2330 |
|
---|
2331 |
|
---|
2332 | void LoadModel(const string &model, SceneEntityContainer &entities)
|
---|
2333 | {
|
---|
2334 | const string filename = string(model_path + model);
|
---|
2335 |
|
---|
2336 | cout << "\nloading model " << filename << endl;
|
---|
2337 | if (resourceManager->Load(filename, entities))
|
---|
2338 | cout << "model " << filename << " successfully loaded" << endl;
|
---|
2339 | else
|
---|
2340 | {
|
---|
2341 | cerr << "loading model " << filename << " failed" << endl;
|
---|
2342 | CleanUp();
|
---|
2343 | exit(0);
|
---|
2344 | }
|
---|
2345 | }
|
---|
2346 |
|
---|
2347 |
|
---|
2348 | void CreateAnimation()
|
---|
2349 | {
|
---|
2350 | const float radius = 5.0f;
|
---|
2351 | const Vector3 center(480.398f, 268.364f, 181.3);
|
---|
2352 |
|
---|
2353 | VertexArray vertices;
|
---|
2354 |
|
---|
2355 | /*for (int i = 0; i < 360; ++ i)
|
---|
2356 | {
|
---|
2357 | float angle = (float)i * M_PI / 180.0f;
|
---|
2358 |
|
---|
2359 | Vector3 offs = Vector3(cos(angle) * radius, sin(angle) * radius, 0);
|
---|
2360 | vertices.push_back(center + offs);
|
---|
2361 | }*/
|
---|
2362 |
|
---|
2363 | for (int i = 0; i < 5; ++ i)
|
---|
2364 | {
|
---|
2365 | Vector3 offs = Vector3(i, 0, 0);
|
---|
2366 | vertices.push_back(center + offs);
|
---|
2367 | }
|
---|
2368 |
|
---|
2369 |
|
---|
2370 | for (int i = 0; i < 5; ++ i)
|
---|
2371 | {
|
---|
2372 | Vector3 offs = Vector3(4 -i, 0, 0);
|
---|
2373 | vertices.push_back(center + offs);
|
---|
2374 | }
|
---|
2375 |
|
---|
2376 | motionPath = new MotionPath(vertices);
|
---|
2377 | }
|
---|
2378 |
|
---|
2379 | /** This function returns the number of visible pixels of a
|
---|
2380 | bounding box representing the sun.
|
---|
2381 | */
|
---|
2382 | int TestSunVisible()
|
---|
2383 | {
|
---|
2384 | // assume sun is at a far away point along the light vector
|
---|
2385 | Vector3 sunPos = light->GetDirection() * -1e3f;
|
---|
2386 | sunPos += camera->GetPosition();
|
---|
2387 |
|
---|
2388 | sunBox->GetTransform()->SetMatrix(TranslationMatrix(sunPos));
|
---|
2389 |
|
---|
2390 | glBeginQueryARB(GL_SAMPLES_PASSED_ARB, sunQuery);
|
---|
2391 |
|
---|
2392 | sunBox->Render(&renderState);
|
---|
2393 |
|
---|
2394 | glEndQueryARB(GL_SAMPLES_PASSED_ARB);
|
---|
2395 |
|
---|
2396 | GLuint sampleCount;
|
---|
2397 |
|
---|
2398 | glGetQueryObjectuivARB(sunQuery, GL_QUERY_RESULT_ARB, &sampleCount);
|
---|
2399 |
|
---|
2400 | return sampleCount;
|
---|
2401 | }
|
---|