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