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 "ObjConverter.h"
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53 | #include "SkyPreetham.h"
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54 | #include "Texture.h"
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55 | #include "ShaderManager.h"
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56 | #include "MotionPath.h"
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57 |
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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 | SceneEntityContainer dynamicObjects;
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74 | // traverses and renders the hierarchy
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75 | RenderTraverser *traverser = NULL;
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76 | /// the hierarchy
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77 | Bvh *bvh = NULL;
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78 | /// handles scene loading
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79 | ResourceManager *resourceManager = NULL;
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80 | /// handles scene loading
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81 | ShaderManager *shaderManager = NULL;
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82 | /// the scene camera
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83 | PerspectiveCamera *camera = NULL;
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84 | /// the scene camera
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85 | PerspectiveCamera *visCamera = NULL;
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86 | /// the visualization
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87 | Visualization *visualization = NULL;
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88 | /// the current render state
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89 | RenderState state;
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90 | /// the rendering algorithm
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91 | int renderMode = RenderTraverser::CHCPLUSPLUS;
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92 | /// eye near plane distance
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93 | const float nearDist = 0.2f;
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94 | /// eye far plane distance
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95 | float farDist = 1e6f;
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96 | /// the field of view
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97 | const float fov = 50.0f;
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98 |
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99 | SceneQuery *sceneQuery = NULL;
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100 | RenderQueue *renderQueue = NULL;
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101 | /// traverses and renders the hierarchy
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102 | RenderTraverser *shadowTraverser = NULL;
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103 | /// the skylight + skydome model
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104 | SkyPreetham *preetham = NULL;
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105 |
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106 | MotionPath *motionPath = NULL;
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107 |
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108 |
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109 | /// the technique used for rendering
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110 | enum RenderTechnique
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111 | {
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112 | FORWARD,
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113 | DEFERRED,
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114 | DEPTH_PASS
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115 | };
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116 |
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117 |
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118 | /// the used render type for this render pass
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119 | enum RenderMethod
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120 | {
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121 | RENDER_FORWARD,
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122 | RENDER_DEPTH_PASS,
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123 | RENDER_DEFERRED,
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124 | RENDER_DEPTH_PASS_DEFERRED,
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125 | RENDER_NUM_RENDER_TYPES
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126 | };
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127 |
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128 | /// one of four possible render methods
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129 | int renderMethod = RENDER_FORWARD;
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130 |
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131 | static int winWidth = 1024;
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132 | static int winHeight = 768;
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133 | static float winAspectRatio = 1.0f;
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134 |
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135 | /// these values get scaled with the frame rate
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136 | static float keyForwardMotion = 30.0f;
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137 | static float keyRotation = 1.5f;
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138 |
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139 | /// elapsed time in milliseconds
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140 | double elapsedTime = 1000.0;
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141 | double algTime = 1000.0;
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142 | double accumulatedTime = 1000.0;
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143 | float fps = 1e3f;
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144 |
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145 | int shadowSize = 2048;
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146 | /// the hud font
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147 | glfont::GLFont myfont;
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148 |
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149 | // rendertexture
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150 | static int texWidth = 1024;
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151 | static int texHeight = 768;
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152 |
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153 | int renderedObjects = 0;
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154 | int renderedNodes = 0;
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155 | int renderedTriangles = 0;
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156 |
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157 | int issuedQueries = 0;
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158 | int traversedNodes = 0;
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159 | int frustumCulledNodes = 0;
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160 | int queryCulledNodes = 0;
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161 | int stateChanges = 0;
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162 | int numBatches = 0;
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163 |
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164 | // mouse navigation state
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165 | int xEyeBegin = 0;
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166 | int yEyeBegin = 0;
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167 | int yMotionBegin = 0;
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168 | int verticalMotionBegin = 0;
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169 | int horizontalMotionBegin = 0;
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170 |
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171 | bool leftKeyPressed = false;
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172 | bool rightKeyPressed = false;
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173 | bool upKeyPressed = false;
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174 | bool downKeyPressed = false;
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175 | bool descendKeyPressed = false;
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176 | bool ascendKeyPressed = false;
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177 | bool altKeyPressed = false;
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178 |
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179 | bool showHelp = false;
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180 | bool showStatistics = false;
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181 | bool showOptions = true;
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182 | bool showBoundingVolumes = false;
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183 | bool visMode = false;
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184 |
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185 | bool useOptimization = false;
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186 | bool useTightBounds = true;
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187 | bool useRenderQueue = true;
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188 | bool useMultiQueries = true;
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189 | bool flyMode = true;
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190 |
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191 | bool useGlobIllum = false;
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192 | bool useTemporalCoherence = true;
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193 | bool showAlgorithmTime = false;
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194 |
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195 | bool useFullScreen = false;
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196 | bool useLODs = true;
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197 | bool moveLight = false;
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198 |
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199 | bool useAdvancedShading = false;
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200 | bool showShadowMap = false;
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201 | bool renderLightView = false;
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202 | bool useHDR = true;
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203 |
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204 | PerfTimer frameTimer, algTimer;
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205 | /// the performance window
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206 | PerformanceGraph *perfGraph = NULL;
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207 |
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208 | static float ssaoTempCohFactor = 255.0;
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209 | static int sCurrentMrtSet = 0;
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210 |
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211 |
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212 | //////////////
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213 | //-- algorithm parameters
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214 |
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215 | /// the pixel threshold where a node is still considered invisible
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216 | /// (should be zero for conservative visibility)
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217 | int threshold;
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218 | int assumedVisibleFrames = 10;
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219 | int maxBatchSize = 50;
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220 | int trianglesPerVirtualLeaf = INITIAL_TRIANGLES_PER_VIRTUAL_LEAVES;
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221 |
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222 | //////////////
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223 |
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224 | enum {CAMERA_PASS = 0, LIGHT_PASS = 1};
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225 |
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226 |
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227 |
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228 | //DeferredRenderer::SAMPLING_METHOD samplingMethod = DeferredRenderer::SAMPLING_POISSON;
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229 | DeferredRenderer::SAMPLING_METHOD samplingMethod = DeferredRenderer::SAMPLING_QUADRATIC;
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230 |
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231 | ShadowMap *shadowMap = NULL;
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232 | DirectionalLight *light = NULL;
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233 | DeferredRenderer *ssaoShader = NULL;
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234 |
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235 | //SceneEntity *cube = NULL;
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236 | SceneEntity *buddha = NULL;
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237 | SceneEntity *skyDome = NULL;
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238 |
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239 |
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240 | ////////////////////
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241 | //--- function forward declarations
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242 |
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243 | void InitExtensions();
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244 | void InitGLstate();
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245 |
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246 | void DisplayVisualization();
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247 | /// destroys all allocated resources
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248 | void CleanUp();
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249 | void SetupEyeView();
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250 | void SetupLighting();
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251 | void DisplayStats();
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252 | /// draw the help screen
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253 | void DrawHelpMessage();
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254 | /// render the sky dome
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255 | void RenderSky();
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256 | /// render the objects found visible in the depth pass
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257 | void RenderVisibleObjects();
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258 |
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259 | void Begin2D();
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260 | void End2D();
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261 | /// the main loop
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262 | void MainLoop();
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263 |
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264 | void KeyBoard(unsigned char c, int x, int y);
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265 | void Special(int c, int x, int y);
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266 | void KeyUp(unsigned char c, int x, int y);
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267 | void SpecialKeyUp(int c, int x, int y);
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268 | void Reshape(int w, int h);
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269 | void Mouse(int button, int state, int x, int y);
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270 | void LeftMotion(int x, int y);
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271 | void RightMotion(int x, int y);
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272 | void MiddleMotion(int x, int y);
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273 | void KeyHorizontalMotion(float shift);
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274 | void KeyVerticalMotion(float shift);
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275 | /// returns the string representation of a number with the decimal points
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276 | void CalcDecimalPoint(string &str, int d);
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277 | /// Creates the traversal method (vfc, stopandwait, chc, chc++)
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278 | RenderTraverser *CreateTraverser(PerspectiveCamera *cam);
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279 | /// place the viewer on the floor plane
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280 | void PlaceViewer(const Vector3 &oldPos);
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281 | // initialise the frame buffer objects
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282 | void InitFBO();
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283 | /// changes the sunlight direction
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284 | void RightMotionLight(int x, int y);
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285 | /// render the shader map
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286 | void RenderShadowMap(float newfar);
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287 | /// function that touches each material once in order to accelarate render queue
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288 | void PrepareRenderQueue();
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289 | /// loads the specified model
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290 | void LoadModel(const string &model, SceneEntityContainer &entities);
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291 |
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292 | inline float KeyRotationAngle() { return keyRotation * elapsedTime * 1e-3f; }
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293 | inline float KeyShift() { return keyForwardMotion * elapsedTime * 1e-3f; }
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294 |
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295 | void CreateAnimation();
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296 |
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297 |
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298 | // the new and the old viewProjection matrix of the current camera
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299 | static Matrix4x4 viewProjMat = IdentityMatrix();
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300 | static Matrix4x4 oldViewProjMat = IdentityMatrix();
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301 |
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302 |
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303 |
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304 | static void PrintGLerror(char *msg)
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305 | {
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306 | GLenum errCode;
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307 | const GLubyte *errStr;
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308 |
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309 | if ((errCode = glGetError()) != GL_NO_ERROR)
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310 | {
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311 | errStr = gluErrorString(errCode);
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312 | fprintf(stderr,"OpenGL ERROR: %s: %s\n", errStr, msg);
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313 | }
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314 | }
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315 |
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316 |
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317 | int main(int argc, char* argv[])
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318 | {
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319 | #ifdef _CRT_SET
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320 | //Now just call this function at the start of your program and if you're
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321 | //compiling in debug mode (F5), any leaks will be displayed in the Output
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322 | //window when the program shuts down. If you're not in debug mode this will
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323 | //be ignored. Use it as you will!
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324 | //note: from GDNet Direct [3.8.04 - 3.14.04] void detectMemoryLeaks() {
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325 |
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326 | _CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF|_CRTDBG_ALLOC_MEM_DF);
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327 | _CrtSetReportMode(_CRT_ASSERT,_CRTDBG_MODE_FILE);
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328 | _CrtSetReportFile(_CRT_ASSERT,_CRTDBG_FILE_STDERR);
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329 | #endif
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330 |
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331 | cout << "=== reading environment file ===" << endl << endl;
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332 |
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333 | int returnCode = 0;
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334 |
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335 | Vector3 camPos(.0f, .0f, .0f);
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336 | Vector3 camDir(.0f, 1.0f, .0f);
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337 | Vector3 lightDir(-0.8f, 1.0f, -0.7f);
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338 |
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339 | cout << "=== reading environment file ===" << endl << endl;
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340 |
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341 | const string envFileName = "default.env";
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342 | if (!env.Read(envFileName))
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343 | {
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344 | cerr << "loading environment " << envFileName << " failed!" << endl;
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345 | }
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346 | else
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347 | {
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348 | env.GetIntParam(string("assumedVisibleFrames"), assumedVisibleFrames);
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349 | env.GetIntParam(string("maxBatchSize"), maxBatchSize);
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350 | env.GetIntParam(string("trianglesPerVirtualLeaf"), trianglesPerVirtualLeaf);
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351 |
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352 | env.GetFloatParam(string("keyForwardMotion"), keyForwardMotion);
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353 | env.GetFloatParam(string("keyRotation"), keyRotation);
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354 |
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355 | env.GetIntParam(string("winWidth"), winWidth);
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356 | env.GetIntParam(string("winHeight"), winHeight);
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357 |
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358 | env.GetBoolParam(string("useFullScreen"), useFullScreen);
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359 | env.GetFloatParam(string("tempCohFactor"), ssaoTempCohFactor);
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360 | env.GetVectorParam(string("camPosition"), camPos);
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361 | env.GetVectorParam(string("camDirection"), camDir);
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362 | env.GetVectorParam(string("lightDirection"), lightDir);
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363 |
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364 | env.GetBoolParam(string("useLODs"), useLODs);
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365 | env.GetIntParam(string("shadowSize"), shadowSize);
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366 |
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367 | env.GetBoolParam(string("useHDR"), useHDR);
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368 |
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369 | //env.GetStringParam(string("modelPath"), model_path);
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370 | //env.GetIntParam(string("numSssaoSamples"), numSsaoSamples);
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371 |
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372 | cout << "assumedVisibleFrames: " << assumedVisibleFrames << endl;
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373 | cout << "maxBatchSize: " << maxBatchSize << endl;
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374 | cout << "trianglesPerVirtualLeaf: " << trianglesPerVirtualLeaf << endl;
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375 |
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376 | cout << "keyForwardMotion: " << keyForwardMotion << endl;
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377 | cout << "keyRotation: " << keyRotation << endl;
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378 | cout << "winWidth: " << winWidth << endl;
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379 | cout << "winHeight: " << winHeight << endl;
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380 | cout << "useFullScreen: " << useFullScreen << endl;
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381 | cout << "useLODs: " << useLODs << endl;
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382 | cout << "camPosition: " << camPos << endl;
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383 | cout << "temporal coherence: " << ssaoTempCohFactor << endl;
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384 | cout << "shadow size: " << shadowSize << endl;
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385 |
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386 | //cout << "model path: " << model_path << endl;
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387 | cout << "**** end parameters ****" << endl << endl;
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388 | }
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389 |
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390 | ///////////////////////////
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391 |
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392 | camera = new PerspectiveCamera(winWidth / winHeight, fov);
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393 | camera->SetNear(nearDist);
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394 | camera->SetFar(1000);
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395 |
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396 | camera->SetDirection(camDir);
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397 | camera->SetPosition(camPos);
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398 |
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399 | visCamera = new PerspectiveCamera(winWidth / winHeight, fov);
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400 | visCamera->SetNear(0.0f);
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401 | visCamera->Yaw(.5 * M_PI);
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402 |
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403 | // create a new light
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404 | light = new DirectionalLight(lightDir, RgbaColor(1, 1, 1, 1), RgbaColor(1, 1, 1, 1));
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405 | // the render queue for material sorting
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406 | renderQueue = new RenderQueue(&state);
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407 |
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408 | glutInitWindowSize(winWidth, winHeight);
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409 | glutInit(&argc, argv);
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410 | glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_MULTISAMPLE);
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411 | //glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
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412 | //glutInitDisplayString("samples=2");
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413 |
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414 | SceneEntity::SetUseLODs(useLODs);
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415 |
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416 | if (!useFullScreen)
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417 | {
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418 | glutCreateWindow("FriendlyCulling");
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419 | }
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420 | else
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421 | {
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422 | glutGameModeString( "1024x768:32@75" );
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423 | glutEnterGameMode();
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424 | }
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425 |
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426 | glutDisplayFunc(MainLoop);
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427 | glutKeyboardFunc(KeyBoard);
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428 | glutSpecialFunc(Special);
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429 | glutReshapeFunc(Reshape);
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430 | glutMouseFunc(Mouse);
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431 | glutIdleFunc(MainLoop);
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432 | glutKeyboardUpFunc(KeyUp);
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433 | glutSpecialUpFunc(SpecialKeyUp);
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434 | glutIgnoreKeyRepeat(true);
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435 |
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436 | // initialise gl graphics
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437 | InitExtensions();
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438 | InitGLstate();
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439 |
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440 | glEnable(GL_MULTISAMPLE_ARB);
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441 | glHint(GL_MULTISAMPLE_FILTER_HINT_NV, GL_NICEST);
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442 |
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443 | LeftMotion(0, 0);
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444 | MiddleMotion(0, 0);
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445 |
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446 | perfGraph = new PerformanceGraph(1000);
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447 |
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448 | resourceManager = ResourceManager::GetSingleton();
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449 | shaderManager = ShaderManager::GetSingleton();
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450 |
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451 | ///////////
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452 | //-- load the static scene geometry
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453 |
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454 | LoadModel("city.dem", sceneEntities);
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455 |
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456 |
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457 | //////////
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458 | //-- load some dynamic stuff
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459 |
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460 | LoadModel("hbuddha.dem", dynamicObjects);
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461 | buddha = dynamicObjects.back();
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462 |
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463 | const Vector3 sceneCenter(470.398f, 240.364f, 182.5f);
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464 | Matrix4x4 transl = TranslationMatrix(sceneCenter);
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465 | buddha->GetTransform()->SetMatrix(transl);
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466 |
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467 | for (int i = 0; i < 10; ++ i)
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468 | {
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469 | SceneEntity *ent = new SceneEntity(*buddha);
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470 | resourceManager->AddSceneEntity(ent);
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471 |
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472 | Vector3 offs = Vector3::ZERO();
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473 |
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474 | offs.x = RandomValue(.0f, 50.0f);
|
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475 | offs.y = RandomValue(.0f, 50.0f);
|
---|
476 |
|
---|
477 | transl = TranslationMatrix(sceneCenter + offs);
|
---|
478 | Transform3 *transform = resourceManager->CreateTransform(transl);
|
---|
479 |
|
---|
480 | ent->SetTransform(transform);
|
---|
481 | dynamicObjects.push_back(ent);
|
---|
482 | }
|
---|
483 |
|
---|
484 |
|
---|
485 | ///////////
|
---|
486 | //-- load the associated static bvh
|
---|
487 |
|
---|
488 | const string bvh_filename = string(model_path + "city.bvh");
|
---|
489 |
|
---|
490 | BvhLoader bvhLoader;
|
---|
491 | bvh = bvhLoader.Load(bvh_filename, sceneEntities, dynamicObjects);
|
---|
492 |
|
---|
493 | if (!bvh)
|
---|
494 | {
|
---|
495 | cerr << "loading bvh " << bvh_filename << " failed" << endl;
|
---|
496 | CleanUp();
|
---|
497 | exit(0);
|
---|
498 | }
|
---|
499 |
|
---|
500 | /// set the depth of the bvh depending on the triangles per leaf node
|
---|
501 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
502 |
|
---|
503 | // set far plane based on scene extent
|
---|
504 | farDist = 10.0f * Magnitude(bvh->GetBox().Diagonal());
|
---|
505 | camera->SetFar(farDist);
|
---|
506 |
|
---|
507 |
|
---|
508 | //////////////////
|
---|
509 | //-- setup the skydome model
|
---|
510 |
|
---|
511 | LoadModel("sky.dem", sceneEntities);
|
---|
512 | skyDome = sceneEntities.back();
|
---|
513 |
|
---|
514 | /// the turbitity of the sky (from clear to hazy, use <3 for clear sky)
|
---|
515 | const float turbitiy = 5.0f;
|
---|
516 | preetham = new SkyPreetham(turbitiy, skyDome);
|
---|
517 |
|
---|
518 | CreateAnimation();
|
---|
519 |
|
---|
520 |
|
---|
521 | //////////
|
---|
522 | //-- initialize the traversal algorithm
|
---|
523 |
|
---|
524 | traverser = CreateTraverser(camera);
|
---|
525 |
|
---|
526 | // the bird-eye visualization
|
---|
527 | visualization = new Visualization(bvh, camera, NULL, &state);
|
---|
528 |
|
---|
529 | // this function assign the render queue bucket ids of the materials in beforehand
|
---|
530 | // => probably a little less overhead for new parts of the scene that are not yet assigned
|
---|
531 | PrepareRenderQueue();
|
---|
532 | /// forward rendering is the default
|
---|
533 | state.SetRenderTechnique(FORWARD);
|
---|
534 | // frame time is restarted every frame
|
---|
535 | frameTimer.Start();
|
---|
536 |
|
---|
537 | // the rendering loop
|
---|
538 | glutMainLoop();
|
---|
539 |
|
---|
540 | // clean up
|
---|
541 | CleanUp();
|
---|
542 |
|
---|
543 | return 0;
|
---|
544 | }
|
---|
545 |
|
---|
546 |
|
---|
547 | void InitFBO()
|
---|
548 | {
|
---|
549 | PrintGLerror("fbo start");
|
---|
550 |
|
---|
551 | // this fbo basicly stores the scene information we get from standard rendering of a frame
|
---|
552 | // we store diffuse colors, eye space depth and normals
|
---|
553 | fbo = new FrameBufferObject(texWidth, texHeight, FrameBufferObject::DEPTH_32);
|
---|
554 | //fbo = new FrameBufferObject(texWidth, texHeight, FrameBufferObject::DEPTH_24);
|
---|
555 |
|
---|
556 | // the diffuse color buffer
|
---|
557 | fbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR, ColorBufferObject::FILTER_NEAREST);
|
---|
558 | // the normals buffer
|
---|
559 | fbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
|
---|
560 | // a rgb buffer which could hold material properties
|
---|
561 | fbo->AddColorBuffer(ColorBufferObject::RGB_UBYTE, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_NEAREST);
|
---|
562 | // another color buffer
|
---|
563 | fbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR, ColorBufferObject::FILTER_NEAREST);
|
---|
564 |
|
---|
565 | PrintGLerror("fbo");
|
---|
566 | }
|
---|
567 |
|
---|
568 |
|
---|
569 | bool InitFont(void)
|
---|
570 | {
|
---|
571 | glEnable(GL_TEXTURE_2D);
|
---|
572 |
|
---|
573 | glGenTextures(1, &fontTex);
|
---|
574 | glBindTexture(GL_TEXTURE_2D, fontTex);
|
---|
575 |
|
---|
576 | if (!myfont.Create("data/fonts/verdana.glf", fontTex))
|
---|
577 | return false;
|
---|
578 |
|
---|
579 | glDisable(GL_TEXTURE_2D);
|
---|
580 |
|
---|
581 | return true;
|
---|
582 | }
|
---|
583 |
|
---|
584 |
|
---|
585 | void InitGLstate()
|
---|
586 | {
|
---|
587 | glClearColor(0.4f, 0.4f, 0.4f, 1.0f);
|
---|
588 |
|
---|
589 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
---|
590 | glPixelStorei(GL_PACK_ALIGNMENT,1);
|
---|
591 |
|
---|
592 | glDepthFunc(GL_LESS);
|
---|
593 | glEnable(GL_DEPTH_TEST);
|
---|
594 |
|
---|
595 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
596 | glShadeModel(GL_SMOOTH);
|
---|
597 |
|
---|
598 | glMaterialf(GL_FRONT, GL_SHININESS, 64);
|
---|
599 | glEnable(GL_NORMALIZE);
|
---|
600 |
|
---|
601 | glDisable(GL_ALPHA_TEST);
|
---|
602 | glAlphaFunc(GL_GEQUAL, 0.5f);
|
---|
603 |
|
---|
604 | glFrontFace(GL_CCW);
|
---|
605 | glCullFace(GL_BACK);
|
---|
606 | glEnable(GL_CULL_FACE);
|
---|
607 |
|
---|
608 | glDisable(GL_TEXTURE_2D);
|
---|
609 |
|
---|
610 | GLfloat ambientColor[] = {0.2, 0.2, 0.2, 1.0};
|
---|
611 | GLfloat diffuseColor[] = {1.0, 0.0, 0.0, 1.0};
|
---|
612 | GLfloat specularColor[] = {0.0, 0.0, 0.0, 1.0};
|
---|
613 |
|
---|
614 | glMaterialfv(GL_FRONT, GL_AMBIENT, ambientColor);
|
---|
615 | glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuseColor);
|
---|
616 | glMaterialfv(GL_FRONT, GL_SPECULAR, specularColor);
|
---|
617 |
|
---|
618 | glDepthFunc(GL_LESS);
|
---|
619 |
|
---|
620 | if (!InitFont())
|
---|
621 | cerr << "font creation failed" << endl;
|
---|
622 | else
|
---|
623 | cout << "successfully created font" << endl;
|
---|
624 |
|
---|
625 |
|
---|
626 | //////////////////////////////
|
---|
627 |
|
---|
628 | //GLfloat lmodel_ambient[] = {1.0f, 1.0f, 1.0f, 1.0f};
|
---|
629 | GLfloat lmodel_ambient[] = {0.7f, 0.7f, 0.8f, 1.0f};
|
---|
630 |
|
---|
631 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
|
---|
632 | //glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
|
---|
633 | glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_FALSE);
|
---|
634 | glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL_EXT, GL_SINGLE_COLOR_EXT);
|
---|
635 | }
|
---|
636 |
|
---|
637 |
|
---|
638 | void DrawHelpMessage()
|
---|
639 | {
|
---|
640 | const char *message[] =
|
---|
641 | {
|
---|
642 | "Help information",
|
---|
643 | "",
|
---|
644 | "'F1' - shows/dismisses this message",
|
---|
645 | "'F2' - shows/hides bird eye view",
|
---|
646 | "'F3' - shows/hides bounds (boxes or tight bounds)",
|
---|
647 | "'F4', - shows/hides parameters",
|
---|
648 | "'F5' - shows/hides statistics",
|
---|
649 | "'F6', - toggles between fly/walkmode",
|
---|
650 | "'F7', - cycles throw render modes",
|
---|
651 | "'F8', - enables/disables ambient occlusion (only deferred)",
|
---|
652 | "'F9', - shows pure algorithm render time (using glFinish)",
|
---|
653 | "'SPACE' - cycles through occlusion culling algorithms",
|
---|
654 | "",
|
---|
655 | "'MOUSE LEFT' - turn left/right, move forward/backward",
|
---|
656 | "'MOUSE RIGHT' - turn left/right, move forward/backward",
|
---|
657 | "'MOUSE MIDDLE' - move up/down, left/right",
|
---|
658 | "'CURSOR UP/DOWN' - move forward/backward",
|
---|
659 | "'CURSOR LEFT/RIGHT' - turn left/right",
|
---|
660 | "",
|
---|
661 | "'-'/'+' - decreases/increases max batch size",
|
---|
662 | "'1'/'2' - downward/upward motion",
|
---|
663 | "'3'/'4' - decreases/increases triangles per virtual bvh leaf (sets bvh depth)",
|
---|
664 | "'5'/'6' - decreases/increases assumed visible frames",
|
---|
665 | "",
|
---|
666 | "'R' - use render queue",
|
---|
667 | "'B' - use tight bounds",
|
---|
668 | "'M' - use multiqueries",
|
---|
669 | "'O' - use CHC optimization (geometry queries for leaves)",
|
---|
670 | 0,
|
---|
671 | };
|
---|
672 |
|
---|
673 |
|
---|
674 | glColor4f(0.0f, 1.0f , 0.0f, 0.2f); // 20% green.
|
---|
675 |
|
---|
676 | glRecti(30, 30, winWidth - 30, winHeight - 30);
|
---|
677 |
|
---|
678 | glEnd();
|
---|
679 |
|
---|
680 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
681 |
|
---|
682 | glEnable(GL_TEXTURE_2D);
|
---|
683 | myfont.Begin();
|
---|
684 |
|
---|
685 | int x = 40, y = 30;
|
---|
686 |
|
---|
687 | for(int i = 0; message[i] != 0; ++ i)
|
---|
688 | {
|
---|
689 | if(message[i][0] == '\0')
|
---|
690 | {
|
---|
691 | y += 15;
|
---|
692 | }
|
---|
693 | else
|
---|
694 | {
|
---|
695 | myfont.DrawString(message[i], x, winHeight - y);
|
---|
696 | y += 25;
|
---|
697 | }
|
---|
698 | }
|
---|
699 | glDisable(GL_TEXTURE_2D);
|
---|
700 | }
|
---|
701 |
|
---|
702 |
|
---|
703 | RenderTraverser *CreateTraverser(PerspectiveCamera *cam)
|
---|
704 | {
|
---|
705 | RenderTraverser *tr;
|
---|
706 |
|
---|
707 | switch (renderMode)
|
---|
708 | {
|
---|
709 | case RenderTraverser::CULL_FRUSTUM:
|
---|
710 | tr = new FrustumCullingTraverser();
|
---|
711 | break;
|
---|
712 | case RenderTraverser::STOP_AND_WAIT:
|
---|
713 | tr = new StopAndWaitTraverser();
|
---|
714 | break;
|
---|
715 | case RenderTraverser::CHC:
|
---|
716 | tr = new CHCTraverser();
|
---|
717 | break;
|
---|
718 | case RenderTraverser::CHCPLUSPLUS:
|
---|
719 | tr = new CHCPlusPlusTraverser();
|
---|
720 | break;
|
---|
721 |
|
---|
722 | default:
|
---|
723 | tr = new FrustumCullingTraverser();
|
---|
724 | }
|
---|
725 |
|
---|
726 | tr->SetCamera(cam);
|
---|
727 | tr->SetHierarchy(bvh);
|
---|
728 | tr->SetRenderQueue(renderQueue);
|
---|
729 | tr->SetRenderState(&state);
|
---|
730 | tr->SetUseOptimization(useOptimization);
|
---|
731 | tr->SetUseRenderQueue(useRenderQueue);
|
---|
732 | tr->SetVisibilityThreshold(threshold);
|
---|
733 | tr->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
734 | tr->SetMaxBatchSize(maxBatchSize);
|
---|
735 | tr->SetUseMultiQueries(useMultiQueries);
|
---|
736 | tr->SetUseTightBounds(useTightBounds);
|
---|
737 | tr->SetUseDepthPass((renderMethod == RENDER_DEPTH_PASS) || (renderMethod == RENDER_DEPTH_PASS_DEFERRED));
|
---|
738 | tr->SetRenderQueue(renderQueue);
|
---|
739 | tr->SetShowBounds(showBoundingVolumes);
|
---|
740 |
|
---|
741 | bvh->ResetNodeClassifications();
|
---|
742 |
|
---|
743 |
|
---|
744 | return tr;
|
---|
745 | }
|
---|
746 |
|
---|
747 | /** Setup sunlight
|
---|
748 | */
|
---|
749 | void SetupLighting()
|
---|
750 | {
|
---|
751 | glEnable(GL_LIGHT0);
|
---|
752 | glDisable(GL_LIGHT1);
|
---|
753 |
|
---|
754 | Vector3 lightDir = -light->GetDirection();
|
---|
755 |
|
---|
756 |
|
---|
757 | ///////////
|
---|
758 | //-- first light: sunlight
|
---|
759 |
|
---|
760 | GLfloat ambient[] = {0.25f, 0.25f, 0.3f, 1.0f};
|
---|
761 | GLfloat diffuse[] = {1.0f, 0.95f, 0.85f, 1.0f};
|
---|
762 | GLfloat specular[] = {1.0f, 1.0f, 1.0f, 1.0f};
|
---|
763 |
|
---|
764 |
|
---|
765 | const bool useToneMapping =
|
---|
766 | ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) ||
|
---|
767 | (renderMethod == RENDER_DEFERRED)) && useHDR;
|
---|
768 |
|
---|
769 |
|
---|
770 | Vector3 sunAmbient;
|
---|
771 | Vector3 sunDiffuse;
|
---|
772 |
|
---|
773 | preetham->ComputeSunColor(lightDir, sunAmbient, sunDiffuse, !useToneMapping);
|
---|
774 |
|
---|
775 | ambient[0] = sunAmbient.x;
|
---|
776 | ambient[1] = sunAmbient.y;
|
---|
777 | ambient[2] = sunAmbient.z;
|
---|
778 |
|
---|
779 | // no tone mapping => scale
|
---|
780 | if (0)//!useToneMapping)
|
---|
781 | {
|
---|
782 | float maxComponent = sunDiffuse.MaxComponent();
|
---|
783 | sunDiffuse /= maxComponent;
|
---|
784 | }
|
---|
785 |
|
---|
786 | diffuse[0] = sunDiffuse.x;
|
---|
787 | diffuse[1] = sunDiffuse.y;
|
---|
788 | diffuse[2] = sunDiffuse.z;
|
---|
789 |
|
---|
790 | //cout << sunDiffuse << " " << sunAmbient << endl;
|
---|
791 |
|
---|
792 | glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
|
---|
793 | glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
|
---|
794 | glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
|
---|
795 |
|
---|
796 | GLfloat position[] = {lightDir.x, lightDir.y, lightDir.z, 0.0f};
|
---|
797 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
798 | }
|
---|
799 |
|
---|
800 |
|
---|
801 | void SetupEyeView()
|
---|
802 | {
|
---|
803 | // store matrix of last frame
|
---|
804 | oldViewProjMat = viewProjMat;
|
---|
805 |
|
---|
806 | camera->SetupViewProjection();
|
---|
807 |
|
---|
808 |
|
---|
809 | /////////////////
|
---|
810 | //-- compute view projection matrix and store for later use
|
---|
811 |
|
---|
812 | Matrix4x4 matViewing, matProjection;
|
---|
813 |
|
---|
814 | camera->GetModelViewMatrix(matViewing);
|
---|
815 | camera->GetProjectionMatrix(matProjection);
|
---|
816 |
|
---|
817 | viewProjMat = matViewing * matProjection;
|
---|
818 | }
|
---|
819 |
|
---|
820 |
|
---|
821 | void KeyHorizontalMotion(float shift)
|
---|
822 | {
|
---|
823 | Vector3 hvec = -camera->GetDirection();
|
---|
824 | hvec.z = 0;
|
---|
825 |
|
---|
826 | Vector3 pos = camera->GetPosition();
|
---|
827 | pos += hvec * shift;
|
---|
828 |
|
---|
829 | camera->SetPosition(pos);
|
---|
830 | }
|
---|
831 |
|
---|
832 |
|
---|
833 | void KeyVerticalMotion(float shift)
|
---|
834 | {
|
---|
835 | Vector3 uvec = Vector3(0, 0, shift);
|
---|
836 |
|
---|
837 | Vector3 pos = camera->GetPosition();
|
---|
838 | pos += uvec;
|
---|
839 |
|
---|
840 | camera->SetPosition(pos);
|
---|
841 | }
|
---|
842 |
|
---|
843 |
|
---|
844 | /** Initialize the deferred rendering pass.
|
---|
845 | */
|
---|
846 | void InitDeferredRendering()
|
---|
847 | {
|
---|
848 | if (!fbo) InitFBO();
|
---|
849 | fbo->Bind();
|
---|
850 |
|
---|
851 | // multisampling does not work with deferred shading
|
---|
852 | glDisable(GL_MULTISAMPLE_ARB);
|
---|
853 | state.SetRenderTechnique(DEFERRED);
|
---|
854 |
|
---|
855 |
|
---|
856 | // draw to 3 color buffers
|
---|
857 | // a color, normal, and positions buffer
|
---|
858 | if (sCurrentMrtSet == 0)
|
---|
859 | {
|
---|
860 | DeferredRenderer::colorBufferIdx = 0;
|
---|
861 | glDrawBuffers(2, mrt);
|
---|
862 | }
|
---|
863 | else
|
---|
864 | {
|
---|
865 | DeferredRenderer::colorBufferIdx = 3;
|
---|
866 | glDrawBuffers(2, mrt2);
|
---|
867 | }
|
---|
868 |
|
---|
869 | sCurrentMrtSet = 1 - sCurrentMrtSet;
|
---|
870 | }
|
---|
871 |
|
---|
872 |
|
---|
873 | /** the main rendering loop
|
---|
874 | */
|
---|
875 | void MainLoop()
|
---|
876 | {
|
---|
877 | //motionPath->Move(0.3f);
|
---|
878 | motionPath->Move(0.01f);
|
---|
879 |
|
---|
880 | Vector3 planepos = motionPath->GetCurrentPosition();
|
---|
881 |
|
---|
882 | Matrix4x4 mat = TranslationMatrix(planepos);
|
---|
883 | buddha->GetTransform()->SetMatrix(mat);
|
---|
884 |
|
---|
885 | Vector3 oldPos = camera->GetPosition();
|
---|
886 |
|
---|
887 | if (leftKeyPressed)
|
---|
888 | camera->Pitch(KeyRotationAngle());
|
---|
889 | if (rightKeyPressed)
|
---|
890 | camera->Pitch(-KeyRotationAngle());
|
---|
891 | if (upKeyPressed)
|
---|
892 | KeyHorizontalMotion(-KeyShift());
|
---|
893 | if (downKeyPressed)
|
---|
894 | KeyHorizontalMotion(KeyShift());
|
---|
895 | if (ascendKeyPressed)
|
---|
896 | KeyVerticalMotion(KeyShift());
|
---|
897 | if (descendKeyPressed)
|
---|
898 | KeyVerticalMotion(-KeyShift());
|
---|
899 |
|
---|
900 | // place view on ground
|
---|
901 | if (!flyMode) PlaceViewer(oldPos);
|
---|
902 |
|
---|
903 | if (showAlgorithmTime)
|
---|
904 | {
|
---|
905 | glFinish();
|
---|
906 | algTimer.Start();
|
---|
907 | }
|
---|
908 |
|
---|
909 |
|
---|
910 | if ((!shadowMap || !shadowTraverser) && (showShadowMap || renderLightView))
|
---|
911 | {
|
---|
912 | if (!shadowMap)
|
---|
913 | shadowMap = new ShadowMap(light, shadowSize, bvh->GetBox(), camera);
|
---|
914 |
|
---|
915 | if (!shadowTraverser)
|
---|
916 | shadowTraverser = CreateTraverser(shadowMap->GetShadowCamera());
|
---|
917 |
|
---|
918 | }
|
---|
919 |
|
---|
920 | // bring eye modelview matrix up-to-date
|
---|
921 | SetupEyeView();
|
---|
922 | // set frame related parameters for GPU programs
|
---|
923 | GPUProgramParameters::InitFrame(camera, light);
|
---|
924 |
|
---|
925 | // hack: store current rendering method and restore later
|
---|
926 | int oldRenderMethod = renderMethod;
|
---|
927 | // for rendering the light view, we use forward rendering
|
---|
928 | if (renderLightView) renderMethod = FORWARD;
|
---|
929 |
|
---|
930 | /// enable vbo vertex array
|
---|
931 | glEnableClientState(GL_VERTEX_ARRAY);
|
---|
932 |
|
---|
933 |
|
---|
934 | // render with the specified method (forward rendering, forward + depth, deferred)
|
---|
935 | switch (renderMethod)
|
---|
936 | {
|
---|
937 | case RENDER_FORWARD:
|
---|
938 |
|
---|
939 | glEnable(GL_MULTISAMPLE_ARB);
|
---|
940 |
|
---|
941 | state.SetRenderTechnique(FORWARD);
|
---|
942 | glEnable(GL_LIGHTING);
|
---|
943 |
|
---|
944 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
945 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
946 | break;
|
---|
947 |
|
---|
948 | case RENDER_DEPTH_PASS_DEFERRED:
|
---|
949 |
|
---|
950 | glDisable(GL_MULTISAMPLE_ARB);
|
---|
951 | state.SetUseAlphaToCoverage(false);
|
---|
952 |
|
---|
953 | state.SetRenderTechnique(DEPTH_PASS);
|
---|
954 |
|
---|
955 | if (!fbo) InitFBO(); fbo->Bind();
|
---|
956 |
|
---|
957 | glDrawBuffers(1, mrt);
|
---|
958 |
|
---|
959 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
960 |
|
---|
961 | // the scene is rendered withouth any shading
|
---|
962 | // (should be handled by render state)
|
---|
963 | glShadeModel(GL_FLAT);
|
---|
964 | break;
|
---|
965 |
|
---|
966 | case RENDER_DEPTH_PASS:
|
---|
967 |
|
---|
968 | glEnable(GL_MULTISAMPLE_ARB);
|
---|
969 |
|
---|
970 | state.SetRenderTechnique(DEPTH_PASS);
|
---|
971 |
|
---|
972 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
973 |
|
---|
974 | // the scene is rendered withouth any shading
|
---|
975 | // (should be handled by render state)
|
---|
976 | glShadeModel(GL_FLAT);
|
---|
977 | break;
|
---|
978 |
|
---|
979 | case RENDER_DEFERRED:
|
---|
980 |
|
---|
981 | if (showShadowMap && !renderLightView)
|
---|
982 | RenderShadowMap(camera->GetFar());
|
---|
983 |
|
---|
984 | //glPushAttrib(GL_VIEWPORT_BIT);
|
---|
985 | glViewport(0, 0, texWidth, texHeight);
|
---|
986 |
|
---|
987 | InitDeferredRendering();
|
---|
988 |
|
---|
989 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
990 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
991 | break;
|
---|
992 | }
|
---|
993 |
|
---|
994 | glDepthFunc(GL_LESS);
|
---|
995 | glDisable(GL_TEXTURE_2D);
|
---|
996 | glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
---|
997 |
|
---|
998 |
|
---|
999 | // set proper lod levels for current frame using current eye point
|
---|
1000 | LODLevel::InitFrame(camera->GetPosition());
|
---|
1001 | // set up sunlight
|
---|
1002 | SetupLighting();
|
---|
1003 |
|
---|
1004 |
|
---|
1005 | if (renderLightView)
|
---|
1006 | {
|
---|
1007 | // change CHC++ set of state variables:
|
---|
1008 | // must be done for each change of camera because otherwise
|
---|
1009 | // the temporal coherency is broken
|
---|
1010 | BvhNode::SetCurrentState(LIGHT_PASS);
|
---|
1011 | shadowMap->RenderShadowView(shadowTraverser, viewProjMat);
|
---|
1012 | BvhNode::SetCurrentState(CAMERA_PASS);
|
---|
1013 | }
|
---|
1014 | else
|
---|
1015 | {
|
---|
1016 | // actually render the scene geometry using the specified algorithm
|
---|
1017 | traverser->RenderScene();
|
---|
1018 | }
|
---|
1019 |
|
---|
1020 |
|
---|
1021 | /////////
|
---|
1022 | //-- do the rest of the rendering
|
---|
1023 |
|
---|
1024 | // reset depth pass and render visible objects
|
---|
1025 | if ((renderMethod == RENDER_DEPTH_PASS) ||
|
---|
1026 | (renderMethod == RENDER_DEPTH_PASS_DEFERRED))
|
---|
1027 | {
|
---|
1028 | RenderVisibleObjects();
|
---|
1029 | }
|
---|
1030 |
|
---|
1031 |
|
---|
1032 | ///////////////
|
---|
1033 | //-- render sky
|
---|
1034 |
|
---|
1035 | // q: should we render sky after deferred shading?
|
---|
1036 | // this would conveniently solves some issues (e.g, skys without shadows)
|
---|
1037 |
|
---|
1038 | RenderSky();
|
---|
1039 |
|
---|
1040 |
|
---|
1041 | if ((renderMethod == RENDER_DEFERRED) ||
|
---|
1042 | (renderMethod == RENDER_DEPTH_PASS_DEFERRED))
|
---|
1043 | {
|
---|
1044 | FrameBufferObject::Release();
|
---|
1045 |
|
---|
1046 | if (!ssaoShader) ssaoShader =
|
---|
1047 | new DeferredRenderer(texWidth, texHeight, camera);
|
---|
1048 |
|
---|
1049 | DeferredRenderer::SHADING_METHOD shadingMethod;
|
---|
1050 |
|
---|
1051 | if (useAdvancedShading)
|
---|
1052 | {
|
---|
1053 | if (useGlobIllum)
|
---|
1054 | shadingMethod = DeferredRenderer::GI;
|
---|
1055 | else
|
---|
1056 | shadingMethod = DeferredRenderer::SSAO;
|
---|
1057 | }
|
---|
1058 | else
|
---|
1059 | shadingMethod = DeferredRenderer::DEFAULT;
|
---|
1060 |
|
---|
1061 |
|
---|
1062 | ssaoShader->SetShadingMethod(shadingMethod);
|
---|
1063 | ssaoShader->SetSamplingMethod(samplingMethod);
|
---|
1064 | ssaoShader->SetUseTemporalCoherence(useTemporalCoherence);
|
---|
1065 |
|
---|
1066 | ShadowMap *sm = showShadowMap ? shadowMap : NULL;
|
---|
1067 | ssaoShader->Render(fbo, ssaoTempCohFactor, light, useHDR, sm);
|
---|
1068 | }
|
---|
1069 |
|
---|
1070 |
|
---|
1071 | state.SetRenderTechnique(FORWARD);
|
---|
1072 | state.Reset();
|
---|
1073 |
|
---|
1074 |
|
---|
1075 | glDisableClientState(GL_VERTEX_ARRAY);
|
---|
1076 | glDisableClientState(GL_NORMAL_ARRAY);
|
---|
1077 |
|
---|
1078 | renderMethod = oldRenderMethod;
|
---|
1079 |
|
---|
1080 |
|
---|
1081 | ///////////
|
---|
1082 |
|
---|
1083 |
|
---|
1084 | if (showAlgorithmTime)
|
---|
1085 | {
|
---|
1086 | glFinish();
|
---|
1087 |
|
---|
1088 | algTime = algTimer.Elapsedms();
|
---|
1089 | perfGraph->AddData(algTime);
|
---|
1090 |
|
---|
1091 | perfGraph->Draw();
|
---|
1092 | }
|
---|
1093 | else
|
---|
1094 | {
|
---|
1095 | if (visMode) DisplayVisualization();
|
---|
1096 | }
|
---|
1097 |
|
---|
1098 | glFlush();
|
---|
1099 |
|
---|
1100 | const bool restart = true;
|
---|
1101 | elapsedTime = frameTimer.Elapsedms(restart);
|
---|
1102 |
|
---|
1103 | DisplayStats();
|
---|
1104 |
|
---|
1105 | glutSwapBuffers();
|
---|
1106 | }
|
---|
1107 |
|
---|
1108 |
|
---|
1109 | #pragma warning( disable : 4100 )
|
---|
1110 | void KeyBoard(unsigned char c, int x, int y)
|
---|
1111 | {
|
---|
1112 | switch(c)
|
---|
1113 | {
|
---|
1114 | case 27:
|
---|
1115 | CleanUp();
|
---|
1116 | exit(0);
|
---|
1117 | case 32: // space
|
---|
1118 | renderMode = (renderMode + 1) % RenderTraverser::NUM_TRAVERSAL_TYPES;
|
---|
1119 |
|
---|
1120 | DEL_PTR(traverser);
|
---|
1121 | traverser = CreateTraverser(camera);
|
---|
1122 |
|
---|
1123 | if (shadowTraverser)
|
---|
1124 | {
|
---|
1125 | // shadow traverser has to be recomputed
|
---|
1126 | DEL_PTR(shadowTraverser);
|
---|
1127 | shadowTraverser = CreateTraverser(shadowMap->GetShadowCamera());
|
---|
1128 | }
|
---|
1129 |
|
---|
1130 | break;
|
---|
1131 | case '+':
|
---|
1132 | if (maxBatchSize < 10)
|
---|
1133 | maxBatchSize = 10;
|
---|
1134 | else
|
---|
1135 | maxBatchSize += 10;
|
---|
1136 |
|
---|
1137 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
1138 | break;
|
---|
1139 | case '-':
|
---|
1140 | maxBatchSize -= 10;
|
---|
1141 | if (maxBatchSize < 0) maxBatchSize = 1;
|
---|
1142 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
1143 | break;
|
---|
1144 | case 'M':
|
---|
1145 | case 'm':
|
---|
1146 | useMultiQueries = !useMultiQueries;
|
---|
1147 | traverser->SetUseMultiQueries(useMultiQueries);
|
---|
1148 | break;
|
---|
1149 | case '1':
|
---|
1150 | descendKeyPressed = true;
|
---|
1151 | break;
|
---|
1152 | case '2':
|
---|
1153 | ascendKeyPressed = true;
|
---|
1154 | break;
|
---|
1155 | case '3':
|
---|
1156 | if (trianglesPerVirtualLeaf >= 100)
|
---|
1157 | trianglesPerVirtualLeaf -= 100;
|
---|
1158 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
1159 | break;
|
---|
1160 | case '4':
|
---|
1161 | trianglesPerVirtualLeaf += 100;
|
---|
1162 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
1163 | break;
|
---|
1164 | case '5':
|
---|
1165 | assumedVisibleFrames -= 1;
|
---|
1166 | if (assumedVisibleFrames < 1) assumedVisibleFrames = 1;
|
---|
1167 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
1168 | break;
|
---|
1169 | case '6':
|
---|
1170 | assumedVisibleFrames += 1;
|
---|
1171 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
1172 | break;
|
---|
1173 | case '7':
|
---|
1174 | ssaoTempCohFactor *= 0.5f;
|
---|
1175 | break;
|
---|
1176 | case '8':
|
---|
1177 | ssaoTempCohFactor *= 2.0f;
|
---|
1178 | //if (ssaoTempCohFactor > 1.0f) ssaoExpFactor = 1.0f;
|
---|
1179 | break;
|
---|
1180 | case '9':
|
---|
1181 | useLODs = !useLODs;
|
---|
1182 | SceneEntity::SetUseLODs(useLODs);
|
---|
1183 | break;
|
---|
1184 | case 'P':
|
---|
1185 | case 'p':
|
---|
1186 | samplingMethod = DeferredRenderer::SAMPLING_METHOD((samplingMethod + 1) % 3);
|
---|
1187 | cout << "ssao sampling method: " << samplingMethod << endl;
|
---|
1188 | break;
|
---|
1189 | case 'Y':
|
---|
1190 | case 'y':
|
---|
1191 | showShadowMap = !showShadowMap;
|
---|
1192 | break;
|
---|
1193 | case 'g':
|
---|
1194 | case 'G':
|
---|
1195 | useGlobIllum = !useGlobIllum;
|
---|
1196 | break;
|
---|
1197 | case 't':
|
---|
1198 | case 'T':
|
---|
1199 | useTemporalCoherence = !useTemporalCoherence;
|
---|
1200 | break;
|
---|
1201 | case 'o':
|
---|
1202 | case 'O':
|
---|
1203 | useOptimization = !useOptimization;
|
---|
1204 | traverser->SetUseOptimization(useOptimization);
|
---|
1205 | break;
|
---|
1206 | case 'a':
|
---|
1207 | case 'A':
|
---|
1208 | leftKeyPressed = true;
|
---|
1209 | break;
|
---|
1210 | case 'd':
|
---|
1211 | case 'D':
|
---|
1212 | rightKeyPressed = true;
|
---|
1213 | break;
|
---|
1214 | case 'w':
|
---|
1215 | case 'W':
|
---|
1216 | upKeyPressed = true;
|
---|
1217 | break;
|
---|
1218 | case 's':
|
---|
1219 | case 'S':
|
---|
1220 | downKeyPressed = true;
|
---|
1221 | break;
|
---|
1222 | case 'r':
|
---|
1223 | case 'R':
|
---|
1224 | useRenderQueue = !useRenderQueue;
|
---|
1225 | traverser->SetUseRenderQueue(useRenderQueue);
|
---|
1226 |
|
---|
1227 | break;
|
---|
1228 | case 'b':
|
---|
1229 | case 'B':
|
---|
1230 | useTightBounds = !useTightBounds;
|
---|
1231 | traverser->SetUseTightBounds(useTightBounds);
|
---|
1232 | break;
|
---|
1233 | case 'l':
|
---|
1234 | case 'L':
|
---|
1235 | renderLightView = !renderLightView;
|
---|
1236 | break;
|
---|
1237 | case 'h':
|
---|
1238 | case 'H':
|
---|
1239 | useHDR = !useHDR;
|
---|
1240 | break;
|
---|
1241 | default:
|
---|
1242 | return;
|
---|
1243 | }
|
---|
1244 |
|
---|
1245 | glutPostRedisplay();
|
---|
1246 | }
|
---|
1247 |
|
---|
1248 |
|
---|
1249 | void SpecialKeyUp(int c, int x, int y)
|
---|
1250 | {
|
---|
1251 | switch (c)
|
---|
1252 | {
|
---|
1253 | case GLUT_KEY_LEFT:
|
---|
1254 | leftKeyPressed = false;
|
---|
1255 | break;
|
---|
1256 | case GLUT_KEY_RIGHT:
|
---|
1257 | rightKeyPressed = false;
|
---|
1258 | break;
|
---|
1259 | case GLUT_KEY_UP:
|
---|
1260 | upKeyPressed = false;
|
---|
1261 | break;
|
---|
1262 | case GLUT_KEY_DOWN:
|
---|
1263 | downKeyPressed = false;
|
---|
1264 | break;
|
---|
1265 | case GLUT_ACTIVE_ALT:
|
---|
1266 | altKeyPressed = false;
|
---|
1267 | break;
|
---|
1268 | default:
|
---|
1269 | return;
|
---|
1270 | }
|
---|
1271 | }
|
---|
1272 |
|
---|
1273 |
|
---|
1274 | void KeyUp(unsigned char c, int x, int y)
|
---|
1275 | {
|
---|
1276 | switch (c)
|
---|
1277 | {
|
---|
1278 |
|
---|
1279 | case 'A':
|
---|
1280 | case 'a':
|
---|
1281 | leftKeyPressed = false;
|
---|
1282 | break;
|
---|
1283 | case 'D':
|
---|
1284 | case 'd':
|
---|
1285 | rightKeyPressed = false;
|
---|
1286 | break;
|
---|
1287 | case 'W':
|
---|
1288 | case 'w':
|
---|
1289 | upKeyPressed = false;
|
---|
1290 | break;
|
---|
1291 | case 'S':
|
---|
1292 | case 's':
|
---|
1293 | downKeyPressed = false;
|
---|
1294 | break;
|
---|
1295 | case '1':
|
---|
1296 | descendKeyPressed = false;
|
---|
1297 | break;
|
---|
1298 | case '2':
|
---|
1299 | ascendKeyPressed = false;
|
---|
1300 | break;
|
---|
1301 |
|
---|
1302 | default:
|
---|
1303 | return;
|
---|
1304 | }
|
---|
1305 | //glutPostRedisplay();
|
---|
1306 | }
|
---|
1307 |
|
---|
1308 |
|
---|
1309 | void Special(int c, int x, int y)
|
---|
1310 | {
|
---|
1311 | switch(c)
|
---|
1312 | {
|
---|
1313 | case GLUT_KEY_F1:
|
---|
1314 | showHelp = !showHelp;
|
---|
1315 | break;
|
---|
1316 | case GLUT_KEY_F2:
|
---|
1317 | visMode = !visMode;
|
---|
1318 | break;
|
---|
1319 | case GLUT_KEY_F3:
|
---|
1320 | showBoundingVolumes = !showBoundingVolumes;
|
---|
1321 | traverser->SetShowBounds(showBoundingVolumes);
|
---|
1322 | break;
|
---|
1323 | case GLUT_KEY_F4:
|
---|
1324 | showOptions = !showOptions;
|
---|
1325 | break;
|
---|
1326 | case GLUT_KEY_F5:
|
---|
1327 | showStatistics = !showStatistics;
|
---|
1328 | break;
|
---|
1329 | case GLUT_KEY_F6:
|
---|
1330 | flyMode = !flyMode;
|
---|
1331 | break;
|
---|
1332 | case GLUT_KEY_F7:
|
---|
1333 |
|
---|
1334 | renderMethod = (renderMethod + 1) % 4;
|
---|
1335 |
|
---|
1336 | traverser->SetUseDepthPass(
|
---|
1337 | (renderMethod == RENDER_DEPTH_PASS) ||
|
---|
1338 | (renderMethod == RENDER_DEPTH_PASS_DEFERRED)
|
---|
1339 | );
|
---|
1340 |
|
---|
1341 | break;
|
---|
1342 | case GLUT_KEY_F8:
|
---|
1343 | useAdvancedShading = !useAdvancedShading;
|
---|
1344 |
|
---|
1345 | break;
|
---|
1346 | case GLUT_KEY_F9:
|
---|
1347 | showAlgorithmTime = !showAlgorithmTime;
|
---|
1348 | break;
|
---|
1349 | case GLUT_KEY_F10:
|
---|
1350 | moveLight = !moveLight;
|
---|
1351 | break;
|
---|
1352 | case GLUT_KEY_LEFT:
|
---|
1353 | {
|
---|
1354 | leftKeyPressed = true;
|
---|
1355 | camera->Pitch(KeyRotationAngle());
|
---|
1356 | }
|
---|
1357 | break;
|
---|
1358 | case GLUT_KEY_RIGHT:
|
---|
1359 | {
|
---|
1360 | rightKeyPressed = true;
|
---|
1361 | camera->Pitch(-KeyRotationAngle());
|
---|
1362 | }
|
---|
1363 | break;
|
---|
1364 | case GLUT_KEY_UP:
|
---|
1365 | {
|
---|
1366 | upKeyPressed = true;
|
---|
1367 | KeyHorizontalMotion(KeyShift());
|
---|
1368 | }
|
---|
1369 | break;
|
---|
1370 | case GLUT_KEY_DOWN:
|
---|
1371 | {
|
---|
1372 | downKeyPressed = true;
|
---|
1373 | KeyHorizontalMotion(-KeyShift());
|
---|
1374 | }
|
---|
1375 | break;
|
---|
1376 | default:
|
---|
1377 | return;
|
---|
1378 |
|
---|
1379 | }
|
---|
1380 |
|
---|
1381 | glutPostRedisplay();
|
---|
1382 | }
|
---|
1383 |
|
---|
1384 | #pragma warning( default : 4100 )
|
---|
1385 |
|
---|
1386 |
|
---|
1387 | void Reshape(int w, int h)
|
---|
1388 | {
|
---|
1389 | winAspectRatio = 1.0f;
|
---|
1390 |
|
---|
1391 | glViewport(0, 0, w, h);
|
---|
1392 |
|
---|
1393 | winWidth = w;
|
---|
1394 | winHeight = h;
|
---|
1395 |
|
---|
1396 | if (w) winAspectRatio = (float) w / (float) h;
|
---|
1397 |
|
---|
1398 | glMatrixMode(GL_PROJECTION);
|
---|
1399 | glLoadIdentity();
|
---|
1400 |
|
---|
1401 | gluPerspective(fov, winAspectRatio, nearDist, farDist);
|
---|
1402 |
|
---|
1403 | glMatrixMode(GL_MODELVIEW);
|
---|
1404 |
|
---|
1405 | glutPostRedisplay();
|
---|
1406 | }
|
---|
1407 |
|
---|
1408 |
|
---|
1409 | void Mouse(int button, int state, int x, int y)
|
---|
1410 | {
|
---|
1411 | if ((button == GLUT_LEFT_BUTTON) && (state == GLUT_DOWN))
|
---|
1412 | {
|
---|
1413 | xEyeBegin = x;
|
---|
1414 | yMotionBegin = y;
|
---|
1415 |
|
---|
1416 | glutMotionFunc(LeftMotion);
|
---|
1417 | }
|
---|
1418 | else if ((button == GLUT_RIGHT_BUTTON) && (state == GLUT_DOWN))
|
---|
1419 | {
|
---|
1420 | xEyeBegin = x;
|
---|
1421 | yEyeBegin = y;
|
---|
1422 | yMotionBegin = y;
|
---|
1423 |
|
---|
1424 | if (!moveLight)
|
---|
1425 | glutMotionFunc(RightMotion);
|
---|
1426 | else
|
---|
1427 | glutMotionFunc(RightMotionLight);
|
---|
1428 | }
|
---|
1429 | else if ((button == GLUT_MIDDLE_BUTTON) && (state == GLUT_DOWN))
|
---|
1430 | {
|
---|
1431 | horizontalMotionBegin = x;
|
---|
1432 | verticalMotionBegin = y;
|
---|
1433 | glutMotionFunc(MiddleMotion);
|
---|
1434 | }
|
---|
1435 |
|
---|
1436 | glutPostRedisplay();
|
---|
1437 | }
|
---|
1438 |
|
---|
1439 |
|
---|
1440 | /** rotation for left/right mouse drag
|
---|
1441 | motion for up/down mouse drag
|
---|
1442 | */
|
---|
1443 | void LeftMotion(int x, int y)
|
---|
1444 | {
|
---|
1445 | Vector3 viewDir = camera->GetDirection();
|
---|
1446 | Vector3 pos = camera->GetPosition();
|
---|
1447 |
|
---|
1448 | // don't move in the vertical direction
|
---|
1449 | Vector3 horView(viewDir[0], viewDir[1], 0);
|
---|
1450 |
|
---|
1451 | float eyeXAngle = 0.2f * M_PI * (xEyeBegin - x) / 180.0;
|
---|
1452 |
|
---|
1453 | camera->Pitch(eyeXAngle);
|
---|
1454 |
|
---|
1455 | pos += horView * (yMotionBegin - y) * 0.2f;
|
---|
1456 |
|
---|
1457 | camera->SetPosition(pos);
|
---|
1458 |
|
---|
1459 | xEyeBegin = x;
|
---|
1460 | yMotionBegin = y;
|
---|
1461 |
|
---|
1462 | glutPostRedisplay();
|
---|
1463 | }
|
---|
1464 |
|
---|
1465 |
|
---|
1466 | void RightMotionLight(int x, int y)
|
---|
1467 | {
|
---|
1468 | float theta = 0.2f * M_PI * (xEyeBegin - x) / 180.0f;
|
---|
1469 | float phi = 0.2f * M_PI * (yMotionBegin - y) / 180.0f;
|
---|
1470 |
|
---|
1471 | Vector3 lightDir = light->GetDirection();
|
---|
1472 |
|
---|
1473 | Matrix4x4 roty = RotationYMatrix(theta);
|
---|
1474 | Matrix4x4 rotx = RotationXMatrix(phi);
|
---|
1475 |
|
---|
1476 | lightDir = roty * lightDir;
|
---|
1477 | lightDir = rotx * lightDir;
|
---|
1478 |
|
---|
1479 | // normalize to avoid accumulating errors
|
---|
1480 | lightDir.Normalize();
|
---|
1481 |
|
---|
1482 | light->SetDirection(lightDir);
|
---|
1483 |
|
---|
1484 | xEyeBegin = x;
|
---|
1485 | yMotionBegin = y;
|
---|
1486 |
|
---|
1487 | glutPostRedisplay();
|
---|
1488 | }
|
---|
1489 |
|
---|
1490 |
|
---|
1491 | /** rotation for left / right mouse drag
|
---|
1492 | motion for up / down mouse drag
|
---|
1493 | */
|
---|
1494 | void RightMotion(int x, int y)
|
---|
1495 | {
|
---|
1496 | float eyeXAngle = 0.2f * M_PI * (xEyeBegin - x) / 180.0;
|
---|
1497 | float eyeYAngle = -0.2f * M_PI * (yEyeBegin - y) / 180.0;
|
---|
1498 |
|
---|
1499 | camera->Yaw(eyeYAngle);
|
---|
1500 | camera->Pitch(eyeXAngle);
|
---|
1501 |
|
---|
1502 | xEyeBegin = x;
|
---|
1503 | yEyeBegin = y;
|
---|
1504 |
|
---|
1505 | glutPostRedisplay();
|
---|
1506 | }
|
---|
1507 |
|
---|
1508 |
|
---|
1509 | // strafe
|
---|
1510 | void MiddleMotion(int x, int y)
|
---|
1511 | {
|
---|
1512 | Vector3 viewDir = camera->GetDirection();
|
---|
1513 | Vector3 pos = camera->GetPosition();
|
---|
1514 |
|
---|
1515 | // the 90 degree rotated view vector
|
---|
1516 | // y zero so we don't move in the vertical
|
---|
1517 | Vector3 rVec(viewDir[0], viewDir[1], 0);
|
---|
1518 |
|
---|
1519 | Matrix4x4 rot = RotationZMatrix(M_PI * 0.5f);
|
---|
1520 | rVec = rot * rVec;
|
---|
1521 |
|
---|
1522 | pos -= rVec * (x - horizontalMotionBegin) * 0.1f;
|
---|
1523 | pos[2] += (verticalMotionBegin - y) * 0.1f;
|
---|
1524 |
|
---|
1525 | camera->SetPosition(pos);
|
---|
1526 |
|
---|
1527 | horizontalMotionBegin = x;
|
---|
1528 | verticalMotionBegin = y;
|
---|
1529 |
|
---|
1530 | glutPostRedisplay();
|
---|
1531 | }
|
---|
1532 |
|
---|
1533 |
|
---|
1534 | void InitExtensions(void)
|
---|
1535 | {
|
---|
1536 | GLenum err = glewInit();
|
---|
1537 |
|
---|
1538 | if (GLEW_OK != err)
|
---|
1539 | {
|
---|
1540 | // problem: glewInit failed, something is seriously wrong
|
---|
1541 | fprintf(stderr,"Error: %s\n", glewGetErrorString(err));
|
---|
1542 | exit(1);
|
---|
1543 | }
|
---|
1544 | if (!GLEW_ARB_occlusion_query)
|
---|
1545 | {
|
---|
1546 | printf("I require the GL_ARB_occlusion_query to work.\n");
|
---|
1547 | exit(1);
|
---|
1548 | }
|
---|
1549 | }
|
---|
1550 |
|
---|
1551 |
|
---|
1552 | void Begin2D()
|
---|
1553 | {
|
---|
1554 | glDisable(GL_LIGHTING);
|
---|
1555 | glDisable(GL_DEPTH_TEST);
|
---|
1556 |
|
---|
1557 | glMatrixMode(GL_PROJECTION);
|
---|
1558 | glPushMatrix();
|
---|
1559 | glLoadIdentity();
|
---|
1560 |
|
---|
1561 | gluOrtho2D(0, winWidth, 0, winHeight);
|
---|
1562 |
|
---|
1563 | glMatrixMode(GL_MODELVIEW);
|
---|
1564 | glPushMatrix();
|
---|
1565 | glLoadIdentity();
|
---|
1566 | }
|
---|
1567 |
|
---|
1568 |
|
---|
1569 | void End2D()
|
---|
1570 | {
|
---|
1571 | glMatrixMode(GL_PROJECTION);
|
---|
1572 | glPopMatrix();
|
---|
1573 |
|
---|
1574 | glMatrixMode(GL_MODELVIEW);
|
---|
1575 | glPopMatrix();
|
---|
1576 |
|
---|
1577 | glEnable(GL_LIGHTING);
|
---|
1578 | glEnable(GL_DEPTH_TEST);
|
---|
1579 | }
|
---|
1580 |
|
---|
1581 |
|
---|
1582 | // displays the visualisation of culling algorithm
|
---|
1583 | void DisplayVisualization()
|
---|
1584 | {
|
---|
1585 | visualization->SetFrameId(traverser->GetCurrentFrameId());
|
---|
1586 |
|
---|
1587 | Begin2D();
|
---|
1588 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
---|
1589 | glEnable(GL_BLEND);
|
---|
1590 | glColor4f(0.0f ,0.0f, 0.0f, 0.5f);
|
---|
1591 |
|
---|
1592 | glRecti(winWidth - winWidth / 3, winHeight - winHeight / 3, winWidth, winHeight);
|
---|
1593 | glDisable(GL_BLEND);
|
---|
1594 | End2D();
|
---|
1595 |
|
---|
1596 |
|
---|
1597 | AxisAlignedBox3 box = bvh->GetBox();
|
---|
1598 |
|
---|
1599 | const float offs = box.Size().x * 0.3f;
|
---|
1600 |
|
---|
1601 | Vector3 vizpos = Vector3(box.Min().x, box.Min().y - box.Size().y * 0.35f, box.Min().z + box.Size().z * 50);
|
---|
1602 |
|
---|
1603 | visCamera->SetPosition(vizpos);
|
---|
1604 | visCamera->ResetPitchAndYaw();
|
---|
1605 |
|
---|
1606 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
1607 | glViewport(winWidth - winWidth / 3, winHeight - winHeight / 3, winWidth / 3, winHeight / 3);
|
---|
1608 |
|
---|
1609 | glMatrixMode(GL_PROJECTION);
|
---|
1610 | glPushMatrix();
|
---|
1611 |
|
---|
1612 | glLoadIdentity();
|
---|
1613 | glOrtho(-offs, offs, -offs, offs, 0.0f, box.Size().z * 100.0f);
|
---|
1614 |
|
---|
1615 | glMatrixMode(GL_MODELVIEW);
|
---|
1616 | glPushMatrix();
|
---|
1617 |
|
---|
1618 | visCamera->SetupCameraView();
|
---|
1619 |
|
---|
1620 | Matrix4x4 rotZ = RotationZMatrix(-camera->GetPitch());
|
---|
1621 | glMultMatrixf((float *)rotZ.x);
|
---|
1622 |
|
---|
1623 | // inverse translation in order to fix current position
|
---|
1624 | Vector3 pos = camera->GetPosition();
|
---|
1625 | glTranslatef(-pos.x, -pos.y, -pos.z);
|
---|
1626 |
|
---|
1627 |
|
---|
1628 | GLfloat position[] = {0.8f, 1.0f, 1.5f, 0.0f};
|
---|
1629 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
1630 |
|
---|
1631 | GLfloat position1[] = {bvh->GetBox().Center().x, bvh->GetBox().Max().y, bvh->GetBox().Center().z, 1.0f};
|
---|
1632 | glLightfv(GL_LIGHT1, GL_POSITION, position1);
|
---|
1633 |
|
---|
1634 | glClear(GL_DEPTH_BUFFER_BIT);
|
---|
1635 |
|
---|
1636 |
|
---|
1637 | ////////////
|
---|
1638 | //-- visualization of the occlusion culling
|
---|
1639 |
|
---|
1640 | visualization->Render(showShadowMap);
|
---|
1641 |
|
---|
1642 |
|
---|
1643 | // reset previous settings
|
---|
1644 | glPopAttrib();
|
---|
1645 |
|
---|
1646 | glMatrixMode(GL_PROJECTION);
|
---|
1647 | glPopMatrix();
|
---|
1648 | glMatrixMode(GL_MODELVIEW);
|
---|
1649 | glPopMatrix();
|
---|
1650 | }
|
---|
1651 |
|
---|
1652 |
|
---|
1653 | // cleanup routine after the main loop
|
---|
1654 | void CleanUp()
|
---|
1655 | {
|
---|
1656 | DEL_PTR(traverser);
|
---|
1657 | DEL_PTR(sceneQuery);
|
---|
1658 | DEL_PTR(bvh);
|
---|
1659 | DEL_PTR(visualization);
|
---|
1660 | DEL_PTR(camera);
|
---|
1661 | DEL_PTR(renderQueue);
|
---|
1662 | DEL_PTR(perfGraph);
|
---|
1663 | DEL_PTR(fbo);
|
---|
1664 | DEL_PTR(ssaoShader);
|
---|
1665 | DEL_PTR(light);
|
---|
1666 | DEL_PTR(visCamera);
|
---|
1667 | DEL_PTR(preetham);
|
---|
1668 | DEL_PTR(shadowMap);
|
---|
1669 | DEL_PTR(shadowTraverser);
|
---|
1670 | DEL_PTR(motionPath);
|
---|
1671 |
|
---|
1672 | ResourceManager::DelSingleton();
|
---|
1673 | ShaderManager::DelSingleton();
|
---|
1674 |
|
---|
1675 | resourceManager = NULL;
|
---|
1676 | shaderManager = NULL;
|
---|
1677 | }
|
---|
1678 |
|
---|
1679 |
|
---|
1680 | // this function inserts a dezimal point after each 1000
|
---|
1681 | void CalcDecimalPoint(string &str, int d, int len)
|
---|
1682 | {
|
---|
1683 | static vector<int> numbers;
|
---|
1684 | numbers.clear();
|
---|
1685 |
|
---|
1686 | static string shortStr;
|
---|
1687 | shortStr.clear();
|
---|
1688 |
|
---|
1689 | static char hstr[100];
|
---|
1690 |
|
---|
1691 | while (d != 0)
|
---|
1692 | {
|
---|
1693 | numbers.push_back(d % 1000);
|
---|
1694 | d /= 1000;
|
---|
1695 | }
|
---|
1696 |
|
---|
1697 | // first element without leading zeros
|
---|
1698 | if (numbers.size() > 0)
|
---|
1699 | {
|
---|
1700 | sprintf(hstr, "%d", numbers.back());
|
---|
1701 | shortStr.append(hstr);
|
---|
1702 | }
|
---|
1703 |
|
---|
1704 | for (int i = (int)numbers.size() - 2; i >= 0; i--)
|
---|
1705 | {
|
---|
1706 | sprintf(hstr, ",%03d", numbers[i]);
|
---|
1707 | shortStr.append(hstr);
|
---|
1708 | }
|
---|
1709 |
|
---|
1710 | int dif = len - (int)shortStr.size();
|
---|
1711 |
|
---|
1712 | for (int i = 0; i < dif; ++ i)
|
---|
1713 | {
|
---|
1714 | str += " ";
|
---|
1715 | }
|
---|
1716 |
|
---|
1717 | str.append(shortStr);
|
---|
1718 | }
|
---|
1719 |
|
---|
1720 |
|
---|
1721 | void DisplayStats()
|
---|
1722 | {
|
---|
1723 | static char msg[9][300];
|
---|
1724 |
|
---|
1725 | static double frameTime = elapsedTime;
|
---|
1726 | static double renderTime = algTime;
|
---|
1727 |
|
---|
1728 | const float expFactor = 0.1f;
|
---|
1729 |
|
---|
1730 | // if some strange render time spike happened in this frame => don't count
|
---|
1731 | if (elapsedTime < 500) frameTime = elapsedTime * expFactor + (1.0f - expFactor) * elapsedTime;
|
---|
1732 |
|
---|
1733 | static float rTime = 1000.0f;
|
---|
1734 |
|
---|
1735 | if (showAlgorithmTime)
|
---|
1736 | {
|
---|
1737 | if (algTime < 500) renderTime = algTime * expFactor + (1.0f - expFactor) * renderTime;
|
---|
1738 | }
|
---|
1739 |
|
---|
1740 | accumulatedTime += elapsedTime;
|
---|
1741 |
|
---|
1742 | if (accumulatedTime > 500) // update every fraction of a second
|
---|
1743 | {
|
---|
1744 | accumulatedTime = 0;
|
---|
1745 |
|
---|
1746 | if (frameTime) fps = 1e3f / (float)frameTime;
|
---|
1747 |
|
---|
1748 | rTime = renderTime;
|
---|
1749 |
|
---|
1750 | if (renderLightView && shadowTraverser)
|
---|
1751 | {
|
---|
1752 | renderedTriangles = shadowTraverser->GetStats().mNumRenderedTriangles;
|
---|
1753 | renderedObjects = shadowTraverser->GetStats().mNumRenderedGeometry;
|
---|
1754 | renderedNodes = shadowTraverser->GetStats().mNumRenderedNodes;
|
---|
1755 | }
|
---|
1756 | else if (showShadowMap && shadowTraverser)
|
---|
1757 | {
|
---|
1758 | renderedNodes = traverser->GetStats().mNumRenderedNodes + shadowTraverser->GetStats().mNumRenderedNodes;
|
---|
1759 | renderedObjects = traverser->GetStats().mNumRenderedGeometry + shadowTraverser->GetStats().mNumRenderedGeometry;
|
---|
1760 | renderedTriangles = traverser->GetStats().mNumRenderedTriangles + shadowTraverser->GetStats().mNumRenderedTriangles;
|
---|
1761 | }
|
---|
1762 | else
|
---|
1763 | {
|
---|
1764 | renderedTriangles = traverser->GetStats().mNumRenderedTriangles;
|
---|
1765 | renderedObjects = traverser->GetStats().mNumRenderedGeometry;
|
---|
1766 | renderedNodes = traverser->GetStats().mNumRenderedNodes;
|
---|
1767 | }
|
---|
1768 |
|
---|
1769 | traversedNodes = traverser->GetStats().mNumTraversedNodes;
|
---|
1770 | frustumCulledNodes = traverser->GetStats().mNumFrustumCulledNodes;
|
---|
1771 | queryCulledNodes = traverser->GetStats().mNumQueryCulledNodes;
|
---|
1772 | issuedQueries = traverser->GetStats().mNumIssuedQueries;
|
---|
1773 | stateChanges = traverser->GetStats().mNumStateChanges;
|
---|
1774 | numBatches = traverser->GetStats().mNumBatches;
|
---|
1775 | }
|
---|
1776 |
|
---|
1777 |
|
---|
1778 | Begin2D();
|
---|
1779 |
|
---|
1780 | glEnable(GL_BLEND);
|
---|
1781 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
---|
1782 |
|
---|
1783 | if (showHelp)
|
---|
1784 | {
|
---|
1785 | DrawHelpMessage();
|
---|
1786 | }
|
---|
1787 | else
|
---|
1788 | {
|
---|
1789 | if (showOptions)
|
---|
1790 | {
|
---|
1791 | glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
|
---|
1792 | glRecti(5, winHeight - 95, winWidth * 2 / 3 - 5, winHeight - 5);
|
---|
1793 | }
|
---|
1794 |
|
---|
1795 | if (showStatistics)
|
---|
1796 | {
|
---|
1797 | glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
|
---|
1798 | glRecti(5, winHeight - 165, winWidth * 2 / 3 - 5, winHeight - 100);
|
---|
1799 | }
|
---|
1800 |
|
---|
1801 | glEnable(GL_TEXTURE_2D);
|
---|
1802 | myfont.Begin();
|
---|
1803 |
|
---|
1804 | if (showOptions)
|
---|
1805 | {
|
---|
1806 | glColor3f(0.0f, 1.0f, 0.0f);
|
---|
1807 | int i = 0;
|
---|
1808 |
|
---|
1809 | static char *renderMethodStr[] =
|
---|
1810 | {"forward", "depth pass + forward", "deferred shading", "depth pass + deferred"};
|
---|
1811 |
|
---|
1812 | sprintf(msg[i ++], "multiqueries: %d, tight bounds: %d, render queue: %d",
|
---|
1813 | useMultiQueries, useTightBounds, useRenderQueue);
|
---|
1814 |
|
---|
1815 | sprintf(msg[i ++], "render technique: %s, SSAO: %d", renderMethodStr[renderMethod], useAdvancedShading);
|
---|
1816 |
|
---|
1817 | sprintf(msg[i ++], "triangles per virtual leaf: %5d", trianglesPerVirtualLeaf);
|
---|
1818 |
|
---|
1819 | sprintf(msg[i ++], "assumed visible frames: %4d, max batch size: %4d",
|
---|
1820 | assumedVisibleFrames, maxBatchSize);
|
---|
1821 |
|
---|
1822 | for (int j = 0; j < 4; ++ j)
|
---|
1823 | myfont.DrawString(msg[j], 10.0f, winHeight - 5 - j * 20);
|
---|
1824 | }
|
---|
1825 |
|
---|
1826 | if (showStatistics)
|
---|
1827 | {
|
---|
1828 | glColor3f(1.0f, 1.0f, 0.0f);
|
---|
1829 |
|
---|
1830 | string objStr, totalObjStr;
|
---|
1831 | string triStr, totalTriStr;
|
---|
1832 |
|
---|
1833 | int len = 10;
|
---|
1834 | CalcDecimalPoint(objStr, renderedObjects, len);
|
---|
1835 | CalcDecimalPoint(totalObjStr, (int)resourceManager->GetNumEntities(), len);
|
---|
1836 |
|
---|
1837 | CalcDecimalPoint(triStr, renderedTriangles, len);
|
---|
1838 | CalcDecimalPoint(totalTriStr, bvh->GetBvhStats().mTriangles, len);
|
---|
1839 |
|
---|
1840 | int i = 4;
|
---|
1841 |
|
---|
1842 | if (0)
|
---|
1843 | {
|
---|
1844 | sprintf(msg[i ++], "rendered: %s of %s objects, %s of %s triangles",
|
---|
1845 | objStr.c_str(), totalObjStr.c_str(), triStr.c_str(), totalTriStr.c_str());
|
---|
1846 | }
|
---|
1847 | else
|
---|
1848 | {
|
---|
1849 | sprintf(msg[i ++], "rendered: %6d of %6d nodes, %s of %s triangles",
|
---|
1850 | renderedNodes, bvh->GetNumVirtualNodes(), triStr.c_str(), totalTriStr.c_str());
|
---|
1851 | }
|
---|
1852 |
|
---|
1853 | sprintf(msg[i ++], "traversed: %5d, frustum culled: %5d, query culled: %5d",
|
---|
1854 | traversedNodes, frustumCulledNodes, queryCulledNodes);
|
---|
1855 |
|
---|
1856 | sprintf(msg[i ++], "issued queries: %5d, state changes: %5d, render batches: %5d",
|
---|
1857 | issuedQueries, stateChanges, numBatches);
|
---|
1858 |
|
---|
1859 | for (int j = 4; j < 7; ++ j)
|
---|
1860 | myfont.DrawString(msg[j], 10.0f, winHeight - (j + 1) * 20);
|
---|
1861 | }
|
---|
1862 |
|
---|
1863 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
1864 | static char *alg_str[] = {"Frustum Cull", "Stop and Wait", "CHC", "CHC ++"};
|
---|
1865 |
|
---|
1866 | if (!showAlgorithmTime)
|
---|
1867 | sprintf(msg[7], "%s: %6.1f fps", alg_str[renderMode], fps);
|
---|
1868 | else
|
---|
1869 | sprintf(msg[7], "%s: %6.1f ms", alg_str[renderMode], rTime);
|
---|
1870 |
|
---|
1871 | myfont.DrawString(msg[7], 1.3f, 690.0f, 760.0f);//, top_color, bottom_color);
|
---|
1872 |
|
---|
1873 | //sprintf(msg[8], "algorithm time: %6.1f ms", rTime);
|
---|
1874 | //myfont.DrawString(msg[8], 720.0f, 730.0f);
|
---|
1875 | }
|
---|
1876 |
|
---|
1877 | glDisable(GL_BLEND);
|
---|
1878 | glDisable(GL_TEXTURE_2D);
|
---|
1879 |
|
---|
1880 | End2D();
|
---|
1881 | }
|
---|
1882 |
|
---|
1883 |
|
---|
1884 | void RenderSky()
|
---|
1885 | {
|
---|
1886 | if ((renderMethod == RENDER_DEFERRED) || (renderMethod == RENDER_DEPTH_PASS_DEFERRED))
|
---|
1887 | state.SetRenderTechnique(DEFERRED);
|
---|
1888 |
|
---|
1889 | const bool useToneMapping =
|
---|
1890 | ((renderMethod == RENDER_DEPTH_PASS_DEFERRED) ||
|
---|
1891 | (renderMethod == RENDER_DEFERRED)) && useHDR;
|
---|
1892 |
|
---|
1893 | preetham->RenderSkyDome(-light->GetDirection(), camera, &state, !useToneMapping);
|
---|
1894 | /// once again reset the state
|
---|
1895 | state.Reset();
|
---|
1896 | }
|
---|
1897 |
|
---|
1898 |
|
---|
1899 | // render visible object from depth pass
|
---|
1900 | void RenderVisibleObjects()
|
---|
1901 | {
|
---|
1902 | if (renderMethod == RENDER_DEPTH_PASS_DEFERRED)
|
---|
1903 | {
|
---|
1904 | if (showShadowMap && !renderLightView)
|
---|
1905 | {
|
---|
1906 | // usethe maximal visible distance to focus shadow map
|
---|
1907 | float maxVisibleDist = min(camera->GetFar(), traverser->GetMaxVisibleDistance());
|
---|
1908 | RenderShadowMap(maxVisibleDist);
|
---|
1909 | }
|
---|
1910 |
|
---|
1911 | //glViewport(0, 0, texWidth, texHeight);
|
---|
1912 | // initialize deferred rendering
|
---|
1913 | InitDeferredRendering();
|
---|
1914 | }
|
---|
1915 | else
|
---|
1916 | {
|
---|
1917 | state.SetRenderTechnique(FORWARD);
|
---|
1918 | }
|
---|
1919 |
|
---|
1920 | /////////////////
|
---|
1921 | //-- reset gl state before the final visible objects pass
|
---|
1922 |
|
---|
1923 | state.Reset();
|
---|
1924 |
|
---|
1925 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
1926 | /// switch back to smooth shading
|
---|
1927 | glShadeModel(GL_SMOOTH);
|
---|
1928 | /// reset alpha to coverage flag
|
---|
1929 | state.SetUseAlphaToCoverage(true);
|
---|
1930 | // clear color
|
---|
1931 | glClear(GL_COLOR_BUFFER_BIT);
|
---|
1932 |
|
---|
1933 | // draw only objects having exactly the same depth as the current sample
|
---|
1934 | glDepthFunc(GL_EQUAL);
|
---|
1935 |
|
---|
1936 | //cout << "visible: " << (int)traverser->GetVisibleObjects().size() << endl;
|
---|
1937 |
|
---|
1938 | SceneEntityContainer::const_iterator sit,
|
---|
1939 | sit_end = traverser->GetVisibleObjects().end();
|
---|
1940 |
|
---|
1941 | for (sit = traverser->GetVisibleObjects().begin(); sit != sit_end; ++ sit)
|
---|
1942 | {
|
---|
1943 | renderQueue->Enqueue(*sit);
|
---|
1944 | }
|
---|
1945 | /// now render out everything in one giant pass
|
---|
1946 | renderQueue->Apply();
|
---|
1947 |
|
---|
1948 | // switch back to standard depth func
|
---|
1949 | glDepthFunc(GL_LESS);
|
---|
1950 | state.Reset();
|
---|
1951 |
|
---|
1952 | PrintGLerror("visibleobjects");
|
---|
1953 | }
|
---|
1954 |
|
---|
1955 |
|
---|
1956 | void PlaceViewer(const Vector3 &oldPos)
|
---|
1957 | {
|
---|
1958 | if (!sceneQuery)
|
---|
1959 | sceneQuery = new SceneQuery(bvh->GetBox(), traverser);
|
---|
1960 |
|
---|
1961 | Vector3 playerPos = camera->GetPosition();
|
---|
1962 | bool validIntersect = sceneQuery->CalcIntersection(playerPos);
|
---|
1963 |
|
---|
1964 | if (validIntersect)
|
---|
1965 | // && ((playerPos.z - oldPos.z) < bvh->GetBox().Size(2) * 1e-1f))
|
---|
1966 | {
|
---|
1967 | camera->SetPosition(playerPos);
|
---|
1968 | }
|
---|
1969 | }
|
---|
1970 |
|
---|
1971 |
|
---|
1972 | void RenderShadowMap(float newfar)
|
---|
1973 | {
|
---|
1974 | glDisableClientState(GL_NORMAL_ARRAY);
|
---|
1975 | state.SetRenderTechnique(DEPTH_PASS);
|
---|
1976 |
|
---|
1977 | // hack: disable cull face because of alpha textured balconies
|
---|
1978 | glDisable(GL_CULL_FACE);
|
---|
1979 | state.LockCullFaceEnabled(true);
|
---|
1980 |
|
---|
1981 | /// don't use alpha to coverage for the depth map (problems with fbo rendering)
|
---|
1982 | state.SetUseAlphaToCoverage(false);
|
---|
1983 |
|
---|
1984 | // change CHC++ set of state variables
|
---|
1985 | // this must be done for each change of camera because
|
---|
1986 | // otherwise the temporal coherency is broken
|
---|
1987 | BvhNode::SetCurrentState(LIGHT_PASS);
|
---|
1988 | // hack: temporarily change camera far plane
|
---|
1989 | camera->SetFar(newfar);
|
---|
1990 | // the scene is rendered withouth any shading
|
---|
1991 | shadowMap->ComputeShadowMap(shadowTraverser, viewProjMat);
|
---|
1992 |
|
---|
1993 | glEnable(GL_CULL_FACE);
|
---|
1994 | camera->SetFar(farDist);
|
---|
1995 |
|
---|
1996 | state.SetUseAlphaToCoverage(true);
|
---|
1997 | state.LockCullFaceEnabled(false);
|
---|
1998 |
|
---|
1999 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
2000 | // change back state
|
---|
2001 | BvhNode::SetCurrentState(CAMERA_PASS);
|
---|
2002 | }
|
---|
2003 |
|
---|
2004 |
|
---|
2005 | /** Toach each material once in order to preload the render queue
|
---|
2006 | bucket id of each material
|
---|
2007 | */
|
---|
2008 | void PrepareRenderQueue()
|
---|
2009 | {
|
---|
2010 | for (int i = 0; i < 3; ++ i)
|
---|
2011 | {
|
---|
2012 | state.SetRenderTechnique(i);
|
---|
2013 |
|
---|
2014 | // fill all shapes into the render queue once so we can establish the buckets
|
---|
2015 | ShapeContainer::const_iterator sit, sit_end = (*resourceManager->GetShapes()).end();
|
---|
2016 |
|
---|
2017 | for (sit = (*resourceManager->GetShapes()).begin(); sit != sit_end; ++ sit)
|
---|
2018 | {
|
---|
2019 | static Transform3 dummy(IdentityMatrix());
|
---|
2020 | renderQueue->Enqueue(*sit, &dummy);
|
---|
2021 | }
|
---|
2022 |
|
---|
2023 | // just clear queue again
|
---|
2024 | renderQueue->Clear();
|
---|
2025 | }
|
---|
2026 | }
|
---|
2027 |
|
---|
2028 |
|
---|
2029 | void LoadModel(const string &model, SceneEntityContainer &entities)
|
---|
2030 | {
|
---|
2031 | const string filename = string(model_path + model);
|
---|
2032 |
|
---|
2033 | if (resourceManager->Load(filename, entities))
|
---|
2034 | cout << "model " << filename << " loaded" << endl;
|
---|
2035 | else
|
---|
2036 | {
|
---|
2037 | cerr << "loading model " << filename << " failed" << endl;
|
---|
2038 | CleanUp();
|
---|
2039 | exit(0);
|
---|
2040 | }
|
---|
2041 | }
|
---|
2042 |
|
---|
2043 |
|
---|
2044 | void CreateAnimation()
|
---|
2045 | {
|
---|
2046 | const float radius = 5.0f;
|
---|
2047 | const Vector3 center(480.398f, 268.364f, 181.3);
|
---|
2048 |
|
---|
2049 | VertexArray vertices;
|
---|
2050 |
|
---|
2051 | /*for (int i = 0; i < 360; ++ i)
|
---|
2052 | {
|
---|
2053 | float angle = (float)i * M_PI / 180.0f;
|
---|
2054 |
|
---|
2055 | Vector3 offs = Vector3(cos(angle) * radius, sin(angle) * radius, 0);
|
---|
2056 | vertices.push_back(center + offs);
|
---|
2057 | }*/
|
---|
2058 |
|
---|
2059 | for (int i = 0; i < 5; ++ i)
|
---|
2060 | {
|
---|
2061 | Vector3 offs = Vector3(i, 0, 0);
|
---|
2062 | vertices.push_back(center + offs);
|
---|
2063 | }
|
---|
2064 |
|
---|
2065 |
|
---|
2066 | for (int i = 0; i < 5; ++ i)
|
---|
2067 | {
|
---|
2068 | Vector3 offs = Vector3(4 -i, 0, 0);
|
---|
2069 | vertices.push_back(center + offs);
|
---|
2070 | }
|
---|
2071 |
|
---|
2072 | motionPath = new MotionPath(vertices);
|
---|
2073 | } |
---|