[2642] | 1 | // occquery.cpp : Defines the entry point for the console application.
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| 2 | //
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[2818] | 3 | #include "glInterface.h"
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[2746] | 4 | #include <math.h>
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| 5 | #include <time.h>
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[2756] | 6 | #include "common.h"
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[2642] | 7 | #include "RenderTraverser.h"
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[2756] | 8 | #include "SceneEntity.h"
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| 9 | #include "Vector3.h"
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| 10 | #include "Matrix4x4.h"
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[2795] | 11 | #include "ResourceManager.h"
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[2756] | 12 | #include "Bvh.h"
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| 13 | #include "Camera.h"
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| 14 | #include "Geometry.h"
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[2760] | 15 | #include "BvhLoader.h"
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| 16 | #include "FrustumCullingTraverser.h"
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[2763] | 17 | #include "StopAndWaitTraverser.h"
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[2764] | 18 | #include "CHCTraverser.h"
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[2767] | 19 | #include "CHCPlusPlusTraverser.h"
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| 20 | #include "Visualization.h"
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[2769] | 21 | #include "RenderState.h"
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[2795] | 22 | #include "Timer/PerfTimer.h"
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[2796] | 23 | #include "SceneQuery.h"
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[2801] | 24 | #include "RenderQueue.h"
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[2819] | 25 | #include "Material.h"
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[2808] | 26 | #include <Cg/cg.h>
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| 27 | #include <Cg/cgGL.h>
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[2826] | 28 | #include "glfont2.h"
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[2827] | 29 | #include "PerformanceGraph.h"
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[2828] | 30 | #include "Environment.h"
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[2642] | 31 |
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| 32 |
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[2756] | 33 | using namespace std;
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[2776] | 34 | using namespace CHCDemoEngine;
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[2642] | 35 |
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| 36 |
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[2828] | 37 | static Environment env;
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| 38 |
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| 39 |
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| 40 | /////////////
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| 41 | //-- textures
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[2809] | 42 | GLuint fbo;
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[2756] | 43 |
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[2810] | 44 | GLuint depthBuffer;
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[2809] | 45 |
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[2810] | 46 | GLuint positionsBuffer;
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| 47 | GLuint colorsBuffer;
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| 48 | GLuint normalsBuffer;
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[2809] | 49 |
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[2810] | 50 | GLuint positionsTex;
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| 51 | GLuint colorsTex;
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| 52 | GLuint normalsTex;
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[2809] | 53 |
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[2810] | 54 | GLuint noiseTex;
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| 55 |
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[2826] | 56 | GLuint fontTex;
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[2810] | 57 |
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[2756] | 58 | /// the renderable scene geometry
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| 59 | SceneEntityContainer sceneEntities;
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| 60 | // traverses and renders the hierarchy
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[2767] | 61 | RenderTraverser *traverser = NULL;
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[2756] | 62 | /// the hierarchy
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[2767] | 63 | Bvh *bvh = NULL;
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[2793] | 64 | /// handles scene loading
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[2795] | 65 | ResourceManager *loader = NULL;
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[2756] | 66 | /// the scene camera
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[2767] | 67 | Camera *camera = NULL;
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[2795] | 68 | /// the scene camera
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| 69 | Camera *visCamera = NULL;
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[2767] | 70 | /// the visualization
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| 71 | Visualization *visualization = NULL;
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[2760] | 72 | /// the current render state
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| 73 | RenderState state;
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[2764] | 74 | /// the rendering algorithm
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[2795] | 75 | int renderMode = RenderTraverser::CHCPLUSPLUS;
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[2756] | 76 | // eye near plane distance
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[2822] | 77 | float nearDist = 0.2f;
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[2771] | 78 | /// the pixel threshold where a node is still considered invisible
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| 79 | int threshold;
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[2764] | 80 |
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[2795] | 81 | float fov = 50.0f;
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| 82 |
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[2776] | 83 | int assumedVisibleFrames = 10;
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| 84 | int maxBatchSize = 50;
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[2771] | 85 |
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[2800] | 86 | int trianglesPerVirtualLeaf = INITIAL_TRIANGLES_PER_VIRTUAL_LEAVES;
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[2767] | 87 |
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[2796] | 88 | SceneQuery *sceneQuery = NULL;
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[2801] | 89 | RenderQueue *renderQueue = NULL;
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[2796] | 90 |
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[2809] | 91 | /// these values get scaled with the frame rate
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[2828] | 92 | static float keyForwardMotion = 30.0f;
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| 93 | static float keyRotation = 1.5f;
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[2801] | 94 |
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[2826] | 95 | /// elapsed time in milliseconds
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| 96 | double elapsedTime = 1000.0f;
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| 97 | double algTime = 1000.0f;
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[2795] | 98 |
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[2809] | 99 | static int winWidth = 1024;
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[2813] | 100 | static int winHeight = 768;
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[2809] | 101 | static float winAspectRatio = 1.0f;
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[2642] | 102 |
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[2776] | 103 | double accumulatedTime = 1000;
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[2770] | 104 | float fps = 1e3f;
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| 105 |
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[2809] | 106 | float myfar = 0;
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| 107 |
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[2826] | 108 | glfont::GLFont myfont;
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| 109 |
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[2809] | 110 | // rendertexture
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[2828] | 111 | static int texWidth = 1024;
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| 112 | static int texHeight = 768;
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| 113 | //static int texWidth = 2048;
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| 114 | //static int texHeight = 2048;
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[2809] | 115 |
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[2770] | 116 | int renderedObjects = 0;
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[2773] | 117 | int renderedNodes = 0;
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| 118 | int renderedTriangles = 0;
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| 119 |
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[2770] | 120 | int issuedQueries = 0;
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| 121 | int traversedNodes = 0;
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| 122 | int frustumCulledNodes = 0;
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| 123 | int queryCulledNodes = 0;
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| 124 | int stateChanges = 0;
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[2800] | 125 | int numBatches = 0;
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[2770] | 126 |
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[2642] | 127 | bool showHelp = false;
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[2826] | 128 | bool showStatistics = false;
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| 129 | bool showOptions = false;
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[2642] | 130 | bool showBoundingVolumes = false;
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| 131 | bool visMode = false;
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| 132 |
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[2792] | 133 | // mouse navigation state
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[2809] | 134 | int xEyeBegin = 0;
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| 135 | int yEyeBegin = 0;
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| 136 | int yMotionBegin = 0;
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| 137 | int verticalMotionBegin = 0;
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| 138 | int horizontalMotionBegin = 0;
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[2642] | 139 |
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[2770] | 140 | bool useOptimization = false;
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[2786] | 141 | bool useTightBounds = true;
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[2795] | 142 | bool useRenderQueue = true;
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[2786] | 143 | bool useMultiQueries = true;
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[2800] | 144 | bool flyMode = true;
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| 145 |
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[2795] | 146 | SceneEntityContainer skyGeometry;
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| 147 |
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[2792] | 148 | bool leftKeyPressed = false;
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| 149 | bool rightKeyPressed = false;
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| 150 | bool upKeyPressed = false;
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| 151 | bool downKeyPressed = false;
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[2794] | 152 | bool nineKeyPressed = false;
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| 153 | bool eightKeyPressed = false;
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[2787] | 154 |
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[2821] | 155 | bool useSsao = false;
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| 156 |
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[2826] | 157 | bool showAlgorithmTime = false;
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| 158 |
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[2820] | 159 | GLubyte *randomNormals = NULL;
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[2809] | 160 |
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[2819] | 161 | PerfTimer frameTimer, algTimer;
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| 162 |
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[2825] | 163 | int renderType = RenderState::FIXED;
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[2820] | 164 |
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[2827] | 165 | PerformanceGraph *perfGraph = NULL;
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[2825] | 166 |
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[2828] | 167 | bool useFullScreen = false;
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[2827] | 168 |
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[2828] | 169 |
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| 170 | // ssao number of samples
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[2826] | 171 | #define NUM_SAMPLES 8
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[2820] | 172 |
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[2828] | 173 | // ssao random spherical samples
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[2820] | 174 | static float samples[NUM_SAMPLES * 2];
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| 175 |
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| 176 |
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[2809] | 177 | // function forward declarations
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[2759] | 178 | void InitExtensions();
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[2756] | 179 | void DisplayVisualization();
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[2759] | 180 | void InitGLstate();
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[2809] | 181 | void InitRenderTexture();
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| 182 | void InitCg();
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[2759] | 183 | void CleanUp();
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| 184 | void SetupEyeView();
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| 185 | void UpdateEyeMtx();
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| 186 | void SetupLighting();
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[2764] | 187 | void DisplayStats();
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[2769] | 188 | void Output(int x, int y, const char *string);
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[2786] | 189 | void DrawHelpMessage();
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[2796] | 190 | void RenderSky();
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[2801] | 191 | void RenderVisibleObjects();
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[2756] | 192 |
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[2792] | 193 | void Begin2D();
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| 194 | void End2D();
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| 195 | void KeyBoard(unsigned char c, int x, int y);
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| 196 | void DrawStatistics();
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| 197 | void Display();
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| 198 | void Special(int c, int x, int y);
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| 199 | void KeyUp(unsigned char c, int x, int y);
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| 200 | void SpecialKeyUp(int c, int x, int y);
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| 201 | void Reshape(int w, int h);
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| 202 | void Mouse(int button, int state, int x, int y);
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| 203 | void LeftMotion(int x, int y);
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| 204 | void RightMotion(int x, int y);
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| 205 | void MiddleMotion(int x, int y);
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| 206 | void CalcDecimalPoint(string &str, int d);
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[2764] | 207 | void ResetTraverser();
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[2642] | 208 |
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[2792] | 209 | void KeyHorizontalMotion(float shift);
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[2794] | 210 | void KeyVerticalMotion(float shift);
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[2642] | 211 |
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[2801] | 212 | void PlaceViewer(const Vector3 &oldPos);
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[2809] | 213 | void DisplayRenderTexture();
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[2642] | 214 |
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[2801] | 215 |
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[2826] | 216 | inline float KeyRotationAngle() { return keyRotation * elapsedTime * 1e-3f; }
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| 217 | inline float KeyShift() { return keyForwardMotion * elapsedTime * 1e-3f; }
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[2792] | 218 |
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[2809] | 219 | void InitFBO();
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[2795] | 220 |
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[2809] | 221 | void GenerateSamples();
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| 222 |
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[2810] | 223 | void CreateNoiseTex2D();
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| 224 |
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[2809] | 225 | void ComputeViewVectors(Vector3 &tl, Vector3 &tr, Vector3 &bl, Vector3 &br);
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| 226 |
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[2820] | 227 | void GenerateSamples();
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| 228 |
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| 229 |
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[2810] | 230 | GLenum mrt[] = {GL_COLOR_ATTACHMENT0_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_COLOR_ATTACHMENT2_EXT};
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[2809] | 231 |
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| 232 |
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[2810] | 233 | /////////
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| 234 | //-- cg stuff
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| 235 |
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[2808] | 236 | static CGcontext sCgContext = NULL;
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[2810] | 237 | static CGprogram sCgMrtVertexProgram = NULL;
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[2821] | 238 | static CGprogram sCgSsaoProgram = NULL;
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| 239 | static CGprogram sCgDeferredProgram = NULL;
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[2795] | 240 |
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[2810] | 241 | static CGparameter sColorsTexParam;
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| 242 | static CGparameter sPositionsTexParam;
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| 243 | static CGparameter sNormalsTexParam;
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[2821] | 244 | //static CGparameter sNoiseTexParam;
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[2808] | 245 |
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[2821] | 246 | static CGparameter sColorsTexParamSsao;
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| 247 | static CGparameter sPositionsTexParamSsao;
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| 248 | static CGparameter sNormalsTexParamSsao;
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| 249 | static CGparameter sNoiseTexParamSsao;
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| 250 |
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[2818] | 251 | static CGparameter sModelViewProjMatrixParam;
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| 252 | //static CGparameter sModelMatrixParam;
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[2809] | 253 | static CGparameter sMaxDepthParam;
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[2819] | 254 | static CGparameter sMaxDepthParamTex;
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[2808] | 255 |
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[2821] | 256 | //static CGparameter sSamplesParam;
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| 257 | static CGparameter sSamplesParamSsao;
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[2809] | 258 |
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| 259 |
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[2820] | 260 |
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[2809] | 261 | static void cgErrorCallback()
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| 262 | {
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| 263 | CGerror lastError = cgGetError();
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| 264 |
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| 265 | if(lastError)
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| 266 | {
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| 267 | printf("%s\n\n", cgGetErrorString(lastError));
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| 268 | printf("%s\n", cgGetLastListing(sCgContext));
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| 269 | printf("Cg error, exiting...\n");
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| 270 |
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| 271 | exit(0);
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| 272 | }
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| 273 | }
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| 274 |
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| 275 |
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| 276 | static void PrintGLerror(char *msg)
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| 277 | {
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| 278 | GLenum errCode;
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| 279 | const GLubyte *errStr;
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| 280 |
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| 281 | if ((errCode = glGetError()) != GL_NO_ERROR)
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| 282 | {
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| 283 | errStr = gluErrorString(errCode);
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| 284 | fprintf(stderr,"OpenGL ERROR: %s: %s\n", errStr, msg);
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| 285 | }
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| 286 | }
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| 287 |
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| 288 |
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[2642] | 289 | int main(int argc, char* argv[])
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| 290 | {
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[2781] | 291 | int returnCode = 0;
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| 292 |
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[2828] | 293 | env.Read("src/default.env");
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| 294 |
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| 295 | env.GetIntParam(string("assumedVisibleFrames"), assumedVisibleFrames);
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| 296 | env.GetIntParam(string("maxBatchSize"), maxBatchSize);
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| 297 | env.GetIntParam(string("trianglesPerVirtualLeaf"), trianglesPerVirtualLeaf);
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| 298 |
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| 299 | env.GetFloatParam(string("keyForwardMotion"), keyForwardMotion);
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[2829] | 300 | env.GetFloatParam(string("keyRotation"), keyRotation);
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[2828] | 301 |
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| 302 | env.GetIntParam(string("winWidth"), winWidth);
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| 303 | env.GetIntParam(string("winHeight"), winHeight);
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| 304 |
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| 305 | env.GetBoolParam(string("useFullScreen"), useFullScreen);
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| 306 |
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[2829] | 307 | //env.GetIntParam(string("numSssaoSamples"), numSsaoSamples);
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[2828] | 308 |
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[2829] | 309 | Vector3 camPos;
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| 310 | env.GetVectorParam(string("camPosition"), camPos);
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[2828] | 311 |
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[2829] | 312 | cout << "read values: " << endl;
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| 313 | cout << "assumedVisibleFrames: " << assumedVisibleFrames << endl;
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| 314 | cout << "maxBatchSize: " << maxBatchSize << endl;
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| 315 | cout << "trianglesPerVirtualLeaf: " << trianglesPerVirtualLeaf << endl;
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| 316 |
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| 317 | cout << "keyForwardMotion: " << keyForwardMotion << endl;
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| 318 | cout << "keyRotation: " << keyRotation << endl;
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| 319 | cout << "winWidth: " << winWidth << endl;
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| 320 | cout << "winHeight: " << winHeight << endl;
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| 321 | cout << "useFullScreen: " << useFullScreen << endl;
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| 322 | cout << "camPosition: " << camPos << endl;
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| 323 |
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| 324 |
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[2828] | 325 | ///////////////////////////
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| 326 |
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[2795] | 327 | camera = new Camera(winWidth, winHeight, fov);
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| 328 | camera->SetNear(nearDist);
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[2806] | 329 |
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[2829] | 330 | camera->Pitch(-M_PI * 0.5);
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| 331 | camera->SetPosition(camPos);
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| 332 |
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[2806] | 333 | visCamera = new Camera(winWidth, winHeight, fov);
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[2781] | 334 |
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[2796] | 335 | visCamera->SetNear(0.0f);
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| 336 | visCamera->Yaw(.5 * M_PI);
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[2781] | 337 |
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[2802] | 338 | renderQueue = new RenderQueue(&state, camera);
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[2801] | 339 |
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[2760] | 340 | glutInitWindowSize(winWidth, winHeight);
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[2756] | 341 | glutInit(&argc, argv);
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[2642] | 342 | glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
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[2756] | 343 |
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[2828] | 344 | if (!useFullScreen)
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| 345 | glutCreateWindow("FriendlyCulling");
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| 346 | else
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| 347 | {
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| 348 | glutGameModeString( "1024x768:32@75" );
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| 349 | glutEnterGameMode();
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| 350 | }
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| 351 |
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[2792] | 352 | glutDisplayFunc(Display);
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| 353 | glutKeyboardFunc(KeyBoard);
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| 354 | glutSpecialFunc(Special);
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| 355 | glutReshapeFunc(Reshape);
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| 356 | glutMouseFunc(Mouse);
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| 357 | glutIdleFunc(Display);
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| 358 | glutKeyboardUpFunc(KeyUp);
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| 359 | glutSpecialUpFunc(SpecialKeyUp);
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| 360 | glutIgnoreKeyRepeat(true);
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| 361 |
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[2829] | 362 | // initialise gl graphics
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| 363 |
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[2756] | 364 | InitExtensions();
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| 365 | InitGLstate();
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[2810] | 366 |
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[2809] | 367 | InitFBO();
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[2810] | 368 |
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[2792] | 369 | LeftMotion(0, 0);
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| 370 | MiddleMotion(0, 0);
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[2756] | 371 |
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[2829] | 372 | perfGraph = new PerformanceGraph(1000);
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[2756] | 373 |
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[2795] | 374 | loader = new ResourceManager();
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[2793] | 375 |
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[2784] | 376 | //const string filename("data/city/model/city.dem");
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| 377 | const string filename = string(model_path + "city.dem");
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[2756] | 378 |
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[2793] | 379 | if (loader->Load(filename, sceneEntities))
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[2756] | 380 | cout << "scene " << filename << " loaded" << endl;
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| 381 | else
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[2784] | 382 | {
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[2756] | 383 | cerr << "loading scene " << filename << " failed" << endl;
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[2792] | 384 | CleanUp();
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[2784] | 385 | exit(0);
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| 386 | }
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[2756] | 387 |
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[2795] | 388 | SceneEntityContainer dummy;
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| 389 |
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| 390 | const string envname = string(model_path + "env.dem");
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| 391 |
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| 392 | if (loader->Load(envname, skyGeometry))
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| 393 | cout << "sky box " << filename << " loaded" << endl;
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| 394 | else
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| 395 | {
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| 396 | cerr << "loading sky box " << filename << " failed" << endl;
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| 397 | CleanUp();
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| 398 | exit(0);
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| 399 | }
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| 400 |
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[2784] | 401 | const string bvh_filename = string(model_path + "city.bvh");
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[2760] | 402 | BvhLoader bvhLoader;
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[2784] | 403 | bvh = bvhLoader.Load(bvh_filename, sceneEntities);
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[2762] | 404 |
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[2784] | 405 | if (!bvh)
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| 406 | {
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| 407 | cerr << "loading bvh " << bvh_filename << " failed" << endl;
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[2792] | 408 | CleanUp();
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[2784] | 409 | exit(0);
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| 410 | }
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| 411 |
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[2829] | 412 | // set far plane based on scene extent
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| 413 | myfar = 10.0f * Magnitude(bvh->GetBox().Diagonal());
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| 414 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
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| 415 |
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| 416 | bvh->SetCamera(camera);
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| 417 |
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[2809] | 418 | InitCg();
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[2806] | 419 |
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[2825] | 420 | // create noise texture for ssao
|
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| 421 | CreateNoiseTex2D();
|
---|
| 422 |
|
---|
| 423 | // init render traverser
|
---|
[2764] | 424 | ResetTraverser();
|
---|
[2756] | 425 |
|
---|
[2642] | 426 |
|
---|
[2787] | 427 | visualization = new Visualization(bvh, camera, NULL, &state);
|
---|
| 428 |
|
---|
[2825] | 429 | sceneQuery = new SceneQuery(bvh->GetBox(), traverser);
|
---|
[2796] | 430 |
|
---|
[2800] | 431 |
|
---|
[2642] | 432 | glutMainLoop();
|
---|
| 433 |
|
---|
| 434 | // clean up
|
---|
[2756] | 435 | CleanUp();
|
---|
| 436 |
|
---|
[2642] | 437 | return 0;
|
---|
| 438 | }
|
---|
| 439 |
|
---|
[2756] | 440 |
|
---|
[2809] | 441 | void InitCg(void)
|
---|
| 442 | {
|
---|
| 443 | GenerateSamples();
|
---|
| 444 |
|
---|
| 445 | // Setup Cg
|
---|
| 446 | cgSetErrorCallback(cgErrorCallback);
|
---|
| 447 |
|
---|
| 448 | // Create cgContext.
|
---|
| 449 | sCgContext = cgCreateContext();
|
---|
| 450 |
|
---|
| 451 | // get the best profile for this hardware
|
---|
[2818] | 452 | RenderState::sCgFragmentProfile = cgGLGetLatestProfile(CG_GL_FRAGMENT);
|
---|
[2809] | 453 | //assert(sCgFragmentProfile != CG_PROFILE_UNKNOWN);
|
---|
[2818] | 454 | cgGLSetOptimalOptions(RenderState::sCgFragmentProfile);
|
---|
[2809] | 455 |
|
---|
[2818] | 456 | RenderState::sCgVertexProfile = cgGLGetLatestProfile(CG_GL_VERTEX);
|
---|
| 457 | cgGLSetOptimalOptions(RenderState::sCgVertexProfile);
|
---|
[2809] | 458 |
|
---|
[2810] | 459 | sCgMrtVertexProgram =
|
---|
[2809] | 460 | cgCreateProgramFromFile(sCgContext,
|
---|
| 461 | CG_SOURCE,
|
---|
[2810] | 462 | "src/shaders/mrt.cg",
|
---|
[2818] | 463 | RenderState::sCgVertexProfile,
|
---|
[2810] | 464 | "vtx",
|
---|
[2809] | 465 | NULL);
|
---|
| 466 |
|
---|
[2821] | 467 | if (sCgMrtVertexProgram != NULL)
|
---|
[2809] | 468 | {
|
---|
[2810] | 469 | cgGLLoadProgram(sCgMrtVertexProgram);
|
---|
[2818] | 470 |
|
---|
| 471 | SceneEntity::sModelMatrixParam = cgGetNamedParameter(sCgMrtVertexProgram, "ModelMatrix");
|
---|
| 472 | sModelViewProjMatrixParam = cgGetNamedParameter(sCgMrtVertexProgram, "ModelViewProj");
|
---|
[2809] | 473 | }
|
---|
| 474 |
|
---|
[2819] | 475 | RenderState::sCgMrtFragmentTexProgram =
|
---|
[2809] | 476 | cgCreateProgramFromFile(sCgContext,
|
---|
| 477 | CG_SOURCE,
|
---|
[2810] | 478 | "src/shaders/mrt.cg",
|
---|
[2818] | 479 | RenderState::sCgFragmentProfile,
|
---|
[2819] | 480 | "fragtex",
|
---|
| 481 | NULL);
|
---|
| 482 |
|
---|
| 483 | if (RenderState::sCgMrtFragmentTexProgram != NULL)
|
---|
| 484 | {
|
---|
| 485 | cgGLLoadProgram(RenderState::sCgMrtFragmentTexProgram);
|
---|
| 486 |
|
---|
| 487 | sMaxDepthParamTex = cgGetNamedParameter(RenderState::sCgMrtFragmentTexProgram, "maxDepth");
|
---|
| 488 | Material::sDiffuseTexParam = cgGetNamedParameter(RenderState::sCgMrtFragmentTexProgram, "diffuse");
|
---|
[2822] | 489 | Material::sAmbientTexParam = cgGetNamedParameter(RenderState::sCgMrtFragmentTexProgram, "ambient");
|
---|
[2819] | 490 |
|
---|
| 491 | cgGLSetParameter1f(sMaxDepthParamTex, 10.0f / myfar);
|
---|
| 492 | }
|
---|
| 493 | else
|
---|
| 494 | cerr << "fragment tex program failed to load" << endl;
|
---|
| 495 |
|
---|
| 496 | RenderState::sCgMrtFragmentProgram =
|
---|
| 497 | cgCreateProgramFromFile(sCgContext,
|
---|
| 498 | CG_SOURCE,
|
---|
| 499 | "src/shaders/mrt.cg",
|
---|
| 500 | RenderState::sCgFragmentProfile,
|
---|
[2810] | 501 | "frag",
|
---|
[2809] | 502 | NULL);
|
---|
| 503 |
|
---|
[2819] | 504 | if (RenderState::sCgMrtFragmentProgram != NULL)
|
---|
[2809] | 505 | {
|
---|
[2819] | 506 | cgGLLoadProgram(RenderState::sCgMrtFragmentProgram);
|
---|
[2809] | 507 |
|
---|
[2819] | 508 | sMaxDepthParam = cgGetNamedParameter(RenderState::sCgMrtFragmentProgram, "maxDepth");
|
---|
| 509 | Material::sDiffuseParam = cgGetNamedParameter(RenderState::sCgMrtFragmentProgram, "diffuse");
|
---|
[2822] | 510 | Material::sAmbientParam = cgGetNamedParameter(RenderState::sCgMrtFragmentProgram, "ambient");
|
---|
[2818] | 511 |
|
---|
| 512 | cgGLSetParameter1f(sMaxDepthParam, 10.0f / myfar);
|
---|
[2809] | 513 | }
|
---|
| 514 | else
|
---|
[2819] | 515 | cerr << "fragment program failed to load" << endl;
|
---|
[2809] | 516 |
|
---|
| 517 | PrintGLerror("test");
|
---|
| 518 |
|
---|
| 519 |
|
---|
| 520 | ///////////////
|
---|
| 521 |
|
---|
[2821] | 522 | sCgSsaoProgram =
|
---|
[2809] | 523 | cgCreateProgramFromFile(sCgContext,
|
---|
| 524 | CG_SOURCE,
|
---|
[2810] | 525 | "src/shaders/deferred.cg",
|
---|
[2818] | 526 | RenderState::sCgFragmentProfile,
|
---|
[2821] | 527 | "main_ssao",
|
---|
[2809] | 528 | NULL);
|
---|
| 529 |
|
---|
[2821] | 530 | if (sCgSsaoProgram != NULL)
|
---|
[2809] | 531 | {
|
---|
[2821] | 532 | cgGLLoadProgram(sCgSsaoProgram);
|
---|
[2809] | 533 |
|
---|
| 534 | // we need size of texture for scaling
|
---|
[2821] | 535 | sPositionsTexParamSsao = cgGetNamedParameter(sCgSsaoProgram, "positions");
|
---|
| 536 | sColorsTexParamSsao = cgGetNamedParameter(sCgSsaoProgram, "colors");
|
---|
| 537 | sNormalsTexParamSsao = cgGetNamedParameter(sCgSsaoProgram, "normals");
|
---|
| 538 | sNoiseTexParamSsao = cgGetNamedParameter(sCgSsaoProgram, "noiseTexture");
|
---|
[2825] | 539 | cgGLDisableTextureParameter(sNoiseTexParamSsao);
|
---|
[2820] | 540 |
|
---|
[2821] | 541 | sSamplesParamSsao = cgGetNamedParameter(sCgSsaoProgram, "samples");
|
---|
| 542 | cgGLSetParameterArray2f(sSamplesParamSsao, 0, NUM_SAMPLES, (const float *)samples);
|
---|
[2809] | 543 | }
|
---|
| 544 | else
|
---|
| 545 | cerr << "ssao program failed to load" << endl;
|
---|
| 546 |
|
---|
[2821] | 547 |
|
---|
| 548 | sCgDeferredProgram =
|
---|
| 549 | cgCreateProgramFromFile(sCgContext,
|
---|
| 550 | CG_SOURCE,
|
---|
| 551 | "src/shaders/deferred.cg",
|
---|
| 552 | RenderState::sCgFragmentProfile,
|
---|
| 553 | "main",
|
---|
| 554 | NULL);
|
---|
| 555 |
|
---|
| 556 | if (sCgDeferredProgram != NULL)
|
---|
| 557 | {
|
---|
| 558 | cgGLLoadProgram(sCgDeferredProgram);
|
---|
| 559 |
|
---|
| 560 | // we need size of texture for scaling
|
---|
| 561 | sPositionsTexParam = cgGetNamedParameter(sCgDeferredProgram, "positions");
|
---|
| 562 | sColorsTexParam = cgGetNamedParameter(sCgDeferredProgram, "colors");
|
---|
| 563 | sNormalsTexParam = cgGetNamedParameter(sCgDeferredProgram, "normals");
|
---|
| 564 | }
|
---|
| 565 | else
|
---|
| 566 | cerr << "deferred program failed to load" << endl;
|
---|
| 567 |
|
---|
| 568 |
|
---|
[2809] | 569 | PrintGLerror("init");
|
---|
[2818] | 570 |
|
---|
| 571 | cout << "cg initialised" << endl;
|
---|
[2809] | 572 | }
|
---|
| 573 |
|
---|
| 574 |
|
---|
| 575 | void PrintFBOStatus(GLenum status)
|
---|
| 576 | {
|
---|
| 577 | switch(status)
|
---|
| 578 | {
|
---|
| 579 | case GL_FRAMEBUFFER_COMPLETE_EXT:
|
---|
| 580 | cout << "frame buffer object created successfully" << endl;
|
---|
| 581 | break;
|
---|
| 582 | case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
|
---|
| 583 | cerr << "incomplete attachment" << endl;
|
---|
| 584 | break;
|
---|
| 585 | case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
|
---|
| 586 | cerr << "missing attachment" << endl;
|
---|
| 587 | break;
|
---|
| 588 | case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT:
|
---|
| 589 | cerr << "incomplete dimensions" << endl;
|
---|
| 590 | break;
|
---|
| 591 | case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT:
|
---|
| 592 | cerr << "incomplete formats" << endl;
|
---|
| 593 | break;
|
---|
| 594 | case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
|
---|
| 595 | cerr << "incomplete draw buffer" << endl;
|
---|
| 596 | break;
|
---|
| 597 | case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
|
---|
| 598 | cerr << "incomplete read buffer" << endl;
|
---|
| 599 | break;
|
---|
| 600 | case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
|
---|
| 601 | cerr << "framebuffer unsupported" << endl;
|
---|
| 602 | break;
|
---|
| 603 | default:
|
---|
| 604 | cerr << "unknown status code " << status << endl;
|
---|
| 605 | }
|
---|
| 606 | }
|
---|
| 607 |
|
---|
| 608 |
|
---|
| 609 | void InitFBO()
|
---|
[2810] | 610 | {
|
---|
[2809] | 611 | glGenFramebuffersEXT(1, &fbo);
|
---|
| 612 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
|
---|
| 613 |
|
---|
[2822] | 614 |
|
---|
[2810] | 615 | ////////////
|
---|
| 616 | //-- colors buffer
|
---|
[2809] | 617 |
|
---|
[2810] | 618 | glGenRenderbuffersEXT(1, &colorsBuffer);
|
---|
| 619 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, colorsBuffer);
|
---|
| 620 |
|
---|
[2822] | 621 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA8, texWidth, texHeight);
|
---|
| 622 | int samples = 8;
|
---|
| 623 | //glEnable(GL_MULTISAMPLE_ARB);
|
---|
| 624 | //glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples, GL_RGBA8, texWidth, texHeight);
|
---|
[2810] | 625 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, colorsBuffer);
|
---|
| 626 |
|
---|
| 627 | glGenTextures(1, &colorsTex);
|
---|
| 628 | glBindTexture(GL_TEXTURE_2D, colorsTex);
|
---|
| 629 |
|
---|
[2822] | 630 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, texWidth, texHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
|
---|
[2809] | 631 | glGenerateMipmapEXT(GL_TEXTURE_2D);
|
---|
[2810] | 632 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, colorsTex, 0);
|
---|
[2809] | 633 |
|
---|
| 634 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
---|
| 635 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
---|
| 636 |
|
---|
| 637 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
---|
| 638 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
---|
| 639 |
|
---|
[2822] | 640 |
|
---|
| 641 | //////////
|
---|
| 642 | //-- positions buffer
|
---|
| 643 |
|
---|
[2809] | 644 | PrintFBOStatus(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
|
---|
[2810] | 645 | glGenRenderbuffersEXT(1, &positionsBuffer);
|
---|
| 646 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, positionsBuffer);
|
---|
[2822] | 647 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA32F_ARB, texWidth, texHeight);
|
---|
| 648 |
|
---|
[2810] | 649 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_RENDERBUFFER_EXT, positionsBuffer);
|
---|
[2809] | 650 |
|
---|
[2810] | 651 | glGenTextures(1, &positionsTex);
|
---|
| 652 | glBindTexture(GL_TEXTURE_2D, positionsTex);
|
---|
[2813] | 653 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, texWidth, texHeight, 0, GL_RGBA, GL_FLOAT, NULL);
|
---|
[2817] | 654 | //glGenerateMipmapEXT(GL_TEXTURE_2D);
|
---|
[2810] | 655 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, positionsTex, 0);
|
---|
[2809] | 656 |
|
---|
[2817] | 657 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
| 658 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
[2809] | 659 |
|
---|
[2817] | 660 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
---|
| 661 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
---|
[2810] | 662 |
|
---|
| 663 | PrintFBOStatus(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
|
---|
| 664 |
|
---|
| 665 |
|
---|
| 666 | ////////
|
---|
| 667 | //-- normals buffer
|
---|
| 668 |
|
---|
| 669 | glGenRenderbuffersEXT(1, &normalsBuffer);
|
---|
| 670 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, normalsBuffer);
|
---|
[2822] | 671 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA8, texWidth, texHeight);
|
---|
[2810] | 672 |
|
---|
| 673 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL_RENDERBUFFER_EXT, normalsBuffer);
|
---|
| 674 |
|
---|
| 675 | glGenTextures(1, &normalsTex);
|
---|
| 676 | glBindTexture(GL_TEXTURE_2D, normalsTex);
|
---|
[2822] | 677 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, texWidth, texHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
|
---|
[2817] | 678 | //glGenerateMipmapEXT(GL_TEXTURE_2D);
|
---|
[2810] | 679 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL_TEXTURE_2D, normalsTex, 0);
|
---|
| 680 |
|
---|
[2817] | 681 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
| 682 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
[2810] | 683 |
|
---|
[2809] | 684 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
---|
| 685 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
---|
| 686 |
|
---|
| 687 | PrintFBOStatus(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
|
---|
| 688 |
|
---|
[2810] | 689 |
|
---|
[2809] | 690 | ///////////
|
---|
[2810] | 691 | //-- create depth buffer
|
---|
[2809] | 692 |
|
---|
[2810] | 693 | glGenRenderbuffersEXT(1, &depthBuffer);
|
---|
| 694 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depthBuffer);
|
---|
[2815] | 695 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, texWidth, texHeight);
|
---|
[2810] | 696 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, depthBuffer);
|
---|
[2809] | 697 |
|
---|
| 698 |
|
---|
| 699 | PrintFBOStatus(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
|
---|
| 700 |
|
---|
| 701 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
|
---|
| 702 |
|
---|
[2810] | 703 | PrintGLerror("fbo");
|
---|
[2809] | 704 | }
|
---|
| 705 |
|
---|
| 706 |
|
---|
[2827] | 707 | bool InitFont(void)
|
---|
[2642] | 708 | {
|
---|
[2826] | 709 | glEnable(GL_TEXTURE_2D);
|
---|
| 710 |
|
---|
| 711 | glGenTextures(1, &fontTex);
|
---|
| 712 | glBindTexture(GL_TEXTURE_2D, fontTex);
|
---|
[2829] | 713 | if (!myfont.Create("data/fonts/verdana.glf", fontTex))
|
---|
[2826] | 714 | return false;
|
---|
| 715 |
|
---|
| 716 | glDisable(GL_TEXTURE_2D);
|
---|
[2827] | 717 |
|
---|
[2826] | 718 | return true;
|
---|
| 719 | }
|
---|
| 720 |
|
---|
| 721 |
|
---|
| 722 | void InitGLstate()
|
---|
| 723 | {
|
---|
[2767] | 724 | glClearColor(0.5f, 0.5f, 0.8f, 0.0f);
|
---|
[2642] | 725 |
|
---|
| 726 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
---|
| 727 | glPixelStorei(GL_PACK_ALIGNMENT,1);
|
---|
| 728 |
|
---|
| 729 | glDepthFunc(GL_LESS);
|
---|
[2762] | 730 | glEnable(GL_DEPTH_TEST);
|
---|
[2642] | 731 |
|
---|
[2759] | 732 | SetupLighting();
|
---|
[2642] | 733 |
|
---|
[2760] | 734 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
[2642] | 735 | glShadeModel(GL_SMOOTH);
|
---|
| 736 |
|
---|
| 737 | glMaterialf(GL_FRONT, GL_SHININESS, 64);
|
---|
| 738 | glEnable(GL_NORMALIZE);
|
---|
[2767] | 739 |
|
---|
| 740 | //glEnable(GL_ALPHA_TEST);
|
---|
| 741 | glDisable(GL_ALPHA_TEST);
|
---|
[2801] | 742 | glAlphaFunc(GL_GEQUAL, 0.5f);
|
---|
[2767] | 743 |
|
---|
[2642] | 744 | glFrontFace(GL_CCW);
|
---|
| 745 | glCullFace(GL_BACK);
|
---|
| 746 | glEnable(GL_CULL_FACE);
|
---|
[2756] | 747 | //glDisable(GL_CULL_FACE);
|
---|
[2800] | 748 | glDisable(GL_TEXTURE_2D);
|
---|
[2762] | 749 |
|
---|
[2756] | 750 | GLfloat ambientColor[] = {0.5, 0.5, 0.5, 1.0};
|
---|
| 751 | GLfloat diffuseColor[] = {1.0, 0.0, 0.0, 1.0};
|
---|
[2759] | 752 | GLfloat specularColor[] = {0.0, 0.0, 0.0, 1.0};
|
---|
[2642] | 753 |
|
---|
[2756] | 754 | glMaterialfv(GL_FRONT, GL_AMBIENT, ambientColor);
|
---|
| 755 | glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuseColor);
|
---|
| 756 | glMaterialfv(GL_FRONT, GL_SPECULAR, specularColor);
|
---|
[2801] | 757 |
|
---|
| 758 | glDepthFunc(GL_LESS);
|
---|
[2826] | 759 |
|
---|
[2827] | 760 | if (!InitFont())
|
---|
[2826] | 761 | cerr << "font creation failed" << endl;
|
---|
| 762 | else
|
---|
| 763 | cout << "successfully created font" << endl;
|
---|
[2642] | 764 | }
|
---|
| 765 |
|
---|
| 766 |
|
---|
[2827] | 767 | void DrawHelpMessage()
|
---|
[2826] | 768 | {
|
---|
[2642] | 769 | const char *message[] =
|
---|
| 770 | {
|
---|
| 771 | "Help information",
|
---|
| 772 | "",
|
---|
| 773 | "'F1' - shows/dismisses this message",
|
---|
[2795] | 774 | "'F2' - shows/hides bird eye view",
|
---|
[2790] | 775 | "'F3' - shows/hides bounds (boxes or tight bounds)",
|
---|
[2827] | 776 | "'F4', - shows/hides parameters",
|
---|
| 777 | "'F5' - shows/hides statistics",
|
---|
| 778 | "'F6', - toggles between fly/walkmode",
|
---|
[2826] | 779 | "'F7', - cycles throw render modes",
|
---|
| 780 | "'F8', - enables/disables ambient occlusion (only deferred)",
|
---|
| 781 | "'F9', - shows pure algorithm render time (using glFinish)",
|
---|
[2790] | 782 | "'SPACE' - cycles through occlusion culling algorithms",
|
---|
[2642] | 783 | "",
|
---|
[2827] | 784 | "'MOUSE LEFT' - turn left/right, move forward/backward",
|
---|
| 785 | "'MOUSE RIGHT' - turn left/right, move forward/backward",
|
---|
| 786 | "'MOUSE MIDDLE' - move up/down, left/right",
|
---|
| 787 | "'CURSOR UP/DOWN' - move forward/backward",
|
---|
| 788 | "'CURSOR LEFT/RIGHT' - turn left/right",
|
---|
[2642] | 789 | "",
|
---|
[2827] | 790 | "'-'/'+' - decreases/increases max batch size",
|
---|
| 791 | "'4'/'5' - decreases/increases triangles per virtual bvh leaf (sets bvh depth)",
|
---|
| 792 | "'6'/'7' - decreases/increases assumed visible frames",
|
---|
| 793 | "'8'/'9' - downward/upward motion",
|
---|
[2776] | 794 | "",
|
---|
[2786] | 795 | "'R' - use render queue",
|
---|
[2790] | 796 | "'B' - use tight bounds",
|
---|
| 797 | "'M' - use multiqueries",
|
---|
[2792] | 798 | "'O' - use CHC optimization (geometry queries for leaves)",
|
---|
[2642] | 799 | 0,
|
---|
| 800 | };
|
---|
| 801 |
|
---|
[2756] | 802 |
|
---|
[2827] | 803 | glColor4f(0.0f, 1.0f , 0.0f, 0.2f); // 20% green.
|
---|
[2756] | 804 |
|
---|
[2827] | 805 | glRecti(30, 30, winWidth - 30, winHeight - 30);
|
---|
[2642] | 806 |
|
---|
[2827] | 807 | glEnd();
|
---|
| 808 |
|
---|
[2756] | 809 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
| 810 |
|
---|
[2829] | 811 | glEnable(GL_TEXTURE_2D);
|
---|
[2827] | 812 | myfont.Begin();
|
---|
| 813 |
|
---|
| 814 | int x = 40, y = 30;
|
---|
| 815 |
|
---|
| 816 | for(int i = 0; message[i] != 0; ++ i)
|
---|
[2756] | 817 | {
|
---|
| 818 | if(message[i][0] == '\0')
|
---|
| 819 | {
|
---|
[2786] | 820 | y += 15;
|
---|
[2756] | 821 | }
|
---|
| 822 | else
|
---|
| 823 | {
|
---|
[2827] | 824 | myfont.DrawString(message[i], x, winHeight - y);
|
---|
| 825 | y += 25;
|
---|
[2642] | 826 | }
|
---|
| 827 | }
|
---|
[2829] | 828 | glDisable(GL_TEXTURE_2D);
|
---|
[2642] | 829 | }
|
---|
| 830 |
|
---|
| 831 |
|
---|
[2764] | 832 | void ResetTraverser()
|
---|
| 833 | {
|
---|
| 834 | DEL_PTR(traverser);
|
---|
| 835 |
|
---|
[2771] | 836 | bvh->ResetNodeClassifications();
|
---|
| 837 |
|
---|
[2764] | 838 | switch (renderMode)
|
---|
| 839 | {
|
---|
| 840 | case RenderTraverser::CULL_FRUSTUM:
|
---|
| 841 | traverser = new FrustumCullingTraverser();
|
---|
| 842 | break;
|
---|
| 843 | case RenderTraverser::STOP_AND_WAIT:
|
---|
| 844 | traverser = new StopAndWaitTraverser();
|
---|
| 845 | break;
|
---|
| 846 | case RenderTraverser::CHC:
|
---|
| 847 | traverser = new CHCTraverser();
|
---|
| 848 | break;
|
---|
[2767] | 849 | case RenderTraverser::CHCPLUSPLUS:
|
---|
| 850 | traverser = new CHCPlusPlusTraverser();
|
---|
| 851 | break;
|
---|
| 852 |
|
---|
[2764] | 853 | default:
|
---|
| 854 | traverser = new FrustumCullingTraverser();
|
---|
| 855 | }
|
---|
| 856 |
|
---|
[2767] | 857 | traverser->SetCamera(camera);
|
---|
[2764] | 858 | traverser->SetHierarchy(bvh);
|
---|
[2801] | 859 | traverser->SetRenderQueue(renderQueue);
|
---|
[2764] | 860 | traverser->SetRenderState(&state);
|
---|
[2770] | 861 | traverser->SetUseOptimization(useOptimization);
|
---|
| 862 | traverser->SetUseRenderQueue(useRenderQueue);
|
---|
| 863 | traverser->SetVisibilityThreshold(threshold);
|
---|
[2776] | 864 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
| 865 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
| 866 | traverser->SetUseMultiQueries(useMultiQueries);
|
---|
[2786] | 867 | traverser->SetUseTightBounds(useTightBounds);
|
---|
[2825] | 868 | traverser->SetUseDepthPass(renderType == RenderState::DEPTH_PASS);
|
---|
[2801] | 869 | traverser->SetRenderQueue(renderQueue);
|
---|
[2764] | 870 | }
|
---|
| 871 |
|
---|
| 872 |
|
---|
[2759] | 873 | void SetupLighting()
|
---|
[2642] | 874 | {
|
---|
[2759] | 875 | glEnable(GL_LIGHTING);
|
---|
| 876 | glEnable(GL_LIGHT0);
|
---|
[2825] | 877 | glEnable(GL_LIGHT1);
|
---|
| 878 |
|
---|
[2759] | 879 | GLfloat ambient[] = {0.2, 0.2, 0.2, 1.0};
|
---|
| 880 | GLfloat diffuse[] = {1.0, 1.0, 1.0, 1.0};
|
---|
| 881 | GLfloat specular[] = {1.0, 1.0, 1.0, 1.0};
|
---|
| 882 |
|
---|
[2825] | 883 | GLfloat lmodel_ambient[] = {0.3f, 0.3f, 0.3f, 1.0f};
|
---|
[2759] | 884 |
|
---|
| 885 | glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
|
---|
| 886 | glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
|
---|
| 887 | glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
|
---|
| 888 |
|
---|
| 889 |
|
---|
| 890 | ////////////
|
---|
| 891 | //-- second light
|
---|
| 892 |
|
---|
[2825] | 893 | GLfloat ambient1[] = {0.2, 0.2, 0.2, 1.0};
|
---|
| 894 | GLfloat diffuse1[] = {1.0, 1.0, 1.0, 1.0};
|
---|
| 895 | //GLfloat diffuse1[] = {0.5, 0.5, 0.5, 1.0};
|
---|
| 896 | GLfloat specular1[] = {0.0, 0.0, 0.0, 1.0};
|
---|
[2759] | 897 |
|
---|
| 898 | glLightfv(GL_LIGHT1, GL_AMBIENT, ambient1);
|
---|
| 899 | glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse1);
|
---|
| 900 | glLightfv(GL_LIGHT1, GL_SPECULAR, specular1);
|
---|
[2825] | 901 |
|
---|
[2759] | 902 |
|
---|
[2825] | 903 | //////////////////////////////
|
---|
| 904 |
|
---|
| 905 | GLfloat position[] = {0.8f, -1.0f, 0.7f, 0.0f};
|
---|
| 906 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
| 907 |
|
---|
| 908 | GLfloat position1[] = {-0.5f, 0.5f, 0.4f, 0.0f};
|
---|
[2759] | 909 | glLightfv(GL_LIGHT1, GL_POSITION, position1);
|
---|
| 910 |
|
---|
| 911 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
|
---|
[2801] | 912 | glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
|
---|
[2759] | 913 | glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL_EXT, GL_SINGLE_COLOR_EXT);
|
---|
[2642] | 914 | }
|
---|
| 915 |
|
---|
[2800] | 916 |
|
---|
[2795] | 917 | void SetupEyeView()
|
---|
[2642] | 918 | {
|
---|
[2759] | 919 | glMatrixMode(GL_PROJECTION);
|
---|
| 920 | glLoadIdentity();
|
---|
| 921 |
|
---|
[2809] | 922 | gluPerspective(fov, 1.0f / winAspectRatio, nearDist, myfar);
|
---|
[2759] | 923 |
|
---|
[2756] | 924 | glMatrixMode(GL_MODELVIEW);
|
---|
[2795] | 925 | glLoadIdentity();
|
---|
[2760] | 926 | camera->SetupCameraView();
|
---|
| 927 |
|
---|
[2825] | 928 | GLfloat position[] = {0.8f, -1.0f, 0.7f, 0.0f};
|
---|
[2759] | 929 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
| 930 |
|
---|
[2825] | 931 | GLfloat position1[] = {-0.5f, 0.5f, 0.4f, 0.0f};
|
---|
[2759] | 932 | glLightfv(GL_LIGHT1, GL_POSITION, position1);
|
---|
[2825] | 933 |
|
---|
| 934 |
|
---|
| 935 | if (renderType == RenderState::DEFERRED)
|
---|
| 936 | {
|
---|
| 937 | // set modelview matrix for shaders
|
---|
| 938 | cgGLSetStateMatrixParameter(sModelViewProjMatrixParam,
|
---|
| 939 | CG_GL_MODELVIEW_PROJECTION_MATRIX,
|
---|
| 940 | CG_GL_MATRIX_IDENTITY);
|
---|
| 941 |
|
---|
| 942 | static Matrix4x4 identity = IdentityMatrix();
|
---|
| 943 | cgGLSetMatrixParameterfc(SceneEntity::sModelMatrixParam, (const float *)identity.x);
|
---|
| 944 | }
|
---|
[2642] | 945 | }
|
---|
| 946 |
|
---|
| 947 |
|
---|
[2792] | 948 | void KeyHorizontalMotion(float shift)
|
---|
| 949 | {
|
---|
| 950 | Vector3 hvec = camera->GetDirection();
|
---|
| 951 | hvec.z = 0;
|
---|
| 952 |
|
---|
| 953 | Vector3 pos = camera->GetPosition();
|
---|
| 954 | pos += hvec * shift;
|
---|
| 955 |
|
---|
| 956 | camera->SetPosition(pos);
|
---|
| 957 | }
|
---|
| 958 |
|
---|
| 959 |
|
---|
[2794] | 960 | void KeyVerticalMotion(float shift)
|
---|
| 961 | {
|
---|
| 962 | Vector3 uvec = Vector3(0, 0, shift);
|
---|
| 963 |
|
---|
| 964 | Vector3 pos = camera->GetPosition();
|
---|
| 965 | pos += uvec;
|
---|
| 966 |
|
---|
| 967 | camera->SetPosition(pos);
|
---|
| 968 | }
|
---|
| 969 |
|
---|
| 970 |
|
---|
[2792] | 971 | void Display()
|
---|
[2801] | 972 | {
|
---|
[2826] | 973 | glFlush();
|
---|
| 974 | elapsedTime = frameTimer.Elapsedms();
|
---|
| 975 |
|
---|
[2819] | 976 | // take time from last frame
|
---|
[2801] | 977 | frameTimer.Start();
|
---|
| 978 |
|
---|
[2800] | 979 | Vector3 oldPos = camera->GetPosition();
|
---|
| 980 |
|
---|
[2792] | 981 | if (leftKeyPressed)
|
---|
[2795] | 982 | camera->Pitch(KeyRotationAngle());
|
---|
[2792] | 983 | if (rightKeyPressed)
|
---|
[2795] | 984 | camera->Pitch(-KeyRotationAngle());
|
---|
[2792] | 985 | if (upKeyPressed)
|
---|
[2795] | 986 | KeyHorizontalMotion(KeyShift());
|
---|
[2792] | 987 | if (downKeyPressed)
|
---|
[2795] | 988 | KeyHorizontalMotion(-KeyShift());
|
---|
[2794] | 989 | if (eightKeyPressed)
|
---|
[2795] | 990 | KeyVerticalMotion(-KeyShift());
|
---|
[2794] | 991 | if (nineKeyPressed)
|
---|
[2795] | 992 | KeyVerticalMotion(KeyShift());
|
---|
[2792] | 993 |
|
---|
[2801] | 994 | // place view on ground
|
---|
| 995 | if (!flyMode) PlaceViewer(oldPos);
|
---|
[2800] | 996 |
|
---|
[2826] | 997 | if (showAlgorithmTime)
|
---|
| 998 | {
|
---|
| 999 | glFinish();
|
---|
| 1000 | algTimer.Start();
|
---|
| 1001 | }
|
---|
[2809] | 1002 |
|
---|
[2825] | 1003 | // render without shading
|
---|
| 1004 | switch (renderType)
|
---|
| 1005 | {
|
---|
| 1006 | case RenderState::FIXED:
|
---|
| 1007 |
|
---|
| 1008 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
|
---|
[2809] | 1009 |
|
---|
[2825] | 1010 | state.SetRenderType(RenderState::FIXED);
|
---|
| 1011 | glEnable(GL_LIGHTING);
|
---|
[2809] | 1012 |
|
---|
[2825] | 1013 | cgGLDisableProfile(RenderState::sCgFragmentProfile);
|
---|
| 1014 | cgGLDisableProfile(RenderState::sCgVertexProfile);
|
---|
[2809] | 1015 |
|
---|
[2825] | 1016 | glDrawBuffers(1, mrt);
|
---|
| 1017 |
|
---|
[2829] | 1018 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1019 |
|
---|
[2825] | 1020 | break;
|
---|
| 1021 |
|
---|
| 1022 | case RenderState::DEPTH_PASS:
|
---|
| 1023 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
|
---|
| 1024 |
|
---|
| 1025 | state.SetRenderType(RenderState::DEPTH_PASS);
|
---|
| 1026 | glDisable(GL_LIGHTING);
|
---|
| 1027 |
|
---|
| 1028 | cgGLDisableProfile(RenderState::sCgFragmentProfile);
|
---|
| 1029 | cgGLDisableProfile(RenderState::sCgVertexProfile);
|
---|
[2809] | 1030 |
|
---|
[2829] | 1031 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1032 |
|
---|
| 1033 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
| 1034 |
|
---|
[2825] | 1035 | glDrawBuffers(1, mrt);
|
---|
| 1036 |
|
---|
| 1037 | break;
|
---|
| 1038 |
|
---|
| 1039 | case RenderState::DEFERRED:
|
---|
| 1040 | state.SetRenderType(RenderState::DEFERRED);
|
---|
| 1041 |
|
---|
| 1042 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
|
---|
| 1043 |
|
---|
| 1044 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
| 1045 | glViewport(0, 0, texWidth, texHeight);
|
---|
| 1046 |
|
---|
| 1047 | cgGLEnableProfile(RenderState::sCgFragmentProfile);
|
---|
| 1048 | cgGLBindProgram(RenderState::sCgMrtFragmentProgram);
|
---|
| 1049 |
|
---|
| 1050 | cgGLEnableProfile(RenderState::sCgVertexProfile);
|
---|
| 1051 | cgGLBindProgram(sCgMrtVertexProgram);
|
---|
| 1052 |
|
---|
| 1053 | glDrawBuffers(3, mrt);
|
---|
| 1054 |
|
---|
[2829] | 1055 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1056 |
|
---|
[2825] | 1057 | break;
|
---|
| 1058 | }
|
---|
| 1059 |
|
---|
[2642] | 1060 |
|
---|
[2801] | 1061 | glDepthFunc(GL_LESS);
|
---|
[2825] | 1062 |
|
---|
[2801] | 1063 | glDisable(GL_TEXTURE_2D);
|
---|
| 1064 | glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
---|
[2825] | 1065 |
|
---|
[2801] | 1066 |
|
---|
[2756] | 1067 | // bring eye modelview matrix up-to-date
|
---|
| 1068 | SetupEyeView();
|
---|
[2642] | 1069 |
|
---|
[2819] | 1070 |
|
---|
[2767] | 1071 | // actually render the scene geometry using one of the specified algorithms
|
---|
| 1072 | traverser->RenderScene();
|
---|
[2795] | 1073 |
|
---|
[2801] | 1074 |
|
---|
[2826] | 1075 |
|
---|
[2825] | 1076 | /////////
|
---|
[2809] | 1077 | //-- do the rest of the rendering
|
---|
[2801] | 1078 |
|
---|
| 1079 | glEnableClientState(GL_VERTEX_ARRAY);
|
---|
| 1080 | glEnableClientState(GL_NORMAL_ARRAY);
|
---|
| 1081 |
|
---|
| 1082 |
|
---|
| 1083 | // reset depth pass and render visible objects
|
---|
[2825] | 1084 | if (renderType == RenderState::DEPTH_PASS)
|
---|
[2801] | 1085 | {
|
---|
[2829] | 1086 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
[2801] | 1087 | RenderVisibleObjects();
|
---|
| 1088 | }
|
---|
[2764] | 1089 |
|
---|
[2801] | 1090 |
|
---|
[2796] | 1091 | ///////////////
|
---|
| 1092 | //-- render sky
|
---|
[2795] | 1093 |
|
---|
[2796] | 1094 | RenderSky();
|
---|
[2801] | 1095 |
|
---|
| 1096 | state.Reset();
|
---|
| 1097 |
|
---|
| 1098 | glDisableClientState(GL_VERTEX_ARRAY);
|
---|
| 1099 | glDisableClientState(GL_NORMAL_ARRAY);
|
---|
| 1100 |
|
---|
[2825] | 1101 | if (renderType == RenderState::DEFERRED)
|
---|
| 1102 | {
|
---|
| 1103 | glPopAttrib();
|
---|
| 1104 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
|
---|
[2810] | 1105 |
|
---|
[2825] | 1106 | cgGLDisableProfile(RenderState::sCgVertexProfile);
|
---|
| 1107 | cgGLDisableProfile(RenderState::sCgFragmentProfile);
|
---|
[2809] | 1108 |
|
---|
[2825] | 1109 | glDrawBuffers(1, mrt);
|
---|
[2809] | 1110 |
|
---|
[2825] | 1111 | DisplayRenderTexture();
|
---|
| 1112 | }
|
---|
[2801] | 1113 |
|
---|
[2827] | 1114 |
|
---|
| 1115 | ///////////
|
---|
| 1116 |
|
---|
| 1117 | state.SetRenderType(RenderState::FIXED);
|
---|
| 1118 |
|
---|
[2826] | 1119 | if (showAlgorithmTime)
|
---|
| 1120 | {
|
---|
| 1121 | glFinish();
|
---|
[2827] | 1122 |
|
---|
[2826] | 1123 | algTime = algTimer.Elapsedms();
|
---|
[2827] | 1124 | perfGraph->AddData(algTime);
|
---|
[2828] | 1125 |
|
---|
| 1126 | /*float col[3];
|
---|
| 1127 | switch (renderMode)
|
---|
| 1128 | {
|
---|
| 1129 | case RenderTraverser::CHCPLUSPLUS:
|
---|
| 1130 | col[0] = 1.0f; col[1] = 0.0f; col[2] = 0.0f;
|
---|
| 1131 | break;
|
---|
| 1132 | case RenderTraverser::CHC:
|
---|
| 1133 | col[0] = 0.0f; col[1] = 1.0f; col[2] = 1.0f;
|
---|
| 1134 | break;
|
---|
| 1135 | case RenderTraverser::STOP_AND_WAIT:
|
---|
| 1136 | col[0] = 1.0f; col[1] = 1.0f; col[2] = 0.0f;
|
---|
| 1137 | break;
|
---|
| 1138 | case RenderTraverser::CULL_FRUSTUM:
|
---|
| 1139 | col[0] = 1.0f; col[1] = 0.0f; col[2] = 1.0f;
|
---|
| 1140 | break;
|
---|
| 1141 | default:
|
---|
| 1142 | col[0] = 1.0f; col[1] = 0.0f; col[2] = 0.0f;
|
---|
| 1143 | }
|
---|
| 1144 | perfGraph->SetGraphColor(col);
|
---|
| 1145 | */
|
---|
[2827] | 1146 | perfGraph->Draw();
|
---|
[2826] | 1147 | }
|
---|
[2827] | 1148 | else
|
---|
| 1149 | {
|
---|
| 1150 | if (visMode) DisplayVisualization();
|
---|
| 1151 | }
|
---|
[2825] | 1152 |
|
---|
[2764] | 1153 | DisplayStats();
|
---|
[2767] | 1154 |
|
---|
[2642] | 1155 | glutSwapBuffers();
|
---|
| 1156 | }
|
---|
| 1157 |
|
---|
| 1158 |
|
---|
| 1159 | #pragma warning( disable : 4100 )
|
---|
[2792] | 1160 | void KeyBoard(unsigned char c, int x, int y)
|
---|
[2642] | 1161 | {
|
---|
| 1162 | switch(c)
|
---|
| 1163 | {
|
---|
| 1164 | case 27:
|
---|
[2792] | 1165 | CleanUp();
|
---|
[2642] | 1166 | exit(0);
|
---|
| 1167 | break;
|
---|
| 1168 | case 32: //space
|
---|
[2800] | 1169 | renderMode = (renderMode + 1) % RenderTraverser::NUM_TRAVERSAL_TYPES;
|
---|
[2764] | 1170 | ResetTraverser();
|
---|
[2642] | 1171 | break;
|
---|
| 1172 | case 'h':
|
---|
| 1173 | case 'H':
|
---|
| 1174 | showHelp = !showHelp;
|
---|
| 1175 | break;
|
---|
| 1176 | case '+':
|
---|
[2776] | 1177 | maxBatchSize += 10;
|
---|
| 1178 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
[2642] | 1179 | break;
|
---|
| 1180 | case '-':
|
---|
[2776] | 1181 | maxBatchSize -= 10;
|
---|
| 1182 | if (maxBatchSize < 0) maxBatchSize = 1;
|
---|
| 1183 | traverser->SetMaxBatchSize(maxBatchSize);
|
---|
[2642] | 1184 | break;
|
---|
[2776] | 1185 | case '6':
|
---|
| 1186 | assumedVisibleFrames -= 1;
|
---|
| 1187 | if (assumedVisibleFrames < 1) assumedVisibleFrames = 1;
|
---|
| 1188 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
| 1189 | break;
|
---|
| 1190 | case '7':
|
---|
| 1191 | assumedVisibleFrames += 1;
|
---|
| 1192 | traverser->SetAssumedVisibleFrames(assumedVisibleFrames);
|
---|
| 1193 | break;
|
---|
| 1194 | case 'M':
|
---|
| 1195 | case 'm':
|
---|
| 1196 | useMultiQueries = !useMultiQueries;
|
---|
| 1197 | traverser->SetUseMultiQueries(useMultiQueries);
|
---|
| 1198 | break;
|
---|
[2767] | 1199 | case '8':
|
---|
[2794] | 1200 | eightKeyPressed = true;
|
---|
[2767] | 1201 | break;
|
---|
| 1202 | case '9':
|
---|
[2794] | 1203 | nineKeyPressed = true;
|
---|
[2767] | 1204 | break;
|
---|
[2792] | 1205 | case 'o':
|
---|
| 1206 | case 'O':
|
---|
[2642] | 1207 | useOptimization = !useOptimization;
|
---|
[2764] | 1208 | traverser->SetUseOptimization(useOptimization);
|
---|
[2767] | 1209 | break;
|
---|
| 1210 | case 'a':
|
---|
| 1211 | case 'A':
|
---|
[2792] | 1212 | leftKeyPressed = true;
|
---|
[2767] | 1213 | break;
|
---|
| 1214 | case 'd':
|
---|
| 1215 | case 'D':
|
---|
[2792] | 1216 | rightKeyPressed = true;
|
---|
[2767] | 1217 | break;
|
---|
| 1218 | case 'w':
|
---|
| 1219 | case 'W':
|
---|
[2792] | 1220 | upKeyPressed = true;
|
---|
[2767] | 1221 | break;
|
---|
[2829] | 1222 | case 's':
|
---|
| 1223 | case 'S':
|
---|
[2792] | 1224 | downKeyPressed = true;
|
---|
[2767] | 1225 | break;
|
---|
| 1226 | case 'r':
|
---|
| 1227 | case 'R':
|
---|
| 1228 | {
|
---|
| 1229 | useRenderQueue = !useRenderQueue;
|
---|
| 1230 | traverser->SetUseRenderQueue(useRenderQueue);
|
---|
| 1231 | }
|
---|
[2790] | 1232 | break;
|
---|
[2786] | 1233 | case 'b':
|
---|
| 1234 | case 'B':
|
---|
| 1235 | {
|
---|
| 1236 | useTightBounds = !useTightBounds;
|
---|
| 1237 | traverser->SetUseTightBounds(useTightBounds);
|
---|
| 1238 | }
|
---|
[2790] | 1239 | break;
|
---|
[2795] | 1240 | case '4':
|
---|
| 1241 | if (trianglesPerVirtualLeaf >= 100)
|
---|
| 1242 | trianglesPerVirtualLeaf -= 100;
|
---|
[2792] | 1243 |
|
---|
[2795] | 1244 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
| 1245 | break;
|
---|
| 1246 | case '5':
|
---|
| 1247 | trianglesPerVirtualLeaf += 100;
|
---|
| 1248 | bvh->SetVirtualLeaves(trianglesPerVirtualLeaf);
|
---|
| 1249 | break;
|
---|
[2642] | 1250 | default:
|
---|
| 1251 | return;
|
---|
| 1252 | }
|
---|
| 1253 |
|
---|
| 1254 | glutPostRedisplay();
|
---|
| 1255 | }
|
---|
| 1256 |
|
---|
| 1257 |
|
---|
[2792] | 1258 | void SpecialKeyUp(int c, int x, int y)
|
---|
[2642] | 1259 | {
|
---|
[2792] | 1260 | switch (c)
|
---|
| 1261 | {
|
---|
| 1262 | case GLUT_KEY_LEFT:
|
---|
| 1263 | leftKeyPressed = false;
|
---|
| 1264 | break;
|
---|
| 1265 | case GLUT_KEY_RIGHT:
|
---|
| 1266 | rightKeyPressed = false;
|
---|
| 1267 | break;
|
---|
| 1268 | case GLUT_KEY_UP:
|
---|
| 1269 | upKeyPressed = false;
|
---|
| 1270 | break;
|
---|
| 1271 | case GLUT_KEY_DOWN:
|
---|
| 1272 | downKeyPressed = false;
|
---|
| 1273 | break;
|
---|
| 1274 | default:
|
---|
| 1275 | return;
|
---|
| 1276 | }
|
---|
| 1277 | //glutPostRedisplay();
|
---|
| 1278 | }
|
---|
| 1279 |
|
---|
| 1280 |
|
---|
| 1281 | void KeyUp(unsigned char c, int x, int y)
|
---|
| 1282 | {
|
---|
| 1283 | switch (c)
|
---|
| 1284 | {
|
---|
| 1285 | case 'A':
|
---|
| 1286 | case 'a':
|
---|
| 1287 | leftKeyPressed = false;
|
---|
| 1288 | break;
|
---|
| 1289 | case 'D':
|
---|
| 1290 | case 'd':
|
---|
| 1291 | rightKeyPressed = false;
|
---|
| 1292 | break;
|
---|
| 1293 | case 'W':
|
---|
| 1294 | case 'w':
|
---|
| 1295 | upKeyPressed = false;
|
---|
| 1296 | break;
|
---|
[2829] | 1297 | case 'S':
|
---|
| 1298 | case 's':
|
---|
[2792] | 1299 | downKeyPressed = false;
|
---|
| 1300 | break;
|
---|
[2794] | 1301 | case '8':
|
---|
| 1302 | eightKeyPressed = false;
|
---|
| 1303 | break;
|
---|
| 1304 |
|
---|
| 1305 | case '9':
|
---|
| 1306 | nineKeyPressed = false;
|
---|
| 1307 | break;
|
---|
| 1308 |
|
---|
[2792] | 1309 | default:
|
---|
| 1310 | return;
|
---|
| 1311 | }
|
---|
| 1312 | //glutPostRedisplay();
|
---|
| 1313 | }
|
---|
| 1314 |
|
---|
| 1315 |
|
---|
| 1316 | void Special(int c, int x, int y)
|
---|
| 1317 | {
|
---|
[2642] | 1318 | switch(c)
|
---|
| 1319 | {
|
---|
| 1320 | case GLUT_KEY_F1:
|
---|
| 1321 | showHelp = !showHelp;
|
---|
| 1322 | break;
|
---|
[2790] | 1323 | case GLUT_KEY_F2:
|
---|
[2795] | 1324 | visMode = !visMode;
|
---|
[2790] | 1325 | break;
|
---|
| 1326 | case GLUT_KEY_F3:
|
---|
| 1327 | showBoundingVolumes = !showBoundingVolumes;
|
---|
| 1328 | traverser->SetShowBounds(showBoundingVolumes);
|
---|
| 1329 | break;
|
---|
| 1330 | case GLUT_KEY_F4:
|
---|
[2827] | 1331 | showOptions = !showOptions;
|
---|
[2790] | 1332 | break;
|
---|
| 1333 | case GLUT_KEY_F5:
|
---|
[2827] | 1334 | showStatistics = !showStatistics;
|
---|
[2790] | 1335 | break;
|
---|
[2800] | 1336 | case GLUT_KEY_F6:
|
---|
| 1337 | flyMode = !flyMode;
|
---|
| 1338 | break;
|
---|
[2801] | 1339 | case GLUT_KEY_F7:
|
---|
[2825] | 1340 |
|
---|
| 1341 | renderType = (renderType + 1) % 3;
|
---|
| 1342 | traverser->SetUseDepthPass(renderType == RenderState::DEPTH_PASS);
|
---|
| 1343 |
|
---|
[2801] | 1344 | break;
|
---|
[2803] | 1345 | case GLUT_KEY_F8:
|
---|
[2821] | 1346 | useSsao = !useSsao;
|
---|
| 1347 | break;
|
---|
[2826] | 1348 | case GLUT_KEY_F9:
|
---|
| 1349 | showAlgorithmTime = !showAlgorithmTime;
|
---|
| 1350 | break;
|
---|
| 1351 |
|
---|
[2642] | 1352 | case GLUT_KEY_LEFT:
|
---|
[2767] | 1353 | {
|
---|
[2792] | 1354 | leftKeyPressed = true;
|
---|
[2795] | 1355 | camera->Pitch(KeyRotationAngle());
|
---|
[2767] | 1356 | }
|
---|
[2642] | 1357 | break;
|
---|
| 1358 | case GLUT_KEY_RIGHT:
|
---|
[2767] | 1359 | {
|
---|
[2792] | 1360 | rightKeyPressed = true;
|
---|
[2795] | 1361 | camera->Pitch(-KeyRotationAngle());
|
---|
[2767] | 1362 | }
|
---|
[2642] | 1363 | break;
|
---|
| 1364 | case GLUT_KEY_UP:
|
---|
[2767] | 1365 | {
|
---|
[2792] | 1366 | upKeyPressed = true;
|
---|
[2795] | 1367 | KeyHorizontalMotion(KeyShift());
|
---|
[2767] | 1368 | }
|
---|
[2642] | 1369 | break;
|
---|
| 1370 | case GLUT_KEY_DOWN:
|
---|
[2767] | 1371 | {
|
---|
[2792] | 1372 | downKeyPressed = true;
|
---|
[2795] | 1373 | KeyHorizontalMotion(-KeyShift());
|
---|
[2767] | 1374 | }
|
---|
[2642] | 1375 | break;
|
---|
| 1376 | default:
|
---|
| 1377 | return;
|
---|
| 1378 |
|
---|
| 1379 | }
|
---|
| 1380 |
|
---|
| 1381 | glutPostRedisplay();
|
---|
| 1382 | }
|
---|
[2767] | 1383 |
|
---|
[2642] | 1384 | #pragma warning( default : 4100 )
|
---|
| 1385 |
|
---|
| 1386 |
|
---|
[2792] | 1387 | void Reshape(int w, int h)
|
---|
[2642] | 1388 | {
|
---|
[2759] | 1389 | winAspectRatio = 1.0f;
|
---|
[2642] | 1390 |
|
---|
| 1391 | glViewport(0, 0, w, h);
|
---|
| 1392 |
|
---|
| 1393 | winWidth = w;
|
---|
| 1394 | winHeight = h;
|
---|
| 1395 |
|
---|
[2759] | 1396 | if (w) winAspectRatio = (float) h / (float) w;
|
---|
[2642] | 1397 |
|
---|
[2758] | 1398 | glMatrixMode(GL_PROJECTION);
|
---|
| 1399 | glLoadIdentity();
|
---|
[2642] | 1400 |
|
---|
[2809] | 1401 | gluPerspective(fov, 1.0f / winAspectRatio, nearDist, myfar);
|
---|
[2788] | 1402 |
|
---|
[2758] | 1403 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1404 |
|
---|
[2642] | 1405 | glutPostRedisplay();
|
---|
| 1406 | }
|
---|
| 1407 |
|
---|
| 1408 |
|
---|
[2792] | 1409 | void Mouse(int button, int state, int x, int y)
|
---|
[2642] | 1410 | {
|
---|
[2758] | 1411 | if ((button == GLUT_LEFT_BUTTON) && (state == GLUT_DOWN))
|
---|
[2642] | 1412 | {
|
---|
| 1413 | xEyeBegin = x;
|
---|
| 1414 | yMotionBegin = y;
|
---|
| 1415 |
|
---|
[2792] | 1416 | glutMotionFunc(LeftMotion);
|
---|
[2642] | 1417 | }
|
---|
[2758] | 1418 | else if ((button == GLUT_RIGHT_BUTTON) && (state == GLUT_DOWN))
|
---|
[2642] | 1419 | {
|
---|
[2829] | 1420 | xEyeBegin = x;
|
---|
[2758] | 1421 | yEyeBegin = y;
|
---|
| 1422 | yMotionBegin = y;
|
---|
| 1423 |
|
---|
[2792] | 1424 | glutMotionFunc(RightMotion);
|
---|
[2758] | 1425 | }
|
---|
| 1426 | else if ((button == GLUT_MIDDLE_BUTTON) && (state == GLUT_DOWN))
|
---|
| 1427 | {
|
---|
[2642] | 1428 | horizontalMotionBegin = x;
|
---|
| 1429 | verticalMotionBegin = y;
|
---|
[2792] | 1430 | glutMotionFunc(MiddleMotion);
|
---|
[2642] | 1431 | }
|
---|
| 1432 |
|
---|
| 1433 | glutPostRedisplay();
|
---|
| 1434 | }
|
---|
| 1435 |
|
---|
[2758] | 1436 |
|
---|
| 1437 | /** rotation for left/right mouse drag
|
---|
[2642] | 1438 | motion for up/down mouse drag
|
---|
| 1439 | */
|
---|
[2792] | 1440 | void LeftMotion(int x, int y)
|
---|
[2642] | 1441 | {
|
---|
[2758] | 1442 | Vector3 viewDir = camera->GetDirection();
|
---|
| 1443 | Vector3 pos = camera->GetPosition();
|
---|
| 1444 |
|
---|
| 1445 | // don't move in the vertical direction
|
---|
[2764] | 1446 | Vector3 horView(viewDir[0], viewDir[1], 0);
|
---|
[2642] | 1447 |
|
---|
[2795] | 1448 | float eyeXAngle = 0.2f * M_PI * (xEyeBegin - x) / 180.0;
|
---|
[2756] | 1449 |
|
---|
[2795] | 1450 | camera->Pitch(eyeXAngle);
|
---|
[2787] | 1451 |
|
---|
[2780] | 1452 | pos += horView * (yMotionBegin - y) * 0.2f;
|
---|
[2795] | 1453 |
|
---|
[2758] | 1454 | camera->SetPosition(pos);
|
---|
[2642] | 1455 |
|
---|
| 1456 | xEyeBegin = x;
|
---|
| 1457 | yMotionBegin = y;
|
---|
[2758] | 1458 |
|
---|
[2642] | 1459 | glutPostRedisplay();
|
---|
| 1460 | }
|
---|
| 1461 |
|
---|
[2758] | 1462 |
|
---|
[2767] | 1463 | /** rotation for left / right mouse drag
|
---|
| 1464 | motion for up / down mouse drag
|
---|
[2758] | 1465 | */
|
---|
[2792] | 1466 | void RightMotion(int x, int y)
|
---|
[2758] | 1467 | {
|
---|
[2829] | 1468 | float eyeXAngle = 0.2f * M_PI * (xEyeBegin - x) / 180.0;
|
---|
[2795] | 1469 | float eyeYAngle = -0.2f * M_PI * (yEyeBegin - y) / 180.0;
|
---|
[2758] | 1470 |
|
---|
[2795] | 1471 | camera->Yaw(eyeYAngle);
|
---|
[2829] | 1472 | camera->Pitch(eyeXAngle);
|
---|
[2780] | 1473 |
|
---|
[2829] | 1474 | xEyeBegin = x;
|
---|
[2758] | 1475 | yEyeBegin = y;
|
---|
[2829] | 1476 |
|
---|
[2758] | 1477 | glutPostRedisplay();
|
---|
| 1478 | }
|
---|
| 1479 |
|
---|
| 1480 |
|
---|
[2642] | 1481 | // strafe
|
---|
[2792] | 1482 | void MiddleMotion(int x, int y)
|
---|
[2642] | 1483 | {
|
---|
[2758] | 1484 | Vector3 viewDir = camera->GetDirection();
|
---|
| 1485 | Vector3 pos = camera->GetPosition();
|
---|
| 1486 |
|
---|
[2642] | 1487 | // the 90 degree rotated view vector
|
---|
| 1488 | // y zero so we don't move in the vertical
|
---|
[2764] | 1489 | Vector3 rVec(viewDir[0], viewDir[1], 0);
|
---|
[2642] | 1490 |
|
---|
[2764] | 1491 | Matrix4x4 rot = RotationZMatrix(M_PI * 0.5f);
|
---|
[2758] | 1492 | rVec = rot * rVec;
|
---|
[2642] | 1493 |
|
---|
[2780] | 1494 | pos -= rVec * (x - horizontalMotionBegin) * 0.1f;
|
---|
[2764] | 1495 | pos[2] += (verticalMotionBegin - y) * 0.1f;
|
---|
[2642] | 1496 |
|
---|
[2758] | 1497 | camera->SetPosition(pos);
|
---|
| 1498 |
|
---|
[2642] | 1499 | horizontalMotionBegin = x;
|
---|
| 1500 | verticalMotionBegin = y;
|
---|
[2758] | 1501 |
|
---|
[2642] | 1502 | glutPostRedisplay();
|
---|
| 1503 | }
|
---|
| 1504 |
|
---|
| 1505 |
|
---|
[2756] | 1506 | void InitExtensions(void)
|
---|
[2642] | 1507 | {
|
---|
| 1508 | GLenum err = glewInit();
|
---|
[2756] | 1509 |
|
---|
[2642] | 1510 | if (GLEW_OK != err)
|
---|
| 1511 | {
|
---|
| 1512 | // problem: glewInit failed, something is seriously wrong
|
---|
| 1513 | fprintf(stderr,"Error: %s\n", glewGetErrorString(err));
|
---|
| 1514 | exit(1);
|
---|
| 1515 | }
|
---|
[2756] | 1516 | if (!GLEW_ARB_occlusion_query)
|
---|
[2642] | 1517 | {
|
---|
[2756] | 1518 | printf("I require the GL_ARB_occlusion_query to work.\n");
|
---|
[2642] | 1519 | exit(1);
|
---|
| 1520 | }
|
---|
| 1521 | }
|
---|
| 1522 |
|
---|
| 1523 |
|
---|
[2826] | 1524 | void Begin2D()
|
---|
[2642] | 1525 | {
|
---|
| 1526 | glDisable(GL_LIGHTING);
|
---|
| 1527 | glDisable(GL_DEPTH_TEST);
|
---|
| 1528 |
|
---|
[2826] | 1529 | glMatrixMode(GL_PROJECTION);
|
---|
[2642] | 1530 | glPushMatrix();
|
---|
| 1531 | glLoadIdentity();
|
---|
[2826] | 1532 | gluOrtho2D(0, winWidth, 0, winHeight);
|
---|
[2642] | 1533 |
|
---|
[2826] | 1534 | glMatrixMode(GL_MODELVIEW);
|
---|
[2642] | 1535 | glPushMatrix();
|
---|
| 1536 | glLoadIdentity();
|
---|
| 1537 | }
|
---|
| 1538 |
|
---|
| 1539 |
|
---|
[2826] | 1540 | void End2D()
|
---|
[2642] | 1541 | {
|
---|
| 1542 | glPopMatrix();
|
---|
| 1543 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1544 | glPopMatrix();
|
---|
| 1545 |
|
---|
| 1546 | glEnable(GL_LIGHTING);
|
---|
| 1547 | glEnable(GL_DEPTH_TEST);
|
---|
| 1548 | }
|
---|
| 1549 |
|
---|
| 1550 |
|
---|
[2787] | 1551 | // displays the visualisation of culling algorithm
|
---|
| 1552 | void DisplayVisualization()
|
---|
[2796] | 1553 | {
|
---|
[2787] | 1554 | visualization->SetFrameId(traverser->GetCurrentFrameId());
|
---|
| 1555 |
|
---|
[2792] | 1556 | Begin2D();
|
---|
[2642] | 1557 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
---|
| 1558 | glEnable(GL_BLEND);
|
---|
[2827] | 1559 | glColor4f(0.0f ,0.0f, 0.0f, 0.5f);
|
---|
[2642] | 1560 |
|
---|
[2827] | 1561 | glRecti(winWidth - winWidth / 3, winHeight - winHeight / 3, winWidth, winHeight);
|
---|
[2642] | 1562 | glDisable(GL_BLEND);
|
---|
[2792] | 1563 | End2D();
|
---|
[2788] | 1564 |
|
---|
| 1565 |
|
---|
| 1566 | AxisAlignedBox3 box = bvh->GetBox();
|
---|
| 1567 |
|
---|
[2807] | 1568 | // set far for viz
|
---|
| 1569 | camera->SetFar(0.35f * Magnitude(box.Diagonal()));
|
---|
[2796] | 1570 |
|
---|
[2807] | 1571 | const float offs = box.Size().x * 0.3f;
|
---|
| 1572 | //const float yoffs = box.Size().y * 0.5f;
|
---|
| 1573 |
|
---|
[2806] | 1574 | Vector3 pos = camera->GetPosition();
|
---|
| 1575 |
|
---|
[2807] | 1576 | Vector3 vizpos = Vector3(box.Min().x + 20, box.Min().y + 500, box.Min().z + box.Size().z * 50);
|
---|
[2806] | 1577 |
|
---|
[2795] | 1578 | visCamera->SetPosition(vizpos);
|
---|
[2796] | 1579 |
|
---|
[2806] | 1580 | glViewport(winWidth - winWidth / 3, winHeight - winHeight / 3, winWidth / 3, winHeight / 3);
|
---|
[2796] | 1581 |
|
---|
| 1582 | glMatrixMode(GL_PROJECTION);
|
---|
[2787] | 1583 | glLoadIdentity();
|
---|
[2796] | 1584 |
|
---|
[2807] | 1585 | glOrtho(-offs, offs, -offs, offs, 0.0f, box.Size().z * 100.0f);
|
---|
[2787] | 1586 |
|
---|
[2796] | 1587 | glMatrixMode(GL_MODELVIEW);
|
---|
[2787] | 1588 |
|
---|
[2796] | 1589 | visCamera->SetupCameraView();
|
---|
[2806] | 1590 |
|
---|
| 1591 | Matrix4x4 rotZ = RotationZMatrix(-camera->GetPitch());
|
---|
| 1592 | glMultMatrixf((float *)rotZ.x);
|
---|
| 1593 |
|
---|
| 1594 | glTranslatef(-pos.x, -pos.y, -pos.z);
|
---|
| 1595 |
|
---|
| 1596 |
|
---|
[2788] | 1597 | GLfloat position[] = {0.8f, 1.0f, 1.5f, 0.0f};
|
---|
| 1598 | glLightfv(GL_LIGHT0, GL_POSITION, position);
|
---|
[2787] | 1599 |
|
---|
[2788] | 1600 | GLfloat position1[] = {bvh->GetBox().Center().x, bvh->GetBox().Max().y, bvh->GetBox().Center().z, 1.0f};
|
---|
| 1601 | glLightfv(GL_LIGHT1, GL_POSITION, position1);
|
---|
[2787] | 1602 |
|
---|
[2642] | 1603 | glClear(GL_DEPTH_BUFFER_BIT);
|
---|
| 1604 |
|
---|
[2806] | 1605 |
|
---|
[2767] | 1606 | ////////////
|
---|
[2787] | 1607 | //-- visualization of the occlusion culling
|
---|
| 1608 |
|
---|
[2767] | 1609 | visualization->Render();
|
---|
| 1610 |
|
---|
[2806] | 1611 | // reset vp
|
---|
[2642] | 1612 | glViewport(0, 0, winWidth, winHeight);
|
---|
| 1613 | }
|
---|
| 1614 |
|
---|
[2767] | 1615 |
|
---|
[2642] | 1616 | // cleanup routine after the main loop
|
---|
[2756] | 1617 | void CleanUp()
|
---|
[2642] | 1618 | {
|
---|
[2756] | 1619 | DEL_PTR(traverser);
|
---|
[2796] | 1620 | DEL_PTR(sceneQuery);
|
---|
[2756] | 1621 | DEL_PTR(bvh);
|
---|
[2767] | 1622 | DEL_PTR(visualization);
|
---|
[2787] | 1623 | DEL_PTR(camera);
|
---|
[2793] | 1624 | DEL_PTR(loader);
|
---|
[2801] | 1625 | DEL_PTR(renderQueue);
|
---|
[2827] | 1626 | DEL_PTR(perfGraph);
|
---|
[2809] | 1627 |
|
---|
[2810] | 1628 | if (sCgMrtVertexProgram)
|
---|
| 1629 | cgDestroyProgram(sCgMrtVertexProgram);
|
---|
[2827] | 1630 | if (RenderState::sCgMrtFragmentProgram)
|
---|
| 1631 | cgDestroyProgram(RenderState::sCgMrtFragmentProgram);
|
---|
| 1632 | if (RenderState::sCgMrtFragmentTexProgram)
|
---|
| 1633 | cgDestroyProgram(RenderState::sCgMrtFragmentTexProgram);
|
---|
[2821] | 1634 | if (sCgSsaoProgram)
|
---|
| 1635 | cgDestroyProgram(sCgSsaoProgram);
|
---|
| 1636 | if (sCgDeferredProgram)
|
---|
| 1637 | cgDestroyProgram(sCgDeferredProgram);
|
---|
[2809] | 1638 | if (sCgContext)
|
---|
| 1639 | cgDestroyContext(sCgContext);
|
---|
[2817] | 1640 |
|
---|
| 1641 | glDeleteFramebuffersEXT(1, &fbo);
|
---|
| 1642 | glDeleteRenderbuffersEXT(1, &depthBuffer);
|
---|
| 1643 | glDeleteRenderbuffersEXT(1, &colorsBuffer);
|
---|
| 1644 | glDeleteRenderbuffersEXT(1, &normalsBuffer);
|
---|
| 1645 | glDeleteRenderbuffersEXT(1, &positionsBuffer);
|
---|
| 1646 |
|
---|
| 1647 | glDeleteTextures(1, &colorsTex);
|
---|
| 1648 | glDeleteTextures(1, &normalsTex);
|
---|
| 1649 | glDeleteTextures(1, &positionsTex);
|
---|
| 1650 | glDeleteTextures(1, &noiseTex);
|
---|
[2827] | 1651 | glDeleteTextures(1, &fontTex);
|
---|
[2642] | 1652 | }
|
---|
| 1653 |
|
---|
| 1654 |
|
---|
| 1655 | // this function inserts a dezimal point after each 1000
|
---|
[2829] | 1656 | void CalcDecimalPoint(string &str, int d, int len)
|
---|
[2642] | 1657 | {
|
---|
[2827] | 1658 | static vector<int> numbers;
|
---|
| 1659 | numbers.clear();
|
---|
| 1660 |
|
---|
[2829] | 1661 | static string shortStr;
|
---|
| 1662 | shortStr.clear();
|
---|
[2642] | 1663 |
|
---|
[2829] | 1664 | static char hstr[100];
|
---|
| 1665 |
|
---|
[2642] | 1666 | while (d != 0)
|
---|
| 1667 | {
|
---|
| 1668 | numbers.push_back(d % 1000);
|
---|
| 1669 | d /= 1000;
|
---|
| 1670 | }
|
---|
| 1671 |
|
---|
| 1672 | // first element without leading zeros
|
---|
| 1673 | if (numbers.size() > 0)
|
---|
| 1674 | {
|
---|
[2800] | 1675 | sprintf(hstr, "%d", numbers.back());
|
---|
[2829] | 1676 | shortStr.append(hstr);
|
---|
[2642] | 1677 | }
|
---|
| 1678 |
|
---|
[2764] | 1679 | for (int i = (int)numbers.size() - 2; i >= 0; i--)
|
---|
[2642] | 1680 | {
|
---|
[2800] | 1681 | sprintf(hstr, ",%03d", numbers[i]);
|
---|
[2829] | 1682 | shortStr.append(hstr);
|
---|
[2642] | 1683 | }
|
---|
[2829] | 1684 |
|
---|
| 1685 | int dif = len - (int)shortStr.size();
|
---|
| 1686 |
|
---|
| 1687 | for (int i = 0; i < dif; ++ i)
|
---|
| 1688 | {
|
---|
| 1689 | str += " ";
|
---|
| 1690 | }
|
---|
| 1691 |
|
---|
| 1692 | str.append(shortStr);
|
---|
[2764] | 1693 | }
|
---|
| 1694 |
|
---|
| 1695 |
|
---|
| 1696 | void DisplayStats()
|
---|
| 1697 | {
|
---|
[2826] | 1698 | static char msg[9][300];
|
---|
[2764] | 1699 |
|
---|
[2826] | 1700 | static double frameTime = elapsedTime;
|
---|
| 1701 | static double renderTime = algTime;
|
---|
| 1702 |
|
---|
[2818] | 1703 | const float expFactor = 0.1f;
|
---|
[2767] | 1704 |
|
---|
[2802] | 1705 | // if some strange render time spike happened in this frame => don't count
|
---|
[2826] | 1706 | if (elapsedTime < 500) frameTime = elapsedTime * expFactor + (1.0f - expFactor) * elapsedTime;
|
---|
| 1707 |
|
---|
| 1708 | static float rTime = 1000.0f;
|
---|
[2764] | 1709 |
|
---|
[2826] | 1710 | if (showAlgorithmTime)
|
---|
| 1711 | {
|
---|
| 1712 | if (algTime < 500) renderTime = algTime * expFactor + (1.0f - expFactor) * renderTime;
|
---|
| 1713 | }
|
---|
[2802] | 1714 |
|
---|
[2826] | 1715 | accumulatedTime += elapsedTime;
|
---|
| 1716 |
|
---|
[2776] | 1717 | if (accumulatedTime > 500) // update every fraction of a second
|
---|
[2770] | 1718 | {
|
---|
| 1719 | accumulatedTime = 0;
|
---|
| 1720 |
|
---|
[2826] | 1721 | if (frameTime) fps = 1e3f / (float)frameTime;
|
---|
| 1722 |
|
---|
| 1723 | rTime = renderTime;
|
---|
[2770] | 1724 | renderedObjects = traverser->GetStats().mNumRenderedGeometry;
|
---|
[2773] | 1725 | renderedNodes = traverser->GetStats().mNumRenderedNodes;
|
---|
| 1726 | renderedTriangles = traverser->GetStats().mNumRenderedTriangles;
|
---|
| 1727 |
|
---|
[2770] | 1728 | traversedNodes = traverser->GetStats().mNumTraversedNodes;
|
---|
| 1729 | frustumCulledNodes = traverser->GetStats().mNumFrustumCulledNodes;
|
---|
| 1730 | queryCulledNodes = traverser->GetStats().mNumQueryCulledNodes;
|
---|
| 1731 | issuedQueries = traverser->GetStats().mNumIssuedQueries;
|
---|
| 1732 | stateChanges = traverser->GetStats().mNumStateChanges;
|
---|
[2800] | 1733 | numBatches = traverser->GetStats().mNumBatches;
|
---|
[2770] | 1734 | }
|
---|
| 1735 |
|
---|
[2764] | 1736 |
|
---|
[2826] | 1737 | Begin2D();
|
---|
[2808] | 1738 |
|
---|
[2826] | 1739 | glEnable(GL_BLEND);
|
---|
| 1740 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
---|
[2764] | 1741 |
|
---|
[2826] | 1742 | if (showHelp)
|
---|
| 1743 | {
|
---|
| 1744 | DrawHelpMessage();
|
---|
| 1745 | }
|
---|
| 1746 | else
|
---|
| 1747 | {
|
---|
[2829] | 1748 | if (showOptions)
|
---|
| 1749 | {
|
---|
| 1750 | glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
|
---|
| 1751 | glRecti(5, winHeight - 95, winWidth * 2 / 3 - 5, winHeight - 5);
|
---|
| 1752 | }
|
---|
| 1753 |
|
---|
| 1754 | if (showStatistics)
|
---|
| 1755 | {
|
---|
| 1756 | glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
|
---|
| 1757 | glRecti(5, winHeight - 165, winWidth * 2 / 3 - 5, winHeight - 100);
|
---|
| 1758 | }
|
---|
| 1759 |
|
---|
| 1760 | glEnable(GL_TEXTURE_2D);
|
---|
| 1761 |
|
---|
[2827] | 1762 | myfont.Begin();
|
---|
[2769] | 1763 |
|
---|
[2826] | 1764 | if (showOptions)
|
---|
| 1765 | {
|
---|
[2829] | 1766 | glColor3f(0.0f, 1.0f, 0.0f);
|
---|
| 1767 |
|
---|
[2826] | 1768 | int i = 0;
|
---|
| 1769 |
|
---|
| 1770 | static char *renderTypeStr[] = {"fixed function", "fixed function + depth pass", "deferred shading"};
|
---|
[2825] | 1771 |
|
---|
[2826] | 1772 | sprintf(msg[i ++], "multiqueries: %d, tight bounds: %d, render queue: %d",
|
---|
| 1773 | useMultiQueries, useTightBounds, useRenderQueue);
|
---|
[2792] | 1774 |
|
---|
[2826] | 1775 | sprintf(msg[i ++], "render technique: %s, SSAO: %d", renderTypeStr[renderType], useSsao);
|
---|
[2808] | 1776 |
|
---|
[2826] | 1777 | sprintf(msg[i ++], "triangles per virtual leaf: %5d", trianglesPerVirtualLeaf);
|
---|
[2808] | 1778 |
|
---|
[2826] | 1779 | sprintf(msg[i ++], "assumed visible frames: %4d, max batch size: %4d",
|
---|
| 1780 | assumedVisibleFrames, maxBatchSize);
|
---|
[2808] | 1781 |
|
---|
[2826] | 1782 | for (int j = 0; j < 4; ++ j)
|
---|
[2829] | 1783 | myfont.DrawString(msg[j], 10.0f, winHeight - 5 - j * 20);
|
---|
[2826] | 1784 | }
|
---|
[2808] | 1785 |
|
---|
[2786] | 1786 | if (showStatistics)
|
---|
[2764] | 1787 | {
|
---|
[2829] | 1788 | glColor3f(1.0f, 1.0f, 0.0f);
|
---|
| 1789 |
|
---|
[2826] | 1790 | string str;
|
---|
| 1791 | string str2;
|
---|
| 1792 |
|
---|
[2829] | 1793 | int len = 10;
|
---|
| 1794 | CalcDecimalPoint(str, renderedTriangles, len);
|
---|
| 1795 | CalcDecimalPoint(str2, bvh->GetBvhStats().mTriangles, len);
|
---|
[2826] | 1796 |
|
---|
| 1797 | int i = 4;
|
---|
| 1798 |
|
---|
[2829] | 1799 | sprintf(msg[i ++], "rendered: %6d of %6d nodes, %s of %s triangles",
|
---|
[2826] | 1800 | renderedNodes, bvh->GetNumVirtualNodes(), str.c_str(), str2.c_str());
|
---|
| 1801 |
|
---|
| 1802 | sprintf(msg[i ++], "traversed: %5d, frustum culled: %5d, query culled: %5d",
|
---|
| 1803 | traversedNodes, frustumCulledNodes, queryCulledNodes);
|
---|
| 1804 |
|
---|
| 1805 | sprintf(msg[i ++], "issued queries: %5d, state changes: %5d, render batches: %5d",
|
---|
| 1806 | issuedQueries, stateChanges, numBatches);
|
---|
| 1807 |
|
---|
| 1808 | for (int j = 4; j < 7; ++ j)
|
---|
[2829] | 1809 | myfont.DrawString(msg[j], 10.0f, winHeight - (j + 1) * 20);
|
---|
[2764] | 1810 | }
|
---|
[2790] | 1811 |
|
---|
[2826] | 1812 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
| 1813 | static char *alg_str[] = {"Frustum Cull", "Stop and Wait", "CHC", "CHC ++"};
|
---|
[2827] | 1814 |
|
---|
| 1815 | if (!showAlgorithmTime)
|
---|
| 1816 | {
|
---|
| 1817 | sprintf(msg[7], "%s: %6.1f fps", alg_str[renderMode], fps);
|
---|
| 1818 | }
|
---|
| 1819 | else
|
---|
| 1820 | {
|
---|
| 1821 | sprintf(msg[7], "%s: %6.1f ms", alg_str[renderMode], rTime);
|
---|
| 1822 | }
|
---|
[2826] | 1823 |
|
---|
[2829] | 1824 | myfont.DrawString(msg[7], 1.3f, 690.0f, 760.0f);//, top_color, bottom_color);
|
---|
[2827] | 1825 |
|
---|
| 1826 | //sprintf(msg[8], "algorithm time: %6.1f ms", rTime);
|
---|
| 1827 | //myfont.DrawString(msg[8], 720.0f, 730.0f);
|
---|
[2764] | 1828 | }
|
---|
| 1829 |
|
---|
[2826] | 1830 | glDisable(GL_BLEND);
|
---|
| 1831 | glDisable(GL_TEXTURE_2D);
|
---|
| 1832 |
|
---|
[2792] | 1833 | End2D();
|
---|
[2764] | 1834 | }
|
---|
[2796] | 1835 |
|
---|
| 1836 |
|
---|
| 1837 | void RenderSky()
|
---|
| 1838 | {
|
---|
| 1839 | SceneEntityContainer::const_iterator sit, sit_end = skyGeometry.end();
|
---|
| 1840 |
|
---|
| 1841 | for (sit = skyGeometry.begin(); sit != sit_end; ++ sit)
|
---|
| 1842 | (*sit)->Render(&state);
|
---|
[2801] | 1843 | }
|
---|
[2796] | 1844 |
|
---|
| 1845 |
|
---|
[2801] | 1846 | void RenderVisibleObjects()
|
---|
| 1847 | {
|
---|
[2825] | 1848 | state.SetRenderType(RenderState::FIXED);
|
---|
[2796] | 1849 | state.Reset();
|
---|
[2801] | 1850 |
|
---|
| 1851 | glEnable(GL_LIGHTING);
|
---|
| 1852 | glDepthFunc(GL_LEQUAL);
|
---|
| 1853 |
|
---|
| 1854 | //cout << "visible: " << (int)traverser->GetVisibleObjects().size() << endl;
|
---|
| 1855 |
|
---|
| 1856 | SceneEntityContainer::const_iterator sit,
|
---|
| 1857 | sit_end = traverser->GetVisibleObjects().end();
|
---|
| 1858 |
|
---|
| 1859 | for (sit = traverser->GetVisibleObjects().begin(); sit != sit_end; ++ sit)
|
---|
| 1860 | renderQueue->Enqueue(*sit);
|
---|
| 1861 |
|
---|
| 1862 | renderQueue->Apply();
|
---|
| 1863 |
|
---|
| 1864 | glDepthFunc(GL_LESS);
|
---|
| 1865 | }
|
---|
| 1866 |
|
---|
| 1867 |
|
---|
| 1868 | void PlaceViewer(const Vector3 &oldPos)
|
---|
| 1869 | {
|
---|
| 1870 | Vector3 playerPos = camera->GetPosition();
|
---|
| 1871 |
|
---|
| 1872 | bool validIntersect = sceneQuery->CalcIntersection(playerPos);
|
---|
| 1873 |
|
---|
| 1874 | if (validIntersect &&
|
---|
| 1875 | (( playerPos.z - oldPos.z) < bvh->GetBox().Size(2) * 1e-1f))
|
---|
| 1876 | {
|
---|
| 1877 | camera->SetPosition(playerPos);
|
---|
| 1878 | }
|
---|
[2809] | 1879 | }
|
---|
| 1880 |
|
---|
| 1881 |
|
---|
| 1882 | void DisplayRenderTexture()
|
---|
| 1883 | {
|
---|
[2829] | 1884 | glDisable(GL_ALPHA_TEST);
|
---|
[2809] | 1885 | glDisable(GL_TEXTURE_2D);
|
---|
| 1886 | glDisable(GL_LIGHTING);
|
---|
[2818] | 1887 |
|
---|
[2809] | 1888 | glMatrixMode(GL_PROJECTION);
|
---|
| 1889 | glPushMatrix();
|
---|
| 1890 | glLoadIdentity();
|
---|
| 1891 |
|
---|
| 1892 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1893 | glPushMatrix();
|
---|
| 1894 | glLoadIdentity();
|
---|
[2810] | 1895 |
|
---|
[2817] | 1896 | const float offs = 0.5f;
|
---|
[2818] | 1897 |
|
---|
[2817] | 1898 | glOrtho(-offs, offs, -offs, offs, 0, 1);
|
---|
[2809] | 1899 |
|
---|
| 1900 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1901 |
|
---|
[2818] | 1902 | cgGLEnableProfile(RenderState::sCgFragmentProfile);
|
---|
[2809] | 1903 |
|
---|
[2821] | 1904 | if (useSsao)
|
---|
| 1905 | {
|
---|
| 1906 | cgGLBindProgram(sCgSsaoProgram);
|
---|
| 1907 |
|
---|
| 1908 | cgGLEnableTextureParameter(sPositionsTexParamSsao);
|
---|
| 1909 | cgGLSetTextureParameter(sPositionsTexParamSsao, positionsTex);
|
---|
[2809] | 1910 |
|
---|
[2821] | 1911 | cgGLEnableTextureParameter(sColorsTexParamSsao);
|
---|
| 1912 | cgGLSetTextureParameter(sColorsTexParamSsao, colorsTex);
|
---|
| 1913 |
|
---|
| 1914 | cgGLEnableTextureParameter(sNormalsTexParamSsao);
|
---|
| 1915 | cgGLSetTextureParameter(sNormalsTexParamSsao, normalsTex);
|
---|
| 1916 |
|
---|
| 1917 | cgGLEnableTextureParameter(sNoiseTexParamSsao);
|
---|
| 1918 | cgGLSetTextureParameter(sNoiseTexParamSsao, noiseTex);
|
---|
| 1919 | }
|
---|
| 1920 | else
|
---|
| 1921 | {
|
---|
| 1922 | cgGLBindProgram(sCgDeferredProgram);
|
---|
| 1923 |
|
---|
| 1924 | cgGLEnableTextureParameter(sPositionsTexParam);
|
---|
| 1925 | cgGLSetTextureParameter(sPositionsTexParam, positionsTex);
|
---|
[2809] | 1926 |
|
---|
[2821] | 1927 | cgGLEnableTextureParameter(sColorsTexParam);
|
---|
| 1928 | cgGLSetTextureParameter(sColorsTexParam, colorsTex);
|
---|
[2809] | 1929 |
|
---|
[2821] | 1930 | cgGLEnableTextureParameter(sNormalsTexParam);
|
---|
| 1931 | cgGLSetTextureParameter(sNormalsTexParam, normalsTex);
|
---|
| 1932 | }
|
---|
[2810] | 1933 |
|
---|
[2809] | 1934 | Vector3 tl, tr, bl, br;
|
---|
| 1935 | ComputeViewVectors(tl, tr, bl, br);
|
---|
| 1936 |
|
---|
| 1937 | glColor3f(1.0f, 1.0f, 1.0f);
|
---|
| 1938 |
|
---|
| 1939 | glBegin(GL_QUADS);
|
---|
[2818] | 1940 |
|
---|
[2829] | 1941 | // note: slightly larger texture hides ambient occlusion error on border but costs resolution
|
---|
[2818] | 1942 | //float offs2 = 0.55f;
|
---|
| 1943 | float offs2 = 0.5f;
|
---|
[2817] | 1944 |
|
---|
| 1945 | glColor3f(bl.x, bl.y, bl.z); glTexCoord2f(0, 0); glVertex3f(-offs2, -offs2, -0.5f);
|
---|
| 1946 | glColor3f(br.x, br.y, br.z); glTexCoord2f(1, 0); glVertex3f( offs2, -offs2, -0.5f);
|
---|
| 1947 | glColor3f(tr.x, tr.y, tr.z); glTexCoord2f(1, 1); glVertex3f( offs2, offs2, -0.5f);
|
---|
| 1948 | glColor3f(tl.x, tl.y, tl.z); glTexCoord2f(0, 1); glVertex3f(-offs2, offs2, -0.5f);
|
---|
[2818] | 1949 |
|
---|
[2809] | 1950 | glEnd();
|
---|
| 1951 |
|
---|
[2829] | 1952 | cgGLDisableTextureParameter(sColorsTexParamSsao);
|
---|
| 1953 | cgGLDisableTextureParameter(sPositionsTexParamSsao);
|
---|
| 1954 | cgGLDisableTextureParameter(sNormalsTexParamSsao);
|
---|
| 1955 |
|
---|
[2821] | 1956 | if (useSsao)
|
---|
| 1957 | cgGLDisableTextureParameter(sNoiseTexParamSsao);
|
---|
| 1958 |
|
---|
[2818] | 1959 | cgGLDisableProfile(RenderState::sCgFragmentProfile);
|
---|
[2809] | 1960 |
|
---|
| 1961 | glEnable(GL_LIGHTING);
|
---|
| 1962 | glDisable(GL_TEXTURE_2D);
|
---|
| 1963 |
|
---|
| 1964 | glMatrixMode(GL_PROJECTION);
|
---|
| 1965 | glPopMatrix();
|
---|
| 1966 |
|
---|
| 1967 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1968 | glPopMatrix();
|
---|
| 1969 |
|
---|
[2810] | 1970 |
|
---|
[2809] | 1971 | PrintGLerror("displaytexture");
|
---|
| 1972 | }
|
---|
| 1973 |
|
---|
| 1974 |
|
---|
| 1975 | void GenerateSamples()
|
---|
| 1976 | {
|
---|
[2820] | 1977 | float scale = 1.0f / (float)NUM_SAMPLES;
|
---|
| 1978 |
|
---|
[2829] | 1979 | ////////
|
---|
| 1980 | //-- generate uniformly distributed spherical samples
|
---|
| 1981 |
|
---|
[2820] | 1982 | for (int i = 0; i < NUM_SAMPLES; ++ i)
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[2809] | 1983 | {
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| 1984 | // create stratified samples over sphere
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[2820] | 1985 | const float rx = ((float)i + RandomValue(0, 1)) * scale;
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[2826] | 1986 | const float ry = ((float)i + RandomValue(0, 1)) * scale;
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[2809] | 1987 |
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| 1988 | const float theta = 2.0f * acos(sqrt(1.0f - rx));
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[2826] | 1989 | const float phi = 2.0f * M_PI * ry;
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| 1990 |
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| 1991 | Vector3 unit = Vector3(sin(theta) * cos(phi), sin(theta) * sin(phi), cos(theta));
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| 1992 |
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[2829] | 1993 | //////
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| 1994 | //-- we sample in texture space => store 2D component
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| 1995 |
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| 1996 | // q: project to plane or just drop z?
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[2826] | 1997 | Vector3 proj = unit / (1.0f + fabs(unit.z));
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[2829] | 1998 | //Vector3 proj = unit;
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[2826] | 1999 |
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| 2000 | samples[i + 0] = proj.x;
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| 2001 | samples[i + 1] = proj.y;
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[2829] | 2002 | //cout << samples[i] << " " << samples[i + 1] << endl;
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[2826] | 2003 | }
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| 2004 | }
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| 2005 |
|
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| 2006 |
|
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[2809] | 2007 | void ComputeViewVectors(Vector3 &tl, Vector3 &tr, Vector3 &bl, Vector3 &br)
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| 2008 | {
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| 2009 | float myfov = fov * M_PI / 180.0f;
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| 2010 | const float h_far = 2.0f * tan(myfov / 2.0f);
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| 2011 | const float w_far = h_far * texWidth / texHeight;
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| 2012 |
|
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| 2013 | float t1 = h_far * 0.5f;
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| 2014 | float t2 = w_far * 0.5f;
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| 2015 |
|
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| 2016 | bl = Normalize(Vector3(-t1, -t2, 1.0f));
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| 2017 | br = Normalize(Vector3( t1, -t2, 1.0f));
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| 2018 | tl = Normalize(Vector3(-t1, t2, 1.0f));
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| 2019 | tr = Normalize(Vector3( t1, t2, 1.0f));
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| 2020 |
|
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| 2021 | // normalize to 0 .. 1
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| 2022 | bl = bl * 0.5f + 0.5f;
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| 2023 | br = br * 0.5f + 0.5f;
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| 2024 | tl = tl * 0.5f + 0.5f;
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| 2025 | tr = tr * 0.5f + 0.5f;
|
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| 2026 | }
|
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| 2027 |
|
---|
| 2028 |
|
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[2810] | 2029 | void CreateNoiseTex2D()
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| 2030 | {
|
---|
[2825] | 2031 | randomNormals = new GLubyte[texWidth * texHeight * 3];
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[2810] | 2032 |
|
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[2825] | 2033 | for (int i = 0; i < texWidth * texHeight * 3; i += 3)
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[2810] | 2034 | {
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| 2035 | // create random samples over sphere
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---|
| 2036 | const float rx = RandomValue(0, 1);
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| 2037 | const float theta = 2.0f * acos(sqrt(1.0f - rx));
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| 2038 |
|
---|
[2817] | 2039 | randomNormals[i + 0] = (GLubyte)((cos(theta) * 0.5f + 0.5f) * 255.0f);
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| 2040 | randomNormals[i + 1] = (GLubyte)((sin(theta) * 0.5f + 0.5f) * 255.0f);
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| 2041 | randomNormals[i + 2] = 0;
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[2810] | 2042 | }
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| 2043 |
|
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| 2044 | glEnable(GL_TEXTURE_2D);
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| 2045 | glGenTextures(1, &noiseTex);
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| 2046 | glBindTexture(GL_TEXTURE_2D, noiseTex);
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[2825] | 2047 |
|
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[2817] | 2048 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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| 2049 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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[2810] | 2050 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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| 2051 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
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| 2052 |
|
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[2825] | 2053 | //glTexImage2D(GL_RGBA, 0, GL_RGBA, texWidth, texHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, randomNormals);
|
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| 2054 | gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGB, texWidth, texHeight, GL_RGB, GL_UNSIGNED_BYTE, randomNormals);
|
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| 2055 |
|
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[2810] | 2056 | glBindTexture(GL_TEXTURE_2D, 0);
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| 2057 | glDisable(GL_TEXTURE_2D);
|
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| 2058 |
|
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| 2059 | cout << "created noise texture" << endl;
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| 2060 | PrintGLerror("noisetexture");
|
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| 2061 | }
|
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