1 | #include "dxstdafx.h"
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2 | #include ".\pathmapeffect.h"
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3 | #include "Material.hpp"
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4 | #include "TexturedMaterial.h"
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5 | #include "WoodMaterial.hpp"
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6 | #include "TriangleMesh.h"
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7 | #include "Transformed.h"
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8 | #include "Entity.h"
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9 | #include "DepthRenderStrategy.h"
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10 | #include "FinalCompositionRenderStrategy.h"
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11 | #include "SubEntity.h"
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12 | #include "Entity.h"
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13 | #include "Mesh.h"
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14 | #include "L.h"
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15 | #include "shlwapi.h"
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16 | #include <queue>
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17 | #include <fstream>
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18 |
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19 | #define MAXNCLUSTERS 512
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20 | //#define GENERATE_PATH_MAPS
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21 |
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22 | //! D3D vector-matrix multiplication
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23 | D3DVECTOR operator *(const D3DVECTOR& v, const D3DMATRIX& m)
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24 | {
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25 | D3DVECTOR r;
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26 | r.x = v.x * m._11 + v.y * m._21 + v.z * m._31 + m._41;
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27 | r.y = v.x * m._12 + v.y * m._22 + v.z * m._32 + m._42;
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28 | r.z = v.x * m._13 + v.y * m._23 + v.z * m._33 + m._43;
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29 | float h = v.x * m._14 + v.y * m._24 + v.z * m._34 + m._44;
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30 | if(h > 0.00001f || h < 0.00001f)
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31 | {
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32 | r.x /= h;
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33 | r.y /= h;
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34 | r.z /= h;
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35 | }
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36 | return r;
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37 | }
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38 |
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39 | //! method name strings to be displayed on screen
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40 | const wchar_t* PathMapEffect::Method::methodNames[10] =
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41 | {
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42 | L"PRM",
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43 | L"PRM texture",
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44 | L"_",
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45 | L"_"
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46 | , NULL, NULL, NULL, NULL, NULL, NULL
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47 | };
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48 |
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49 | //! method constants
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50 | const PathMapEffect::Method PathMapEffect::Method::PRM(0);
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51 | const PathMapEffect::Method PathMapEffect::Method::SHOWTEX(1);
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52 | const PathMapEffect::Method PathMapEffect::Method::LAST(2);
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53 |
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54 | //! constructor
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55 | PathMapEffect::PathMapEffect(LPDIRECT3DDEVICE9 device,
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56 | char* prmDirectory,
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57 | char* meshDirectory,
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58 | char* mediaDirectory,
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59 | char* levelFileName,
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60 | char* materialFileName,
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61 | bool segmentMeshes,
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62 | bool computePRM,
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63 | unsigned int nEntryPoints,
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64 | unsigned int nClusters,
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65 | unsigned int depthMapResolution
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66 | )
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67 | :method(Method::PRM)
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68 | {
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69 | testClusterId = 0;
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70 |
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71 | NRADIONS = 4096 * (nEntryPoints / 4096);
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72 | NCLUSTERS = nClusters;
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73 | DEPTHMAPRES = depthMapResolution;
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74 | this->SEGMENTMESHES = segmentMeshes;
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75 |
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76 | weights = new float[NCLUSTERS];
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77 | clusterLenghts = new unsigned int[NCLUSTERS];
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78 |
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79 | clusterSweepCurrentIndex = 0;
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80 |
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81 | rayId = 1;
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82 | this->device = device;
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83 |
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84 | //first person camera allows more freedom of movement
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85 | camera = new CFirstPersonCamera();
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86 | lightCamera = new CFirstPersonCamera();
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87 |
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88 | HRESULT hr;
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89 | DWORD effectCompileFlag=0;
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90 |
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91 | LPD3DXBUFFER compilationErrors;
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92 | if(FAILED(
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93 | hr =
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94 | D3DXCreateEffectFromFile(
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95 | device,
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96 | L"pathMap.fx",
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97 | NULL,
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98 | NULL,
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99 | 0,
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100 | NULL,
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101 | &effect,
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102 | &compilationErrors) )){
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103 | MessageBoxA( NULL, (LPSTR)compilationErrors->GetBufferPointer(), "Failed to load effect file!", MB_OK);
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104 | exit(-1);
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105 | }
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106 |
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107 | //store buffers so we can reset them after rendering to texture render targets
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108 | device->GetRenderTarget(0, &frameColorBuffer);
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109 | device->GetDepthStencilSurface(&frameDepthStencilBuffer);
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110 |
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111 | wcscpy(this->mediaDirectory, L::l+mediaDirectory);
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112 | wcscpy(this->meshDirectory, L::l+meshDirectory);
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113 | wcscpy(this->prmDirectory, L::l+prmDirectory);
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114 |
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115 | //load empty texture
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116 | wcscpy(this->levelFileName, L::l+mediaDirectory);
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117 | wcscat(this->levelFileName, L"\\");
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118 | wcscat(this->levelFileName, L::l+levelFileName);
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119 |
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120 | wcscpy(this->materialFileName, L::l+mediaDirectory);
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121 | wcscat(this->materialFileName, L"\\");
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122 | wcscat(this->materialFileName, L::l+materialFileName);
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123 |
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124 | wchar_t emptyTextureName[256];
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125 | wcscpy(emptyTextureName, L::l+mediaDirectory);
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126 | wcscat(emptyTextureName, L"\\");
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127 | wcscat(emptyTextureName, L"empty.bmp");
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128 |
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129 | D3DXCreateTextureFromFile(device, emptyTextureName, &emptyTexture);
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130 |
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131 | //set up a scene
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132 |
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133 | xMaterials = XMLNode::openFileHelper(this->materialFileName, L"materials");
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134 | // loadScene("media\\space.txt");
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135 | loadScene(LC::c-this->levelFileName);
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136 |
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137 | // loadMesh( L"media\\fighter.x", 0, "", 1);
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138 |
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139 | //compute the surface area of the complete geometry. useful for random sampling.
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140 | sumSurfaceArea = 0.0;
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141 | std::vector<Entity*>::iterator entityIterator = entities.begin();
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142 | while(entityIterator != entities.end())
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143 | {
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144 | sumSurfaceArea += (*entityIterator)->getSurfaceArea();
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145 | entityIterator++;
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146 | }
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147 |
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148 | //initialize camera
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149 | // camera->SetViewParams( &D3DXVECTOR3(0.0f, 0.0f, 4.0f), &D3DXVECTOR3(0.0f, 0.0f, 0.0f));
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150 | camera->SetViewParams( &D3DXVECTOR3(0.0f, 0.0f, 0.0f), &D3DXVECTOR3(0.0f, 0.0f, 1.0f));
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151 | D3DSURFACE_DESC fbdesc;
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152 | frameColorBuffer->GetDesc(&fbdesc);
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153 | camera->SetProjParams( D3DX_PI/2, (float)fbdesc.Width / fbdesc.Height, 0.1f, 300.0f );
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154 |
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155 | //set up spotlight
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156 | lightCamera->SetViewParams( &D3DXVECTOR3(5.0f, 0.0f, 0.0f), &D3DXVECTOR3(0.0f, 0.0f, 0.0f));
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157 | lightCamera->SetProjParams( D3DX_PI/1.9, 1.0f, 0.1f, 300.0f );
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158 |
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159 | //create ray tracing kd-tree containing ray-traceable versions of entities
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160 | {
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161 | std::vector<Intersectable*> rayTraceEntities;
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162 | std::vector<Entity*>::iterator entityIterator = entities.begin();
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163 | while(entityIterator != entities.end())
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164 | {
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165 | (*entityIterator)->gatherRayTraceEntities(rayTraceEntities);
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166 | entityIterator++;
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167 | }
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168 | Intersectable** objs = (Intersectable**)&*rayTraceEntities.begin();
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169 | kdtree = new KDTree(objs, rayTraceEntities.size());
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170 | }
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171 |
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172 | //create dummy render target texture for depth map rendering
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173 | device->CreateTexture(DEPTHMAPRES, DEPTHMAPRES, 1, D3DUSAGE_RENDERTARGET, D3DFMT_R32F, D3DPOOL_DEFAULT, &fakeTexture, NULL);
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174 | fakeTexture->GetSurfaceLevel(0, &fakeSurface);
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175 |
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176 | //create a depthstencil texture for depth map rendering
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177 | device->CreateTexture(DEPTHMAPRES, DEPTHMAPRES, 1,
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178 | D3DUSAGE_DEPTHSTENCIL, D3DFMT_D24X8, D3DPOOL_DEFAULT, &depthMapTexture, NULL);
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179 | depthMapTexture->GetSurfaceLevel(0, &depthMapDepthStencilBuffer);
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180 |
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181 | if(computePRM)
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182 | precompute();
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183 | else
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184 | loadPathMaps();
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185 |
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186 | if(computePRM || segmentMeshes)
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187 | saveScene("processedMeshes\\processed.level");
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188 |
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189 | //create a texture for radion data (will be used for weight computations on the GPU)
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190 | device->CreateTexture(2 * NRADIONS / 4096, 4096, 1, 0, D3DFMT_A32B32G32R32F, D3DPOOL_DEFAULT, &radionTexture, NULL);
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191 | radionTexture->GetSurfaceLevel(0, &radionSurface);
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192 |
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193 | //fill texture with data
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194 | uploadRadions();
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195 |
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196 | //create weights render target
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197 | device->CreateTexture(4096, NRADIONS / 4096, 1, D3DUSAGE_RENDERTARGET, D3DFMT_R32F, D3DPOOL_DEFAULT, &weightsTexture, NULL);
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198 | weightsTexture->GetSurfaceLevel(0, &weightsSurface);
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199 |
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200 | //create a sytem memory duplicate of the weights render target to be able to read back weights data
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201 | device->CreateTexture(4096, NRADIONS / 4096, 1, 0, D3DFMT_R32F, D3DPOOL_SYSTEMMEM, &sysMemWeightsTexture, NULL);
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202 | sysMemWeightsTexture->GetSurfaceLevel(0, &sysMemWeightsSurface);
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203 |
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204 | //create aggr weights render target
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205 | device->CreateTexture(MAXNCLUSTERS, 1, 1, D3DUSAGE_RENDERTARGET, D3DFMT_R32F, D3DPOOL_DEFAULT, &aggrWeightsTexture, NULL);
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206 | aggrWeightsTexture->GetSurfaceLevel(0, &aggrWeightsSurface);
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207 |
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208 | //create a vertex buffer to be able to visualize entry radion positions
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209 | device->CreateVertexBuffer(NRADIONS * sizeof(float) * 6, D3DUSAGE_WRITEONLY, D3DFVF_XYZ | D3DFVF_NORMAL, D3DPOOL_DEFAULT,
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210 | &starterVertexBuffer, NULL);
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211 | void* pData;
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212 | starterVertexBuffer->Lock(0, 0, &pData, 0);
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213 | fillRadionPosArray(pData);
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214 | starterVertexBuffer->Unlock();
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215 |
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216 | if(computePRM)
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217 | savePathMaps();
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218 | }
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219 |
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220 | PathMapEffect::~PathMapEffect(void)
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221 | {
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222 | delete weights;
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223 | delete clusterLenghts;
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224 |
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225 | //release all resources allocated in the constructor
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226 | starterVertexBuffer->Release();
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227 |
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228 | depthMapTexture->Release();
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229 | depthMapDepthStencilBuffer->Release();
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230 | fakeTexture->Release();
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231 | fakeSurface->Release();
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232 |
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233 | sysMemWeightsTexture->Release();
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234 | sysMemWeightsSurface->Release();
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235 | weightsTexture->Release();
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236 | weightsSurface->Release();
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237 | aggrWeightsTexture->Release();
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238 | aggrWeightsSurface->Release();
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239 | radionTexture->Release();
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240 | radionSurface->Release();
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241 |
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242 | delete kdtree;
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243 | emptyTexture->Release();
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244 | releaseTextures();
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245 | releaseMeshes();
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246 | releaseEntities();
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247 |
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248 | frameColorBuffer->Release();
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249 | frameDepthStencilBuffer->Release();
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250 |
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251 | effect->Release();
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252 | delete camera;
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253 | delete lightCamera;
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254 | }
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255 |
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256 | void PathMapEffect::loadMesh(DWORD fileType, LPCWSTR fileName, LPCWSTR ogreName, int prmAtlasSize, const char* name, int dividePcs, bool generateUV, bool generateTBN)
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257 | {
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258 | wchar_t mFileName[512];
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259 | wcscpy(mFileName, this->mediaDirectory);
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260 | wcscat(mFileName, L"\\");
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261 | wcscat(mFileName, fileName);
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262 | Mesh* mesh = new Mesh(this, fileType, mFileName, ogreName, prmAtlasSize, name, dividePcs, generateUV, generateTBN);
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263 | meshes.push_back(mesh);
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264 | }
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265 |
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266 | LPDIRECT3DTEXTURE9 PathMapEffect::loadTexture(LPCWSTR fileName, Material** rayTraceMaterial)
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267 | {
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268 | if(fileName == NULL || wcscmp(fileName, L"") == 0)
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269 | return NULL;
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270 | int texIndex = 0;
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271 | std::vector<wchar_t*>::iterator nameIterator = materialTextureFileNames.begin();
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272 | while(nameIterator != materialTextureFileNames.end())
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273 | {
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274 | if(wcscmp( *nameIterator, fileName) == 0)
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275 | {
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276 | *rayTraceMaterial = rayTraceMaterials.at(texIndex);
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277 | return materialTextures.at(texIndex);
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278 | }
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279 | nameIterator++;
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280 | texIndex++;
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281 | }
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282 | wchar_t* mediaFileName = new wchar_t[wcslen(fileName) + 64];
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283 | //we assume the x file is the media folder
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284 | wcscpy(mediaFileName, this->mediaDirectory);
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285 | wcscat(mediaFileName, L"\\");
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286 | wcscat(mediaFileName, fileName);
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287 | LPDIRECT3DTEXTURE9 tex;
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288 |
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289 | D3DXIMAGE_INFO bobo;
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290 | if(S_OK !=
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291 | D3DXCreateTextureFromFileEx(device, mediaFileName, D3DX_DEFAULT, D3DX_DEFAULT, 1, 0,
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292 | D3DFMT_FROM_FILE, D3DPOOL_MANAGED, D3DX_DEFAULT, D3DX_DEFAULT, 0, &bobo, NULL, &tex
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293 | ))
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294 | {
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295 | MessageBox(NULL, mediaFileName, L"Could not load texture file!", MB_OK);
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296 | return NULL;
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297 | }
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298 |
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299 | delete mediaFileName;
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300 |
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301 | materialTextures.push_back(tex);
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302 | wchar_t* storedName = new wchar_t[wcslen(fileName)+1];
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303 | wcscpy(storedName, fileName);
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304 | materialTextureFileNames.push_back(storedName);
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305 |
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306 | if(rayTraceMaterial != NULL)
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307 | {
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308 | D3DLOCKED_RECT lrect;
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309 | HRESULT hr = tex->LockRect(0, &lrect, NULL, D3DLOCK_READONLY);
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310 | LPDIRECT3DSURFACE9 texsurf;
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311 | tex->GetSurfaceLevel(0, &texsurf);
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312 | D3DSURFACE_DESC desc;
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313 | texsurf->GetDesc(&desc);
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314 | *rayTraceMaterial = new TexturedMaterial(lrect.pBits, lrect.Pitch, desc.Width);
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315 | texsurf->Release();
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316 | tex->UnlockRect(0);
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317 | }
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318 | rayTraceMaterials.push_back(*rayTraceMaterial);
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319 |
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320 | return tex;
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321 | }
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322 |
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323 | void PathMapEffect::releaseTextures()
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324 | {
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325 | std::vector<LPDIRECT3DTEXTURE9>::iterator i = materialTextures.begin();
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326 | while(i != materialTextures.end())
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327 | {
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328 | (*i)->Release();
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329 | i++;
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330 | }
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331 |
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332 | std::vector<Material*>::iterator z = rayTraceMaterials.begin();
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333 | while(z != rayTraceMaterials.end())
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334 | {
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335 | delete (*z);
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336 | z++;
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337 | }
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338 |
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339 | std::vector<wchar_t*>::iterator c = materialTextureFileNames.begin();
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340 | while(c != materialTextureFileNames.end())
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341 | {
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342 | delete [] (*c);
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343 | c++;
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344 | }
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345 | }
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346 |
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347 | void PathMapEffect::releaseMeshes()
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348 | {
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349 | std::vector<Mesh*>::iterator i = meshes.begin();
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350 | while(i != meshes.end())
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351 | {
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352 | delete *i;
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353 | i++;
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354 | }
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355 | }
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356 |
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357 | void PathMapEffect::renderWithPRM()
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358 | {
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359 | // 1. pass: render depth
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360 | DepthRenderStrategy depthRenderStrategy(this);
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361 |
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362 | depthRenderStrategy.camera = *lightCamera;
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363 | renderScene(depthRenderStrategy);
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364 |
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365 | // 2. pass: compute weights
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366 |
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367 | // simple parallel computation for all pixels: no 3D, depth, shadows, only a full-texture quad
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368 | HRESULT hr = device->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);
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369 | hr = device->SetRenderState(D3DRS_STENCILENABLE, false);
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370 | hr = device->SetRenderTarget(0,weightsSurface);
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371 | hr = device->SetDepthStencilSurface(NULL);
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372 | D3DXVECTOR3 lightPos = *lightCamera->GetEyePt();
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373 | D3DXVECTOR3 lightDir = *lightCamera->GetWorldAhead();
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374 | lightDir /= D3DXVec3Length( &lightDir );
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375 | float ffl = parameters->Get(fLightScale) * 10.0f;
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376 | D3DXVECTOR3 lightPower(ffl, ffl, ffl);
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377 |
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378 | device->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0 );
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379 |
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380 | if( SUCCEEDED( device->BeginScene() ) ){
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381 | if( effect != NULL ){
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382 | D3DXHANDLE hTechnique = NULL;
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383 | hTechnique = effect->GetTechniqueByName((LPSTR)"ComputeWeights");
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384 | if(hTechnique==NULL){
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385 | return;
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386 | }
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387 | effect->SetTechnique( hTechnique );
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388 |
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389 | UINT nPasses = 0;
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390 | effect->Begin( &nPasses, 0 );
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391 | for(UINT j=0;j<nPasses;j++){
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392 | effect->BeginPass(j);
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393 | hr = effect->SetTexture("radions", radionTexture);
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394 | static float opttme[9] = {0.5f, 0.0f, 0.0f,
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395 | 0.0f, -0.5f, 0.0f,
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396 | 0.5f + (0.5f / DEPTHMAPRES), 0.5f + (0.5f / DEPTHMAPRES), 1.0f};
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397 |
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398 | //set global params
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399 | effect->SetFloatArray("occProjToTexMatrix", opttme, 9);
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400 | effect->SetMatrix("occWorldToProjMatrix", &(*lightCamera->GetViewMatrix() * *lightCamera->GetProjMatrix()));
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401 |
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402 | effect->SetTexture("depthMap", depthMapTexture);
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403 | hr = effect->SetInt("nRadionColumns", NRADIONS / 4096);
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404 | hr = effect->SetFloatArray("lightPower", (float*)&lightPower, 3);
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405 | hr = effect->SetFloatArray("lightPos", (float*)&lightPos, 3);
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406 | hr = effect->SetFloatArray("lightDir", (float*)&lightDir, 3);
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407 | effect->CommitChanges();
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408 | renderFullScreen();
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409 | effect->EndPass();
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410 | }
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411 | effect->End();
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412 | }
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413 | device->EndScene();
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414 | }
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415 |
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416 | // read the weights back
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417 |
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418 | D3DLOCKED_RECT rData;
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419 | hr = device->GetRenderTargetData(weightsSurface, sysMemWeightsSurface);
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420 | hr = sysMemWeightsSurface->LockRect(&rData, NULL, D3DLOCK_READONLY);
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421 | float* allEntryWeights = (float*)rData.pBits;
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422 |
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423 | // average weights per cluster
|
---|
424 | float sumWeightsAll = 0.0;
|
---|
425 | unsigned int iRadion = 0;
|
---|
426 | for(int iCluster=0; iCluster < NCLUSTERS; iCluster++)
|
---|
427 | {
|
---|
428 | weights[iCluster] = 0.0;
|
---|
429 | float clusterrad = 0.0;
|
---|
430 | for(int clusterSummer=0; clusterSummer < clusterLenghts[iCluster]; clusterSummer++, iRadion++)
|
---|
431 | {
|
---|
432 | float radrad = bushStarters[iRadion].radiance.sum();
|
---|
433 | weights[iCluster] += allEntryWeights[iRadion] * radrad;
|
---|
434 | clusterrad += radrad;
|
---|
435 | }
|
---|
436 | if(clusterrad > 0.01)
|
---|
437 | weights[iCluster] /= clusterrad; //(double)clusterLenghts[iCluster];
|
---|
438 | else
|
---|
439 | weights[iCluster] = 0.0f;
|
---|
440 | // if(iCluster != TEST_CLUST)
|
---|
441 | // weights[iCluster] = 0.0;
|
---|
442 | // if(weights[iCluster] > 0.005)
|
---|
443 | // weights[iCluster] = 0.005;
|
---|
444 | sumWeightsAll += weights[iCluster];
|
---|
445 | }
|
---|
446 | sysMemWeightsSurface->UnlockRect();
|
---|
447 |
|
---|
448 | // use backface culling, depth test
|
---|
449 | hr = device->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW);
|
---|
450 | hr = device->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE);
|
---|
451 |
|
---|
452 | /* for(int testi=0; testi < NCLUSTERS; testi++)
|
---|
453 | weights[testi] = 0.000;
|
---|
454 | weights[testClusterId] = 0.05;*/
|
---|
455 |
|
---|
456 | // 3. pass: render scene using weights to combine PRM texture atlases
|
---|
457 |
|
---|
458 | FinalCompositionRenderStrategy finalCompositionRenderStrategy(this);
|
---|
459 | finalCompositionRenderStrategy.lightDir = lightDir;
|
---|
460 | finalCompositionRenderStrategy.lightPos = lightPos;
|
---|
461 | finalCompositionRenderStrategy.lightPower = lightPower;
|
---|
462 |
|
---|
463 | renderScene(finalCompositionRenderStrategy);
|
---|
464 |
|
---|
465 |
|
---|
466 | /* if(!parameters->Get(bLookFromLight))
|
---|
467 | if( SUCCEEDED( device->BeginScene() ) )
|
---|
468 | {
|
---|
469 | effect->SetTechnique("torch");
|
---|
470 | UINT nPasses;
|
---|
471 | effect->Begin(&nPasses, 0);
|
---|
472 | effect->BeginPass(0);
|
---|
473 |
|
---|
474 | D3DXMATRIX scaleShip;
|
---|
475 | D3DXMatrixScaling(&scaleShip, 0.05f, 0.05f, 0.05f);
|
---|
476 |
|
---|
477 | effect->SetTexture("brdfMap", meshes.at(meshes.size()-1)->->textures[0]);
|
---|
478 | effect->SetMatrix("modelToProjMatrix", &(scaleShip * *lightCamera->GetWorldMatrix() * *camera->GetViewMatrix() * *camera->GetProjMatrix() ));
|
---|
479 |
|
---|
480 | effect->CommitChanges();
|
---|
481 | renderMeshes[renderMeshes.size()-1]->mesh->DrawSubset(0);
|
---|
482 |
|
---|
483 | effect->EndPass();
|
---|
484 | effect->End();
|
---|
485 | device->EndScene();
|
---|
486 | }
|
---|
487 | */
|
---|
488 | }
|
---|
489 |
|
---|
490 | void PathMapEffect::renderFullScreen(float depth)
|
---|
491 | {
|
---|
492 | float fLeftU = 0.0f, fTopV = 0.0f, fRightU = 1.0f, fBottomV = 1.0f;
|
---|
493 |
|
---|
494 | D3DSURFACE_DESC dtdsdRT;
|
---|
495 | PDIRECT3DSURFACE9 pSurfRT;
|
---|
496 |
|
---|
497 | // Acquire render target width and height
|
---|
498 | device->GetRenderTarget(0, &pSurfRT);
|
---|
499 | pSurfRT->GetDesc(&dtdsdRT);
|
---|
500 | pSurfRT->Release();
|
---|
501 |
|
---|
502 | // Ensure that we're directly mapping texels to pixels by offset by 0.5
|
---|
503 | // For more info see the doc page titled "Directly Mapping Texels to Pixels"
|
---|
504 | FLOAT fWidth5 = (FLOAT)dtdsdRT.Width - 0.5f;
|
---|
505 | FLOAT fHeight5 = (FLOAT)dtdsdRT.Height - 0.5f;
|
---|
506 |
|
---|
507 | // Draw the quad
|
---|
508 | struct D3DVERTEXQUAD{
|
---|
509 | D3DXVECTOR3 pos;
|
---|
510 | D3DXVECTOR2 tex0;
|
---|
511 | };
|
---|
512 |
|
---|
513 | D3DVERTEXQUAD svQuad[4];
|
---|
514 |
|
---|
515 | svQuad[0].pos=D3DXVECTOR3(-1, 1, depth);
|
---|
516 | svQuad[0].tex0 = D3DXVECTOR2(fLeftU, fTopV);
|
---|
517 |
|
---|
518 | svQuad[1].pos = D3DXVECTOR3(1, 1, depth);
|
---|
519 | svQuad[1].tex0 = D3DXVECTOR2(fRightU, fTopV);
|
---|
520 |
|
---|
521 | svQuad[2].pos = D3DXVECTOR3(-1, -1, depth);
|
---|
522 | svQuad[2].tex0 = D3DXVECTOR2(fLeftU, fBottomV);
|
---|
523 |
|
---|
524 | svQuad[3].pos = D3DXVECTOR3(1, -1, depth);
|
---|
525 | svQuad[3].tex0 = D3DXVECTOR2(fRightU, fBottomV);
|
---|
526 |
|
---|
527 | device->SetRenderState(D3DRS_CULLMODE,D3DCULL_NONE);
|
---|
528 | device->SetFVF(D3DFVF_XYZ | D3DFVF_TEX1 | D3DFVF_TEXCOORDSIZE2(0));
|
---|
529 | device->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, svQuad, sizeof(D3DVERTEXQUAD));
|
---|
530 | }
|
---|
531 |
|
---|
532 | void PathMapEffect::move(float fElapsedTime)
|
---|
533 | {
|
---|
534 | clusterSweepCurrentIndex += fElapsedTime * 2.0f;
|
---|
535 | if(clusterSweepCurrentIndex > NCLUSTERS)
|
---|
536 | clusterSweepCurrentIndex -= NCLUSTERS;
|
---|
537 | //apply some rotation to one of the entities
|
---|
538 | if(parameters->Get(bTurbo))
|
---|
539 | {
|
---|
540 | camera->FrameMove(fElapsedTime * 10.0f);
|
---|
541 | lightCamera->FrameMove(fElapsedTime * 10.0f);
|
---|
542 | }
|
---|
543 | else
|
---|
544 | {
|
---|
545 | camera->FrameMove(fElapsedTime);
|
---|
546 | lightCamera->FrameMove(fElapsedTime);
|
---|
547 | }
|
---|
548 | }
|
---|
549 |
|
---|
550 | LRESULT PathMapEffect::handleMessage( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
---|
551 | {
|
---|
552 | if(uMsg == WM_KEYDOWN)
|
---|
553 | {
|
---|
554 | switch(wParam)
|
---|
555 | {
|
---|
556 | case 'C':
|
---|
557 | testClusterId = (testClusterId + NCLUSTERS - 1) % NCLUSTERS;
|
---|
558 | break;
|
---|
559 | case 'Z':
|
---|
560 | testClusterId = (testClusterId + 1) % NCLUSTERS;
|
---|
561 | break;
|
---|
562 | }
|
---|
563 | }
|
---|
564 |
|
---|
565 | if(parameters->Get(bMoveLight))
|
---|
566 | return lightCamera->HandleMessages(hWnd, uMsg, wParam, lParam);
|
---|
567 | else
|
---|
568 | return camera->HandleMessages(hWnd, uMsg, wParam, lParam);
|
---|
569 |
|
---|
570 | }
|
---|
571 |
|
---|
572 | void PathMapEffect::addUiParameters(Parameters* parameters)
|
---|
573 | {
|
---|
574 | PathMapEffect::parameters = parameters;
|
---|
575 | parameters->Add( bLookFromLight, "Look from light", 1);
|
---|
576 | parameters->Add( bMoveLight, "Move light", 1);
|
---|
577 | parameters->Add( bDots, "Entry points", 1);
|
---|
578 | parameters->Add( bTurbo, "Turbo", 1);
|
---|
579 | parameters->Add( fLightScale, "Tone scale", 100, '1', '2', convertLightScale);
|
---|
580 | parameters->Add( fIndirectLightingMode, "Lighting mode", 3, '3', '4', convertInt4);
|
---|
581 | parameters->Add( fTorchDistance, "Torch distance", 100, '5', '6', convertTorchDistance);
|
---|
582 | }
|
---|
583 |
|
---|
584 | void PathMapEffect::setUiParameterDefaults(Parameters* parameters)
|
---|
585 | {
|
---|
586 | }
|
---|
587 |
|
---|
588 | Parameters* PathMapEffect::parameters = NULL;
|
---|
589 |
|
---|
590 | void PathMapEffect::render()
|
---|
591 | {
|
---|
592 | renderWithPRM();
|
---|
593 | if(parameters->Get(bDots))
|
---|
594 | {
|
---|
595 | float psf = 8.0f;
|
---|
596 | HRESULT hr = device->SetRenderState(D3DRS_POINTSIZE, *((DWORD*)&psf));
|
---|
597 | hr = device->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE);
|
---|
598 | if( SUCCEEDED( device->BeginScene() ) )
|
---|
599 | {
|
---|
600 | D3DXHANDLE hTechnique = NULL;
|
---|
601 | hTechnique = effect->GetTechniqueByName((LPSTR)"Dots");
|
---|
602 | effect->SetTechnique( hTechnique );
|
---|
603 | UINT nPasses = 0;
|
---|
604 | effect->Begin( &nPasses, 0 );
|
---|
605 | for(UINT j=0;j<nPasses;j++){
|
---|
606 | effect->BeginPass(j);
|
---|
607 | hr = effect->SetTexture("depthMap",depthMapTexture);
|
---|
608 | if(parameters->Get(bLookFromLight))
|
---|
609 | effect->SetMatrix("worldToProjMatrix", &(*lightCamera->GetViewMatrix() * *lightCamera->GetProjMatrix() ));
|
---|
610 | else
|
---|
611 | effect->SetMatrix("worldToProjMatrix", &(*camera->GetViewMatrix() * *camera->GetProjMatrix() ));
|
---|
612 |
|
---|
613 | static float opttme[9] = {0.5f, 0.0f, 0.0f,
|
---|
614 | 0.0f, -0.5f, 0.0f,
|
---|
615 | 0.5f + (0.5f / DEPTHMAPRES), 0.5f + (0.5f / DEPTHMAPRES), 1.0f};
|
---|
616 |
|
---|
617 | effect->SetFloatArray("occProjToTexMatrix", opttme, 9);
|
---|
618 | D3DXVECTOR3 lightPos = *lightCamera->GetEyePt();
|
---|
619 | hr = effect->SetFloatArray("lightPos", (float*)&lightPos, 3);
|
---|
620 | effect->CommitChanges();
|
---|
621 | hr = device->SetFVF(D3DFVF_XYZ | D3DFVF_NORMAL);
|
---|
622 | hr = device->SetStreamSource(0, starterVertexBuffer, 0, sizeof(float) * 6);
|
---|
623 | UINT offset = 0;
|
---|
624 | for(int iClusterDraw=0; iClusterDraw < NCLUSTERS; iClusterDraw++)
|
---|
625 | {
|
---|
626 | // hr = effect->SetFloat("aClusterWeight", weights[iClusterDraw] * 10.0);
|
---|
627 | hr = effect->SetFloat("aClusterWeight", (float)iClusterDraw);
|
---|
628 | effect->CommitChanges();
|
---|
629 | // if(iClusterDraw - clusterSweepCurrentIndex > -1.0 &&
|
---|
630 | // iClusterDraw - clusterSweepCurrentIndex < 0.0 )
|
---|
631 | // if(iClusterDraw == testClusterId)
|
---|
632 | device->DrawPrimitive(D3DPT_POINTLIST, offset, clusterLenghts[iClusterDraw]);
|
---|
633 | offset += clusterLenghts[iClusterDraw];
|
---|
634 | }
|
---|
635 | effect->EndPass();
|
---|
636 | }
|
---|
637 | effect->End();
|
---|
638 | }
|
---|
639 | device->EndScene();
|
---|
640 | }
|
---|
641 | }
|
---|
642 |
|
---|
643 | void PathMapEffect::releaseEntities()
|
---|
644 | {
|
---|
645 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
646 | while(entityIterator != entities.end())
|
---|
647 | {
|
---|
648 | delete *entityIterator;
|
---|
649 | entityIterator++;
|
---|
650 | }
|
---|
651 | }
|
---|
652 |
|
---|
653 | void PathMapEffect::sampleSphereDirection(Vector& outDir)
|
---|
654 | {
|
---|
655 | do{
|
---|
656 | outDir = Vector(-1.0 + 2.0 * (float)rand() / RAND_MAX, -1.0 + 2.0 * (float)rand() / RAND_MAX, -1.0 + 2.0 * (float)rand() / RAND_MAX);
|
---|
657 | }while(outDir.norm2() > 1.0);
|
---|
658 | outDir.normalize();
|
---|
659 | }
|
---|
660 |
|
---|
661 | void PathMapEffect::sampleShootingDiffuseDirection(int depth, const Vector& normal, Vector& outDir)
|
---|
662 | {
|
---|
663 | Vector u, v;
|
---|
664 | if(fabsf(normal[0]) < 0.9f)
|
---|
665 | {
|
---|
666 | u.set(0.0f, -normal[2], normal[1]);
|
---|
667 | u *= 1.0f / sqrtf(normal[2] * normal[2] + normal[1] * normal[1]);
|
---|
668 | }
|
---|
669 | else
|
---|
670 | {
|
---|
671 | u.set(normal[2], 0.0f, -normal[0]);
|
---|
672 | u *= 1.0f / sqrtf(normal[2] * normal[2] + normal[0] * normal[0]);
|
---|
673 | }
|
---|
674 | v.setCrossProduct(normal, u);
|
---|
675 |
|
---|
676 | float phi = 2.0f * 3.14159265358979323846f * (float)rand() / RAND_MAX;
|
---|
677 | float xi2 = (float)rand() / RAND_MAX;
|
---|
678 | float cosPhi = cos(phi);
|
---|
679 | float sinPhi = sin(phi);
|
---|
680 | float cosTheta = sqrtf(xi2);
|
---|
681 | float sinTheta = sqrtf(1.0f - xi2);
|
---|
682 |
|
---|
683 | outDir.setScaled(sinTheta * cosPhi, v);
|
---|
684 | outDir.addScaled(sinTheta * sinPhi, u);
|
---|
685 | outDir.addScaled(cosTheta, normal);
|
---|
686 | }
|
---|
687 |
|
---|
688 | void PathMapEffect::precompute()
|
---|
689 | {
|
---|
690 | // generate entry points
|
---|
691 | for(unsigned int cRad=0; cRad < NRADIONS; cRad++)
|
---|
692 | {
|
---|
693 | Radion starter;
|
---|
694 | sampleSurfaceRadion(starter);
|
---|
695 | //sampleSurfaceRadionUniform(starter);
|
---|
696 | bushStarters.push_back(starter);
|
---|
697 | }
|
---|
698 |
|
---|
699 | // sort entry radions into clusters
|
---|
700 | Radion* entryArray = (Radion*)&*bushStarters.begin();
|
---|
701 | clusterRadions(entryArray, bushStarters.size(), 0);
|
---|
702 | clusterRadionsKMeans();
|
---|
703 |
|
---|
704 | // for every entity, find the most relevant clusters
|
---|
705 | srand(0xef23ab32);
|
---|
706 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
707 | while(entityIterator != entities.end())
|
---|
708 | {
|
---|
709 | (*entityIterator)->findNearClusters(bushStarters, NCLUSTERS);
|
---|
710 | (*entityIterator)->clearPRM();
|
---|
711 | entityIterator++;
|
---|
712 | }
|
---|
713 |
|
---|
714 | // for every entry radion, shoot a bush of radions, and add their
|
---|
715 | // contributions to all PRMs of all entities
|
---|
716 | unsigned int iCluster = 0;
|
---|
717 | std::vector<Radion> bushRadions;
|
---|
718 | for(int iStarter = 0; iStarter < NRADIONS; )
|
---|
719 | {
|
---|
720 | bushRadions.clear();
|
---|
721 | for(int iric=0; iric < clusterLenghts[iCluster]; iric++, iStarter++)
|
---|
722 | shootRadionBush(bushStarters[iStarter], bushRadions);
|
---|
723 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
724 | while(entityIterator != entities.end())
|
---|
725 | {
|
---|
726 | (*entityIterator)->renderPRM(bushRadions, iCluster);
|
---|
727 | entityIterator++;
|
---|
728 | }
|
---|
729 | iCluster++;
|
---|
730 | }
|
---|
731 |
|
---|
732 | //scale down multiple pixel writes
|
---|
733 | entityIterator = entities.begin();
|
---|
734 | while(entityIterator != entities.end())
|
---|
735 | {
|
---|
736 | (*entityIterator)->normalizePRM();
|
---|
737 | entityIterator++;
|
---|
738 | }
|
---|
739 | }
|
---|
740 |
|
---|
741 | int compareX(const void* a, const void* b)
|
---|
742 | {
|
---|
743 | if( ((const Radion*)a)->position.x < ((const Radion*)b)->position.x )
|
---|
744 | return -1;
|
---|
745 | else
|
---|
746 | return 1;
|
---|
747 | }
|
---|
748 |
|
---|
749 | int compareY(const void* a, const void* b)
|
---|
750 | {
|
---|
751 | if( ((const Radion*)a)->position.y < ((const Radion*)b)->position.y )
|
---|
752 | return -1;
|
---|
753 | else
|
---|
754 | return 1;
|
---|
755 | }
|
---|
756 |
|
---|
757 | int compareZ(const void* a, const void* b)
|
---|
758 | {
|
---|
759 | if( ((const Radion*)a)->position.z < ((const Radion*)b)->position.z )
|
---|
760 | return -1;
|
---|
761 | else
|
---|
762 | return 1;
|
---|
763 | }
|
---|
764 |
|
---|
765 | int compareDirX(const void* a, const void* b)
|
---|
766 | {
|
---|
767 | if( ((const Radion*)a)->normal.x < ((const Radion*)b)->normal.x )
|
---|
768 | return -1;
|
---|
769 | else
|
---|
770 | return 1;
|
---|
771 | }
|
---|
772 |
|
---|
773 | int compareDirY(const void* a, const void* b)
|
---|
774 | {
|
---|
775 | if( ((const Radion*)a)->normal.y < ((const Radion*)b)->normal.y )
|
---|
776 | return -1;
|
---|
777 | else
|
---|
778 | return 1;
|
---|
779 | }
|
---|
780 |
|
---|
781 | int compareDirZ(const void* a, const void* b)
|
---|
782 | {
|
---|
783 | if( ((const Radion*)a)->normal.z < ((const Radion*)b)->normal.z )
|
---|
784 | return -1;
|
---|
785 | else
|
---|
786 | return 1;
|
---|
787 | }
|
---|
788 |
|
---|
789 |
|
---|
790 | void PathMapEffect::clusterRadionsKMeans()
|
---|
791 | {
|
---|
792 | Radion centroids[MAXNCLUSTERS];
|
---|
793 | std::vector<Radion> clusters[MAXNCLUSTERS];
|
---|
794 | //initial clusters: uniform length
|
---|
795 | for(unsigned int i=0; i<NCLUSTERS; i++)
|
---|
796 | clusterLenghts[i] = NRADIONS / NCLUSTERS;
|
---|
797 | for(unsigned int iKMeans = 0; iKMeans < 128; iKMeans++)
|
---|
798 | {
|
---|
799 | //find centroids
|
---|
800 | unsigned int iRadion = 0;
|
---|
801 | for(unsigned int i=0; i<NCLUSTERS; i++)
|
---|
802 | {
|
---|
803 | centroids[i].position = Vector::RGBBLACK;
|
---|
804 | centroids[i].normal = Vector::RGBBLACK;
|
---|
805 | for(unsigned int iRadionInCluster=0; iRadionInCluster < clusterLenghts[i]; iRadionInCluster++, iRadion++)
|
---|
806 | {
|
---|
807 | centroids[i].position += bushStarters.at(iRadion).position;
|
---|
808 | centroids[i].normal += bushStarters.at(iRadion).normal;
|
---|
809 | }
|
---|
810 | centroids[i].position *= 1.0f / (float)clusterLenghts[i];
|
---|
811 | centroids[i].normal.normalize();
|
---|
812 | }
|
---|
813 |
|
---|
814 | for(unsigned int i=0; i<NCLUSTERS; i++)
|
---|
815 | clusters[i].clear();
|
---|
816 |
|
---|
817 | //sort radions to centroids
|
---|
818 | iRadion = 0;
|
---|
819 | for(unsigned int i=0; i<NCLUSTERS; i++)
|
---|
820 | {
|
---|
821 | for(unsigned int iRadionInCluster=0; iRadionInCluster < clusterLenghts[i]; iRadionInCluster++, iRadion++)
|
---|
822 | {
|
---|
823 | unsigned int minimumDistanceClusterIndex = 0;
|
---|
824 | float minimumDistance = FLT_MAX;
|
---|
825 | for(unsigned int u=0; u<NCLUSTERS; u++)
|
---|
826 | {
|
---|
827 | float dirDist = (bushStarters.at(iRadion).normal * centroids[u].normal);
|
---|
828 | float dist = (bushStarters.at(iRadion).position - centroids[u].position).norm() * pow(6.0, 1.0 - (double)dirDist);
|
---|
829 | if(dist < minimumDistance)
|
---|
830 | {
|
---|
831 | minimumDistanceClusterIndex = u;
|
---|
832 | minimumDistance = dist;
|
---|
833 | }
|
---|
834 | }
|
---|
835 | clusters[minimumDistanceClusterIndex].push_back( bushStarters.at(iRadion) );
|
---|
836 | }
|
---|
837 | }
|
---|
838 | //refill bushStarters, set cluster lengths
|
---|
839 | iRadion = 0;
|
---|
840 | for(unsigned int i=0; i<NCLUSTERS; i++)
|
---|
841 | {
|
---|
842 | clusterLenghts[i] = clusters[i].size();
|
---|
843 | for(unsigned int iRadionInCluster=0; iRadionInCluster < clusterLenghts[i]; iRadionInCluster++, iRadion++)
|
---|
844 | {
|
---|
845 | bushStarters.at(iRadion) = clusters[i].at(iRadionInCluster);
|
---|
846 | }
|
---|
847 | }
|
---|
848 | //eliminate empty clusters
|
---|
849 | for(unsigned int i=1; i<NCLUSTERS; i++)
|
---|
850 | {
|
---|
851 | if(clusterLenghts[i] == 0)
|
---|
852 | {
|
---|
853 | clusterLenghts[i] = clusterLenghts[i-1] >> 1;
|
---|
854 | clusterLenghts[i-1] -= clusterLenghts[i-1] >> 1;
|
---|
855 | }
|
---|
856 | }
|
---|
857 | for(int i=NCLUSTERS - 1; i >= 0; i--)
|
---|
858 | {
|
---|
859 | if(clusterLenghts[i] == 0)
|
---|
860 | {
|
---|
861 | clusterLenghts[i] = clusterLenghts[i+1] >> 1;
|
---|
862 | clusterLenghts[i+1] -= clusterLenghts[i+1] >> 1;
|
---|
863 | }
|
---|
864 | }
|
---|
865 | }
|
---|
866 | }
|
---|
867 |
|
---|
868 | int PathMapEffect::clusterRadions(Radion* partition, int psize, char axis)
|
---|
869 | {
|
---|
870 | /* if(psize < 2)
|
---|
871 | return 1;
|
---|
872 | if(axis == 0)
|
---|
873 | qsort(partition, psize, sizeof(Radion), compareDirX);
|
---|
874 | else if(axis == 1)
|
---|
875 | qsort(partition, psize, sizeof(Radion), compareDirY);
|
---|
876 | else if(axis == 2)
|
---|
877 | qsort(partition, psize, sizeof(Radion), compareDirZ);
|
---|
878 | else if(axis == 3)
|
---|
879 | qsort(partition, psize, sizeof(Radion), compareX);
|
---|
880 | else if(axis == 4)
|
---|
881 | qsort(partition, psize, sizeof(Radion), compareY);
|
---|
882 | else if(axis == 5)
|
---|
883 | qsort(partition, psize, sizeof(Radion), compareZ);
|
---|
884 | clusterRadions(partition, psize >> 1, (axis+1)%6);
|
---|
885 | clusterRadions(partition + (psize >> 1), psize - (psize >> 1), (axis+1)%6);
|
---|
886 | return 1;
|
---|
887 | /*/ if(psize < 2)
|
---|
888 | return 1;
|
---|
889 | if(axis == 0)
|
---|
890 | qsort(partition, psize, sizeof(Radion), compareX);
|
---|
891 | else if(axis == 1)
|
---|
892 | qsort(partition, psize, sizeof(Radion), compareY);
|
---|
893 | else if(axis == 2)
|
---|
894 | qsort(partition, psize, sizeof(Radion), compareZ);
|
---|
895 | clusterRadions(partition, psize >> 1, (axis+1)%3);
|
---|
896 | clusterRadions(partition + (psize >> 1), psize - (psize >> 1), (axis+1)%3);
|
---|
897 | return 1;//*/
|
---|
898 | }
|
---|
899 |
|
---|
900 |
|
---|
901 | void PathMapEffect::shootRadionBush(Radion& starter, std::vector<Radion>& bushRadions)
|
---|
902 | {
|
---|
903 | bushRadions.push_back(starter);
|
---|
904 |
|
---|
905 | int nPhotonsShotForLight = 1; //branching factor
|
---|
906 | for(int iPhoton = 0; iPhoton < nPhotonsShotForLight; iPhoton++)
|
---|
907 | {
|
---|
908 | unsigned int depth = 0;
|
---|
909 | ray.id = rayId++;
|
---|
910 | ray.isShadowRay = false;
|
---|
911 | ray.origin = starter.position;
|
---|
912 | Vector power = starter.radiance;
|
---|
913 | float prob = starter.probability;
|
---|
914 | prob *= nPhotonsShotForLight;
|
---|
915 | power *= 1.0f / nPhotonsShotForLight;
|
---|
916 | sampleShootingDiffuseDirection(depth, starter.normal, ray.dir);
|
---|
917 |
|
---|
918 | for(;;depth++)
|
---|
919 | {
|
---|
920 | kdtree->traverse(ray, hitRec, 0.0f, FLT_MAX);
|
---|
921 | if(hitRec.isIntersect)
|
---|
922 | {
|
---|
923 | Radion nr;
|
---|
924 | nr.position = hitRec.point;
|
---|
925 | nr.normal = hitRec.normal;
|
---|
926 | nr.radiance = power;
|
---|
927 | nr.radiance %= hitRec.material->getTextureDiffuseBrdf(hitRec.texUV);
|
---|
928 | nr.probability = prob;
|
---|
929 | bushRadions.push_back(nr);
|
---|
930 | }
|
---|
931 | else
|
---|
932 | break;
|
---|
933 | if(depth >= 3)
|
---|
934 | break;
|
---|
935 | float rrRandom = (float)rand() / RAND_MAX;
|
---|
936 | float diffuseAlbedo = hitRec.material->getTextureDiffuseAlbedo(hitRec.texUV);
|
---|
937 | float idealAlbedo = hitRec.material->getTextureIdealAlbedo(hitRec.texUV);
|
---|
938 | float refractiveAlbedo = hitRec.material->getRefractiveAlbedo();
|
---|
939 | if(rrRandom < diffuseAlbedo)
|
---|
940 | {
|
---|
941 | ray.id = rayId++;
|
---|
942 | ray.isShadowRay = false;
|
---|
943 | ray.origin = hitRec.point;
|
---|
944 | power %= hitRec.material->getTextureDiffuseBrdf(hitRec.texUV);
|
---|
945 | power *= 1.0f / diffuseAlbedo;
|
---|
946 | prob *= diffuseAlbedo;
|
---|
947 | sampleShootingDiffuseDirection(depth, hitRec.normal, ray.dir);
|
---|
948 | }
|
---|
949 | else
|
---|
950 | {
|
---|
951 | rrRandom -= diffuseAlbedo;
|
---|
952 | if(rrRandom < idealAlbedo)
|
---|
953 | {
|
---|
954 | ray.dir.setIdealReflectedDirection(ray.dir, hitRec.normal);
|
---|
955 | ray.id = rayId++;
|
---|
956 | ray.isShadowRay = false;
|
---|
957 | ray.origin = hitRec.point;
|
---|
958 | power %= hitRec.material->getIdealBrdf();
|
---|
959 | power *= 1.0f / idealAlbedo;
|
---|
960 | prob *= idealAlbedo;
|
---|
961 | }
|
---|
962 | else
|
---|
963 | break;
|
---|
964 | }
|
---|
965 | }
|
---|
966 | }
|
---|
967 | }
|
---|
968 |
|
---|
969 | void PathMapEffect::sampleSurfaceRadion(Radion& starter)
|
---|
970 | {
|
---|
971 | float randa = ((double)rand() / RAND_MAX) * entities.size();
|
---|
972 | //& float randa = ((double)rand() / RAND_MAX) * sumSurfaceArea;
|
---|
973 | float uptonowSurfaceArea = 0.0;
|
---|
974 | Entity* e = NULL;
|
---|
975 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
976 | while(entityIterator != entities.end())
|
---|
977 | {
|
---|
978 | uptonowSurfaceArea += 1.0f;
|
---|
979 | //& uptonowSurfaceArea += (*entityIterator)->getSurfaceArea();
|
---|
980 | if(uptonowSurfaceArea >= randa)
|
---|
981 | {
|
---|
982 | e = *entityIterator;
|
---|
983 | break;
|
---|
984 | }
|
---|
985 | entityIterator++;
|
---|
986 | }
|
---|
987 |
|
---|
988 | const Material* m = e->sampleSurface(starter);
|
---|
989 |
|
---|
990 | float surfa = starter.radiance.z;
|
---|
991 |
|
---|
992 | Vector rtexc = starter.radiance;
|
---|
993 | starter.radiance = m->getTextureDiffuseBrdf(rtexc);
|
---|
994 | starter.radiance *= (surfa / NRADIONS) * entities.size();
|
---|
995 | //& starter.radiance *= sumSurfaceArea / NRADIONS;
|
---|
996 | starter.probability = (float)NRADIONS / (entities.size() * surfa );
|
---|
997 | }
|
---|
998 |
|
---|
999 | void PathMapEffect::sampleSurfaceRadionUniform(Radion& starter)
|
---|
1000 | {
|
---|
1001 | float randa = ((double)rand() / RAND_MAX) * sumSurfaceArea;
|
---|
1002 | float uptonowSurfaceArea = 0.0;
|
---|
1003 | Entity* e = NULL;
|
---|
1004 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
1005 | while(entityIterator != entities.end())
|
---|
1006 | {
|
---|
1007 | uptonowSurfaceArea += (*entityIterator)->getSurfaceArea();
|
---|
1008 | if(uptonowSurfaceArea >= randa)
|
---|
1009 | {
|
---|
1010 | e = *entityIterator;
|
---|
1011 | break;
|
---|
1012 | }
|
---|
1013 | entityIterator++;
|
---|
1014 | }
|
---|
1015 |
|
---|
1016 | const Material* m = e->sampleSurface(starter);
|
---|
1017 |
|
---|
1018 | float surfa = starter.radiance.z;
|
---|
1019 |
|
---|
1020 | Vector rtexc = starter.radiance;
|
---|
1021 | starter.radiance = m->getTextureDiffuseBrdf(rtexc);
|
---|
1022 | starter.radiance *= sumSurfaceArea / NRADIONS;
|
---|
1023 | starter.probability = (float)NRADIONS / (entities.size() * surfa );
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | void PathMapEffect::uploadRadions()
|
---|
1027 | {
|
---|
1028 | int nRadions = bushStarters.size();
|
---|
1029 | struct TMR{
|
---|
1030 | float pos[4];
|
---|
1031 | float dir[4];
|
---|
1032 | // float pow[4];
|
---|
1033 | };
|
---|
1034 | TMR* tm = new TMR[nRadions];
|
---|
1035 | for(int i=0; i<nRadions; i++)
|
---|
1036 | {
|
---|
1037 | //*
|
---|
1038 | tm[i].pos[0] = bushStarters[i].position[0];
|
---|
1039 | tm[i].pos[1] = bushStarters[i].position[1];
|
---|
1040 | tm[i].pos[2] = bushStarters[i].position[2];
|
---|
1041 | tm[i].pos[3] = 1.0;
|
---|
1042 | tm[i].dir[0] = bushStarters[i].normal[0];
|
---|
1043 | tm[i].dir[1] = bushStarters[i].normal[1];
|
---|
1044 | tm[i].dir[2] = bushStarters[i].normal[2];
|
---|
1045 | tm[i].dir[3] = 1.0;
|
---|
1046 | // tm[i].pow[0] = bushStarters[i].radiance[0];
|
---|
1047 | // tm[i].pow[1] = bushStarters[i].radiance[1];
|
---|
1048 | // tm[i].pow[2] = bushStarters[i].radiance[2];
|
---|
1049 | // tm[i].pow[3] = 1.0;
|
---|
1050 | /*/
|
---|
1051 | tm[i].pos[0] = 0.9;
|
---|
1052 | tm[i].pos[1] = 0.2;
|
---|
1053 | tm[i].pos[2] = 0.2;
|
---|
1054 | tm[i].pos[3] = 1.0;
|
---|
1055 | tm[i].dir[0] = 0.2;
|
---|
1056 | tm[i].dir[1] = 0.9;
|
---|
1057 | tm[i].dir[2] = 0.2;
|
---|
1058 | tm[i].dir[3] = 1.0;
|
---|
1059 | tm[i].pow[0] = 0.2;
|
---|
1060 | tm[i].pow[1] = 0.2;
|
---|
1061 | tm[i].pow[2] = 0.9; //blue
|
---|
1062 | tm[i].pow[3] = 0.99;
|
---|
1063 | //*/
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | RECT imgSize;
|
---|
1067 | imgSize.top = imgSize.left = 0;
|
---|
1068 | imgSize.bottom = nRadions;
|
---|
1069 | imgSize.right = 2 * nRadions / 4096;
|
---|
1070 | D3DXLoadSurfaceFromMemory(radionSurface, NULL, NULL, tm, D3DFMT_A32B32G32R32F,
|
---|
1071 | imgSize.right * 4 * sizeof(float), NULL, &imgSize, D3DX_FILTER_NONE, 0);
|
---|
1072 |
|
---|
1073 | delete [] tm;
|
---|
1074 | }
|
---|
1075 |
|
---|
1076 | void PathMapEffect::fillRadionPosArray(void* pData)
|
---|
1077 | {
|
---|
1078 | int nRadions = NRADIONS;
|
---|
1079 | struct TMR{
|
---|
1080 | float pos[3];
|
---|
1081 | float rad[3];
|
---|
1082 | };
|
---|
1083 | TMR* tm = (TMR*)pData;
|
---|
1084 | for(int i=0; i<nRadions; i++)
|
---|
1085 | {
|
---|
1086 | tm[i].pos[0] = bushStarters[i].position[0];
|
---|
1087 | tm[i].pos[1] = bushStarters[i].position[1];
|
---|
1088 | tm[i].pos[2] = bushStarters[i].position[2];
|
---|
1089 | tm[i].rad[0] = bushStarters[i].radiance[0];
|
---|
1090 | tm[i].rad[1] = bushStarters[i].radiance[1];
|
---|
1091 | tm[i].rad[2] = bushStarters[i].radiance[2];
|
---|
1092 | }
|
---|
1093 | }
|
---|
1094 |
|
---|
1095 | const wchar_t* PathMapEffect::getWeightsString()
|
---|
1096 | {
|
---|
1097 | static wchar_t ws[512];
|
---|
1098 | ws[0] = 0;
|
---|
1099 | char wan[64];
|
---|
1100 | float sumw = 0.0f;
|
---|
1101 | for(int i=0; i<33; i++)
|
---|
1102 | {
|
---|
1103 | // StrCpy(wan, L"%f ");
|
---|
1104 | if(i == 32)
|
---|
1105 | sprintf(wan, "%.3f ", (double)sumw);
|
---|
1106 | else
|
---|
1107 | {
|
---|
1108 | sumw += weights[i];
|
---|
1109 | sprintf(wan, "%.3f ", (double)weights[i]);
|
---|
1110 | }
|
---|
1111 | wchar_t* wideValue = new wchar_t[MultiByteToWideChar(CP_ACP, 0, wan, -1, NULL, 0)];
|
---|
1112 | MultiByteToWideChar(CP_ACP, 0, wan, -1, wideValue, 511);
|
---|
1113 | StrCatW(ws, wideValue);
|
---|
1114 | delete wideValue;
|
---|
1115 | }
|
---|
1116 | return ws;
|
---|
1117 | }
|
---|
1118 |
|
---|
1119 |
|
---|
1120 | void PathMapEffect::savePathMaps()
|
---|
1121 | {
|
---|
1122 | // std::fstream entryPointFile("prm\\prmEntryPoints.dat", std::ios::out | std::ios::binary);
|
---|
1123 | char eFileName[512];
|
---|
1124 | sprintf(eFileName, "%s\\prmEntryPoints.text", LC::c-this->prmDirectory);
|
---|
1125 | std::fstream entryPointFile(eFileName, std::ios::out);
|
---|
1126 |
|
---|
1127 | entryPointFile << "nEntryPoints ";
|
---|
1128 | entryPointFile << NRADIONS;
|
---|
1129 | entryPointFile << "\n";
|
---|
1130 |
|
---|
1131 | for(unsigned int u=0; u < NRADIONS; u++)
|
---|
1132 | {
|
---|
1133 | entryPointFile << bushStarters.at(u);
|
---|
1134 | entryPointFile << "\n";
|
---|
1135 | }
|
---|
1136 |
|
---|
1137 | entryPointFile << "Clusters ";
|
---|
1138 | entryPointFile << NCLUSTERS;
|
---|
1139 | entryPointFile << "\n";
|
---|
1140 |
|
---|
1141 | for(unsigned int c=0; c < NCLUSTERS; c++)
|
---|
1142 | {
|
---|
1143 | // entryPointFile.write((char*)&clusterLenghts[c], sizeof(unsigned int));
|
---|
1144 | entryPointFile << clusterLenghts[c] << '\n';
|
---|
1145 | }
|
---|
1146 | entryPointFile << "\n";
|
---|
1147 |
|
---|
1148 | entryPointFile.flush();
|
---|
1149 | entryPointFile.close();
|
---|
1150 |
|
---|
1151 | unsigned int iEntity = 0;
|
---|
1152 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
1153 | while(entityIterator != entities.end())
|
---|
1154 | {
|
---|
1155 | (*entityIterator)->savePRM();
|
---|
1156 |
|
---|
1157 | entityIterator++;
|
---|
1158 | iEntity++;
|
---|
1159 | }
|
---|
1160 | }
|
---|
1161 |
|
---|
1162 | void PathMapEffect::loadPathMaps()
|
---|
1163 | {
|
---|
1164 | /* std::fstream entryPointFile("prm\\prmEntryPoints.dat", std::ios::in | std::ios::binary);
|
---|
1165 |
|
---|
1166 | bushStarters.clear();
|
---|
1167 |
|
---|
1168 | for(unsigned int u=0; u < NRADIONS; u++)
|
---|
1169 | {
|
---|
1170 | Radion ri;
|
---|
1171 | entryPointFile >> ri;
|
---|
1172 | bushStarters.push_back(ri);
|
---|
1173 | }
|
---|
1174 |
|
---|
1175 | for(unsigned int c=0; c < NCLUSTERS; c++)
|
---|
1176 | {
|
---|
1177 | entryPointFile.read((char*)&clusterLenghts[c], sizeof(unsigned int));
|
---|
1178 | }
|
---|
1179 |
|
---|
1180 | entryPointFile.close();*/
|
---|
1181 | char eFileName[512];
|
---|
1182 | sprintf(eFileName, "%s\\prmEntryPoints.text", LC::c-this->prmDirectory);
|
---|
1183 |
|
---|
1184 | std::fstream entryPointFile(eFileName, std::ios::in);
|
---|
1185 |
|
---|
1186 | char keyword[256];
|
---|
1187 |
|
---|
1188 | unsigned int redrad;
|
---|
1189 | entryPointFile >> keyword; //nradions
|
---|
1190 | entryPointFile >> redrad;
|
---|
1191 |
|
---|
1192 | bushStarters.clear();
|
---|
1193 |
|
---|
1194 | for(unsigned int u=0; u < NRADIONS; u++)
|
---|
1195 | {
|
---|
1196 | Radion ri;
|
---|
1197 | entryPointFile >> ri;
|
---|
1198 | bushStarters.push_back(ri);
|
---|
1199 | }
|
---|
1200 |
|
---|
1201 | entryPointFile >> keyword; //ncluster
|
---|
1202 | entryPointFile >> redrad;
|
---|
1203 |
|
---|
1204 | for(unsigned int c=0; c < NCLUSTERS; c++)
|
---|
1205 | {
|
---|
1206 | entryPointFile >> clusterLenghts[c];
|
---|
1207 | }
|
---|
1208 |
|
---|
1209 | entryPointFile.close();
|
---|
1210 |
|
---|
1211 | srand(0xef23ab32);
|
---|
1212 | unsigned int iEntity = 0;
|
---|
1213 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
1214 | while(entityIterator != entities.end())
|
---|
1215 | {
|
---|
1216 | (*entityIterator)->findNearClusters(bushStarters, NCLUSTERS);
|
---|
1217 | (*entityIterator)->loadPRM();
|
---|
1218 |
|
---|
1219 | entityIterator++;
|
---|
1220 | iEntity++;
|
---|
1221 | }
|
---|
1222 | }
|
---|
1223 |
|
---|
1224 | void PathMapEffect::loadScene(const char* sceneFileName)
|
---|
1225 | {
|
---|
1226 | std::fstream sceneFile(sceneFileName, std::ios::in);
|
---|
1227 |
|
---|
1228 | char keyword[256];
|
---|
1229 | while(!sceneFile.eof())
|
---|
1230 | {
|
---|
1231 | sceneFile >> keyword;
|
---|
1232 | if(strcmp(keyword, "mesh") == 0)
|
---|
1233 | {
|
---|
1234 | int meshAtlasSize = 128;
|
---|
1235 | bool needsUV = true;
|
---|
1236 | bool needsTBN = false;
|
---|
1237 | int dividePcs = 1;
|
---|
1238 | char meshname[256];
|
---|
1239 | wchar_t* wide = NULL;
|
---|
1240 | wchar_t* wideXML = NULL;
|
---|
1241 | wchar_t* wideOgre = NULL;
|
---|
1242 | Vector color = Vector::RGBWHITE;
|
---|
1243 |
|
---|
1244 | sceneFile >> meshname;
|
---|
1245 | if(strcmp(meshname, "{") == 0)
|
---|
1246 | strcpy(meshname, "mesh");
|
---|
1247 | while(strcmp(keyword, "}") != 0 && !sceneFile.eof())
|
---|
1248 | {
|
---|
1249 | sceneFile >> keyword;
|
---|
1250 | if(strcmp(keyword, "xfile") == 0)
|
---|
1251 | {
|
---|
1252 | sceneFile >> keyword;
|
---|
1253 | if(keyword)
|
---|
1254 | {
|
---|
1255 | wide = L::clone(keyword);
|
---|
1256 | }
|
---|
1257 | }
|
---|
1258 | if(strcmp(keyword, "ogreXMLfile") == 0)
|
---|
1259 | {
|
---|
1260 | sceneFile >> keyword;
|
---|
1261 | if(keyword)
|
---|
1262 | {
|
---|
1263 | wideXML = L::clone(keyword);
|
---|
1264 | }
|
---|
1265 | }
|
---|
1266 | if(strcmp(keyword, "ogrefile") == 0)
|
---|
1267 | {
|
---|
1268 | sceneFile >> keyword;
|
---|
1269 | if(keyword)
|
---|
1270 | {
|
---|
1271 | wideOgre = L::clone(keyword);
|
---|
1272 | }
|
---|
1273 | }
|
---|
1274 | if(strcmp(keyword, "pathmapresolution") == 0)
|
---|
1275 | {
|
---|
1276 | sceneFile >> meshAtlasSize;
|
---|
1277 | }
|
---|
1278 | if(strcmp(keyword, "divide") == 0)
|
---|
1279 | {
|
---|
1280 | sceneFile >> dividePcs;
|
---|
1281 | }
|
---|
1282 | }
|
---|
1283 | if(wideXML)
|
---|
1284 | {
|
---|
1285 | loadMesh(Mesh::OgreXMLMesh, wideXML, wideOgre, meshAtlasSize, meshname, dividePcs, needsUV, needsTBN);
|
---|
1286 | delete [] wideXML;
|
---|
1287 | }
|
---|
1288 | else if(wide)
|
---|
1289 | {
|
---|
1290 | loadMesh(Mesh::DirectXMesh, wide, wideOgre, meshAtlasSize, meshname, dividePcs, needsUV, needsTBN);
|
---|
1291 | delete [] wide;
|
---|
1292 | }
|
---|
1293 | else
|
---|
1294 | if(wideOgre)
|
---|
1295 | delete [] wideOgre;
|
---|
1296 | }
|
---|
1297 |
|
---|
1298 | if(strcmp(keyword, "entity") == 0)
|
---|
1299 | {
|
---|
1300 | char entityName[256];
|
---|
1301 | char prmFileName[256];
|
---|
1302 | Mesh* baseMesh = NULL;
|
---|
1303 | D3DXMATRIX trafo;
|
---|
1304 | D3DXMatrixIdentity(&trafo);
|
---|
1305 | int nNearClusters = 16;
|
---|
1306 |
|
---|
1307 | sceneFile >> entityName;
|
---|
1308 | if(strcmp(entityName, "{") == 0)
|
---|
1309 | strcpy(entityName, "noname");
|
---|
1310 |
|
---|
1311 | while(strcmp(keyword, "}") != 0 && !sceneFile.eof())
|
---|
1312 | {
|
---|
1313 | sceneFile >> keyword;
|
---|
1314 | if(strcmp(keyword, "pathmapfile") == 0)
|
---|
1315 | {
|
---|
1316 | sceneFile >> keyword;
|
---|
1317 | strcpy(prmFileName, keyword);
|
---|
1318 | }
|
---|
1319 | if(strcmp(keyword, "mesh") == 0)
|
---|
1320 | {
|
---|
1321 | sceneFile >> keyword;
|
---|
1322 |
|
---|
1323 | std::vector<Mesh*>::iterator i = meshes.begin();
|
---|
1324 | while(i != meshes.end())
|
---|
1325 | {
|
---|
1326 | if(strcmp((*i)->getName(), keyword) == 0)
|
---|
1327 | {
|
---|
1328 | baseMesh = *i;
|
---|
1329 | break;
|
---|
1330 | }
|
---|
1331 | i++;
|
---|
1332 | }
|
---|
1333 | }
|
---|
1334 | if(strcmp(keyword, "transformation") == 0)
|
---|
1335 | {
|
---|
1336 | for(int i=0; i<16; i++)
|
---|
1337 | sceneFile >> trafo.m[i%4][i/4];
|
---|
1338 | }
|
---|
1339 | if(strcmp(keyword, "pathmapclusters") == 0)
|
---|
1340 | {
|
---|
1341 | sceneFile >> nNearClusters;
|
---|
1342 | }
|
---|
1343 | }
|
---|
1344 | if(baseMesh)
|
---|
1345 | {
|
---|
1346 | Entity* e = new Entity(baseMesh, entityName, prmFileName, trafo, nNearClusters);
|
---|
1347 | entities.push_back(e);
|
---|
1348 | }
|
---|
1349 | }
|
---|
1350 | }
|
---|
1351 | sceneFile.close();
|
---|
1352 | }
|
---|
1353 |
|
---|
1354 |
|
---|
1355 | void PathMapEffect::renderScene(const RenderStrategy& renderStrategy)
|
---|
1356 | {
|
---|
1357 | renderStrategy.applyTargets();
|
---|
1358 |
|
---|
1359 | renderStrategy.applyRenderState();
|
---|
1360 |
|
---|
1361 | if( SUCCEEDED( device->BeginScene() ) )
|
---|
1362 | {
|
---|
1363 | renderStrategy.applyTechnique();
|
---|
1364 | UINT nPasses;
|
---|
1365 | effect->Begin( &nPasses, 0 );
|
---|
1366 | for(UINT j=0;j<nPasses;j++)
|
---|
1367 | {
|
---|
1368 | effect->BeginPass(j);
|
---|
1369 |
|
---|
1370 | //loop through all entities
|
---|
1371 | std::vector<Entity*>::iterator entityIterator = entities.begin();
|
---|
1372 | while(entityIterator != entities.end())
|
---|
1373 | {
|
---|
1374 |
|
---|
1375 | (*entityIterator)->drawAllSubEntities(renderStrategy);
|
---|
1376 | entityIterator++;
|
---|
1377 | }
|
---|
1378 |
|
---|
1379 | effect->EndPass();
|
---|
1380 | }
|
---|
1381 | effect->End();
|
---|
1382 | device->EndScene();
|
---|
1383 | }
|
---|
1384 |
|
---|
1385 | renderStrategy.resetRenderState();
|
---|
1386 |
|
---|
1387 | }
|
---|
1388 |
|
---|
1389 | void PathMapEffect::saveScene(const char* sceneFileName)
|
---|
1390 | {
|
---|
1391 | std::ofstream psf(sceneFileName);
|
---|
1392 |
|
---|
1393 | std::vector<Mesh*>::iterator iMesh = meshes.begin();
|
---|
1394 | while(iMesh != meshes.end())
|
---|
1395 | {
|
---|
1396 | (*iMesh)->saveSceneInfo(psf);
|
---|
1397 | iMesh++;
|
---|
1398 | }
|
---|
1399 |
|
---|
1400 | std::vector<Entity*>::iterator iEntity = entities.begin();
|
---|
1401 | while(iEntity != entities.end())
|
---|
1402 | {
|
---|
1403 | (*iEntity)->saveSceneInfo(psf);
|
---|
1404 | iEntity++;
|
---|
1405 | }
|
---|
1406 | }
|
---|
1407 |
|
---|
1408 | const wchar_t* PathMapEffect::getCurrentMethodName()
|
---|
1409 | {
|
---|
1410 | int lmode = parameters->GetInt(fIndirectLightingMode);
|
---|
1411 | if(lmode == 3)
|
---|
1412 | return L"PRM only";
|
---|
1413 | if(lmode == 2)
|
---|
1414 | return L"direct + PRM";
|
---|
1415 | if(lmode == 1)
|
---|
1416 | return L"direct + ambient";
|
---|
1417 | if(lmode == 0)
|
---|
1418 | return L"direct only";
|
---|
1419 | } |
---|