1 | #include "OgreDepthShadowMapRenderingRun.h"
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2 | #include "OgreIlluminationManager.h"
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3 |
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4 |
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5 | OgreDepthShadowMapRenderingRun::OgreDepthShadowMapRenderingRun(OgreSharedRuns* sharedRuns,
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6 | String name,
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7 | Light* light,
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8 | unsigned int resolutionX,
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9 | unsigned int resolutionY,
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10 | String materialName
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11 | )
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12 | :DepthShadowMapRenderingRun(resolutionX, resolutionY)
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13 | , OgreRenderingRun(1, 1)
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14 | , RenderingRun(1, 1)
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15 | {
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16 | this->light = light;
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17 | this->sharedRuns = sharedRuns;
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18 | this->name = name;
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19 | this->blurredname = name + "blurred";
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20 |
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21 | this->materialName = materialName;
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22 | lightFarPlane = 0;
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23 | createDepthMap();
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24 | }
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25 |
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26 | void OgreDepthShadowMapRenderingRun::createDepthMap()
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27 | {
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28 | if(light->getType() == Light::LT_POINT)
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29 | {
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30 | depthMapTexture = createCubeRenderTexture(name, light->getPosition(), resolutionX,PF_FLOAT16_RGBA,0,ColourValue::White);
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31 | for(int i = 0; i < 6; i++)
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32 | depthMapTexture->getBuffer(i, 0).getPointer()->getRenderTarget()->getViewport(0)->setSkiesEnabled(false);
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33 |
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34 | if(OgreIlluminationManager::getSingleton().getBlurShadowMap(light->getType()))
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35 | blurredDepthMapTexture = createCubeRenderTexture(blurredname, light->getPosition(), resolutionX,PF_FLOAT16_RGBA,0,ColourValue::White);
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36 | }
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37 | else
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38 | {
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39 |
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40 | TexturePtr texPtr = Ogre::TextureManager::getSingleton().createManual(name,
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41 | "default",
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42 | TEX_TYPE_2D,
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43 | resolutionX,
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44 | resolutionY,
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45 | 0,
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46 | 0,
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47 | PF_FLOAT16_RGBA,
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48 | TU_RENDERTARGET);
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49 | depthMapTexture = texPtr.getPointer();
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50 | depthMapCamera = Root::getSingleton()._getCurrentSceneManager()->createCamera(name + "_CAMERA");
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51 | //add viewport to rendertarget
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52 | HardwarePixelBuffer* hpb = (depthMapTexture->getBuffer()).getPointer();
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53 | RenderTarget* rt = hpb->getRenderTarget();
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54 | Viewport* v = rt->addViewport(depthMapCamera);
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55 | v->setBackgroundColour(ColourValue::White);
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56 | v->setOverlaysEnabled(false);
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57 | v->setSkiesEnabled(false);
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58 | rt->setAutoUpdated(false);
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59 |
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60 | if(OgreIlluminationManager::getSingleton().getBlurShadowMap(light->getType()))
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61 | {
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62 | texPtr = Ogre::TextureManager::getSingleton().createManual(blurredname,
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63 | "default",
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64 | TEX_TYPE_2D,
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65 | resolutionX,
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66 | resolutionY,
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67 | 0,
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68 | 0,
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69 | PF_FLOAT16_RGBA,
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70 | TU_RENDERTARGET);
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71 | blurredDepthMapTexture = texPtr.getPointer();
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72 | hpb = (blurredDepthMapTexture->getBuffer()).getPointer();
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73 | rt = hpb->getRenderTarget();
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74 | v = rt->addViewport(depthMapCamera);
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75 | v->setOverlaysEnabled(false);
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76 | rt->setAutoUpdated(false);
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77 | }
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78 | }
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79 | }
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80 |
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81 | bool OgreDepthShadowMapRenderingRun::renderableQueued (Renderable *rend, uint8 groupID, ushort priority, Technique **ppTech)
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82 | {
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83 | if((*ppTech)->isTransparent())
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84 | return false;
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85 |
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86 | String materialToSet = materialName;
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87 | OgreTechniqueGroup* TG = (OgreTechniqueGroup*) rend->getRenderTechniqueGroup();
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88 | if(TG)
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89 | {
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90 | String triggeredMaterial = TG->getMaterialNameForTrigger(triggerName);
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91 | if(triggeredMaterial != "")//a trigger is associated
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92 | materialToSet = triggeredMaterial;
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93 |
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94 | }
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95 |
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96 | Technique* techn = ((Material*)MaterialManager::getSingleton().getByName( materialToSet ).getPointer())->getTechnique(0);
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97 | *ppTech = techn;
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98 | return true;
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99 | }
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100 |
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101 | void OgreDepthShadowMapRenderingRun::updateFrame(unsigned long frameNum)
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102 | {
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103 | refreshLight(frameNum);
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104 |
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105 | if(light->getType() == Light::LT_POINT)
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106 | {
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107 |
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108 | for(int i = 0; i < 6 ; i++)
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109 | updateDepthCubeFace(i);
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110 |
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111 | //restoreMaterials();
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112 | }
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113 | else
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114 | {
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115 | updateDepthMap();
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116 | }
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117 |
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118 |
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119 | }
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120 |
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121 | void OgreDepthShadowMapRenderingRun::updateDepthCubeFace(int facenum)
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122 | {
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123 | Vector3 lightpos = light->getDerivedPosition();
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124 |
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125 | RenderTarget* rt = depthMapTexture->getBuffer(facenum, 0).getPointer()->getRenderTarget();
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126 | Camera* cam = rt->getViewport(0)->getCamera();
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127 | cam->setFarClipDistance(lightFarPlane);
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128 | cam->setPosition(lightpos);
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129 |
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130 |
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131 | //setMaterialForVisibles(materialName, cam, true, false, triggerName);
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132 | RenderQueue* rq = Root::getSingleton()._getCurrentSceneManager()->getRenderQueue();
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133 | rq->setRenderableListener(this);
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134 |
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135 | rt->update();
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136 |
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137 | // restoreMaterials();
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138 |
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139 | //rt->writeContentsToFile("shadowmap_" + StringConverter::toString(facenum) + ".dds");
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140 |
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141 | rq->setRenderableListener(0);
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142 |
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143 | if(OgreIlluminationManager::getSingleton().getBlurShadowMap(light->getType()))
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144 | {
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145 | rt = blurredDepthMapTexture->getBuffer(facenum, 0).getPointer()->getRenderTarget();
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146 | Material* mat = (Material*) MaterialManager::getSingleton().getByName("GameTools/BlurCubeFace").getPointer();
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147 | mat->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(depthMapTexture->getName());
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148 | mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters()->setNamedConstant("face", facenum);
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149 | renderFullscreenQuad("GameTools/BlurCubeFace", rt);
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150 |
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151 | //rt->writeContentsToFile("shadowmap_blurred_" + StringConverter::toString(facenum) + ".dds");
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152 | }
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153 | }
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154 |
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155 | void OgreDepthShadowMapRenderingRun::updateDepthMap()
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156 | {
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157 |
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158 | RenderTarget* rt = depthMapTexture->getBuffer().getPointer()->getRenderTarget();
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159 | Viewport* vp = rt->getViewport(0);
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160 |
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161 | //setMaterialForVisibles(materialName, depthMapCamera, true, false, triggerName);
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162 | RenderQueue* rq = Root::getSingleton()._getCurrentSceneManager()->getRenderQueue();
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163 | rq->setRenderableListener(this);
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164 |
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165 | rt->update();
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166 |
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167 | //restoreMaterials();
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168 | rq->setRenderableListener(0);
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169 |
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170 | if(OgreIlluminationManager::getSingleton().getBlurShadowMap(light->getType()))
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171 | {
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172 | rt = blurredDepthMapTexture->getBuffer().getPointer()->getRenderTarget();
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173 | Material* mat = (Material*) MaterialManager::getSingleton().getByName("GameTools/Blur").getPointer();
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174 | mat->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(depthMapTexture->getName());
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175 | renderFullscreenQuad("GameTools/Blur", rt);
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176 | }
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177 |
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178 | //rt->writeContentsToFile("shadowmap1.dds");
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179 |
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180 | //depthMapTexture->();
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181 | }
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182 |
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183 | const String& OgreDepthShadowMapRenderingRun::getDepthMapTextureName()
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184 | {
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185 | if(OgreIlluminationManager::getSingleton().getBlurShadowMap(light->getType()))
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186 | return blurredname;
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187 |
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188 | return name;
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189 | }
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190 |
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191 | void OgreDepthShadowMapRenderingRun::refreshLight(unsigned long frameNum)
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192 | {
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193 | if(light!= 0)
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194 | {
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195 | bool uselispsm = OgreIlluminationManager::getSingleton().getUseLISPSM(light->getType());
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196 | bool usefocusing = OgreIlluminationManager::getSingleton().getFocusingShadowMap(light->getType());
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197 | if(light->getType() == Light::LT_DIRECTIONAL)
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198 | {
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199 | triggerName = "ILLUM_TRIGGER_SM_DIRECTIONAL";
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200 | Camera* viewcam = OgreIlluminationManager::getSingleton().getMainCamera();
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201 |
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202 | OgreFocusingMapRenderingRun* frun = (OgreFocusingMapRenderingRun*)
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203 | OgreIlluminationManager::getSingleton().getGlobalRun(ILLUMRUN_FOCUSING_MAP)->asOgreRenderingRun();
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204 | frun->setCameraMatrices(viewcam->getViewMatrix(), viewcam->getProjectionMatrix());
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205 |
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206 | Vector3 lightpos = light->getDerivedPosition();
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207 | Vector3 lightdir = light->getDerivedDirection();
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208 | lightdir.normalise();
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209 |
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210 | Vector3 min;
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211 | Vector3 max;
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212 |
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213 |
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214 | if(uselispsm)
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215 | {
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216 | Camera* maincam = OgreIlluminationManager::getSingleton().getMainCamera();
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217 | Vector3 viewdir = maincam->getDirection();
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218 | viewdir.normalise();
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219 | Vector3 campos = maincam->getPosition();
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220 | float nearclip = maincam->getNearClipDistance();
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221 |
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222 | float dotprod = viewdir.dotProduct(lightdir);
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223 | float sinGamma = sqrt(1.0 - dotprod * dotprod);
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224 |
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225 | Vector3 left = lightdir.crossProduct(viewdir);
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226 | left.normalise();
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227 | Vector3 up = left.crossProduct(lightdir);
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228 | up.normalise();
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229 | //left = lightdir.crossProduct(up);
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230 | left.normalise();
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231 | Matrix4 viewMatrix( left.x, left.y, left.z, 0,
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232 | up.x, up.y, up.z, 0,
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233 | lightdir.x, lightdir.y, lightdir.z, 0,
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234 | 0, 0, 0, 1);
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235 |
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236 | frun->setLightMatrix(viewMatrix);
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237 | OgreIlluminationManager::getSingleton().updateGlobalRun( ILLUMRUN_FOCUSING_MAP,
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238 | frameNum);
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239 | frun->getMinMax(min, max);
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240 |
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241 | float n;
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242 | float f;
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243 | float d = abs(max.y - min.y);
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244 |
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245 | float z_n = nearclip / sinGamma;
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246 | float one_min_singamma = (1 - sinGamma);
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247 | float fact = d * pow(one_min_singamma, 2);
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248 | float z_f = z_n + d * sinGamma * fact;
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249 | n = (z_n + sqrt(z_f * z_n)) / sinGamma;
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250 | ///n = 100000;
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251 | f = n + d;
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252 |
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253 | Vector3 pos = campos - up * (n - nearclip);
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254 | Matrix4 newViewMatrix( left.x, left.y, left.z, -left.dotProduct(pos),
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255 | up.x, up.y, up.z, -up.dotProduct(pos),
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256 | -lightdir.x, -lightdir.y, -lightdir.z, lightdir.dotProduct(pos),
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257 | 0, 0, 0, 1);
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258 |
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259 | Matrix4 lispMat = Matrix4::IDENTITY;
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260 |
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261 | lispMat[1][1] = f / (f - n);
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262 | lispMat[1][3] = f * n / (f - n);
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263 | lispMat[3][1] = 1;
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264 | lispMat[3][3] = 0;
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265 |
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266 | depthMapCamera->setCustomProjectionMatrix(true, Matrix4::IDENTITY);
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267 | depthMapCamera->setCustomViewMatrix(true, lispMat * newViewMatrix);
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268 | }
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269 | else
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270 | {
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271 | depthMapCamera->setCustomProjectionMatrix(true, Matrix4::IDENTITY);
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272 | depthMapCamera->setCustomViewMatrix(false);
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273 | depthMapCamera->setPosition(lightpos);
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274 | depthMapCamera->setDirection(lightdir);
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275 | }
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276 |
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277 |
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278 | Matrix4 lightMatrix = depthMapCamera->getViewMatrix();
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279 | frun->setLightMatrix(lightMatrix);
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280 |
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281 | OgreIlluminationManager::getSingleton().updateGlobalRun( ILLUMRUN_FOCUSING_MAP,
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282 | frameNum);
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283 |
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284 | frun->getMinMax(min, max);
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285 |
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286 |
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287 | Vector3 scale = (max - min);
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288 | scale *= 1.5; // just for safety
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289 | if(uselispsm)
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290 | scale.z += 1;
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291 | else
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292 | scale.z += 1000; //TODO: get scene bounding box to set z scale
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293 | Matrix4 projection = Matrix4::IDENTITY;
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294 | Matrix4 trans = Matrix4::IDENTITY;
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295 | trans.setTrans(Vector3(-(max.x + min.x) / 2.0,
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296 | -(max.y + min.y) / 2.0,
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297 | -(max.z + min.z) / 2.0));
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298 | Matrix4 scaleM = Matrix4::IDENTITY;
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299 | scaleM.setScale(Vector3(2.0 / scale.x, 2.0 / scale.y, -2.0 / scale.z));
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300 | projection = scaleM * trans;
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301 | depthMapCamera->setCustomProjectionMatrix(true, projection);
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302 | }
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303 | else if(light->getType() == Light::LT_SPOTLIGHT)
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304 | {
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305 | triggerName = "ILLUM_TRIGGER_SM_SPOT";
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306 | Camera* viewcam = OgreIlluminationManager::getSingleton().getMainCamera();
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307 |
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308 | OgreFocusingMapRenderingRun* frun = (OgreFocusingMapRenderingRun*)
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309 | OgreIlluminationManager::getSingleton().getGlobalRun(ILLUMRUN_FOCUSING_MAP)->asOgreRenderingRun();
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310 | frun->setCameraMatrices(viewcam->getViewMatrix(), viewcam->getProjectionMatrix());
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311 |
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312 | Vector3 lightpos = light->getDerivedPosition();
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313 | Vector3 lightdir = light->getDerivedDirection();
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314 | lightdir.normalise();
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315 | Radian lightangle = light->getSpotlightOuterAngle();
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316 |
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317 | Vector3 min;
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318 | Vector3 max;
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319 |
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320 | if(uselispsm)
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321 | {
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322 | Camera* maincam = OgreIlluminationManager::getSingleton().getMainCamera();
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323 | Vector3 viewdir = maincam->getDirection();
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324 | viewdir.normalise();
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325 | Vector3 campos = maincam->getPosition();
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326 | float nearclip = maincam->getNearClipDistance();
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327 |
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328 | float dotprod = viewdir.dotProduct(lightdir);
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329 | float sinGamma = sqrt(1.0 - dotprod * dotprod);
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330 |
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331 | Vector3 left = lightdir.crossProduct(viewdir);
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332 | Vector3 up = left.crossProduct(lightdir);
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333 | up.normalise();
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334 | //left = lightdir.crossProduct(up);
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335 | left.normalise();
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336 |
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337 | depthMapCamera->setCustomProjectionMatrix(false);
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338 | depthMapCamera->setProjectionType(PT_PERSPECTIVE);
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339 | depthMapCamera->setFOVy(lightangle);
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340 | depthMapCamera->setAspectRatio(1);
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341 | depthMapCamera->setNearClipDistance(0.1);
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342 | depthMapCamera->setFarClipDistance(1.0);
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343 |
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344 | Matrix4 projMatrix = depthMapCamera->getProjectionMatrixWithRSDepth();
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345 |
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346 | Matrix4 viewMatrix( left.x, left.y, left.z, 0,
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347 | up.x, up.y, up.z, 0,
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348 | -lightdir.x, -lightdir.y, -lightdir.z, 0,
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349 | 0, 0, 0, 1);
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350 |
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351 | frun->setLightMatrix(projMatrix * viewMatrix);
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352 | OgreIlluminationManager::getSingleton().updateGlobalRun( ILLUMRUN_FOCUSING_MAP,
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353 | frameNum);
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354 | frun->getMinMax(min, max);
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355 |
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356 | float n;
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357 | float f;
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358 | float d = abs(max.y - min.y);
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359 |
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360 | float z_n = nearclip / sinGamma;
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361 | float one_min_singamma = (1 - sinGamma);
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362 | float fact = d * pow(one_min_singamma, 2);
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363 | float z_f = z_n + d * sinGamma * fact;
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364 | n = (z_n + sqrt(z_f * z_n)) / sinGamma;
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365 | ///n = 100000;
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366 | f = n + d;
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367 |
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368 | Vector3 pos = campos - up * (n - nearclip);
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369 | Matrix4 newViewMatrix( left.x, left.y, left.z, -left.dotProduct(pos),
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370 | up.x, up.y, up.z, -up.dotProduct(pos),
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371 | -lightdir.x, -lightdir.y, -lightdir.z, lightdir.dotProduct(pos),
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372 | 0, 0, 0, 1);
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373 |
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374 | Matrix4 lispMat = Matrix4::IDENTITY;
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375 |
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376 | lispMat[1][1] = f / (f - n);
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377 | lispMat[1][3] = f * n / (f - n);
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378 | lispMat[3][1] = 1;
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379 | lispMat[3][3] = 0;
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380 |
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381 | depthMapCamera->setCustomProjectionMatrix(true, Matrix4::IDENTITY);
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382 | depthMapCamera->setCustomViewMatrix(true, lispMat * projMatrix * newViewMatrix);
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383 | }
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384 | else
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385 | {
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386 | depthMapCamera->setCustomProjectionMatrix(false);
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387 | depthMapCamera->setCustomViewMatrix(false);
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388 | depthMapCamera->setPosition(lightpos);
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389 | depthMapCamera->setDirection(lightdir);
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390 | depthMapCamera->setProjectionType(PT_PERSPECTIVE);
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391 | depthMapCamera->setFOVy(lightangle);
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392 | depthMapCamera->setAspectRatio(1);
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393 | depthMapCamera->setNearClipDistance(OgreIlluminationManager::getSingleton().getAreaLightRadius());
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394 | depthMapCamera->setFarClipDistance(1.0);
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395 | }
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396 |
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397 | if(!usefocusing)
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398 | {
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399 | lightFarPlane = light->getAttenuationRange();
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400 | depthMapCamera->setFarClipDistance(lightFarPlane);
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401 |
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402 | }
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403 | else
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404 | {
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405 | Matrix4 lightMatrix = depthMapCamera->getViewMatrix();
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406 | frun->setLightMatrix(lightMatrix);
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407 |
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408 | OgreIlluminationManager::getSingleton().updateGlobalRun( ILLUMRUN_FOCUSING_MAP,
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409 | frameNum);
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410 |
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411 | frun->getMinMax(min, max);
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412 |
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413 | if(min.z < 0)
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414 | {
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415 | float farP= -1.5 * min.z;
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416 | if(farP < 0.2) farP = 0.2;
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417 | depthMapCamera->setFarClipDistance(farP);
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418 | lightFarPlane = farP;
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419 |
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420 | Vector3 scale = (max - min);
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421 | scale *= 1.5; // just for safety
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422 |
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423 | Matrix4 projection = Matrix4::IDENTITY;
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424 | Matrix4 trans = Matrix4::IDENTITY;
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425 | trans.setTrans(Vector3(-(max.x + min.x) / 2.0,
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426 | -(max.y + min.y) / 2.0,
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427 | 0));
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428 | Matrix4 scaleM = Matrix4::IDENTITY;
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429 | scaleM.setScale(Vector3(2.0 / scale.x, 2.0 / scale.y, 1));
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430 | projection = scaleM * trans;
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431 | depthMapCamera->setCustomProjectionMatrix(true, projection * depthMapCamera->getProjectionMatrix());
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432 | }
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433 | }
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434 | }
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435 | else//point light
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436 | {
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437 | lightFarPlane = light->getAttenuationRange();
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438 | triggerName = "ILLUM_TRIGGER_SM_POINT";
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439 | //no other adjustment needed
|
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440 | }
|
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441 | }
|
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442 | }
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443 |
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444 | Matrix4 OgreDepthShadowMapRenderingRun::getLightViewMatrix()
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445 | {
|
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446 | Camera* cam = depthMapCamera;
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447 | if(light->getType() == Light::LT_POINT)
|
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448 | cam = depthMapTexture->getBuffer(4, 0).getPointer()->getRenderTarget()->getViewport(0)->getCamera();
|
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449 |
|
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450 | return cam->getViewMatrix();
|
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451 | }
|
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452 |
|
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453 | Matrix4 OgreDepthShadowMapRenderingRun::getLightViewProjMatrix()
|
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454 | {
|
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455 | Camera* cam = depthMapCamera;
|
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456 | if(light->getType() == Light::LT_POINT)
|
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457 | cam = depthMapTexture->getBuffer(4, 0).getPointer()->getRenderTarget()->getViewport(0)->getCamera();
|
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458 |
|
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459 | return cam->getProjectionMatrixWithRSDepth() * cam->getViewMatrix();
|
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460 | }
|
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461 |
|
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462 | void OgreDepthShadowMapRenderingRun::freeAllResources()
|
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463 | {
|
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464 | this->blurredDepthMapTexture = 0;
|
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465 | this->depthMapTexture = 0;
|
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466 | TextureManager::getSingleton().remove(name);
|
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467 | TextureManager::getSingleton().remove(blurredname);
|
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468 | Root::getSingleton()._getCurrentSceneManager()->destroyCamera(name + "_CAMERA");
|
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469 | }
|
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