[790] | 1 | #include "OgrePhotonMapRenderingRun.h"
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| 2 | //#include "OgreIlluminationManager.h"
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[1722] | 3 | #include "OgreCubeMapRenderingRun.h"
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[790] | 4 |
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| 5 |
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| 6 | OgrePhotonMapRenderingRun::OgrePhotonMapRenderingRun(OgreSharedRuns* sharedRuns,
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| 7 | String name,
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| 8 | unsigned long startFrame,
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| 9 | unsigned long updateInterval,
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| 10 | unsigned int resolution,
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| 11 | String materialName,
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| 12 | bool useDistance
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| 13 | )
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| 14 | :PhotonMapRenderingRun( startFrame, updateInterval)
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| 15 | , OgreRenderingRun(startFrame, updateInterval)
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| 16 | , RenderingRun(startFrame, updateInterval)
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| 17 | {
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| 18 | this->useDistance = useDistance;
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| 19 | this->sharedRuns = sharedRuns;
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| 20 | this->name = name;
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| 21 | this->resolution = resolution;
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| 22 | this->light = 0;
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| 23 | this->materialName = materialName;
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| 24 |
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| 25 | createPhotonMap();
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| 26 | }
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| 27 |
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| 28 | void OgrePhotonMapRenderingRun::createPhotonMap()
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| 29 | {
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| 30 | TexturePtr texPtr = Ogre::TextureManager::getSingleton().createManual(name,
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| 31 | "default",
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| 32 | TEX_TYPE_2D,
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| 33 | resolution,
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| 34 | resolution,
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| 35 | 0,
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| 36 | 0,
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| 37 | PF_FLOAT32_RGBA,
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| 38 | TU_RENDERTARGET);
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| 39 | photonMapTexture = texPtr.getPointer();
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| 40 | photonMapCamera = Root::getSingleton()._getCurrentSceneManager()->createCamera(name + "_CAMERA");
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| 41 | //add viewport to rendertarget
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| 42 | HardwarePixelBuffer* hpb = (photonMapTexture->getBuffer()).getPointer();
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| 43 | RenderTarget* rt = hpb->getRenderTarget();
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| 44 | Viewport* v = rt->addViewport(photonMapCamera);
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| 45 | v->setOverlaysEnabled(false);
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| 46 | rt->setAutoUpdated(false);
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| 47 |
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| 48 | photonMapCamera->setLodBias(0.0001);
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| 49 | }
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| 50 |
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| 51 | void OgrePhotonMapRenderingRun::updateFrame(unsigned long frameNum)
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| 52 | {
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| 53 | refreshLight();
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| 54 |
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| 55 | if(useDistance)
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| 56 | {
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| 57 | sharedRuns->updateRun(ILLUMRUN_DISTANCE_CUBEMAP, frameNum);
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| 58 | }
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| 59 |
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| 60 | Material* mat = (Material*) MaterialManager::getSingleton().getByName(materialName).getPointer();
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| 61 | GpuProgramParameters* Fparams = mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters().getPointer();
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| 62 | Fparams->setNamedConstant("lastCenter", sharedRuns->getRootPosition(ILLUMRUN_PHOTONMAP));
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| 63 |
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| 64 | SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
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| 65 | RenderQueue* rq = sm->getRenderQueue();
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| 66 | rq->clear();
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| 67 |
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| 68 | ((OgreSharedRuns*)sharedRuns->getRoot(ILLUMRUN_PHOTONMAP))->notifyCamera(photonMapCamera);
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| 69 | ((OgreSharedRuns*)sharedRuns->getRoot(ILLUMRUN_PHOTONMAP))->addRenderablesToQueue(rq);
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| 70 |
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| 71 | setMaterialForRenderables(materialName,rq);
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| 72 |
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| 73 | RenderTarget* rt = photonMapTexture->getBuffer().getPointer()->getRenderTarget();
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| 74 |
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| 75 | rt->update();
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| 76 | /*
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[808] | 77 | static int framecount = 0;
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[790] | 78 | String filename = "photon";
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[949] | 79 | filename.append(this->name);
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| 80 | //filename.append(StringConverter::toString(framecount));
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[790] | 81 | filename.append(".png");
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[808] | 82 | rt->writeContentsToFile(filename);
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| 83 | framecount++;*/
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| 84 |
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[790] | 85 | restoreMaterials();
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| 86 | }
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| 87 |
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| 88 | void OgrePhotonMapRenderingRun::refreshLight()
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| 89 | {
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| 90 | ///TODO:
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| 91 | ///search nearest light, set light params
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| 92 | SceneManager* sm = Root::getSingleton()._getCurrentSceneManager();
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| 93 | LightList list;
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| 94 | sm->_populateLightList(((OgreSharedRuns*)sharedRuns)->getRootPosition(ILLUMRUN_PHOTONMAP),100000, list);
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| 95 |
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| 96 | light = *(list.begin());
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| 97 |
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| 98 | if(light!= 0)
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| 99 | {
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| 100 | if(light->getType() == Light::LT_DIRECTIONAL)
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| 101 | {
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| 102 | Vector3 dir = light->getDirection();
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| 103 | photonMapCamera->setDirection( dir );
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[1055] | 104 | Real r = sharedRuns->getRootBoundingSphere(ILLUMRUN_PHOTONMAP).getRadius();
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| 105 | photonMapCamera->setPosition( sharedRuns->getRootPosition(ILLUMRUN_PHOTONMAP) - dir * r);
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| 106 | photonMapCamera->setProjectionType(PT_ORTHOGRAPHIC);
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| 107 | Matrix4 proj;
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| 108 | proj = Matrix4::IDENTITY;
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[1628] | 109 | proj.setScale(Vector3(1.0/r, 1.0/r, -1.5/r));
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| 110 | //proj.setTrans(Vector3(0,0,-1));
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[1055] | 111 | photonMapCamera->setCustomProjectionMatrix(true,proj);
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[790] | 112 | }
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| 113 | else
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[1055] | 114 | {
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[790] | 115 | Vector3 pos = light->getParentSceneNode()->getPosition();
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| 116 | Vector3 dir = sharedRuns->getRootPosition(ILLUMRUN_PHOTONMAP) - pos;
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| 117 | Real r = sharedRuns->getRootBoundingSphere(ILLUMRUN_PHOTONMAP).getRadius();
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| 118 | Real d = dir.length();
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| 119 | dir.normalise();
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| 120 | float mindist = 1.5 * r;
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| 121 | if(d < mindist)
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| 122 | {
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| 123 | pos -= dir * (mindist - d) ;
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| 124 | d = mindist;
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| 125 | }
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| 126 | photonMapCamera->setPosition(pos);
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| 127 | Radian alfa = Math::ASin(r/d);
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| 128 | photonMapCamera->setFOVy(2*alfa);
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| 129 | photonMapCamera->setDirection( dir );
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[1055] | 130 |
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| 131 | photonMapCamera->setNearClipDistance(std::max(0.01f, d - r));
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| 132 | photonMapCamera->setFarClipDistance(r + d);
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[790] | 133 | }
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| 134 | }
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| 135 | }
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| 136 |
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| 137 | void OgrePhotonMapRenderingRun::distanceCubeMapChanged(RenderingRun* run)
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| 138 | {
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| 139 | Material* mat = (Material*) MaterialManager::getSingleton().getByName(materialName).getPointer();
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[1722] | 140 | OgreCubeMapRenderingRun* cuberun =(OgreCubeMapRenderingRun*) (run->asOgreRenderingRun());
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| 141 | String cubemapname = cuberun->getCubeMapTextureName();
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[790] | 142 | mat->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(cubemapname);
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| 143 | }
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[949] | 144 |
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| 145 | void OgrePhotonMapRenderingRun::distanceCubeMapUpdated(RenderingRun* run)
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| 146 | {
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| 147 | Material* mat = (Material*) MaterialManager::getSingleton().getByName(materialName).getPointer();
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[1722] | 148 | OgreCubeMapRenderingRun* cuberun =(OgreCubeMapRenderingRun*) (run->asOgreRenderingRun());
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| 149 | String cubemapname = cuberun->getCubeMapTextureName();
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[949] | 150 | GpuProgramParametersSharedPtr fpParams = mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters();
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| 151 | Vector3 center = ((OgreSharedRuns*) sharedRuns)->getRootPosition(ILLUMRUN_DISTANCE_CUBEMAP);
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| 152 | fpParams->setNamedConstant("lastCenter",center);
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| 153 | }
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[790] | 154 | |
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