[790] | 1 | #include "OgrePhotonMapRenderingRun.h"
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| 2 | //#include "OgreIlluminationManager.h"
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| 3 | #include "OgreDistanceCubeMapRenderingRun.h"
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| 4 |
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| 5 |
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| 6 |
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| 7 | OgrePhotonMapRenderingRun::OgrePhotonMapRenderingRun(OgreSharedRuns* sharedRuns,
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| 8 | String name,
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| 9 | unsigned long startFrame,
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| 10 | unsigned long updateInterval,
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| 11 | unsigned int resolution,
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| 12 | String materialName,
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| 13 | bool useDistance
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| 14 | )
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| 15 | :PhotonMapRenderingRun( startFrame, updateInterval)
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| 16 | , OgreRenderingRun(startFrame, updateInterval)
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| 17 | , RenderingRun(startFrame, updateInterval)
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| 18 | {
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| 19 | this->useDistance = useDistance;
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| 20 | this->sharedRuns = sharedRuns;
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| 21 | this->name = name;
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| 22 | this->resolution = resolution;
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| 23 | this->light = 0;
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| 24 | this->materialName = materialName;
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| 25 |
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| 26 | createPhotonMap();
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| 27 | }
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| 28 |
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| 29 | void OgrePhotonMapRenderingRun::createPhotonMap()
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| 30 | {
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| 31 | TexturePtr texPtr = Ogre::TextureManager::getSingleton().createManual(name,
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| 32 | "default",
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| 33 | TEX_TYPE_2D,
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| 34 | resolution,
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| 35 | resolution,
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| 36 | 0,
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| 37 | 0,
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| 38 | PF_FLOAT32_RGBA,
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| 39 | TU_RENDERTARGET);
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| 40 | photonMapTexture = texPtr.getPointer();
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| 41 | photonMapCamera = Root::getSingleton()._getCurrentSceneManager()->createCamera(name + "_CAMERA");
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| 42 | //add viewport to rendertarget
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| 43 | HardwarePixelBuffer* hpb = (photonMapTexture->getBuffer()).getPointer();
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| 44 | RenderTarget* rt = hpb->getRenderTarget();
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| 45 | Viewport* v = rt->addViewport(photonMapCamera);
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| 46 | v->setOverlaysEnabled(false);
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| 47 | rt->setAutoUpdated(false);
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| 48 |
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| 49 | photonMapCamera->setLodBias(0.0001);
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| 50 | }
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| 51 |
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| 52 | void OgrePhotonMapRenderingRun::updateFrame(unsigned long frameNum)
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| 53 | {
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| 54 | refreshLight();
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| 55 |
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| 56 | if(useDistance)
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| 57 | {
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| 58 | sharedRuns->updateRun(ILLUMRUN_DISTANCE_CUBEMAP, frameNum);
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| 59 | }
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| 60 |
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| 61 | Material* mat = (Material*) MaterialManager::getSingleton().getByName(materialName).getPointer();
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| 62 | GpuProgramParameters* Fparams = mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters().getPointer();
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| 63 | Fparams->setNamedConstant("lastCenter", sharedRuns->getRootPosition(ILLUMRUN_PHOTONMAP));
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| 64 |
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| 65 | SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
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| 66 | RenderQueue* rq = sm->getRenderQueue();
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| 67 | rq->clear();
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| 68 |
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| 69 | ((OgreSharedRuns*)sharedRuns->getRoot(ILLUMRUN_PHOTONMAP))->notifyCamera(photonMapCamera);
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| 70 | ((OgreSharedRuns*)sharedRuns->getRoot(ILLUMRUN_PHOTONMAP))->addRenderablesToQueue(rq);
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| 71 |
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| 72 | setMaterialForRenderables(materialName,rq);
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| 73 |
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| 74 | RenderTarget* rt = photonMapTexture->getBuffer().getPointer()->getRenderTarget();
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| 75 |
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| 76 | rt->update();
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| 77 | /*
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[808] | 78 | static int framecount = 0;
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[790] | 79 | String filename = "photon";
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[949] | 80 | filename.append(this->name);
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| 81 | //filename.append(StringConverter::toString(framecount));
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[790] | 82 | filename.append(".png");
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[808] | 83 | rt->writeContentsToFile(filename);
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| 84 | framecount++;*/
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| 85 |
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[790] | 86 | restoreMaterials();
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| 87 | }
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| 88 |
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| 89 | void OgrePhotonMapRenderingRun::refreshLight()
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| 90 | {
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| 91 | ///TODO:
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| 92 | ///search nearest light, set light params
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| 93 | SceneManager* sm = Root::getSingleton()._getCurrentSceneManager();
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| 94 | LightList list;
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| 95 | sm->_populateLightList(((OgreSharedRuns*)sharedRuns)->getRootPosition(ILLUMRUN_PHOTONMAP),100000, list);
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| 96 |
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| 97 | light = *(list.begin());
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| 98 |
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| 99 | if(light!= 0)
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| 100 | {
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| 101 | if(light->getType() == Light::LT_DIRECTIONAL)
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| 102 | {
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| 103 | Vector3 dir = light->getDirection();
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| 104 | photonMapCamera->setDirection( dir );
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[1055] | 105 | Real r = sharedRuns->getRootBoundingSphere(ILLUMRUN_PHOTONMAP).getRadius();
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| 106 | photonMapCamera->setPosition( sharedRuns->getRootPosition(ILLUMRUN_PHOTONMAP) - dir * r);
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| 107 | photonMapCamera->setProjectionType(PT_ORTHOGRAPHIC);
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| 108 | Matrix4 proj;
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| 109 | proj = Matrix4::IDENTITY;
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[1628] | 110 | proj.setScale(Vector3(1.0/r, 1.0/r, -1.5/r));
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| 111 | //proj.setTrans(Vector3(0,0,-1));
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[1055] | 112 | photonMapCamera->setCustomProjectionMatrix(true,proj);
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[790] | 113 | }
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| 114 | else
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[1055] | 115 | {
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[790] | 116 | Vector3 pos = light->getParentSceneNode()->getPosition();
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| 117 | Vector3 dir = sharedRuns->getRootPosition(ILLUMRUN_PHOTONMAP) - pos;
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| 118 | Real r = sharedRuns->getRootBoundingSphere(ILLUMRUN_PHOTONMAP).getRadius();
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| 119 | Real d = dir.length();
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| 120 | dir.normalise();
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| 121 | float mindist = 1.5 * r;
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| 122 | if(d < mindist)
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| 123 | {
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| 124 | pos -= dir * (mindist - d) ;
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| 125 | d = mindist;
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| 126 | }
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| 127 | photonMapCamera->setPosition(pos);
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| 128 | Radian alfa = Math::ASin(r/d);
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| 129 | photonMapCamera->setFOVy(2*alfa);
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| 130 | photonMapCamera->setDirection( dir );
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[1055] | 131 |
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| 132 | photonMapCamera->setNearClipDistance(std::max(0.01f, d - r));
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| 133 | photonMapCamera->setFarClipDistance(r + d);
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[790] | 134 | }
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| 135 | }
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| 136 | }
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| 137 |
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| 138 | void OgrePhotonMapRenderingRun::distanceCubeMapChanged(RenderingRun* run)
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| 139 | {
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| 140 | Material* mat = (Material*) MaterialManager::getSingleton().getByName(materialName).getPointer();
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| 141 | OgreDistanceCubeMapRenderingRun* cuberun =(OgreDistanceCubeMapRenderingRun*) (run->asOgreRenderingRun());
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| 142 | String cubemapname = cuberun->getDistanceCubeMapTextureName();
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| 143 | mat->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(cubemapname);
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| 144 | }
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[949] | 145 |
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| 146 | void OgrePhotonMapRenderingRun::distanceCubeMapUpdated(RenderingRun* run)
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| 147 | {
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| 148 | Material* mat = (Material*) MaterialManager::getSingleton().getByName(materialName).getPointer();
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| 149 | OgreDistanceCubeMapRenderingRun* cuberun =(OgreDistanceCubeMapRenderingRun*) (run->asOgreRenderingRun());
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| 150 | String cubemapname = cuberun->getDistanceCubeMapTextureName();
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| 151 | GpuProgramParametersSharedPtr fpParams = mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters();
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| 152 | Vector3 center = ((OgreSharedRuns*) sharedRuns)->getRootPosition(ILLUMRUN_DISTANCE_CUBEMAP);
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| 153 | fpParams->setNamedConstant("lastCenter",center);
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| 154 | }
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[790] | 155 | |
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