[2285] | 1 | #include "OgreCausticReceiverRenderTechnique.h"
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| 2 | #include "OgreTechniqueGroup.h"
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| 3 | #include "OgreIlluminationManager.h"
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| 4 | #include "OgreCausticCubeMapRenderingRun.h"
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| 5 | #include "OgreCubeMapRenderingRun.h"
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| 6 |
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| 7 | OgreCausticReceiverRenderTechnique::OgreCausticReceiverRenderTechnique(
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| 8 | int maxcasters,
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| 9 | String causticVertexProgram,
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| 10 | String causticFragmentProgram,
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[2299] | 11 | SceneBlendFactor passBlendingSRC,
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| 12 | SceneBlendFactor passBlendingDEST,
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[2285] | 13 | Pass* pass,
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| 14 | OgreRenderable* parentRenderable,
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| 15 | OgreTechniqueGroup* parentTechniqueGroup)
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| 16 | :RenderTechnique( parentRenderable, parentTechniqueGroup),
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| 17 | OgreRenderTechnique(pass, parentRenderable, parentTechniqueGroup),
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| 18 | CausticReceiverRenderTechnique(parentRenderable, parentTechniqueGroup)
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| 19 | {
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[2299] | 20 | this->passBlendingSRC = passBlendingSRC;
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| 21 | this->passBlendingDEST = passBlendingDEST;
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[2285] | 22 | this->maxcasters = maxcasters;
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| 23 | this->causticVertexProgram = causticVertexProgram;
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| 24 | this->causticFragmentProgram = causticFragmentProgram;
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| 25 |
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| 26 | //insert new passes
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| 27 | Ogre::Technique* techn = pass->getParent();
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| 28 | Technique::PassIterator it = techn->getPassIterator();
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| 29 |
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| 30 | int index = 0;
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| 31 | while(it.hasMoreElements())
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| 32 | {
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| 33 | if( it.getNext() == pass)
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| 34 | break;
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| 35 | index++;
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| 36 | it.moveNext();
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| 37 | }
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| 38 |
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| 39 | index++;
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| 40 | for(int i = 0; i < maxcasters; i++)
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| 41 | {
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| 42 | int lastpass = techn->getNumPasses();
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| 43 | Pass* newpass = techn->createPass();
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| 44 | passes.push_back(newpass);
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| 45 |
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| 46 | newpass->setVertexProgram(causticVertexProgram);
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| 47 | newpass->setFragmentProgram(causticFragmentProgram);
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| 48 |
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| 49 | GpuProgramParameters* Vparams = newpass->getVertexProgramParameters().getPointer();
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| 50 | Vparams->setNamedAutoConstant("WorldViewProj",
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| 51 | GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
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| 52 | Vparams->setNamedAutoConstant("World",
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| 53 | GpuProgramParameters::ACT_WORLD_MATRIX);
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| 54 | GpuProgramParameters* Fparams = newpass->getFragmentProgramParameters().getPointer();
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| 55 | //Fparams->setNamedConstant("cubeMapCameraPosition", Vector3(0,0,0));
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| 56 |
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| 57 | TextureUnitState* st = newpass->createTextureUnitState();
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| 58 | TextureUnitState* st2 = newpass->createTextureUnitState();
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| 59 |
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| 60 | st->setTextureFiltering(TFO_BILINEAR);
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| 61 | st2->setTextureFiltering(TFO_BILINEAR);
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| 62 |
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[2299] | 63 | newpass->setSceneBlending(passBlendingSRC, passBlendingDEST);
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| 64 | newpass->setDepthBias(1);
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[2285] | 65 |
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| 66 | techn->movePass(lastpass, index);
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| 67 | }
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| 68 |
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| 69 | }
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| 70 |
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| 71 | OgreCausticReceiverRenderTechnique::~OgreCausticReceiverRenderTechnique()
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| 72 | {
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| 73 |
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| 74 | }
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| 75 |
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| 76 | void OgreCausticReceiverRenderTechnique::update(unsigned long frameNum)
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| 77 | {
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| 78 | //find nearest casters
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| 79 | causticCasters.clear();
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| 80 | OgreIlluminationManager::getSingleton().getNearestCausticCasters(
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| 81 | ((OgreSharedRuns*)sharedRuns)->getRootPosition(),
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| 82 | &causticCasters,
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| 83 | maxcasters);
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| 84 | //fill passes
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| 85 | for(unsigned int i = 0; i < passes.size(); i++)
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| 86 | {
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| 87 | if(causticCasters.size() > i)
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| 88 | {
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| 89 |
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| 90 | //update caustic caster
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| 91 | causticCasters.at(i)->updateRun(ILLUMRUN_PHOTONMAP, frameNum);
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| 92 | causticCasters.at(i)->updateRun(ILLUMRUN_CAUSTIC_CUBEMAP, frameNum);
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| 93 |
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| 94 | //set texture to pass
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| 95 | OgreCausticCubeMapRenderingRun* cauCubeRun =
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| 96 | (OgreCausticCubeMapRenderingRun*) causticCasters.at(i)->
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| 97 | getRun(ILLUMRUN_CAUSTIC_CUBEMAP)->asOgreRenderingRun();
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| 98 | passes.at(i)->getTextureUnitState(0)->setTextureName(
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| 99 | cauCubeRun->getCausticCubeMapTextureName());
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| 100 |
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| 101 | OgreCubeMapRenderingRun* distCubeRun =
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| 102 | (OgreCubeMapRenderingRun*) causticCasters.at(i)->
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| 103 | getRun(ILLUMRUN_DISTANCE_CUBEMAP)->asOgreRenderingRun();
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| 104 | passes.at(i)->getTextureUnitState(1)->setTextureName(
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| 105 | distCubeRun->getCubeMapTextureName());
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| 106 |
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| 107 | //set caster position
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| 108 | GpuProgramParameters* Fparams = passes.at(i)->getFragmentProgramParameters().getPointer();
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| 109 | Fparams->setNamedConstant("cubeMapCameraPosition",
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| 110 | causticCasters.at(i)->getRootPosition(ILLUMRUN_CAUSTIC_CUBEMAP));
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| 111 | Fparams->setNamedConstant("attenuation", cauCubeRun->getAttenuation());
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| 112 | passes.at(i)->setActive(true);
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| 113 | }
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| 114 | else
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| 115 | passes.at(i)->setActive(false);
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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 | namespace CausticReceiverParsers
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| 122 | {
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| 123 | ///Technique parsers
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| 124 | void parseMaxCasters(String& params, RenderTechniqueFactory* factory)
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| 125 | {
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| 126 | OgreCausticReceiverRenderTechniqueFactory* f = (OgreCausticReceiverRenderTechniqueFactory*) factory;
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| 127 | f->maxcasters = StringConverter::parseInt(params);
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| 128 | }
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| 129 |
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| 130 | void parseVertexProgram(String& params, RenderTechniqueFactory* factory)
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| 131 | {
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| 132 | OgreCausticReceiverRenderTechniqueFactory* f = (OgreCausticReceiverRenderTechniqueFactory*) factory;
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| 133 | f->causticVertexProgram = params;
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| 134 | }
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| 135 |
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| 136 | void parseFragmentProgram(String& params, RenderTechniqueFactory* factory)
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| 137 | {
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| 138 | OgreCausticReceiverRenderTechniqueFactory* f = (OgreCausticReceiverRenderTechniqueFactory*) factory;
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| 139 | f->causticFragmentProgram = params;
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| 140 | }
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| 141 |
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[2299] | 142 | SceneBlendFactor convertBlendFactor(const String& param)
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| 143 | {
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| 144 | if (param == "one")
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| 145 | return SBF_ONE;
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| 146 | else if (param == "zero")
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| 147 | return SBF_ZERO;
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| 148 | else if (param == "dest_colour")
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| 149 | return SBF_DEST_COLOUR;
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| 150 | else if (param == "src_colour")
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| 151 | return SBF_SOURCE_COLOUR;
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| 152 | else if (param == "one_minus_dest_colour")
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| 153 | return SBF_ONE_MINUS_DEST_COLOUR;
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| 154 | else if (param == "one_minus_src_colour")
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| 155 | return SBF_ONE_MINUS_SOURCE_COLOUR;
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| 156 | else if (param == "dest_alpha")
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| 157 | return SBF_DEST_ALPHA;
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| 158 | else if (param == "src_alpha")
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| 159 | return SBF_SOURCE_ALPHA;
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| 160 | else if (param == "one_minus_dest_alpha")
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| 161 | return SBF_ONE_MINUS_DEST_ALPHA;
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| 162 | else if (param == "one_minus_src_alpha")
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| 163 | return SBF_ONE_MINUS_SOURCE_ALPHA;
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| 164 | }
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| 165 |
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| 166 | void parsePassBlending(String& params, RenderTechniqueFactory* factory)
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| 167 | {
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| 168 | OgreCausticReceiverRenderTechniqueFactory* f = (OgreCausticReceiverRenderTechniqueFactory*) factory;
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| 169 | StringVector vecparams = StringUtil::split(params, " \t");
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| 170 | if(vecparams.size() == 1)
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| 171 | {
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| 172 | if (vecparams[0] == "none")
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| 173 | {
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| 174 | f->passBlendingSRC = SBF_ONE;
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| 175 | f->passBlendingDEST = SBF_ZERO;
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| 176 | }
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| 177 | if (vecparams[0] == "add")
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| 178 | {
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| 179 | f->passBlendingSRC = SBF_ONE;
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| 180 | f->passBlendingDEST = SBF_ONE;
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| 181 | }
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| 182 | else if (vecparams[0] == "modulate")
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| 183 | {
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| 184 | f->passBlendingSRC = SBF_DEST_COLOUR;
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| 185 | f->passBlendingDEST = SBF_ZERO;
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| 186 | }
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| 187 | else if (vecparams[0] == "colour_blend")
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| 188 | {
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| 189 | f->passBlendingSRC = SBF_SOURCE_COLOUR;
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| 190 | f->passBlendingDEST = SBF_ONE_MINUS_SOURCE_COLOUR;
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| 191 | }
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| 192 | else if (vecparams[0] == "alpha_blend")
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| 193 | {
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| 194 | f->passBlendingSRC = SBF_SOURCE_ALPHA;
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| 195 | f->passBlendingDEST = SBF_ONE_MINUS_SOURCE_ALPHA;
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| 196 | }
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| 197 | }
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| 198 | else if (vecparams.size() == 2)
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| 199 | {
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| 200 | f->passBlendingSRC = convertBlendFactor(vecparams[0]);
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| 201 | f->passBlendingDEST = convertBlendFactor(vecparams[1]) ;
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| 202 | }
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| 203 | }
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[2285] | 204 | }
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| 205 | OgreCausticReceiverRenderTechniqueFactory::OgreCausticReceiverRenderTechniqueFactory()
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| 206 | {
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| 207 | typeName = "CausticReceiver";
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| 208 |
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| 209 | using namespace CausticReceiverParsers;
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| 210 | //register parsers
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| 211 | this->attributeParsers.insert(AttribParserList::value_type("max_caster_count", (ILLUM_ATTRIBUTE_PARSER) parseMaxCasters));
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| 212 | this->attributeParsers.insert(AttribParserList::value_type("vertex_program_name", (ILLUM_ATTRIBUTE_PARSER) parseVertexProgram));
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| 213 | this->attributeParsers.insert(AttribParserList::value_type("fragment_program_name", (ILLUM_ATTRIBUTE_PARSER) parseFragmentProgram));
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[2299] | 214 | this->attributeParsers.insert(AttribParserList::value_type("pass_blending", (ILLUM_ATTRIBUTE_PARSER) parsePassBlending));
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[2285] | 215 |
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| 216 | }
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| 217 |
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| 218 | OgreRenderTechnique* OgreCausticReceiverRenderTechniqueFactory::createInstance(
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| 219 | IllumTechniqueParams* params,
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| 220 | Pass* pass,
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| 221 | OgreRenderable* parentRenderable,
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| 222 | OgreTechniqueGroup* parentTechniqueGroup)
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| 223 | {
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| 224 | //reset parameters
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| 225 | maxcasters = 1;
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| 226 | causticVertexProgram = "GTP/Basic/Shaded_VS";
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| 227 | causticFragmentProgram = "GTP/Caustic/GatherCaustic_Cube_PS";
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[2299] | 228 | passBlendingSRC = SBF_DEST_COLOUR;
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| 229 | passBlendingDEST = SBF_ONE;
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[2285] | 230 |
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| 231 | parseParams(params);
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| 232 |
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| 233 | OgreCausticReceiverRenderTechnique* result = new OgreCausticReceiverRenderTechnique(
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| 234 | maxcasters,
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| 235 | causticVertexProgram,
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| 236 | causticFragmentProgram,
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[2299] | 237 | passBlendingSRC,
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| 238 | passBlendingDEST,
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[2285] | 239 | pass,
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| 240 | parentRenderable,
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| 241 | parentTechniqueGroup);
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| 242 |
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| 243 | return result;
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| 244 | }
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