void HDRStage::changed(ConstFieldMaskArg whichField,
UInt32 origin,
BitVector details)
{
Inherited::changed(whichField, origin, details);
if(this->getRenderTarget() != NULL)
{
if((whichField & BlurWidthFieldMask) ||
(whichField & BufferFormatFieldMask))
{
this->setRenderTarget(NULL);
}
if(whichField & ExposureFieldMask)
{
_TonemapShader->updateUniformVariable("exposure", getExposure());
}
if(whichField & BlurAmountFieldMask)
{
_TonemapShader->addUniformVariable("blurAmount", getBlurAmount());
}
if(whichField & EffectAmountFieldMask)
{
_TonemapShader->addUniformVariable("effectAmount", getEffectAmount());
}
if(whichField & GammaFieldMask)
{
_TonemapShader->addUniformVariable("gamma", getGamma());
}
}
}
HDRStageDataTransitPtr HDRStage::setupStageData(Int32 iPixelWidth,
Int32 iPixelHeight)
{
HDRStageDataTransitPtr returnValue = HDRStageData::createLocal();
if(returnValue == NULL)
return returnValue;
OSG::Thread::setCurrentLocalFlags();
// Scene Target
FrameBufferObjectUnrecPtr pSceneFBO = FrameBufferObject::createLocal();
RenderBufferUnrecPtr pDepthBuffer = RenderBuffer ::createLocal();
pDepthBuffer->setInternalFormat(GL_DEPTH_COMPONENT24 );
TextureObjChunkUnrecPtr pSceneTex = TextureObjChunk::createLocal();
TextureEnvChunkUnrecPtr pSceneTexEnv = TextureEnvChunk::createLocal();
ImageUnrecPtr pImg = Image ::createLocal();
pImg->set(Image::OSG_RGB_PF,
iPixelWidth,
iPixelHeight,
1,
1,
1,
0.0,
0,
Image::OSG_FLOAT32_IMAGEDATA,
false);
pSceneTex ->setImage (pImg );
pSceneTex ->setMinFilter (GL_LINEAR );
pSceneTex ->setMagFilter (GL_LINEAR );
pSceneTex ->setWrapS (GL_CLAMP_TO_EDGE );
pSceneTex ->setWrapT (GL_CLAMP_TO_EDGE );
pSceneTex ->setInternalFormat(getBufferFormat());
pSceneTexEnv->setEnvMode (GL_REPLACE );
TextureBufferUnrecPtr pSceneTexBuffer = TextureBuffer::createLocal();
pSceneTexBuffer->setTexture(pSceneTex);
pSceneFBO->setSize(iPixelWidth, iPixelHeight);
pSceneFBO->setColorAttachment(pSceneTexBuffer, 0);
pSceneFBO->setDepthAttachment(pDepthBuffer );
pSceneFBO->editMFDrawBuffers()->push_back(GL_COLOR_ATTACHMENT0_EXT);
setRenderTarget(pSceneFBO);
// Shrink Target (w/2, h/2)
FrameBufferObjectUnrecPtr pShrinkFBO = FrameBufferObject::createLocal();
TextureObjChunkUnrecPtr pShrinkTex = TextureObjChunk::createLocal();
TextureEnvChunkUnrecPtr pShrinkTexEnv = TextureEnvChunk::createLocal();
pImg = Image ::createLocal();
pImg->set(Image::OSG_RGB_PF,
iPixelWidth / 2,
iPixelHeight / 2,
1,
1,
1,
0.0,
0,
Image::OSG_FLOAT32_IMAGEDATA,
false);
pShrinkTex ->setImage (pImg );
pShrinkTex ->setMinFilter (GL_LINEAR );
pShrinkTex ->setMagFilter (GL_LINEAR );
pShrinkTex ->setWrapS (GL_CLAMP_TO_EDGE );
pShrinkTex ->setWrapT (GL_CLAMP_TO_EDGE );
pShrinkTex ->setInternalFormat(getBufferFormat());
pShrinkTexEnv->setEnvMode (GL_REPLACE );
TextureBufferUnrecPtr pShrinkTexBuffer = TextureBuffer::createLocal();
pShrinkTexBuffer->setTexture(pShrinkTex);
pShrinkFBO->setSize(iPixelWidth / 2, iPixelHeight / 2);
pShrinkFBO->setColorAttachment(pShrinkTexBuffer, 0);
pShrinkFBO->editMFDrawBuffers()->push_back(GL_COLOR_ATTACHMENT0_EXT);
returnValue->setShrinkRenderTarget(pShrinkFBO);
// blur (w/4, h/4)
FrameBufferObjectUnrecPtr pBlurFBO = FrameBufferObject::createLocal();
TextureObjChunkUnrecPtr pBlurTex1 = TextureObjChunk ::createLocal();
TextureEnvChunkUnrecPtr pBlurTex1Env = TextureEnvChunk ::createLocal();
pImg = Image::createLocal();
pImg->set(Image::OSG_RGB_PF,
iPixelWidth / 4,
iPixelHeight / 4,
1,
1,
1,
0.0,
0,
Image::OSG_FLOAT32_IMAGEDATA,
false);
pBlurTex1 ->setImage (pImg );
pBlurTex1 ->setMinFilter (GL_LINEAR );
pBlurTex1 ->setMagFilter (GL_LINEAR );
pBlurTex1 ->setWrapS (GL_CLAMP_TO_EDGE );
pBlurTex1 ->setWrapT (GL_CLAMP_TO_EDGE );
pBlurTex1 ->setInternalFormat(getBufferFormat());
pBlurTex1Env->setEnvMode (GL_REPLACE );
TextureBufferUnrecPtr pBlurTexBuffer1 = TextureBuffer::createLocal();
pBlurTexBuffer1->setTexture(pBlurTex1);
TextureObjChunkUnrecPtr pBlurTex2 = TextureObjChunk::createLocal();
TextureEnvChunkUnrecPtr pBlurTex2Env = TextureEnvChunk::createLocal();
pImg = Image::createLocal();
pImg->set(Image::OSG_RGB_PF,
iPixelWidth / 4,
iPixelHeight / 4,
1,
1,
1,
0.0,
0,
Image::OSG_FLOAT32_IMAGEDATA,
false);
pBlurTex2 ->setImage (pImg );
pBlurTex2 ->setMinFilter (GL_LINEAR );
pBlurTex2 ->setMagFilter (GL_LINEAR );
pBlurTex2 ->setWrapS (GL_CLAMP_TO_EDGE );
pBlurTex2 ->setWrapT (GL_CLAMP_TO_EDGE );
pBlurTex2 ->setInternalFormat(getBufferFormat());
pBlurTex2Env->setEnvMode (GL_REPLACE );
TextureBufferUnrecPtr pBlurTexBuffer2 = TextureBuffer::createLocal();
pBlurTexBuffer2->setTexture(pBlurTex2);
pBlurFBO->setSize(iPixelWidth / 4,
iPixelHeight / 4);
pBlurFBO->setColorAttachment(pBlurTexBuffer1, 0);
pBlurFBO->setColorAttachment(pBlurTexBuffer2, 1);
returnValue->setBlurRenderTarget(pBlurFBO);
// general mat chunk
MaterialChunkUnrecPtr pMatChunk = MaterialChunk::createLocal();
pMatChunk->setLit(false);
// tone map material
ChunkMaterialUnrecPtr pTonemapMat = ChunkMaterial ::createLocal();
pTonemapMat->addChunk(pMatChunk );
pTonemapMat->addChunk(pSceneTex, 0);
pTonemapMat->addChunk(pSceneTexEnv, 0);
pTonemapMat->addChunk(pBlurTex1, 1);
pTonemapMat->addChunk(pBlurTex1Env, 1);
SimpleSHLChunkUnrecPtr pTonemapShader = generateHDRFragmentProgram();
pTonemapShader->addUniformVariable("sceneTex", 0);
pTonemapShader->addUniformVariable("blurTex", 1);
pTonemapShader->addUniformVariable("blurAmount", getBlurAmount ());
pTonemapShader->addUniformVariable("exposure", getExposure ());
pTonemapShader->addUniformVariable("effectAmount", getEffectAmount());
pTonemapShader->addUniformVariable("gamma", getGamma ());
pTonemapMat->addChunk(pTonemapShader, 0);
returnValue->setToneMappingMaterial(pTonemapMat);
// Shrink material
ChunkMaterialUnrecPtr pShrinkMat = ChunkMaterial::createLocal();
pShrinkMat->addChunk(pMatChunk );
pShrinkMat->addChunk(pSceneTex, 0);
pShrinkMat->addChunk(pSceneTexEnv, 0);
SimpleSHLChunkUnrecPtr pShrinkShader = generate2DShrinkHalfFilterFP();
pShrinkShader->addUniformVariable("inputTex", 0);
pShrinkMat->addChunk(pShrinkShader, 0);
returnValue->setShrinkMaterial(pShrinkMat);
// Blur material
ChunkMaterialUnrecPtr pBlurMat = ChunkMaterial::createLocal();
pBlurMat->addChunk(pMatChunk );
pBlurMat->addChunk(pShrinkTex, 0);
pBlurMat->addChunk(pShrinkTexEnv, 0);
pBlurMat->addChunk(pBlurTex1, 1);
pBlurMat->addChunk(pBlurTex1Env, 1);
pBlurMat->addChunk(pBlurTex2, 2);
pBlurMat->addChunk(pBlurTex2Env, 2);
pBlurMat->addChunk(pShrinkShader, 0);
returnValue->setBlurMaterial(pBlurMat);
// generate blur fragment programs
SimpleSHLChunkUnrecPtr pHBlurShader =
generate1DConvolutionFilterFP(getBlurWidth(),
false,
true,
iPixelWidth / 2,
iPixelHeight / 2);
pHBlurShader->addUniformVariable("inputTex", 0);
returnValue->setHBlurShader(pHBlurShader);
// VBlur Override
SimpleSHLChunkUnrecPtr pVBlurShader =
generate1DConvolutionFilterFP(getBlurWidth(),
true,
true,
iPixelWidth / 2,
iPixelHeight / 2);
pVBlurShader->addUniformVariable("inputTex", 1);
returnValue->setVBlurShader(pVBlurShader);
OSG::Thread::resetCurrentLocalFlags();
Thread::getCurrentChangeList()->commitChanges();
return returnValue;
}