void
DepthPeelingStage::setupRenderScene(RenderAction* a,
Int32 iVPWidth,
Int32 iVPHeight,
bool isInitial,
bool isPing )
{
this->pushPartition(a);
{
RenderPartition *pPart = a->getActivePartition();
FrameBufferObject *pTarget = NULL;
Viewarea *pArea = a->getViewarea ();
Camera *pCam = a->getCamera ();
Background *pBack = NULL;
DepthPeelingStageDataUnrecPtr pData =
a->getData<DepthPeelingStageData *>(_iDataSlotId);
if(!pData)
{
this->initData(a, iVPWidth, iVPHeight);
}
else
{
this->updateData(a, iVPWidth, iVPHeight);
}
pData = a->getData<DepthPeelingStageData *>(_iDataSlotId);
if (isInitial)
{
pTarget = pData->getBlendFBO();
pBack = a->getBackground ();
}
else
{
if (isPing)
pTarget = pData->getPeelPingFBO();
else
pTarget = pData->getPeelPongFBO();
pBack = pData->getBackground();
}
pPart->setRenderTarget(pTarget);
if(pArea != NULL)
{
pPart->setWindow (a->getWindow());
if(pTarget != NULL)
{
pPart->calcViewportDimension(pArea->getLeft (),
pArea->getBottom(),
pArea->getRight (),
pArea->getTop (),
pTarget->getWidth (),
pTarget->getHeight ());
}
else
{
pPart->calcViewportDimension(pArea->getLeft (),
pArea->getBottom(),
pArea->getRight (),
pArea->getTop (),
a->getWindow()->getWidth (),
a->getWindow()->getHeight());
}
if(pCam != NULL)
{
Matrix m, t;
// set the projection
pCam->getProjection (m,
pPart->getViewportWidth (),
pPart->getViewportHeight());
pCam->getProjectionTranslation(t,
pPart->getViewportWidth (),
pPart->getViewportHeight());
pPart->setupProjection(m, t);
pCam->getViewing(m,
pPart->getViewportWidth (),
pPart->getViewportHeight());
pPart->setupViewing(m);
pPart->setNear (pCam->getNear());
pPart->setFar (pCam->getFar ());
pPart->calcFrustum();
}
pPart->setBackground(pBack);
}
pPart->addSetupModeBit(RenderPartition::BackgroundSetup);
pPart->pushState();
if (!isInitial)
{
FrameBufferObject* fbo =
isPing ? pData->getPeelPongFBO() : pData->getPeelPingFBO();
TextureBuffer* texbuf =
static_cast<TextureBuffer *>(fbo->getDepthAttachment());
TextureObjChunk* depthTexChunk = texbuf->getTexture();
pPart->addOverride(depthTexChunk->getClassId() + getDepthTexUnit(),
depthTexChunk );
pPart->addOverride(pData->getSpvIsPeelChunk()->getClassId(),
pData->getSpvIsPeelChunk() );
}
else
{
pPart->addOverride(pData->getSpvIsInitialChunk()->getClassId(),
pData->getSpvIsInitialChunk() );
}
pPart->addOverride(pData->getDepthChunk()->getClassId(),
pData->getDepthChunk() );
this->recurseFromThis(a);
a->useNodeList(false);
pPart->popState();
}
this->popPartition(a);
}
void DeferredShadingStage::scheduleGBufferPass(RenderAction *ract)
{
#if 0
RenderPartition *parentPart = ract->getActivePartition();
#endif
DSStageData *data = ract->getData<DSStageData *>(_iDataSlotId);
ShaderProgramChunk *shader = this->getGBufferProgram();
#if 0
UInt32 bufferCount = osgMin(getMFPixelFormats()->size(),
getMFPixelTypes ()->size() );
#endif
// create shadow maps
MFLightsType::const_iterator lIt = _mfLights.begin();
MFLightsType::const_iterator lEnd = _mfLights.end ();
for(UInt32 i = 0; lIt != lEnd; ++lIt, ++i)
{
(*lIt)->callLightEngineEnter(ract);
ShaderProgramChunk *spc = data->getShadingProgramChunks(1+i);
State *state = data->getShadingStates (1+i);
ShaderShadowMapEngine *sme = dynamic_cast<ShaderShadowMapEngine *>(
(*lIt)->getLightEngine());
if(sme != NULL)
{
// ShaderProgram *shadowVP = sme->getShadowVertexProgram ();
ShaderProgram *shadowFP = sme->getShadowFragmentProgram();
// if(shadowVP != NULL &&
// spc->getMFVertexShader()->findIndex(shadowVP) == -1 )
// {
// spc->addShader(shadowVP);
// }
if(shadowFP != NULL &&
spc->getMFFragmentShader()->findIndex(shadowFP) == -1 )
{
spc->addShader(shadowFP);
}
Int32 shadowTexUnit = sme->getForceTextureUnit() > 0 ?
sme->getForceTextureUnit() : 7;
if(sme->getEnabled() == true)
{
state->addChunk(sme->getShadowTexChunk(),
shadowTexUnit );
}
else
{
state->subChunk(TextureObjChunk::getStaticClassId(),
shadowTexUnit );
}
}
}
this->pushPartition(ract);
{
RenderPartition *part = ract->getActivePartition();
#ifdef OSG_DEBUG
part->setDebugString("DeferredShadingStage::GBufferPartition");
#endif
setupGBufferPartition(part, ract, data);
if(shader != NULL)
{
part->pushState ( );
part->addOverride(shader->getClassId(), shader);
}
this->recurseFromThis(ract);
if(shader != NULL)
part->popState();
}
this->popPartition(ract);
// create shadow maps
lIt = _mfLights.begin();
lEnd = _mfLights.end ();
for(; lIt != lEnd; ++lIt)
{
(*lIt)->callLightEngineLeave(ract);
}
}
