void FakeInstanceNode::doDisplay(FrameContext & frameContext, const RenderParam & rp) {
if(fakePrototype.isNull()) {
Node::doDisplay(frameContext, rp);
return;
}
auto camera = static_cast<AbstractCameraNode*>(frameContext.getCamera()->clone());
const Geometry::Matrix4x4f & cameraMatrix = frameContext.getCamera()->getWorldTransformationMatrix();
camera->setRelTransformation( fakePrototype->getWorldTransformationMatrix()
* getWorldToLocalMatrix()
* cameraMatrix);
frameContext.pushAndSetCamera(camera);
frameContext.displayNode(fakePrototype.get(), rp);
frameContext.popCamera();
}
State::stateResult_t PhotonRenderer::doEnableState(FrameContext & context, Node * node, const RenderParam & rp){
#ifdef MINSG_THESISSTANISLAW_GATHER_STATISTICS
Rendering::RenderingContext::finish();
_timer.reset();
#endif // MINSG_THESISSTANISLAW_GATHER_STATISTICS
if(!_photonSampler){
WARN("No PhotonSampler present in PhotonRenderer!");
return State::stateResult_t::STATE_SKIPPED;
}
if(!_approxScene){
WARN("No approximated Scene present in PhotonRenderer!");
return State::stateResult_t::STATE_SKIPPED;
}
auto& rc = context.getRenderingContext();
rc.setImmediateMode(true);
rc.applyChanges();
if(_fboChanged){
if(!initializeFBO(rc)){
WARN("Could not initialize FBO for PhotonRenderer!");
return State::stateResult_t::STATE_SKIPPED;
}
_fboChanged = false;
}
RenderParam newRp;
rc.pushAndSetFBO(_fbo.get());
rc.clearDepth(1.0f);
rc.applyChanges();
for(int32_t i = 0; i < _photonSampler->getPhotonNumber(); i++){
_fbo->setDrawBuffers(2);
rc.pushAndSetShader(_indirectLightShader.get());
_lightPatchRenderer->bindTBO(rc, true, false);
_photonSampler->bindPhotonBuffer(1);
context.pushAndSetCamera(_photonCamera.get());
_indirectLightShader->setUniform(rc, Rendering::Uniform("photonID", i));
rc.clearDepth(1.0f);
rc.clearColor(Util::Color4f(0.f, 0.f, 0.f, 0.f));
_approxScene->display(context, newRp);
context.popCamera();
_photonSampler->unbindPhotonBuffer(1);
_lightPatchRenderer->unbindTBO(rc);
rc.popShader();
// Accumulate all pixel values in one photon
_fbo->setDrawBuffers(0);
rc.pushAndSetShader(_accumulationShader.get());
_accumulationShader->setUniform(rc, Rendering::Uniform("photonID", i));
_accumulationShader->setUniform(rc, Rendering::Uniform("samplingWidth", static_cast<int>(_samplingWidth)));
_accumulationShader->setUniform(rc, Rendering::Uniform("samplingHeight", static_cast<int>(_samplingHeight)));
_photonSampler->bindPhotonBuffer(1);
rc.clearDepth(1.0f);
Rendering::TextureUtils::drawTextureToScreen(rc, Geometry::Rect_i(0, 0, _samplingWidth, _samplingHeight), *_indirectLightTexture.get(), Geometry::Rect_f(0.0f, 0.0f, 1.0f, 1.0f));
_photonSampler->unbindPhotonBuffer(1);
rc.popShader();
}
rc.popFBO();
rc.setImmediateMode(false);
// rc.pushAndSetShader(nullptr);
// Rendering::TextureUtils::drawTextureToScreen(rc, Geometry::Rect_i(0, 0, _samplingWidth, _samplingHeight), *(_indirectLightTexture.get()), Geometry::Rect_f(0.0f, 0.0f, 1.0f, 1.0f));
// rc.popShader();
// return State::stateResult_t::STATE_SKIP_RENDERING;
#ifdef MINSG_THESISSTANISLAW_GATHER_STATISTICS
Rendering::RenderingContext::finish();
_timer.stop();
auto& stats = context.getStatistics();
Statistics::instance(stats).addPhotonRendererTime(stats, _timer.getMilliseconds());
#endif // MINSG_THESISSTANISLAW_GATHER_STATISTICS
return State::stateResult_t::STATE_OK;
}