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Performance optimizations in deferred lighting shaders

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Created structures for alpha transparency and occlusion culling
Fixed memory allocation issue in KREngine.mm (pointer to NSDictionary allocated on stack retained and later dereferenced when popped)

--HG--
extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%4074
This commit is contained in:
kearwood
2012-08-23 16:55:46 +00:00
parent 6d7e7d9abb
commit 1efbb63ecf
16 changed files with 157 additions and 71 deletions
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29
KREngine/KREngine/Classes/KRInstance.cpp
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@@ -65,6 +65,15 @@ KRMat4 &KRInstance::getModelMatrix() {
#if TARGET_OS_IPHONE
void KRInstance::loadModel() {
if(m_pModel == NULL) {
m_pModel = m_pContext->getModelManager()->getModel(m_model_name.c_str());
if(m_pModel->hasTransparency()) {
m_pContext->notify_sceneGraphModify(this);
}
}
}
void KRInstance::render(KRCamera *pCamera, KRContext *pContext, KRBoundingVolume &frustrumVolume, KRMat4 &viewMatrix, KRVector3 &cameraPosition, KRVector3 &lightDirection, KRMat4 *pShadowMatrices, GLuint *shadowDepthTextures, int cShadowBuffers, KRNode::RenderPass renderPass) {
KRNode::render(pCamera, pContext, frustrumVolume, viewMatrix, cameraPosition, lightDirection, pShadowMatrices, shadowDepthTextures, cShadowBuffers, renderPass);
@@ -72,10 +81,7 @@ void KRInstance::render(KRCamera *pCamera, KRContext *pContext, KRBoundingVolume
if(renderPass != KRNode::RENDER_PASS_DEFERRED_LIGHTS && renderPass != KRNode::RENDER_PASS_FORWARD_TRANSPARENT && renderPass != KRNode::RENDER_PASS_FLARES) {
// Don't render meshes on second pass of the deferred lighting renderer, as only lights will be applied
if(m_pModel == NULL) {
m_pModel = pContext->getModelManager()->getModel(m_model_name.c_str());
}
loadModel();
if(m_pModel != NULL && (getExtents(pContext).test_intersect(frustrumVolume) || renderPass == RENDER_PASS_SHADOWMAP)) {
@@ -120,11 +126,7 @@ void KRInstance::render(KRCamera *pCamera, KRContext *pContext, KRBoundingVolume
void KRInstance::calcExtents(KRContext *pContext) {
KRNode::calcExtents(pContext);
if(m_pModel == NULL) {
m_pModel = pContext->getModelManager()->getModel(m_model_name.c_str());
}
assert(m_pModel != NULL);
loadModel();
KRMesh *pMesh = m_pModel->getMesh();
KRBoundingVolume mesh_bounds = KRBoundingVolume(KRVector3(pMesh->getMinX(), pMesh->getMinY(), pMesh->getMinZ()), KRVector3(pMesh->getMaxX(), pMesh->getMaxY(), pMesh->getMaxZ()), m_modelMatrix);
if(m_pExtents) {
@@ -132,4 +134,13 @@ void KRInstance::calcExtents(KRContext *pContext) {
} else {
m_pExtents = new KRBoundingVolume(mesh_bounds);
}
}
bool KRInstance::hasTransparency() {
if(m_pModel) {
return m_pModel->hasTransparency();
} else {
return false;
}
}