void FrustumShadowData::updateShadowCasterReceiverBox(const AABBox<float> &shadowCasterReceiverBox, bool forceUpdateAllShadowMap)
{
if(areIdenticalAABBox(shadowCasterReceiverBox, this->shadowCasterReceiverBox) && !forceUpdateAllShadowMap)
{
this->shadowCasterReceiverBoxUpdated = false;
}else
{
this->shadowCasterReceiverBox = shadowCasterReceiverBox;
this->lightProjectionMatrix = shadowCasterReceiverBox.toProjectionMatrix();
this->shadowCasterReceiverBoxUpdated = true;
}
}
/**
* Updates frustum shadow data (models, shadow caster/receiver box, projection matrix)
*/
void ShadowManager::updateFrustumShadowData(const Light *const light, ShadowData *const shadowData)
{
if(light->hasParallelBeams())
{ //sun light
for(unsigned int i=0; i<splittedFrustum.size(); ++i)
{
AABBox<float> aabboxSceneIndependent = createSceneIndependentBox(splittedFrustum[i], light, shadowData->getLightViewMatrix());
OBBox<float> obboxSceneIndependentViewSpace = shadowData->getLightViewMatrix().inverse() * OBBox<float>(aabboxSceneIndependent);
const std::set<Model *> models = modelOctreeManager->getOctreeablesIn(obboxSceneIndependentViewSpace);
shadowData->getFrustumShadowData(i)->setModels(models);
AABBox<float> aabboxSceneDependent = createSceneDependentBox(aabboxSceneIndependent, obboxSceneIndependentViewSpace,
models, shadowData->getLightViewMatrix());
shadowData->getFrustumShadowData(i)->setShadowCasterReceiverBox(aabboxSceneDependent);
shadowData->getFrustumShadowData(i)->setLightProjectionMatrix(aabboxSceneDependent.toProjectionMatrix());
}
}else
{
throw std::runtime_error("Shadow not supported on omnidirectional light.");
}
}