FIndirectLightingCacheAllocation* FIndirectLightingCache::CreateAllocation(int32 BlockSize, const FBoxSphereBounds& Bounds, bool bPointSample, bool bUnbuiltPreview)
{
check(BlockSize > 1 || bPointSample);
FIndirectLightingCacheAllocation* NewAllocation = new FIndirectLightingCacheAllocation();
FIndirectLightingCacheBlock NewBlock;
//@todo - don't allocate point samples from the layout, they don't go through the volume texture
if (AllocateBlock(BlockSize, NewBlock.MinTexel))
{
NewBlock.TexelSize = BlockSize;
CalculateBlockPositionAndSize(Bounds, BlockSize, NewBlock.Min, NewBlock.Size);
FVector Scale;
FVector Add;
FVector MinUV;
FVector MaxUV;
CalculateBlockScaleAndAdd(NewBlock.MinTexel, NewBlock.TexelSize, NewBlock.Min, NewBlock.Size, Scale, Add, MinUV, MaxUV);
VolumeBlocks.Add(NewBlock.MinTexel, NewBlock);
NewAllocation->SetParameters(NewBlock.MinTexel, NewBlock.TexelSize, Scale, Add, MinUV, MaxUV, bPointSample, bUnbuiltPreview);
}
return NewAllocation;
}
FIndirectLightingCacheAllocation* FIndirectLightingCache::CreateAllocation(int32 BlockSize, const FBoxSphereBounds& Bounds, bool bOpaqueRelevance)
{
FIndirectLightingCacheAllocation* NewAllocation = new FIndirectLightingCacheAllocation();
FIndirectLightingCacheBlock NewBlock;
if (AllocateBlock(BlockSize, NewBlock.MinTexel))
{
NewBlock.TexelSize = BlockSize;
CalculateBlockPositionAndSize(Bounds, BlockSize, NewBlock.Min, NewBlock.Size);
FVector Scale;
FVector Add;
FVector MinUV;
FVector MaxUV;
CalculateBlockScaleAndAdd(NewBlock.MinTexel, NewBlock.TexelSize, NewBlock.Min, NewBlock.Size, Scale, Add, MinUV, MaxUV);
VolumeBlocks.Add(NewBlock.MinTexel, NewBlock);
NewAllocation->SetParameters(NewBlock.MinTexel, NewBlock.TexelSize, Scale, Add, MinUV, MaxUV, bOpaqueRelevance);
}
return NewAllocation;
}