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Controls what Terrain heightmap data to synchronize when there are changes to the heightmap texture.
|None||Does not synchronize the height data nor the LOD data.|
|HeightOnly||Synchronizes only height data of the heightmap texture from the GPU back to CPU memory.|
|HeightAndLod||Synchronizes height data of the heightmap texture from the GPU back to CPU memory. Then computes LOD data, used for determining the tessellation level, from the height data.|