| restoreRenderTexture | When true, indicates that this function restores RenderTexture.active |
Releases the allocated resources of this PaintContext.
This function releases the sourceRenderTexture and destinationRenderTexture.
When restoreRenderTexture is true, it also restores RenderTexture.active to the value saved as _oldRenderTexture.
This function is called internally by TerrainPaintUtility.EndPaintHeightmap, TerrainPaintUtility.EndPaintTexture and TerrainPaintUtility.ReleaseContextResources.