Change Details

These mutable pointers present problems with ownership in relation to proper copy-on-write for attributes. The simplest solution is to just remove them and retrieve the layers from `CustomData` when they are needed. This also removes the complexity and redundancy of having to update the pointers as the curves change. A similar change will apply to meshes and point clouds.

These mutable pointers present problems with ownership in relation to proper copy-on-write for attributes. The simplest solution is to just remove them and retrieve the layers from `CustomData` when they are needed. This also removes the complexity and redundancy of having to update the pointers as the curves change. A similar change will apply to meshes and point clouds. One downside of this change is that it makes random access with RNA slower. However, it's simple to just use the RNA attribute API instead, which is unaffected. In this patch I updated Cycles to do that.

These mutable pointers present problems with ownership in relation to proper copy-on-write for attributes. The simplest solution is to just remove them and retrieve the layers from `CustomData` when they are needed. This also removes the complexity and redundancy of having to update the pointers as the curves change. A similar change will apply to meshes and point clouds. One downside of this change is that it makes random access with RNA slower. However, it's simple to just use the RNA attribute API instead, which is unaffected. In this patch I updated Cycles to do that.