f2b3403145
This modify most shader using the GBuffer to use the `ClosureUndetermined`. This in turn reduces the amount of duplicated data in the `GBufferReader` structure. The most important part is the usage of fixed array indices to access the `GBufferReader.closures[]`. This avoid the struct to be moved from local register to device memory and remove a huge performance penalty. Pull Request: https://projects.blender.org/blender/blender/pulls/116772