AMD GPUs do not appear to produce consistent results with other GPUs when using textureGather in the Metal backend. Disabling for now to ensure correct function of outline rendering. This may require an additional sub-pixel offset in the texture sampling calls, to achieve correct behaviour. Authored by Apple: Michael Parkin-White Ref T103412 Ref T96261 Reviewed By: fclem Maniphest Tasks: T103412, T96261 Differential Revision: https://developer.blender.org/D16934