mirror of
https://github.com/RPCS3/glslang.git
synced 2025-03-04 08:37:10 +00:00
112e2858cf
When constructing a matrix from another matrix with smaller dimensions, there's no need to extract the scalars out of columns and rebuild the resulting matrix from scalars - instead, we can just construct shorter vectors with OpShuffle and combine them to the final result. This keeps the common casts such as mat3(mat4) in vector registers, which may improve performance for some GPUs, and cleans up output of translation tools like SPIRV-Cross. Fixes #1412.