Hans Goudey
3152d68b70
Previously the function had a fair amount of ugly boilerplate to avoid allocating the temporary layers array, and then free it if necessary. `blender::Vector` solves that problem more elegantly. Passing a span, using references in a few cases, and using a switch statement also make the functions simpler. This refactoring is in preparation for D14583 and D14685. Differential Revision: https://developer.blender.org/D15011