Kévin Dietrich
214a56ce8c
This adds memory barriers to use with `GPU_memory_barrier` to ensure that writes to a vertex or index buffer issued before the barrier are completed after it, so they can be safely read later by another shader. `GPU_BARRIER_VERTEX_ATTRIB_ARRAY` should be used for vertex buffers (`GPUVertBuf`), and `GPU_BARRIER_ELEMENT_ARRAY` should be used for index buffers (`GPUIndexBuf`). Reviewed By: fclem Differential Revision: https://developer.blender.org/D13595