Blender Git Commit Log

Edit Mesh: Do not use barycentric coord in EDGE_FIX shader and ...

... display vertex even when occluded.

Add back the vertex display because occluded vertex are not visible when
the triangle is almost parallel to the view.

The problem with the barycentric coord is that they are hard to work with
and their derivatives not enough precise to compute the vertex positions.

So we need to pass the vertices scree positions down to the fragment shader.