Loïc Molinari authored Feb 15, 2023 and Pekka Paalanen committed Jun 12, 2023

Let the graphics hardware handle the transformation from surface
position to texture coordinates. Paint nodes now have a single vertex
position attribute from which texture coordinates are derived. A new
vertex shader variant handles the transformation.

Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>