Blender Git Commit Log

Object Mode Engine: Fixing the 3D grid 1/2

Do not use the inverse perspective matrix inside the shader to recover world positions.
That leads to severe float imprecision leading to nasty artifacts.

Instead we compute the world view vector for each pixels and do a ray to plane intersection.
We are still getting low precision derivatives when going far away from the origin, and thus artifacts.

This commit also fixes the non-appearing negative Z axis in 3D view.