Has anyone work with shop_oglpath? i'm trying to make simple material for visualization textures. The easiest way is make shop_materialpath link to material with ogl properties, but its not interesting.. The idea is use simple shader only for viewport, in help we have this

shop_oglpath string The path to an OpenGL shader to use to shade the surface in the viewport.

but when i set path to my material in shop_oglpath nothing changes. If i use shop_materialpath for same operation - it works. Can anyone explane why? And how to make shop_oglpath work? Th