I assigned the same material to an entity with ent_mtlset and directly
by setting my.material. The render result is completely different and
i have no clue why and how to change this.

Any help is appreciated.

You can download the sample on the link below.

I do need ent_mtlset because i would like to use the relief shader from slin
and assign it to multi material models.





Sample Project

Picture: Block on the left using ent_mtlset shows not the expected result, on the right with my.material everything works fine

I played around with it for a while.
The shader is not visible for me when I apply it to both blocks with ent_mtlset, it works fine when setting the material for both as my.material and if I do it as you had it, the shader works on both blocks but vecAmbient is different.
I am not sure because I may missed something important, but I´d say that this is a bug..

Thanks for looking into. It is really strange that the shader does not work at all if it is assigned with ent_mtlset to both blocks.
Now i am confident that it is not completely my fault and i will move it bugs.

The relief shader looks really great. Thanks for sharing it.