Compare refraction angel to TIR angle math problem

[pixelgrip]

@CarlG

I’m pretty clueless around vectors, but maybe CombineRGB doesn’t work like that with all UV configurations? Could try mixing in geometry/normal instead after the normal map, or modulate the normal map strength?

I have tryed with xyz nodes,the same result.Lower the strength make it less visible but the bug is still there.Maybe it is not a bug,since these are vectors they might need different math.

@CarlG

Note that I’m mixing base coat with flakes, I’m not replacing it.

Yes,in my build the flakes has seperate glossy shader.

In my search for a solution i have found this BA thread

Baking Normals within other maps?

Hi everyone! Lately I’ve been investigating a lot in the subject of maps baking and such for using the techniques in Luke’s Escape short film and also for an upcoming tutorial series. Here is the situation: I have high-poly mesh and a low-poly mesh. Even though most of the detail of the model is in the high-poly mesh, I still created some little details in a normal map that are not in the highpoly model. Now the question: If I want to bake my normal maps, is there a way in which I can bake …

With math taken from this page.
https://blog.selfshadow.com/publications/blending-in-detail/

I think i give it a try,if such simple mixing does not work.

@Secrop ,is this normal solution from the thread still valid or have you found a better math ?

edit,i think i know whats happend with the constant color ramp mix.
Since the linear scale of the colorramp represents the vector angles,i have cut off the lower angles in my posted example.
But how can we make a constant distribution seperation with vectors? If this should result in a even distribution this would need to be fragmentet somehow.

Edit,tested again.Even the direct voronoi output as mix fac gives this strange normals.What is that?