Normal Dot selection in Materials?

Mitabula · November 30, 2018, 7:04pm

Hello!
I am looking for a feature in Unreal like this in Blender:

I have looked in google but i dont know any more words to describe this effect.
Basically you choose a direction of a spherical mask on a spherical mesh which you then can use to shadow a sphere from one side.

Thanks!

Mitabula · November 30, 2018, 7:22pm

Thanks! VertexNormalWS does work for me:

Mitabula · November 30, 2018, 7:24pm

Actually no, it was the RadialGradientExpotencial

redbox · November 30, 2018, 7:09pm

Dot(N, L)

Which means simple Dot operation between two vectors Normal and LightVector. As normal you can use VertexNormalWS or Normal map texture transformed from tangent to world. Light vector can be any vector3 parameter.