koobas.hobune.stream
Need some help with simle shader
Hello everyone. I'm zero in shader writing, but I need one for some tests. It must work like this : If the surface normal is facing the light source, it’s lit (Color1). If it’s facing more than 90 degrees away from the light source, it’s not (Color2). Can someone help me?
Sounds like you're looking for a dot product.
Have a look at these examples.
It would be nice, but I know nothing about basic shader writing, so I need raw code. It would be nice, if you can give it to me.
There are several shader languages in Unity.
If you want to leverage the lighting system, you want to write a surface shader, which is specific to Unity.
If you want to have complete control over the pixel colours, you want to write a fragment shader, which is a more general approach to shader writing.
The sample Shader "Lit/Simple Diffuse" from the latter does what you want, I believe.
