How to ONLY show Back Faces but not Front Faces in Shader

Questions & Answers
1

If you were to have an open mesh of a sphere cut in half, how would you go about making a shader that would:

  • Not be visible from the outside
  • Be visible on the inside / through the cut hole
  • If you were to view an angle where the front face is in front of the back face, the result would be transparent

It would more or less be like a model with the normals flipped… but without flipping them.

If possible how would i do this with a vertex/fragment shader?

2

You want to use the Cull attribute in your shader.