Thread by @delaneykingrox

#Gamedevtip if you have cameras clipping through objects (especially in VR) it can really break the immersion.
One trick you can try is making a double sided version of your shader that has a black inside.

For performance, switch materials on the closest LOD with the double sided version.

If you look in your shader editor there is often a node for face direction. In amplify it is FACE. It returns 1 for facing normals and -1 for facing away.

If you saturate this you get 1 or 0, which a lerp will accept. The inside face can therefore be made black.

Now when I player sticks their face into a tree in your game, they will see black. Which makes more sense than seeing through then object, in a weird way.

This works on characters who can clip through you too in multiplayer games.

You can use facing for several tricks. For example, having the inside of clothing use the texture on the outside but multiplied by a color to be much darker. This works well on hoods and sleeves. Just remember it means you are drawing all faces on the mesh not just the front

You're welcome.

As usual I accept tips for teaching stuff at ko-fi.com/dellak
I plan to use the money to get facial surgery. Just so you know.