How do I enable backface culling for sprites?

Question

In my game, I'm using a 3D cube for the menu screen that rotates. On each side of the cube, I'm using sprite renderers for icons. The problem is that when the cube rotates, the sprites on the back of the cube are obscuring the camera. I tried writing a custom shader to do it, but I keep getting the error:

"Material uses a fixed function shader. It is not compatible with SpriteRenderer."

How do I do this?

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Answer by VesuvianPrime · Aug 02, 2014 at 11:22 PM

Hey DaemonR

The problem isn't with the geometry but with the shader itself.

Is there a particular reason why you're using the sprite shader in this case?

If you absolutely must use sprite shader, your best bet is to download the shader source: Shaders source

From there you can simply enable backface culling in your new shader.

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DaemonR · Aug 03, 2014 at 12:46 AM 0

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I stated that I had tried using my own shader, but Unity rejected it. Thanks for the link though. Editing the original script will most likely fix the problem.

VesuvianPrime · Aug 03, 2014 at 12:55 AM 0

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Sorry, it's late. I'm sure simply enabling/disabling a feature in the existing source will be 1000x easier than writing a shader from scratch.

How do I enable backface culling for sprites?

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