2 sided material - Backface culling

Hi, This is my first post here. I noticed there are tons of requests about 2-side material. In effect it's strange there is no a flag to enable/disable this option.
I noticed lot of artists, here being disappointed about effective modeling 2-side in 3D models, I agree with them.

Unity is a great engine and optimize by default some things, in this case the back side of the normals.
The only thing you have to do is simple, you have to disable this optimization. How? Simply add this in your shader's code:

Cull off

I suggest you to start reading this page
http://unity3d.com/support/documentation/Components/SL-Reference.html

Hope this helps!






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Yes, but the lighting is wrong on the back side if you do that. Sometimes that's not a problem, but other times modeling two sides is the correct answer.

--Eric

 

Hi,
i want to add the "Cull Off" to the Reflective/Specular-BuiltinShader.

If i add it, i get a syntax-error.
I´m unexperienced at shader-programming.
I´ve already tested with it, but no way.

Can somebody explain it where to put it in?

Code (csharp):

1. Shader "Reflective/SpecularBackface" {
2.     Properties {
3.         _Color ("Main Color", Color) = (1,1,1,1)
4.         _SpecColor ("Specular Color", Color) = (0.5, 0.5, 0.5, 1)
5.         _Shininess ("Shininess", Range (0.01, 1)) = 0.078125
6.         _ReflectColor ("Reflection Color", Color) = (1,1,1,0.5)
7.         _MainTex ("Base (RGB) Gloss (A)", 2D) = "white" {}
8.         _Cube ("Reflection Cubemap", Cube) = "_Skybox" { TexGen CubeReflect }
9.  
10.  
11.     }
12.     SubShader {
13.         UsePass "Reflective/VertexLit/BASE"
14.         UsePass "Specular/PPL"
15.         Cull Off
16.        
17.     }
18.     FallBack "Reflective/VertexLit", 1
19.    
20.  
21. }

 

Thanks for your fast reply.
I´ve already tested it with "Cull Off and Cull off".
I think its in the wrong statement of the code, isnt it?

Although getting the error the inside plane gets red...

 

How do I access the diffuse shader for editing? or do I create a second blank shader that just renders the opposite side of the mesh? Does this get applied to all objects in game or to a specific one?

Note: I have a character imported into unity and her jacket hood is single sided, causing it to be see through from the inside. Its already skinned so i cant go back and edit it due to time constraints. I don't mind if the inside is not rendered properly since you rarely see it but i would like it to at least not be invisible.

 

Man, thats a lot of work when you can just export a *.dae format and it will just work...

 

from where i can enable and disable backface culling.?