[Coin-discuss] How to use multiple SoTexture3 nodes for a SoShaderProgram

[Matthew Saltzman]

Nat-

I think you want coin3d.org, not coin-or.org.

Good luck!

On Fri, 2010-01-15 at 14:59 +0100, Reynolds, Nathaniel wrote: 
> Hi,
> 
> I don't have any previous OpenGL experience, and now I'm trying to create a shader program (using glsl) that utilizes 3 different SoTexture3 nodes. I know I have to set a unique texture unit value for each of these nodes, but SoTextureUnit doesn't seem to accomplish this. How else can I do this? I've been trying something like...
> 
> Separator{
>     TextureUnit{ value 0 }
>     Texture3{  }
>     TextureUnit{ value 1 }
>     Texture3{  }
>     TextureUnit{ value 2 }
>     Texture3{  }
>     ShaderProgram {
>       shaderObject [
>         VertexShader {
>           sourceProgram "myvertexshader.glsl"
>         }
>         FragmentShader {
>           sourceProgram "myfragmentshader.glsl"
>           parameter [
>             ShaderParameter1i { name "sameAsInGlslCode0" value 0 }
>             ShaderParameter1i { name "sameAsInGlslCode1" value 1 }
>             ShaderParameter1i { name "sameAsInGlslCode2" value 2 }
>           ]
>         }
>       ]
>     }
>     Cube { }
>   }
> 
> Any help would be much appreciated.
> 
> Thanks
> Nat
> 
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-- 
                Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs