I use texCoord1 as an example.
in fact you have to use:
in the vertex shader:
gl_TexCoord[1] = gl_MultiTexCoord1;
or define your own output variable
out vec2 texCoord1;
texCoord1 = gl_MultiTexCoord1;
in the vertex/fragment shader:
vec4 normalFromTexture = texture(normalMap, gl_TexCoord[1]);
or define your own input variable
in vec2 texCoord1;
vec4 normalFromTexture = texture(normalMap, texCoord1);
HTH
David Callu
2011/5/4 Nan WANG <nan.c...@gmail.com>
> could you explain why here you used texCoord1?
>
> because of we setting '1' here?
> sset->setTextureAttributeAndModes(1,tex2D,osg::StateAttribute::ON);
> sset->addUniform(new osg::Uniform("tex",1));
>
> i dont think so ...
>
>
>
>
>
> Thank you!
>
> Cheers,
> Nan
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=38990#38990
>
>
>
>
>
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