source: downloads/Samples/Media/DeferredShadingMedia/DeferredShading/material/glsl/nm_vs.glsl @ 1

/******************************************************************************
Copyright (c) W.J. van der Laan

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/** Deferred shading framework
        // W.J. :wumpus: van der Laan 2005 //
        
        Material shader: Normal mapped
*/
varying vec3 normal;
varying vec3 tangent_;
varying vec3 binormal;

varying vec2 texCoord0;
varying float depth;

attribute vec3 tangent;

void main()                    
{
   vec4 projPos = gl_ModelViewProjectionMatrix * gl_Vertex;
   
   gl_Position = projPos;
   depth = projPos.w;
   texCoord0 = vec2(gl_MultiTexCoord0);
   
   normal = vec3(gl_ModelViewMatrix*vec4(gl_Normal,0));
   tangent_ = vec3(gl_ModelViewMatrix*vec4(tangent,0));
   binormal = cross(normal, tangent_);
   
}