source: GTP/trunk/App/Demos/Illum/Illumination Networks Demo [OpenGL]/src/LVisDisplay.cg @ 845

struct VertexOut
{
        float4 Position                         :POSITION;
        float2 TexCoord                         :TEXCOORD0;
        float ID                                        :TEXCOORD2;
        float4 Depth                            :TEXCOORD1;
        float PSize                                     :PSIZE;
                
};


VertexOut VertexProgram(
                  float4 Position   : POSITION,
          float2 TexCoord : TEXCOORD0,
          float4 Color : COLOR0,          
          uniform float4 PSize : state.point.size,
                  uniform float4x4 modelViewProj:state.matrix.mvp
          )
{
        VertexOut Out;
        Out.ID=TexCoord.x;
    Out.PSize =PSize.x*TexCoord.y;      
        Out.Position = mul(modelViewProj, Position);
 //   Out.Depth=Out.Position.z/2+0.5;
    return Out;
}

void FragmentProgram(           VertexOut In,
                                                uniform sampler2D BbTexture,
                                                out float4 Color: COLOR//,
                                                //out float Depth:DEPTH 
                                                ) 
{       
        int intensity=round(In.ID);
        if(intensity<0)intensity=0;
        
        float thecolor=intensity;
        Color=float4(thecolor,thecolor,thecolor,tex2D(BbTexture,In.TexCoord).r);
        
        /*
        if(tex2D(BbTexture,In.TexCoord).r==0)
        {
                Depth=1;
        }
        else
        {
                Depth=In.Depth;
        }
        */
}