/**
Cg code that does the delux-maps.

Deluxmaps:
These are maps with a worldspace average to light vector, so you can simulate
any lightsource with them, area, skys.... and have some level of bumpmapping.
So the problem is we have to put this into tangent space per pixel and renormalize!
*/
/*
struct myVertexOut {
    float4 tanVec : COLOR0;
    float4 binVec : COLOR1;    
    float4 matColor : TEXCOORD0; //materials color map
	float4 matNorm  : TEXCOORD1; //materials tangentspace normal map
    float4 luxColor : TEXCOORD2; //luxColor map (aka an ordinary lightmap)
    float4 deLuxVec : TEXCOORD3; //"to Light" map in worldspace.
};*/
/*
float4 main(myVertexOut I,
            uniform sampler2D normalMap,
            uniform sampler2D intensityMap,
            uniform sampler2D colorMap) : COLOR
{
    // Lookup the normal map
    float4 normal = 2 * (tex2D(normalMap, I.texCoord0.xy) - 0.5);

    // Multiply
    // 3 X 2 matrix generated using lightDir and halfAngle with
    // scaled normal
    // followed by lookup in intensity map with the result.
    float2 intensCoord = float2(dot(I.lightDir.xyz, normal.xyz),
                                dot(I.halfAngle.xyz, normal.xyz));
    float4 intensity = tex2D(intensityMap, intensCoord);

    // Lookup color
    float4 color = tex2D(colorMap, I.texCoord3.xy);

    // Blend/Modulate intensity with color
    return color * intensity;
}
*/