42 lines
1.4 KiB
Text
42 lines
1.4 KiB
Text
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/**
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Cg code that does the delux-maps.
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Deluxmaps:
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These are maps with a worldspace average to light vector, so you can simulate
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any lightsource with them, area, skys.... and have some level of bumpmapping.
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So the problem is we have to put this into tangent space per pixel and renormalize!
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*/
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/*
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struct myVertexOut {
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float4 tanVec : COLOR0;
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float4 binVec : COLOR1;
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float4 matColor : TEXCOORD0; //materials color map
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float4 matNorm : TEXCOORD1; //materials tangentspace normal map
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float4 luxColor : TEXCOORD2; //luxColor map (aka an ordinary lightmap)
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float4 deLuxVec : TEXCOORD3; //"to Light" map in worldspace.
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};*/
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/*
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float4 main(myVertexOut I,
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uniform sampler2D normalMap,
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uniform sampler2D intensityMap,
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uniform sampler2D colorMap) : COLOR
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{
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// Lookup the normal map
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float4 normal = 2 * (tex2D(normalMap, I.texCoord0.xy) - 0.5);
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// Multiply
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// 3 X 2 matrix generated using lightDir and halfAngle with
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// scaled normal
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// followed by lookup in intensity map with the result.
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float2 intensCoord = float2(dot(I.lightDir.xyz, normal.xyz),
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dot(I.halfAngle.xyz, normal.xyz));
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float4 intensity = tex2D(intensityMap, intensCoord);
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// Lookup color
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float4 color = tex2D(colorMap, I.texCoord3.xy);
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// Blend/Modulate intensity with color
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return color * intensity;
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}
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*/
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