source: GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/shadow.cg @ 2891

struct appdata {
        float3 Position : POSITION;
        float3 Normal : NORMAL;
};


struct vpconn {
        float4 Hposition : POSITION;
        float4 TexCoord0 : TEXCOORD0;
        float4 TexCoord1 : TEXCOORD1;
        float4 Color0 : COLOR0;
};


vpconn main(appdata IN,
                        uniform float4x4 WorldViewProj,
                        uniform float4x4 TexTransform,
                        uniform float3x3 WorldIT,
                        uniform float3 LightVec)
{
        vpconn OUT;
        
        float3 worldNormal = normalize(mul(WorldIT, IN.Normal));
        
        float ldotn = max(dot(LightVec, worldNormal), 0.0);
        OUT.Color0.xyz = ldotn.xxx;
        
        float4 tempPos;
        tempPos.xyz = IN.Position.xyz;
        tempPos.w = 1.0;
        
        OUT.TexCoord0 = mul(TexTransform, tempPos);
        OUT.TexCoord1 = mul(TexTransform, tempPos);
        
        OUT.Hposition = mul(WorldViewProj, tempPos);
        
        return OUT;
}


struct v2f_simple {
        float4 Hposition : POSITION;
        float4 TexCoord0 : TEXCOORD0;
        float4 TexCoord1 : TEXCOORD1;
        float4 Color0 : COLOR0;
};


float4 main(v2f_simple IN,
                        uniform sampler2D ShadowMap,
                        uniform sampler2D SpotLight) : COLOR
{
        float4 shadow = tex2D(ShadowMap, IN.TexCoord0.xy);
        float4 spotlight = tex2D(SpotLight, IN.TexCoord1.xy);
        float4 lighting = IN.Color0;
        return shadow * spotlight * lighting;
}