source: GTP/branches/IllumWPdeliver2008dec/IlluminationWP/demos/OgreGames/CarGame/Media/materials/programs/GameTools_SoftShadow.hlsl @ 3255

struct VertOut
{
        float4 hPosition        :POSITION;      
        float2 texCoord         :TEXCOORD;      
        float3 wPosition        :TEXCOORD1;
        float3 wNormal          :TEXCOORD2;     
};


VertOut deaultVS(float4 position : POSITION,
                float3 normal:NORMAL,
                float2 texCoord : TEXCOORD0,
                uniform float4x4 world_IT,
                uniform float4x4 worldViewProj,
                uniform float4x4 world)
{
  VertOut OUT;
  OUT.texCoord = texCoord;
  OUT.hPosition = mul(worldViewProj, position);  
  OUT.wPosition = mul(world, position).xyz;
  OUT.wNormal = mul( normal, world_IT);
  //OUT.wNormal = normal;
  return OUT;    
}

float4 deaultPS(VertOut IN,
                                uniform samplerCUBE CubeMap : register(s1),
                                uniform sampler2D Texture : register(s0),
                                uniform float3 cubeMapCameraPosition):COLOR
{
        float4 Color = float4(1,1,1,1); 
        
        float3 dir = IN.wPosition - cubeMapCameraPosition;
        float4 shadow = texCUBE(CubeMap, float3(dir.xy,-dir.z) );
                        
        Color = tex2D(Texture, IN.texCoord) * (1.0- shadow);
                
        return Color;
}


float4 deault2PS(VertOut IN,
                                uniform samplerCUBE CubeMap : register(s0),
                                uniform float3 cubeMapCameraPosition,
                                uniform float3 lightPosition,
                                uniform float3 cameraPos
                                ):COLOR
{
        float4 Color = float4(1,1,1,1); 
        
        float3 dir = IN.wPosition - cubeMapCameraPosition;
        float4 shadow = texCUBE(CubeMap, float3(dir.xy,-dir.z) );
        
        IN.wNormal = normalize(IN.wNormal);
        float3 V = normalize(IN.wPosition - cameraPos);
        float3 L = normalize(lightPosition - IN.wPosition);
        float3 H = normalize(L + V);
        float4 lighting = lit(dot(IN.wNormal, L),dot(IN.wNormal, H), 80);
        
                        
        Color = (1.0 - shadow ) *  lighting.y * float4(0.4, 0.7, 0.6, 1) + lighting.z;
                
        return Color;
}