Hi, i’ve done a reflective bump mapping demo but i think there’s something wrong in the code because if i move around the reflective object it reflects always rhe same part of enviroment. Please help me.
Here’s the code:
VERTEX SHADER
struct vpin
{
float4 Position;
float3 Tangent;
float3 Binormal;
float3 Normal;
float2 TexCoord;
};
struct vpout
{
float4 Position : POSITION;
float2 TexCoord0 : TEXCOORD0;
float4 TexCoord1 : TEXCOORD1;
float4 TexCoord2 : TEXCOORD2;
float4 TexCoord3 : TEXCOORD3;
};
vpout main ( vpin IN,
uniform float4x4 ModelViewProj,
uniform float4x4 ModelView,
uniform float4x4 ModelViewIT,
uniform float4 EyePos,
uniform float BumpScale )
{
vpout OUT;
OUT.Position = mul( ModelViewProj, IN.Position );
float4 WSPosition = mul( ModelView, IN.Position );
float4 EyeVector = -WSPosition;
float3x3 TangentMatrix;
TangentMatrix[0] = IN.Tangent;
TangentMatrix[1] = IN.Binormal;
TangentMatrix[2] = IN.Normal;
OUT.TexCoord0 = IN.TexCoord;
OUT.TexCoord1.xyz = mul( TangentMatrix, ModelViewIT[0].xyz );
OUT.TexCoord2.xyz = mul( TangentMatrix, ModelViewIT[1].xyz );
OUT.TexCoord3.xyz = mul( TangentMatrix, ModelViewIT[2].xyz );
OUT.TexCoord1.w = EyeVector.x;
OUT.TexCoord2.w = EyeVector.y;
OUT.TexCoord3.w = EyeVector.z;
return OUT;
}
PIXEL SHADER
struct fpin
{
float2 TexCoord0 : TEXCOORD0;
float4 TexCoord1 : TEXCOORD1;
float4 TexCoord2 : TEXCOORD2;
float4 TexCoord3 : TEXCOORD3;
};
struct fpout
{
float3 Color : COLOR;
};
fpout main ( fpin IN,
uniform sampler2D NormalMap,
uniform samplerCUBE CubeMap,
uniform float4 Color )
{
fpout OUT;
float4 NormalTex = tex2D( NormalMap, IN.TexCoord0 ) * 2.0 - 1.0;
float3 EyeVector = float3( IN.TexCoord1.w, IN.TexCoord2.w, IN.TexCoord3.w );
float3 Normal = float3( dot( IN.TexCoord1.xyz, NormalTex.xyz ),
dot( IN.TexCoord2.xyz, NormalTex.xyz ),
dot( IN.TexCoord3.xyz, NormalTex.xyz ) );
float3 CubeTex = texCUBE( CubeMap, reflect( -EyeVector, Normal ) );
OUT.Color = CubeTex;
return OUT;
}
