[tirarex]

float3 vNormal = normalize(tex2D(sNormals, IN.vTexCoords) * 2.0f - 1.0f);

float3x3 mTangentToWorld = transpose( float3x3( IN.vTangent, IN.vBinormal, IN.vNormal ) );

float3 vNormalWorld = mul( mTangentToWorld, vNormal );