float4 diff = tex2D( Tex0, inTex0.xy );
float3 normal = tex2D( Tex1, inTex0.xy ).rgb * 2 - 1;
outDiffuseColor = diff.rgb;
outOpacity = diff.a;
outSpecularColor = float3( 0, 0, 0 );
outNormal = mul( normal, TBN );
