//
// normal map(texture), bumpmap
// 
//

// output to fragment program
struct v2f {
        float4 position    	: POSITION;
        float3 normal		: TEXCOORD0;
};

void main(
float4 f(v2f In) : COLOR
{     
	float4 color = float4(In.normal,1);
	color.x = -color.x;
	color.y = -color.y;
	return color * 0.5 + 0.5;
}
