struct a2v
{
    float4 Position : POSITION; //in object space
    float3 Normal : NORMAL;
	float2 Alpha : TEXCOORD0;
};

struct v2f
{
    float4 Position : POSITION; //in projection space
    float4 Normal : TEXCOORD0;
};

v2f main(a2v IN, uniform float4x4 world, uniform float4x4 viewProj)
{
    v2f OUT;

    OUT.Position = mul(world, IN.Position);
	
    IN.Normal = normalize(IN.Normal);

    OUT.Normal = float4(IN.Normal,0.0);
	
    OUT.Position = mul(viewProj, OUT.Position);
	
    return OUT;
}