Simple atoms

atoms.hlsl

atom NORMAL_W NormalFromInput(interface context) needs NORMAL_O
{
	return mul(context.normal_o, World);
}

atom NORMAL_W NormalFromMap(interface context) needs NORMAL_O, UV, TBN, MAP_NORMAL, SAMPLER_POINT 
{
	float3 normal = map_normal.Sample(sampler_point, context.uv);
	normal = mul(normal, context.tbn);
	normal = normalize(context.normal_o + normal);

	return normal;
}