float4				g_fogColor				: register(c1);

	sampler2D			texDiffuse				: register(s0);

	struct PS_INPUT
	{
		float4			diffuse					: COLOR;
		float2			uv_albedo				: TEXCOORD0;
		float1			fog						: TEXCOORD1;
	};

	struct PS_OUTPUT
	{
		float4			color					: COLOR;
	};

	PS_OUTPUT main(const PS_INPUT v)
	{
		PS_OUTPUT output;

		// Sample maps
		float4 diffuse = tex2D(texDiffuse, v.uv_albedo);

		// Multiply by vertex color
		float4 finalColor = diffuse * v.diffuse;

		// Pre-multiply diffuse by alpha
		finalColor.xyz = finalColor.xyz * finalColor.w;

		// Multiply fog by alpha
		float4 fogColor = g_fogColor * finalColor.w;

		// Interpolate between diffuse color and fog color
		output.color = lerp(fogColor.xyzw, finalColor.xyzw, v.fog.xxxx);

		return output;
	}