#include "common.h"

struct 	v2p
{
 	float2 	tc0: 		TEXCOORD0;	// base
 	float2 	tc1: 		TEXCOORD1;	// lmap
	float2	tc2:		TEXCOORD2;	// hemi
	float3	tc3:		TEXCOORD3;	// env
  	float3	c0:			COLOR0;
	float3	c1:	        COLOR1;
	float  fog	: FOG;
};

//uniform samplerCUBE 	s_env;
TextureCube	s_env;		//	Environment for forward rendering

//////////////////////////////////////////////////////////////////////////////////////////
// Pixel
float4 main( v2p I ) : SV_Target
{
//	float4	t_base 	= tex2D		(s_base,I.tc0);
//	float4	t_lmap 	= tex2D		(s_lmap,I.tc1);
//	float4	t_env 	= texCUBE	(s_env,	I.tc3);
	float4	t_base 	= s_base.Sample( smp_base, I.tc0);
	float4	t_lmap 	= s_lmap.Sample( smp_rtlinear, I.tc1);
	float4	t_env 	= s_env.Sample( smp_rtlinear, I.tc3);

	// lighting
	float3 	l_base 	= t_lmap.rgb;				// base light-map
	float3	l_hemi 	= I.c0*p_hemi(I.tc2);			// hemi
	float3 	l_sun 	= I.c1*t_lmap.a;			// sun color
	float3	light	= L_ambient + l_base + l_sun + l_hemi;

	// final-color
	float3 	base 	= lerp		(t_env,t_base,t_base.a);
	float3	final 	= light*base*2;

	//	Fogging
	final 	= lerp(fog_color, final, I.fog);
	
	// out
	return  float4	(final.r,final.g,final.b,t_base.a*I.fog*I.fog);
}