//========= Copyright © 1996-2007, Valve Corporation, All rights reserved. ============//

// STATIC: "FOW"						"0..1"

#include "shader_constant_register_map.h"
#include "common_fog_ps_fxc.h"
#include "fow_ps_fxc.h"

sampler BaseSampler1					: register( s1 );	// Base map 1

#if ( FOW == 1 )

sampler FoWSampler					: register( s10 );	// Fog of War

#endif


struct PS_INPUT
{
	float4 projPos							: POSITION;	
	float2 vBaseTexCoord					: TEXCOORD0;
#if ( FOW == 1 )
	float2 vFowCoord						: TEXCOORD3;
#endif
};


float4 main( PS_INPUT i ) : COLOR
{
#if !defined( _X360 )
	if ( i.vBaseTexCoord.x < 0.0 || i.vBaseTexCoord.x > 1.0 || i.vBaseTexCoord.y < 0.0 || i.vBaseTexCoord.y > 1.0 )
	{
		discard;
	}
#endif

	float3 vResult = tex2D( BaseSampler1, i.vBaseTexCoord.xy ) * cFlashlightColor.rgb;

#if ( FOW == 1 )
//	return float4( vFoWResult, 0, 0, 255 );
	vResult.rgb = CalcFoW( FoWSampler, i.vFowCoord, vResult.rgb );
#endif

	float fogFactor = 0.0f;
	
	return FinalOutput( float4( vResult, 1.0 ), fogFactor, PIXELFOGTYPE, TONEMAP_SCALE_LINEAR );
}