#include "common.hlsli"

struct v2p
{
    float2 tc0 : TEXCOORD0;
    float4 c : COLOR0;

//	Igor: for additional depth dest
#ifdef USE_SOFT_PARTICLES
    float4 tctexgen : TEXCOORD1;
#endif //	USE_SOFT_PARTICLES

    float4 hpos : SV_POSITION;
    float fog : FOG;
};

//	Must be less than view near
#define DEPTH_EPSILON 0.1h

float4 main(v2p I) : SV_Target
{
    float4 result = I.c * s_base.Sample(smp_base, I.tc0);

    //	Igor: additional depth test
#ifdef USE_SOFT_PARTICLES
    float4 Point = GbufferGetPoint(I.hpos.xy);
	
    float spaceDepth = Point.z - I.tctexgen.z;
    result *= Contrast(saturate(spaceDepth * 1.3f), 2.0f);
#endif //	USE_SOFT_PARTICLES

    clip(result.a - (0.01f / 255.0f));

    result.w *= I.fog;
    result.xyz *= I.fog;

    return PushGamma(result);
}