#include "common.hlsli"

struct v2p
{
    float2 tc0 : TEXCOORD0; // base
    float4 c : COLOR0; // diffuse

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

// Pixel
uniform sampler s_distort;

float4 main(v2p I) : COLOR
{
    float4 distort = tex2D(s_distort, I.tc0);
    float factor = distort.a * dot(I.c.rgb, 0.33f);
    /*
    #ifdef	USE_SOFT_PARTICLES
            float2	zero = float2( 0.5, 0.5);
            float	alphaDistort;
            float4 _P = tex2Dproj( s_position, I.tctexgen);
            float spaceDepth = _P.z - I.tctexgen.z;
            if (spaceDepth < -0.1h ) spaceDepth = 100000.0h; //  Skybox doesn't draw into position buffer
            alphaDistort = saturate(1.3*spaceDepth);
    //	alphaDistort = 0;
            distort.xy = lerp  ( zero, distort.xy, alphaDistort);
    #endif	//	USE_SOFT_PARTICLES
    */
    return float4(distort.rgb, factor);
}