/**
 * @ Version: SCREEN SPACE SHADERS - UPDATE 17
 * @ Description: Blood Decal - Pixel Shader
 * @ Modified time: 2023-07-06 12:28
 * @ Author: https://www.moddb.com/members/ascii1457
 * @ Mod: https://www.moddb.com/mods/stalker-anomaly/addons/screen-space-shaders
 */

#include "common.h"

uniform float4 ssfx_blood_decals;

float4 main ( p_TL I ) : SV_Target
{
	float4 res = s_base.Sample( smp_base, I.Tex0 );

	// Color intensity
	res.rgb *= ssfx_blood_decals.x;

	// Alpha adjustments
	res.a = saturate(res.a * 1.7f - 0.7f) * ssfx_blood_decals.y;

	// Lifespan fade-out
	res.a *= 1.0 - I.Color.a;

	return float4(res.rgb, res.a);
}