#version 310 es
precision highp float;
precision highp int;

#include "colorUtils.glsl"

layout(location = TEXCOORD0) in vec2 v_texCoord;  
layout(location = COLOR0) in vec4 v_color;

layout(binding = 0) uniform sampler2D u_tex0;
layout(binding = 1) uniform sampler2D u_tex1;

layout(std140) uniform fs_ub {
    vec3 u_hsv;
};

layout(location = SV_Target0) out vec4 FragColor;

void main() 
{ 
    vec4 texColor = vec4(texture(u_tex0, v_texCoord).rgb, texture(u_tex1, v_texCoord).r);
    texColor.rgb *= texColor.a; // Premultiply with Alpha channel
    
    texColor.rgb = transformHSV(texColor.rgb, u_hsv);

    FragColor = texColor * v_color; 
}