#version 450 core
#include "common.glsl"
#include "dof_common.glsl"
// Half-res: downsampled color + signed circle of confusion (near < 0 < far).

in vec2 vUV;
layout(binding = 0) uniform sampler2D uColor;
layout(binding = 1) uniform sampler2D uDepth;
layout(location = 0) out vec4 fragColor;

void main() {
    vec3 c = texture(uColor, vUV).rgb;  // bilinear = 2x2 box at half res
    float coc = cocFromDepth(linearDepth(texture(uDepth, vUV).r), vUV);
    fragColor = vec4(c, coc);
}