#version 300 es
// Samples the software-rendered scene image (the WebGL port of scene.frag).
precision highp float;
precision highp sampler2D;

uniform sampler2D u_scene;

in vec2 v_uv;
out vec4 frag_color;

void main() {
    if (v_uv.x < 0.0 || v_uv.x > 1.0 || v_uv.y < 0.0 || v_uv.y > 1.0) discard;
    // The engine stores 0xAARRGGBB (BGRA in memory), uploaded as GL_RGBA.
    frag_color = texture(u_scene, v_uv).bgra;
}