// Traditional burn appearance, orange glowy look
animations {
    workspace-switch {
        duration-ms 300
        curve "ease-out-cubic"
    }

    window-open {
        duration-ms 500
        curve "linear"
        custom-shader r"
            float hash(vec2 p) {
                return fract(sin(dot(p, vec2(127.1, 311.7))) * 43758.5453);
            }
            float noise(vec2 p) {
                vec2 i = floor(p);
                vec2 f = fract(p);
                f = f * f * (3.0 - 2.0 * f);
                return mix(mix(hash(i), hash(i + vec2(1.0, 0.0)), f.x),
                           mix(hash(i + vec2(0.0, 1.0)), hash(i + vec2(1.0, 1.0)), f.x), f.y);
            }
            vec4 burn_open(vec3 coords_geo, vec3 size_geo) {
                if (coords_geo.x < 0.0 || coords_geo.x > 1.0 || coords_geo.y < 0.0 || coords_geo.y > 1.0) {
                    return vec4(0.0);
                }
                float progress = niri_clamped_progress;
                vec2 uv = coords_geo.xy;
                vec3 coords_tex = niri_geo_to_tex * vec3(uv, 1.0);
                vec4 color = texture2D(niri_tex, coords_tex.st);

                float edge_dist = min(min(uv.x, 1.0 - uv.x), min(uv.y, 1.0 - uv.y));
                float n = noise(uv * 8.0 + niri_random_seed * 100.0) * 0.3;
                float burn_line = edge_dist + n;
                float threshold = progress * 0.8;

                vec3 ember_inner = vec3(1.0, 0.3, 0.0);
                vec3 ember_outer = vec3(1.0, 0.8, 0.2);

                if (burn_line < threshold - 0.08) {
                    return color;
                } else if (burn_line < threshold) {
                    vec3 ember = mix(ember_inner, ember_outer, (burn_line - threshold + 0.08) / 0.08);
                    return vec4(mix(ember, color.rgb, 0.3), color.a);
                } else {
                    return vec4(0.0);
                }
            }
            vec4 open_color(vec3 coords_geo, vec3 size_geo) {
                return burn_open(coords_geo, size_geo);
            }
        "
    }

    window-close {
        duration-ms 500
        curve "linear"
        custom-shader r"
            float hash(vec2 p) {
                return fract(sin(dot(p, vec2(127.1, 311.7))) * 43758.5453);
            }
            float noise(vec2 p) {
                vec2 i = floor(p);
                vec2 f = fract(p);
                f = f * f * (3.0 - 2.0 * f);
                return mix(mix(hash(i), hash(i + vec2(1.0, 0.0)), f.x),
                           mix(hash(i + vec2(0.0, 1.0)), hash(i + vec2(1.0, 1.0)), f.x), f.y);
            }
            vec4 burn_close(vec3 coords_geo, vec3 size_geo) {
                if (coords_geo.x < 0.0 || coords_geo.x > 1.0 || coords_geo.y < 0.0 || coords_geo.y > 1.0) {
                    return vec4(0.0);
                }
                float progress = niri_clamped_progress;
                vec2 uv = coords_geo.xy;
                vec3 coords_tex = niri_geo_to_tex * vec3(uv, 1.0);
                vec4 color = texture2D(niri_tex, coords_tex.st);

                float edge_dist = min(min(uv.x, 1.0 - uv.x), min(uv.y, 1.0 - uv.y));
                float n = noise(uv * 8.0 + niri_random_seed * 100.0) * 0.3;
                float burn_line = edge_dist + n;
                float threshold = progress * 0.8;

                vec3 ember_inner = vec3(1.0, 0.3, 0.0);
                vec3 ember_outer = vec3(1.0, 0.8, 0.2);

                if (burn_line > threshold + 0.08) {
                    return color;
                } else if (burn_line > threshold) {
                    vec3 ember = mix(ember_inner, ember_outer, 1.0 - (burn_line - threshold) / 0.08);
                    return vec4(mix(ember, color.rgb, 0.3), color.a);
                } else {
                    return vec4(0.0);
                }
            }
            vec4 close_color(vec3 coords_geo, vec3 size_geo) {
                return burn_close(coords_geo, size_geo);
            }
        "
    }
}