animations {
    workspace-switch {
        spring damping-ratio=0.9 stiffness=800 epsilon=0.0001
    }

    horizontal-view-movement {
        spring damping-ratio=0.9 stiffness=800 epsilon=0.0001
    }

    window-open {
        duration-ms 200
        curve "linear"

        custom-shader r"
          vec4 open_color(vec3 coords_geo, vec3 size_geo) {
            float p0 = niri_clamped_progress;
            float p  = smoothstep(0.0, 1.0, p0);

            vec2 size   = size_geo.xy;
            vec2 center = size * 0.5;
            vec2 pos    = coords_geo.xy * size;

            float scale = mix(0.01, 1.0, p);

            vec2 scaled_pos = (pos - center) / scale + center;
            vec2 uv = scaled_pos / size;

            if (uv.x < 0.0 || uv.x > 1.0 ||
                uv.y < 0.0 || uv.y > 1.0) {
                return vec4(0.0, 0.0, 0.0, 0.0);
            }

            return texture2D(niri_tex, uv);
          }
        "
    }

    window-close {
        duration-ms 300
        curve "linear"

        custom-shader r"
          vec4 close_color(vec3 coords_geo, vec3 size_geo) {
            float p0 = niri_clamped_progress;
            float p  = smoothstep(0.0, 1.0, p0);

            vec2 size   = size_geo.xy;
            vec2 center = size * 0.5;
            vec2 pos    = coords_geo.xy * size;

            float scale = mix(1.0, 0.01, p);

            vec2 scaled_pos = (pos - center) / scale + center;
            vec2 uv = scaled_pos / size;

            if (uv.x < 0.0 || uv.x > 1.0 ||
                uv.y < 0.0 || uv.y > 1.0) {
                return vec4(0.0, 0.0, 0.0, 0.0);
            }

            return texture2D(niri_tex, uv);
          }
        "
    }
}