// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <flutter/runtime_effect.glsl>

uniform vec2 uSize;

out vec4 fragColor;

void main() {
  float v = FlutterFragCoord().y / uSize.y;
  fragColor = vec4(v, v, v, 1);
}