// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

precision mediump float;
uniform vec4 u_include;   // include scissor (x_min, y_min, x_max, y_max)
varying vec2 v_offset;
varying vec4 v_color;

void main() {
  vec2 include = step(u_include.xy, v_offset) * step(v_offset, u_include.zw);
  gl_FragColor = v_color * include.x * include.y;
}