| // Copyright 2017 Google Inc. 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; | |
| } |