| #version 320 es |
| |
| // 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. |
| |
| precision highp float; |
| |
| layout(location = 0) out vec4 fragColor; |
| |
| layout(location = 0) uniform float a; |
| |
| void main() { |
| fragColor = vec4( |
| // sign is negative which results to -1.0, and -1.0 + 1.0 is 0.0 |
| sign(-72.45) + a, |
| // sign is negative which results to -1.0, and -1.0 + 2.0 is 1.0 |
| sign(-12.34) + 2.0 * a, |
| 0.0, |
| // sign is positive which results to 1.0 |
| sign(a * 0.1234)); |
| } |
| |
