blob: 7df7e9d88f0a92dbc200532d8b41c4a66e3fac1e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
/*
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
*/
#ifdef GL_ES
precision mediump float;
#endif
varying vec4 color;
void main (void)
{
vec2 c = 10.0 * 2.0 * (color.rg - 0.5);
c = abs((c - floor(c)) - 0.5) * 2.0;
gl_FragColor = vec4(c, 0.0, 1.0);
}
|