Various GLSL fragment shader programs I've written. View them runing here:
https://pdkl95.github.io/fun_with_fragment_shaders/index.html
The WebGL code and interactive editor are based on Mr.doob's code for glslsandbox.com, which is licenced under the "MIT Licence", and is "Copyright (c) 2011 Mr.doob". See LICENSE.glsl-sandbox for details.
The shaders in the /shaders/ subdir are Copyright (C) 2020 Brent Sanders.
These shaders are free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
These shaders are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License in this projet in the file "LICENSE.shaders". If not, see https://www.gnu.org/licenses/.