GLSL Sandbox on the Raspberry PiI hope many of you have seen the excellent and fun WebGL GLSL sandbox at http://glsl.heroku.com/. This live editing of shaders is an excellent learning tool, as it allows you to watch the consequences of any changes you make. I am constructing some simple OpenGL ES scripts as a learning resource for anyone new to it, in part as a way to help me learn it too. As part of this, I’ve written a little
