I love shadertoy.com but I can't stand typing in a non vi(m) editor. So this replicates the basic functionality (no audio or VR craziness) of shadertoy.com. I still have a number of small improvments and features I want to add or try out and of course I can/should simplify the code to the bare minimum necessary but it works well enough already.

usage: ./shadertoy filename [refreshdelay]

shadertoy will try to reload/recompile the fragment shader in filename every refreshdelay seconds.

shadertoy is under the MIT license.