I wanted to be able to write simple fullscreen fragment shaders locally with a decent editor, and have live reloading of the preview, so i put this together.
Note: This is a really simple local version of the excellent shadertoy, it's currently lacking Texture, Audio and VR support.
To install required dependencies, mostly grunt stuff, just run npm install
Just run grunt
Point your favorite browser to localhost:8080
Edit the files in the workbench folder and they will regenerate the files in the output folder www and if your browser has a livereload plugin installed, it will reload the preview page.
time - Local time
mouse - Mouse position
resolution - Screen resolution