sstoy - Simple ShaderToy viewer for X & GLES2=============================================A simple offline ShaderToy-compatible GLSL shader viewer forX using OpenGL ES 2.0, inspired by the Suckless Philosophy.Requirements------------In order to build sstoy you will need the Xlib, EGL andOpenGL ES 2.0 development headers installed on your system.The program can also be demanding on GPU hardware, so themore powerful GPU you have, the better.Installation------------Edit config.mk to match your local setup (the /usr/local prefixis used by default).Afterwards enter the following command to build and installsstoy (if necessary as root):    make clean installRunning-------Simply invoke the 'sstoy' command. To quit, press either theEscape or Q keys.