I just started learning GLSL shaders. As practice, I wrote a psuedo-metaball joystick. I didn't know about metaballs, but now that I do I can do some more resea

I just started learning GLSL shaders. As practice, I wrote a psuedo-metaball joystick. I didn't know about metaballs, but now that I do I can do some more research and improve my next iteration. Touch blob joystick shader: https://www.shadertoy.com/view/4lfcRf https://www.shadertoy.com/view/4lfcRf