2015-06-07 Some shader toy demos SHADER_TOY "Rotating Structure" by iq https://www.shadertoy.com/view/XtSGDK "Hyperlepsy" https://www.shadertoy.com/view/4lB3WV "Twisted Columns" https://www.shadertoy.com/view/Xl2GRc "Simple color palettes" by iq: http://www.i "Edge of Atmosphere" ( Atmosphere Scattering ) https://www.shadertoy.com/view/XlXGzB