https://glslsandbox.com/e#77263.0 #extension GL_OES_standard_derivatives : enable precision highp float; uniform float time; uniform vec2 mouse; uniform vec2 resolution; void main( void ) { vec2 position = ( gl_FragCoord.xy / resolution.xy…

//return x * x * (3.0 - 2.0 * x); return 6.0*x*x*x*x*x - 15.0*x*x*x*x + 10.0*x*x*x;