Two Point Bezier Shape

A GLSL actor that provides the X and Y uniform variables for a Bezier shape along two points on a diagonal. Original bezier function by Golan Levin and Collaborators. http://www.flong.com/texts/code/shapers_bez/
Original Author @kyndinfo – 2016. Cubic Bezier through two points. http://www.kynd.info
Available at https://thebookofshaders.com/examples/?chapter=05
Adapted for Isadora by Bonemap 2020