UEMaterials - M_LerpViz

Credits:
demofox
https://www.shadertoy.com/view/4sV3zt

Keith Maggio
https://keithmaggio.wordpress.com/2011/02/15/math-magician-lerp-slerp-and-nlerp/

Post:
https://x.com/DrkFX/status/1622326359337967617