I'm working on a knob with some LEDs around it. When the knob is all the way at 0-position only the top and bottom LEDs are on and when all the way to the right 100% all the LEDs will be on.
(the LEDs are just an image texture with some bump. With one node of a turned-off LED and one node of a LED material that is glowing.)
The way I'm planning on animating this effect is to have a Gradient node controlling the mix fac of a Mix node. My question is how do I get the gradient "butterfly pattern" of the mix fac?
- Pic 1, the knob at 0, top and bottom LEDs are on
- Pic 2, the knob at 50%
- Pic 3, the way the knob looks.