Sci-fi 3D printer > How do I control particle colors?


^ mock up

Straight vertical multicolor spikes along a border of a glowing shape that rises gradually revealing the 3D shape.

Here’s the tricky part for me:
Color spikes as seen. Color hue that matches the angle from the center of the emitter of the spikes.
HELP PLEASE!

spikes2.blend (308.1 KB)