based on a research paper called Dual-Color Mixing for Fused Deposition Modeling Printers by Tim Reiner, Nathan Carr, Radomír Mech, Ondrej Štava, Carsten Dachsbacher & Gavin Miller.
Illustrative screenshots taken from the posted video:
I haven't looked at the paper, but from the display it seems to be two anti-phase-locked sinusoids of different colours that are offset, and either the offset or amplitude is varied to provide a variable proportion between the two colours. The technique could be applied to a flat shape, but for structural stability during printing it likely makes sense to include some base curvature unless it's part of an existing more stable structure.
Technique presented by u/Vicckkky on Reddit, and
Illustrative screenshots taken from the posted video:
I haven't looked at the paper, but from the display it seems to be two anti-phase-locked sinusoids of different colours that are offset, and either the offset or amplitude is varied to provide a variable proportion between the two colours. The technique could be applied to a flat shape, but for structural stability during printing it likely makes sense to include some base curvature unless it's part of an existing more stable structure.