First attempt at iridescent quaternion set render. With mitsuba, @_Laurent 's iridescent plugin. more to come. Using: https://www.thingiverse.com/thing:22283 pic.twitter.com/guoV7rdW3L
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some of the strange next steps: change the iridescence width (which will require modification to @_Laurent 's plugin), so that it knows about some feature of the quaternion julia set.
other modifications: modified lattice qcd here, or to vary the index of refraction internally
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