3D Fractal RayTrace
From Ultrafractal Wiki
3D Fractal RayTrace is a Fractal Formula in reb.ufm.
I am sure most, if not all of you, have heard of quaternions, one of the 4D extension of complex numbers. Here is a upr that uses both UF4 and UF5 formulas, as I haven't gotten around to converting 3D Fractal RayTrace to the object format. This upr takes a Julia quaternion, rotates it 30 degrees around the y-axis, and passes a cutting plane through at z = 0. The quaternion is hollow, so some of the internal structure can be seen, and because of the oblique cut, some of the "normal" outside of the quaternion is seen. One of the layers also has some image import using one of the images in imagezip.zip, which has a link on the challenge site. It also uses a quaternion as a mask layer, and has some UF5 texture toys.
Copyright © 2008 by Ron Barnett
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; Copyright © 2008 by Ron Barnett.
; Tweakable on the list
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}

