pdbourke@ccu1.aukuni.ac.nz (Bourke) (04/16/91)
I am interested in finding out what techniques people use for rendering
4 dimesional objects, ie: techniques that help one visualise such beasts.
At the moment I do things like look at 2D projections, generate contour
solids, and colour (yes thats how we spell it down here) depth cueing of
wireframe images. I do this for the 4D equivalents of the cube, tetrhedron,
octahedron, prism, and pyramid. I would like to extend it to a sphere and
the torus.
Thanks in advance.
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From: pdbourke@ccu1.aukuni.ac.nz
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====================================================================steve@Advansoft.COM (Steve Savitzky) (04/17/91)
In article <1991Apr16.074924.22830@ccu1.aukuni.ac.nz> pdbourke@ccu1.aukuni.ac.nz (Bourke) writes:
I am interested in finding out what techniques people use for rendering
4 dimesional objects, ie: techniques that help one visualise such beasts.
At the moment I do things like look at 2D projections, generate contour
solids, and colour (yes thats how we spell it down here) depth cueing of
wireframe images. I do this for the 4D equivalents of the cube, tetrhedron,
octahedron, prism, and pyramid. I would like to extend it to a sphere and
the torus.
So far I do random rotations of a cube (3-7 dimensions, though
anything above 5 can't even *begin* to be comprehended), with optional
stereopsis (split pair or red-blue). I also allow perspective to be
varied. I'm going to try putting stroke-font text on the faces,
spheres on the vertices, and making the wires into cylinders.
You wouldn't happen to know what the other Platonic solids in 4-D are?
(I understand there are 7, as opposed to 5 in 3-D and 3 in 5+).
--
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\__ steve@arc.UUCP _________________________________________________________daf@vaxc.cc.monash.edu.au (04/18/91)
steve@Advansoft.COM (Steve Savitzky) writes: > pdbourke@ccu1.aukuni.ac.nz (Bourke) writes: > > I am interested in finding out what techniques people use for rendering > 4 dimesional objects, ie: techniques that help one visualise such beasts. > > At the moment I do things like look at 2D projections, generate contour > solids, and colour (yes thats how we spell it down here) depth cueing of > wireframe images. I do this for the 4D equivalents of the cube, tetrhedron, > octahedron, prism, and pyramid. I would like to extend it to a sphere and > the torus. > > So far I do random rotations of a cube (3-7 dimensions, though > anything above 5 can't even *begin* to be comprehended), with optional > stereopsis (split pair or red-blue). I also allow perspective to be > varied. I'm going to try putting stroke-font text on the faces, > spheres on the vertices, and making the wires into cylinders. > > You wouldn't happen to know what the other Platonic solids in 4-D are? > (I understand there are 7, as opposed to 5 in 3-D and 3 in 5+). Hi, You might be interested in joining our little mailing list, involving the discussion and creation of a 4-D visualization program called fourd. The list has some pretty heavy-duty members on it, such as Tom Banchoff, who did those great 4-D computer simulations on videotape. Mail fourd@castle.edinburgh.ac.uk and ask to be put on the list, although it's been a little quiet of late - don't know whether it is my mail feed or the group! cheers, Daf. PS. Anyone from the group out there - mail me if there have been any postings in the last few weeks or so! -- ------------------------------------------------------------------------------- Davyd Norris : "Strange people physicists... In my opinion Physics Dept. : those that aren't already dead are in some Monash University, : way very, very sick." - Douglas Adams, Vic, Australia. : "The Long Dark Tea-time Of The Soul" -------------------------------------------------------------------------------