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Subject: Universal 3D Primitives?

DBM opened this issue on Mar 15, 2004 ยท 2 posts
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DBM ( ) posted Mon, 15 March 2004 at 11:35 PM ยท edited Wed, 14 August 2024 at 2:53 PM

How would you go about creating a 'Universal Primitive', a 3D primitive that could morph into ANY other 3D primitive?

This link is to a thread in the modelling forum - it will show you how far I've gotten in my quest (MO-72 Project)...

http://www.renderosity.com/messages.ez?ForumID=12402&Form.ShowMessage=1702723&Reply=1707923#21

This other link shows a bathtub made from a 'morphed' cylinder - an earlier attempt using a lower-poly count model...

http://www.renderosity.com/messages.ez?ForumID=12402&Form.ShowMessage=1702723&Reply=1707923#20

Thoughts are welcome (I know I'd have to increase the poly count to get decent Icosahedrons, Dodecahedrons, etc)...

EnglishBob ( ) posted Tue, 16 March 2004 at 6:09 AM

You're completely mad. But I like that. :D But seriously... You've identified one problem in your linked post there; what the topologists call 'genus', and the rest of us call 'how many holes a thing has in it'. :-) Torii and teapots (the teapot is a primitive, isn't it?) have a genus of 1, spheres, cubes, stellated icosahedrons etc. have a genus of 0. Probably impossible to do properly using only morphs. Search for 'incredible cube' in freestuff to find Stephen Ray's adventures in morphing.

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