CompuServe Thread

#Platonic Solids Meshes

16 messages in this thread
#104162From: Dave CoathupeMay 26, 1994 4:27 PM
Hi, Anybody out there got 3DS Mesh file(s) of the Platonic solids, please? Dodecahedron Icosahedron Or any of the Kepler-Poinsot polyhedra? Small Stellated Decahedron Great Dodecahedron Great Stellated Dodecahedron Great Icosahedron I need them for a project I am doing and thought there was no need to re-invent the wheel. Thanks in anticipation of a reply. Dave Coathupe
#104166From: Yost GroupMay 26, 1994 5:01 PM
You can create any of those — and many more using HEDRA2. It comes in Disk 7 of the new IPAS routines through Yost Group. There's a running demo in DL1. Look for HEDRA2.ZIP. – Jack
#104402From: Dave CoathupeMay 27, 1994 4:37 PM
Cheers Jack I will go looking right now — Dave
#104214From: John SchmidtMay 26, 1994 9:47 PM
I'm not sure if they're still here, but a few months ago, I put .3DS files of both a dodecahedron and icosahedron up here, (it was before HEDRA came out). I can't remember what the filenames were, but a search on some of the more obvious ones might turn up something.
#104404From: Dave CoathupeMay 27, 1994 4:37 PM
Thanks John I will do a more general search now, having had such a great response to the original request. — Dave
#104222From: John K. JordanMay 26, 1994 10:04 PM
Just for fun, I ran thru the HEDRA2 browser and found… Tetrahedron Octahedron Truncated Tetrahedron Cuboctahedron Truncated Octahedron Cube Cuboctahedron Truncated Cube Small Rhombicuboctahedron Great Rhombicuboctahedron Icosahedron Dodecahedron Icosidocecahedron Truncated Icosahedron Truncated Dodecahedron Small Rhombicosidodecahedron Great Rhombicosidodecahedron Great Icosahedron Great Stellated Dodecahedron Great Dodecahedron Small Stellated Dodecahedron .. as well as some 10 unnammed hedra. In addition to picking the above, you can play with parameters to produce variations until your brain is tesselated. As Jack mentioned, all this and more on the IPAS disk 7 – highly recommended.
#104231From: M. G. BATCHELORMay 26, 1994 11:00 PM
Displace is pretty fun with the RT shading too, huh ? I've dynamically created a number of objects that just couldn't be constructed in other ways (or you wouldn't want to, let's put it that way). Using specially-designed bitmap "tools" , you can really carve/pull away on a hi-res mesh with good results.
#104247From: John K. JordanMay 26, 1994 11:46 PM
>>DISPLACE… Some amazing posibilities with this one. I made some fantastic morphing monstrosities with a random spherical map "pusher". So many posibilities, so little time… BTW, did you see the article on CyberMesh, a Photoshop plug-in that does bitmap displacement modeling (NewMedia, June, pg 89)? They report an interesting hole-cutting option which allows black pixels to cut holes in the mesh. They said the renderer was "exceptionally fast", but noted that it was "fun to watch the shaded preview build from the back to the front". <g> Everyone's getting into the act, or trying to!
#104265From: M. G. BATCHELORMay 27, 1994 1:11 AM
<< So many posibilities, so little time… >> Ain't it the truth, especially the last part. I don't think I saw that article, but then again, I can't remember what I did yesterday <g>. WATCHING things render is definitely not my idea of fun <g>….wake me up when it's all real-time !
#104350From: Yost GroupMay 27, 1994 10:46 AM
I can't believe you actually ran through that list and typed all those names. Especially the Great Rhomibicii… Great Rhomo… Great Rambo… Well, you know the one.
#104459From: John K. JordanMay 27, 1994 8:55 PM
Yeah, the Great Romulanwarshiphedron. Never one to embrace Communication Without Comprehension, I am now forced to drag out the books and try to understand all this. I've got a feeling that this has something to do with the meaning of life.
#104559From: Yost GroupMay 28, 1994 11:50 AM
Hey, no need for books. Dan explains it all in the docs. (I asked him for that section because I had no idea what I was writing about.)
#104246From: Yost GroupMay 26, 1994 11:42 PM
In addition to what everyone else said, there's a fully-functional (but non-interactive) version of Hedra1 up in DL1 somewhere. But Hedra2 is sooo much more fun!
#104249From: Gary K. SimMay 26, 1994 11:49 PM
Around Christmas an IPAS routine called HEDRA.PXP was uploaded to the forum by Daniel Silva as a Christmas gift to us all. Hopefully it is still available (and it's free, unlike HEDRA2). I only just got around to playing with it this week, and it builds them things quite well, tho' not as well as HEDRA2 does, since you can't see your object until you click on OK in the dialogue box. If you can't find it drop me a byte and I'll send it to you (it's freely distributable, but not to be resold).
#104327From: Jonas Ruikis [ADESK]May 27, 1994 9:21 AM
<< hedra.zip >> Can be found in the Ipas Usage section of the lib.
#104403From: Dave CoathupeMay 27, 1994 4:37 PM
Cheers Gary I am now going to do a comprehensive search which will hopefully turn up with goodies.