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How to create shapes with math formulas?

Started by MARS_999 Mar 2, 2009 at 10:39 AM 9 replies 3.8k views

Original Post

Mar 2, 2009 at 10:39 AM

I am looking for a site that shows or covers how one create various shape object with a mathematical formula, or a good book would be better. I want to make a lib that has all these shapes to render without having to make them each time, or the need for a mesh loader... e.g. math needed to create a sphere, Pyramid, disc, Icosahedron, Cone, ect. THanks [Edited by - MARS_999 on March 2, 2009 10:58:11 AM]

swiftcoder

Mar 2, 2009 at 10:56 AM

Quote:
Original post by MARS_999
I am looking for a site that shows or covers how one create various shape object with a mathematical formula, or a good book would be better. I want to make a lib that has all these shapes to render without having to make them each time, or the need for a mesh loader...

e.g.
math needed to create a sphere, Pyramid, disc, Icosahedron, Cone, ect.

http://mathworld.wolfram.com has all the formulas for those shapes, but in general, all the shapes you have listed are trivial to generate through either basic trigonometry or subdivision. I doubt that you will find a book for shapes as fundamental as that.

Black Knight

Mar 2, 2009 at 11:02 AM

There is a book called "Algorithmic Beauty of Plants"
linky

It contains formulas to generate tree like shapes by using small patterns,could be useful.

MARS_999

Mar 2, 2009 at 11:05 AM

Thanks to both of you, that info is the kind of material I am looking for.

noisecrime

Mar 2, 2009 at 11:20 AM

I've always found Paul Bourke's site to be a wealth of information

MARS_999

Mar 2, 2009 at 11:28 AM

Wow thanks Noisecrime that is a very very nice site.

Zakwayda

Mar 2, 2009 at 11:53 AM

This article is a good resource as well.

zedz

Mar 2, 2009 at 12:17 PM

see a recent post I made in the math + physics forum

phresnel

Mar 2, 2009 at 12:33 PM

Quote:
Original post by zedz
see a recent post I made in the math + physics forum

Any link? Recent is pretty relative.

zedz

Mar 2, 2009 at 12:48 PM

sorry by post I meant topic I started
heres the info anyways
http://www.gamedev.net/community/forums/topic.asp?topic_id=524548

http://www.2dcurves.com/
http://local.wasp.uwa.edu.au/~pbourke/geometry/ //<- the best but only a few 2d shapes are here
http://mathworld.wolfram.com/topics/Geometry.html
+ of course wikipedia

MARS_999

Mar 2, 2009 at 1:16 PM

Thanks jyk, that is a nice doc.

zedz, I have some of those sites already, but I will checkout the first one, thanks.

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