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05.07.2007 at 01:31PM PDT, ID: 22557675
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6.6

Formula: Equi-distant points on a sphere

Asked by basiclife in 3D Graphics Software, Math & Science, Probability & Statistics

Tags: , ,

A math question (I'm trying to render something and my Uni days are getting a little hazy math-wise).

If I have a sphere and want "spikes" to be spaced equi-distantly over the surface, what formula can I use to determine the rotation of each spike through each of the 3 axes? technically, I can define it with 2 but image using 3 will actually make it easier.

Currently, I'm just splitting 2*PI by a constant (for both x/y rotation) and then looping through n eg:

spike X = 2*Pi/3 * n
spike Y = 2*Pi/3 * m

which A) overlaps spikes if even numbers are used, sometimes MANY times and b) gives a visually unappealing distribution

FYI These "Spikes" will (hopefully) be tentacles of an anemone or similar.

Any help greatly appreciated.Start Free Trial
[+][-]05.07.2007 at 01:47PM PDT, ID: 19045891

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[+][-]05.07.2007 at 01:55PM PDT, ID: 19045930

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Zones: 3D Graphics Software, Math & Science, Probability & Statistics
Tags: sphere, formula, points
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Solution Provided By: ozo
Participating Experts: 4
Solution Grade: A
 
 
[+][-]05.07.2007 at 01:56PM PDT, ID: 19045939

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[+][-]05.07.2007 at 02:02PM PDT, ID: 19045967

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[+][-]05.07.2007 at 02:15PM PDT, ID: 19046055

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[+][-]05.07.2007 at 02:16PM PDT, ID: 19046063

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[+][-]05.07.2007 at 02:35PM PDT, ID: 19046154

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[+][-]05.07.2007 at 02:38PM PDT, ID: 19046179

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[+][-]05.07.2007 at 04:09PM PDT, ID: 19046619

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[+][-]05.08.2007 at 03:41AM PDT, ID: 19048719

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[+][-]05.09.2007 at 02:01AM PDT, ID: 19055470

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[+][-]05.09.2007 at 02:42AM PDT, ID: 19055670

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