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#1 Julian

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Posted 25 August 2006 - 05:21 PM

Last year, I posted in this thread about making a sphere with a uniform CP density. I've been able to improve upon the "volleyball" sphere by using beveled edges to eliminate the dead-end splines at the corners. Here's a more or less uniform sphere with 1,352 patches (i.e., 60 CPs around the equator):

[attachmentid=20008]

[attachmentid=20009]
This primitive can be used in applications such as cloth simulation, or it can be used in conjunction with Marcel's Conform plugin (US$15.00) to simplify the geometry of an irregularly-shaped polygon model such as an asteroid or small moon.

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  • UniformSphere.png

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#2 MMZ_TimeLord

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Posted 25 August 2006 - 05:34 PM

Wow... nicely done Julian... did you write a program to generate that? That would be a great addition to the 'primitives' plugin in A:M if it was. Then just have it so you can specify the density of patches. Really good job either way!
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#3 Julian

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Posted 25 August 2006 - 05:53 PM

Wow... nicely done Julian... did you write a program to generate that?

No, as I mentioned in the old thread, I'm still using the Spherize plugin from Emilio Le Roux.

Oh, I thought of something else this can be used for: optics -- minimizing distortion in the image when the model is used as a spherical lens or mirror. I haven't tried this myself, though. Conceivably, this type of sphere can also be used as the cornea of an eyeball, but the "basketball" topology would probably be simpler.
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#4 DanCBradbury

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Posted 26 August 2006 - 12:39 PM

wouldnt there be problems with the 3 point patches? When ever i work with them, the usually love doing their own thing, instead of forming with the patches around them.
Global Illumination is my middle... hmm, that doesn't work out very well.

#5 Gorf

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Posted 26 August 2006 - 12:45 PM

I would have thought a three-pointer surrounded by six four-pointers would be OK...?

#6 martin

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Posted 26 August 2006 - 12:51 PM

I would have thought a three-pointer surrounded by six four-pointers would be OK...?

People use 3-point patches all the time without problems. Just try them in your situation.
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#7 Julian

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Posted 11 October 2006 - 09:33 PM

I've just created three variations of this model with lower patch counts: 152, 296 and 488 patches. It looks as though Porcelain helps make the meshes smoother at these resolutions, so all of the spheres included here have Porcelain embedded. [attachmentid=21336] [attachmentid=21337]

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#8 Kamikaze

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Posted 11 October 2006 - 10:10 PM

Man! I almost fogot to send a Big THANK YOU after downloading your models, They are very handy and well thought out.............. Mike
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#9 Rodney

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Posted 24 February 2017 - 06:07 AM

Bump.

 

Needed to locate this.  :)


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