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Re: How do I tile a sphere ?

by "jbwest" <jbwest@[EMAIL PROTECTED] > Jun 2, 2008 at 07:17 PM

"fungus" <openglMYSOCKS@[EMAIL PROTECTED]
> wrote in message 
news:929869a7-7904-4672-ad3e-b474cccd5f39@[EMAIL PROTECTED]
> On Jun 2, 3:24 am, "jbwest" <jbw...@[EMAIL PROTECTED]
> wrote:
>>
>> In fact, you don't need a hugely big initial texture. You don't need
one 
>> any
>> bigger than twice the screen resolution.
>
> 2048x2048 is the most you can expect from the average
> graphics card.
>
> "Twice the screen resolution" is optimistic on many
> machines.
>
> --
> <\___/>
> / O O \
> \_____/  FTB.     Remove my socks for email address.

1024 (the vertical extent of an unclipped sphere) isn't much less than 
vertical screen res on a typical rig -- and that would have to be a 
full-screen window. So 2kx2k is pretty close, given that you only have the

full pixel size at the meridian, and everything else on a sphere is
sampled 
down anyway.

-jbw
 




 7 Posts in Topic:
How do I tile a sphere ?
"Lynton Towler"  2008-06-01 13:29:38 
Re: How do I tile a sphere ?
"jbwest" <jb  2008-06-01 18:24:39 
Re: How do I tile a sphere ?
fungus <openglMYSOCKS@  2008-06-02 05:07:29 
Re: How do I tile a sphere ?
"jbwest" <jb  2008-06-02 19:17:46 
Re: How do I tile a sphere ?
"Lynton Towler"  2008-06-03 18:42:33 
Re: How do I tile a sphere ?
Chris Forone <4one@[EM  2008-06-04 07:48:29 
Re: How do I tile a sphere ?
"Lynton Towler"  2008-06-07 08:29:00 

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