[GEM-dev] sphere

[James Tittle II]

On Mar 29, 2004, at 1:42 AM, chris clepper wrote:

> I was playing around with some of Cyrille's pmpd patches and noticed 
> that he commented on several of them needing lots of CPU to run.  I 
> quickly figured out that it was the sphere object that ate most of the 
> CPU, and I had already made a note to fix this after Johannes rewrote 
> the object.  The big problem is that sphere calculates each and every 
> vertex each and every pass even though most of the time the geometry 
> is static.  The quick fix I just committed to CVS only calculates the 
> geometry when a parameter changes (slices, drawing style, etc).  The 
> result is at least a 3X improvement in performance, and most of the 
> pmpd stuff runs ok now on my Powerbook.

...good job chris!  I was just playing with the pmpd examples and 
noticing the slowness, but I didn't look close...then I tried your fix, 
and it runs much better!

jamie