--- Leif Delgass <[EMAIL PROTECTED]> wrote:
> On Sun, 9 Jun 2002, Michael wrote:
> 
> > On Sun, Jun 09, 2002 at 12:11:58AM -0700, Mike Mestnik wrote:
> > > --- Jacek Pop?awski <[EMAIL PROTECTED]> wrote:
> > > > On Fri, Jun 07, 2002 at 09:42:22AM -0400, Al Tobey wrote:
> > > > > I don't forsee a big problem performance wise if the textures are
> mangled
> > > > > during the loading stage, but I'm still learning ...
> > > > 
> > > > Please keep in mind that some applications update texture every frame.
> > > > 
> > > 
> > > GASP!
> > > 
> > > Are there any cards or drivers that actually upload textures every frame?
> > 
> > I think the key word was applications, not drivers/cards.
> > 
> > It's how rtcw does the in game videos, unless I'm mistaken.
> 
> Do applications use texture sub-images for video?  AFAIK, the DRI drivers 
> all swap out and upload the entire texture image for glTexSubImage[123]D, 
> where it could be optimized to only upload the changed portion of the 
> texture.
> 
> -- 
> Leif Delgass 
> http://www.retinalburn.net
> 

I was thinking the same thing, however Michael pointed ought that if the app
realy wanted this it could use extra polygons correctly textured to do the same
thing.  It's true that the card could have some feature that the app might
benefit from though, like accepting diffs.

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