[Bf-committers] Back Buffer Issues

[Alexander Ewering]

On Tue, 7 Dec 2004, Ton Roosendaal wrote:

> Hi,
>
> It's already there;
> http://www.blender3d.org/cms/Linux.301.0.html#1961
>
> Juan Julio; is it in your FAQ? 
> http://www.freewebs.com/apollux/Blender-Linux-FAQ.sxw
> Yann; can you make sure that's being included in releases? It's not in cvs 
> you know...
>
> Thanks!
>
> On a development note; in theory Blender's buffering system could work with 
> swap-exchange, as being used for some Suns and most SGIs. That's a different 
> method as the "flipping" NVidia provides however, they created a method that 
> automatically copies the minimim of changes to the display buffer, for games.
>
> It's the reason we had to hack Blender with is_a_really_crappy_nvidia_card() 
> in mywindow.c.
> Alexander; it could be interesting to check if NVidia "flip" works with this 
> hack in Linux too, just remove the ifdef WINDOWS there.

I tried this, and no, it doesn't work then, either.

> I don't know if we can somehow retrieve the used swapbuffering method from a 
> driver...

Well, at least I now know the XF86Config option to disable flipping and
enable copying:

     Option  "NoFlip" "on"



| alexander ewering              instinctive mediaworks
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