compiz - Jun 2007 - Direct and Indirect: Difference in rendering quality

Hi

Why is the quality of scaled textures/objects using --indirect-rendering
much worse than direct rendering? Also, vsync does not work with
indirect-rendering.

I am using an Nvidia Geforce go 7300, with 97.55 drivers.

Thanks,
Matt

On Tue, 2007-06-05 at 18:01 +0100, Matt Russell wrote:
> Hi
> 
> Why is the quality of scaled textures/objects using --indirect-rendering
> much worse than direct rendering? Also, vsync does not work with
> indirect-rendering.
Scaled texture quality problem might be caused by
GLX_EXT_framebuffer_object extension not being supported when using
indirect rendering. This means that mipmap filter can't be used with
pixmaps bound to textures.

GLX_SGI_video_sync extensions is used for vsync and that extension will
only work properly with direct rendering.

-David

On Tue, 2007-06-05 at 16:47 -0400, David Reveman wrote:
> On Tue, 2007-06-05 at 18:01 +0100, Matt Russell wrote:
> > Hi
> > 
> > Why is the quality of scaled textures/objects using
--indirect-rendering
> > much worse than direct rendering? Also, vsync does not work with
> > indirect-rendering.
> 
> Scaled texture quality problem might be caused by
> GLX_EXT_framebuffer_object extension not being supported when using
> indirect rendering. This means that mipmap filter can't be used with
> pixmaps bound to textures.
> 
> GLX_SGI_video_sync extensions is used for vsync and that extension
will
> only work properly with direct rendering.
> 
> -David
> 
That's a shame - performance for me is better using indirect rendering
(for most things at least), although I'm sure a few months ago compiz
ran better with direct rendering...

Matt