intel driver

[Luca Romagnoli]

Thank you Stephane,
i'm going to use the EXT_framebuffer_object
Luca

Stephane Marchesin ha scritto:
> On Fri, Jul 4, 2008 at 1:11 PM, Luca Romagnoli <luca at geode3d.com> wrote:
>   
>> Hi,
>> i have a motherboard mounting an intel G33. I using intel driver 2.2.1
>> on ubuntu 8.04 and i have a problem with opengl procedural texture.
>>
>> this is the scenario: i have 2 windows, one is an opengl window and the
>> other is a generic window(for instance a terminal window).
>> during the pipe line i render and i store the result in a procedural
>> texture, so i'll use this texture to the final render.
>>
>> the problem is:
>> if the generic window is over the portion of the opengl window that i
>> use to render the procedural texture so the result will be wrong.
>> it'seams the render is locked on the part of the opengl window
>> overlapped by the other window, so the procedural texture never change.
>> is it possible?
>>
>> note if i lunch the same application on a pc (ubuntu 8.04) with a nvdia
>> the problem don't happen.
>> have you got some idea?
>>     
>
> This is not a bug, you should read the opengl/glx spec. The contents
> of hidden opengl windows is not guaranteed to be correct. Look at
> pbuffers/fbos instead to fix it.
>
> Stephane
> _______________________________________________
> xorg mailing list
> xorg at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/xorg
>
>