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The Nouveau driver makes some holes in VBOs

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gouessej

The Nouveau driver makes some holes in VBOs

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I tested the Nouveau driver on my machines for some days. There are big holes in my models as you can see in my bug report:
https://bugs.mageia.org/show_bug.cgi?id=6738

It does not seem to be caused by polygon winding or face culling. Have you ever had such a bug with this open source driver?

The proprietary Nvidia driver displays some dots in the top of my screen, it is not fine...

Julien Gouesse | Personal blog | Website

Sven Gothel

Re: The Nouveau driver makes some holes in VBOs

Administrator

On 07/11/2012 02:46 PM, gouessej [via jogamp] wrote:
> I tested the Nouveau driver on my machines for some days. There are big holes
> in my models as you can see in my bug report:
> https://bugs.mageia.org/show_bug.cgi?id=6738
>
> It does not seem to be caused by polygon winding or face culling. Have you
> ever had such a bug with this open source driver?
>
> The proprietary Nvidia driver displays some dots in the top of my screen, it
> is not fine...

When it comes to Nouveau, we should ask whether the rendering bug
is rooted in the driver itself .. or JOGL.

If the test case doesn't show up w/ software rendering (Mesa)
or does also show up w/ a native test w/ the suspected driver,
it's a good hint it's Nouveau itself creating all the confusion.

~Sven

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Sven Gothel

Re: The Nouveau driver makes some holes in VBOs

Administrator

In reply to this post by gouessej

On 07/11/2012 05:59 PM, Sven Gothel wrote:

> On 07/11/2012 02:46 PM, gouessej [via jogamp] wrote:
>> I tested the Nouveau driver on my machines for some days. There are big holes
>> in my models as you can see in my bug report:
>> https://bugs.mageia.org/show_bug.cgi?id=6738
>>
>> It does not seem to be caused by polygon winding or face culling. Have you
>> ever had such a bug with this open source driver?
>>
>> The proprietary Nvidia driver displays some dots in the top of my screen, it
>> is not fine...
>
> When it comes to Nouveau, we should ask whether the rendering bug
> is rooted in the driver itself .. or JOGL.
>
> If the test case doesn't show up w/ software rendering (Mesa)
> or does also show up w/ a native test w/ the suspected driver,
> it's a good hint it's Nouveau itself creating all the confusion.

My apologies (I just woke up after hours of hacking :).
Yes, you know that and filed it on their site.
Sorry for spreading my confusion :)

~Sven

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gouessej

Re: The Nouveau driver makes some holes in VBOs

Administrator

You do your best. I'm tired and a bit ill. I don't reproduce this bug with the proprietary driver. I wonder if it has something to do with the size of VBOs.

Julien Gouesse | Personal blog | Website