On 29 May 2010 09:41, Josh Gargus <josh at schwa.ca> wrote:
> It works fine for me (Geforce 8800GTS).
>
> Maybe Andreas needs updated drivers?  That's helped some people with similar problems:
> http://www.gamedev.net/community/forums/topic.asp?topic_id=568410
>
> Your GPU is way newer than in the following post, but maybe try power-of-two window dimensions:
> http://forums.amd.com/devforum/messageview.cfm?catid=392&threadid=115093&enterthread=y
>
Yes, its a long-standing problem with ATI drivers (i hope not with cards).
Henrik also reported that it unable to create MSAA FBO on his Radeopn HD4870.

I wonder if ATI cards/drivers ever support depth+stencil multisampling in FBOs.
Actually, i could use back buffer for rendering instead of FBO.


> Cheers,
> Josh
>
>
>
> On May 24, 2010, at 9:48 PM, Igor Stasenko wrote:
>
>> On 25 May 2010 07:22, Andreas Raab <andreas.raab at gmx.de> wrote:
>>> On 5/24/2010 8:32 PM, Igor Stasenko wrote:
>>>>
>>>> It either your card doesn't supports MSAA,
>>>> or driver don't likes the FBO configuration which i provided.
>>>
>>> I think the error code indicates a problem with the FBO configuration. For
>>> example, check out the restrictions on OpenGL ES for this stuff:
>>>
>>> http://www.khronos.org/opengles/sdk/doc/man/glCheckFramebufferStatus.xml
>>>
>>> It seems as if one needs to be very picky for getting the 'right'
>>> configuration on all platforms. Is there an enumeration by any chance that
>>> allows one to pick the proper (supported) configuration?
>>>
>> Yeah.. this is a black voodoo.
>> For instance, my video card rejects FBO with color+stencil only
>> (that's all what i need).
>> You may try various things in
>> NBGLFrameBuffer>>createMultisampleAttachments: numSamples
>> or in NBGLFrameBuffer>>createAttachments
>>
>>>> Check that
>>>>
>>>> NBWinContextState new pixelFormatInfo extensions includes:
>>>> #GL_EXT_packed_depth_stencil
>>>
>>> It's there.
>>>
>>>> Also, you could try running with MSAA turned off, go to
>>>> NBGLDisplay class>>pickImplementation
>>>>  and put comment around " ^ NBMSAAOffscreenDisplay  "
>>>
>>> That appears to work but the glyphs are drawn "improperly" (see screenshot).
>>> I'm not sure if that's the way they're intended to be rendered or if that's
>>> an artifact of running a different configuration.
>>>
>>
>> Yes, its improper. It looks like that when you don't have a stencil
>> buffer (or have it disabled).
>> Your screenshot also shows that you got my little shader running
>> properly which is used to render quad beziers.
>> And this is more important than stencil (i think it could be solved by
>> picking different FBO attachment formats).
>>
>>
>>> Cheers,
>>>  - Andreas
>>>
>>
>>
>> --
>> Best regards,
>> Igor Stasenko AKA sig.
>> <GL viewport.png>
>
>
>



-- 
Best regards,
Igor Stasenko AKA sig.