[Mesa-dev] [PATCH 00/37] Geometry shader support in Sandy Bridge

[Mike Lothian]

On 21 August 2014 00:58, Matt Turner <mattst88 at gmail.com> wrote:
> On Wed, Aug 20, 2014 at 4:49 PM, Mike Lothian <mike at fireburn.co.uk> wrote:
>> On 21 August 2014 00:41, Matt Turner <mattst88 at gmail.com> wrote:
>>> On Wed, Aug 20, 2014 at 4:30 PM, Mike Lothian <mike at fireburn.co.uk> wrote:
>>>> Hi I tested the branch - glxinfo reports GL 3.2 and GLSL 1.50 however
>>>> when I run Heaven 4 I get a blank screen when rendering and the
>>>> following messages:
>>>>
>>>> GLFrameBuffer::enable(): incomplete attachment
>>>> GLFrameBuffer::enable(): incomplete attachment
>>>> GLFrameBuffer::enable(): incomplete attachment
>>>> GLFrameBuffer::enable(): incomplete attachment
>>>> OpenGL error: invalid framebuffer operation
>>>>
>>>> This only happens when at 8xAA - is the demo mis detecting the AA
>>>> abilities of Sandybridge?
>>>
>>> Sounds like it. Sandybridge can only do 4x MSAA.
>
> glxinfo -l | grep GL_MAX_SAMPLES
>
> will tell you.

It does indeed report 4 - must be a general bug of Unigine then