[Mesa-dev] ARB_occlusion_query2

Marek Olšák maraeo at gmail.com
Sat Sep 11 14:28:12 PDT 2010

It's actually a nice optimization opportunity. Some hardware might stop
rendering immediately after the first sample passes the depth test and all
following draw operations can then be safely ignored, provided there are no
writes to any buffer. Particularly software rasterizers might benefit from

The R300 TODO is just a wishlist of things the hardware/driver could do.


On Sat, Sep 11, 2010 at 10:48 PM, Dave Airlie <airlied at gmail.com> wrote:

> Just noticed this on a list of things for r300 todo, seems kinda
> pointless but what do I know.
> I wonder if there is hw that can do OQ2 and can't do OQ, for which it
> might make sense.
> Dave.
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