> I assume you mean the newest file. If a software fallback for a hardware
> operation is disabled, does that mean that the operation can not be done
> at all? (I have no clue what a double side stencil is.)

Double sided stencil means that you can select different stencil buffer
operations depending on whether a rendered polygon is front-facing or
back-facing. This can be used to increase speed of stencil shadow
volumes, which are used for shadows in games like Doom 3.

> 
> 
>> You can get some extra boost by sticking:
>> Option "ColorTiling" "true"
>> into xorg.conf
>>  
>>
> Sounds good that the driver can be made faster, but why would I have to
> turn it on in a configuration file?

Some options cause problems for some users. A typical example are AGP
fast writes: While they can increase speed they will lead to crashes
with some graphics chip revision / mainboard chipset / BIOS
combinations. Tiled rendering was added to the driver later and is not
yet as well-tested as the rest.

Philipp



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