Make RenderTextureEmulation configurable

[Roderick Colenbrander]

On Mon, Oct 19, 2009 at 1:08 PM, Ove Kaaven <ovek at arcticnet.no> wrote:
> Roderick Colenbrander skrev:
>> On Mon, Oct 19, 2009 at 12:45 AM, Austin English
>> <austinenglish at gmail.com> wrote:
>>> On Sun, Oct 18, 2009 at 1:50 PM, James McKenzie
>>> <jjmckenzie51 at earthlink.net> wrote:
>>>> Ove Kaaven wrote:
>>>>> This makes it possible to work around bug 10080 without having to patch
>>>>> the source code.
>>>>>
>>>> This is a hack to allow a work around to function.  Much better to
>>>> actually fix the problem permanently.
>>> This is direct3d, there are already several similar registry
>>> workarounds for difficult problems.
>>>
>>
>> Well this issue is on the opengl side. Actually the game itself is
>> buggy and expects that a certain level of multisampling is around
>> (whiich is around on Windows). On Linux the Nvidia drivers don't offer
>> this level using 'GLXFBConfigs' but using a different type of
>> rendering they support this level and much higher. There is no easy
>> way to offer this level. I'm not sure if this hack is the way to
>> proceed though as it just disables the functionality the game needs.
>
> It doesn't disable anything for this game. It works 100% if you disable
> RenderTextureEmulation, presumably it falls back to a different
> rendering path that does its own "render-texture-emulation".
>

It disables one thing namely WGL_ARB_render_texture, so that's why I'm
suggesting a generic mechanism since there might be more cases where
hiding an extension works.

Roderick