[osg-users] [Fwd: Mesa and gldirect]

J.P. Delport jpdelport at csir.co.za
Tue Mar 24 07:00:42 PDT 2009


Cory Riddell wrote:
> J.P. Delport wrote:
>> What always bothers me is the whole multiple window, multiple context
>> thing. Correct me if I'm wrong, but I've always thought DirectX caters
>> more for the single fullscreen 3D window case (games?). Is this not
>> why CAD apps favour OpenGL? If DX can't do multiple windows/contexts
>> nicely the wrapper won't be able to fix this. For specific cases the
>> wrapper might be OK.
> I don't believe multiple windows/contexts is a problem anymore (was it
> ever?).

Must be my built-in OpenGL bias then :).

> I think CAD apps traditionally favored OpenGL simply because of their
> history. Way back (when SGI was relevant), the only place to get decent
> graphics performance was on very expensive Unix workstations. These
> days, the best performing graphics cards are for Windows and they are
> relatively inexpensive. 

I do remember a time (when PC workstations appeared) when cards touted 
OpenGL support on their boxes specifically for CAD apps.

> I think that's why some CAD packages are
> dropping OpenGL support (Autodesk- I'm looking at you).


> Cory
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