Subject:
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Re: Mac Brick CAD and the Imerial Star Destroyer
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Newsgroups:
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lugnet.cad.dev.mac
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Date:
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Fri, 21 May 2004 16:58:30 GMT
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Viewed:
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6458 times
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In lugnet.cad.dev.mac, Don Heyse wrote:
> Yeah, watch out for that software rendering on the Mac. It sneeks up on
> you. I know it can switch you over while your program is running, but I
> don't know what causes it to happen other than resizing a window. You
> might want to query it about the driver as you build up your display lists
> to see if it switches you over to software rendering at some point.
Actually, the same thing can happen in Windows if you resize a window too big
(say 1600x1200) on an older video card. However, I'm not sure you can tell that
it has switched to software mode on Windows, because as far as I know it is
still being rendered by the video card's OpenGL driver. I can't see how it
could possibly switch drivers mid-stream because different drivers support
different extensions. That would mean that an extension that you had been told
was present could disappear.
--Travis
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Message has 1 Reply:
 | | Re: Mac Brick CAD and the Imerial Star Destroyer
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| (...) I think this is what Don is refering to. Using Don's ldgliteargs to 800x537 on my aging 8 MB VRAM machine so ldglite would launch using the ATi renderer. GL_VENDOR ='ATI Technologies Inc.' GL_RENDERER ='ATi Rage 128 Pro OpenGL Engine' (...) (22 years ago, 25-May-04, to lugnet.cad.dev.mac)
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Message is in Reply To:
| | Re: Mac Brick CAD and the Imerial Star Destroyer
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| (...) Yeah, watch out for that software rendering on the Mac. It sneeks up on you. I know it can switch you over while your program is running, but I don't know what causes it to happen other than resizing a window. You might want to query it about (...) (22 years ago, 21-May-04, to lugnet.cad.dev.mac)
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