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 CAD / Development / Macintosh / 800
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Subject: 
Re: Need (working) program to generate instruction pictures
Newsgroups: 
lugnet.cad.dev.mac
Date: 
Mon, 5 Mar 2007 14:28:43 GMT
Viewed: 
5093 times
  
In lugnet.cad.dev.mac, Jim DeVona wrote:
In lugnet.cad.dev.mac, Don Heyse wrote:

You can try to force double buffering in ldglite with the -n2 or -n4
command line switches, but this may interact badly with some of the
other unusual obsolete old-school performance tricks I used (especially in
ledit mode).

Good call. I ran it with -n4, and that makes things visible during rotation. The
status bar and final appearance of the model (after you stop rotating, if your
rotation style is different) don't get drawn until obscured by a menu, etc., so
presumably the -n options don't apply to them. In any case this backs up your
explanation.

I took another screenshot to illustrate how the whole model is rendered while
spinning but the other stuff needs to be "tickled" - the toolbar and part of the
cockpit were only revealed after showing the Edit menu -
http://www.brickshelf.com/gallery/anoved/Examples/ldglite-mactel-n4-editmenurepaint.jpg

Yeah, I think you're seeing at least two ATI driver bugs.  The transparent
cockpit is drawn with a stipple function that's buggy in many ATI drivers.
And the ledit text (toolbar?) is still drawn in the front buffer.  The
latest source code in CVS is patched for the toolbar problem on some
radeon cards because it was driving me nuts on one PC.  I made it check
for "RADEON 7000" (my card) but I probably should have patched it for any
old "RADEON".

If you had infinite free time you could fetch the code in CVS and
compile it.  But why bother, it's just too old.



Message is in Reply To:
  Re: Need (working) program to generate instruction pictures
 
(...) Good call. I ran it with -n4, and that makes things visible during rotation. The status bar and final appearance of the model (after you stop rotating, if your rotation style is different) don't get drawn until obscured by a menu, etc., so (...) (17 years ago, 4-Mar-07, to lugnet.cad.dev.mac)

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