Subject:
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Re: Renderer Questions
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Newsgroups:
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lugnet.cad
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Date:
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Wed, 27 Oct 2004 18:04:45 GMT
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Viewed:
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1179 times
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In lugnet.cad, Kevin L. Clague wrote:
> In lugnet.cad, Don Heyse wrote:
> > In lugnet.cad, Steve Bliss wrote:
> > > In lugnet.cad, Don Heyse wrote:
> > > > Yuk! I guess it makes sense to add support for ROTSTEP instead.
> > >
> > > For you it does.
> >
> > Actually I'm no longer sure about that. If ROTSTEP is supported
> > internally in LPUB, and LPUB supports ldglite as an alternative
> > renderer, than supporting ROTSTEP in ldglite might make that
> > more difficult. Kevin?
> >
> > I suppose I could make ROTSTEP support optional so folks without
> > access to LPUB can still use it.
>
> Beware the slippery slope: buffer exchange, ghost, other issues.....
Heh, when I finally realized ROTSTEP was more of a runtime command
than an LDLITE parse time command, and looked at the right file,
guess what I found. Yeah, that's right: BUFEXCHG, GHOST, etc. test
code. I think I might even be able to use some of it.
Looks like ROTSTEP is just a mouse spin without the mouse. Of
course now that I looked at the mouse spin code I have to wonder why
ROTSTEP uses three rotations (with the confusing order dependency
problem) instead of one rotation around a 3D vector. Oh well,
I can't tell what ROTSTEP 30 45 90 means based on the specs,
but at least there's sample code telling me how to implement it.
Have fun,
Don
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