On Sat, 23 Feb 2002 14:11:59 -0500,
David Megginson <[EMAIL PROTECTED]> wrote in message
<[EMAIL PROTECTED]>:
> I'm having a mental block right now, and would appreciate help on a
> simple question. How do I rotate an object (in raw OpenGL or
> preferable, plib/ssg) around a point other than t
Christian Mayer writes:
> you can put those 3 operations into one 4x4 matrix if you want. That
> looks more intuitve but is harder to understand afterwards.
Thanks -- I did that as well, using the sg matrix functions from plib.
What I did has been in the CVS since yesterday afternoon, but no o
David Megginson wrote:
>
> Curtis L. Olson writes:
>
> > It's been a while, but as I recall you probably want translate the
> > object to the origin (or have it start out there) do whatever
> > combination of rotations to orient it properly, and then translate it
> > to it's final location.
Curtis L. Olson writes:
> It's been a while, but as I recall you probably want translate the
> object to the origin (or have it start out there) do whatever
> combination of rotations to orient it properly, and then translate it
> to it's final location.
Yes, that's what I ended up doing. I
David Megginson writes:
> I'm having a mental block right now, and would appreciate help on a
> simple question. How do I rotate an object (in raw OpenGL or
> preferable, plib/ssg) around a point other than the origin? Do I have
> to transform the object to the origin, rotate it, then transform
I'm having a mental block right now, and would appreciate help on a
simple question. How do I rotate an object (in raw OpenGL or
preferable, plib/ssg) around a point other than the origin? Do I have
to transform the object to the origin, rotate it, then transform back
again?
Thanks,
David
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