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Amiga Plus 1995 #5 & #6
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000527_owner-lightwave-l _Sun Mar 26 20:54:43 1995.msg
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Date: Sat, 25 Mar 1995 09:19:12 -0800 (PST)
From: Jonathan Gerber <jlgerber@sdcc13.ucsd.edu>
Reply-To: Jonathan Gerber <jlgerber@sdcc13.ucsd.edu>
Subject: Splines
To: lightwave-l@netcom.com
In-Reply-To: <9502260717.AA17994@rhythm.com>
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On Sat, 25 Feb 1995 neil richmond wrote:
> Hi Alan.
>
> What I have to do, currently, in order to do what I want is create a hierarchy
> of null objects and set keyframes the way I want. This works, but it is a bit
> of a kludge. The reason is that when youset a keyframe for a particular chann-
> nel in LW like x translation, it also sets a keyframe for every other channel
> in the object at the same frame. Now suppose you want to do some complex xz
> plane motion of an object, but you just want a straight linear move in y axis.
> Now, you either have to make a null object and hierarchically seperate the
> different channels or you have to hand tweak every keyframe for the channel
> that you want linear. Also, suppose you want to rearrange the channel order
> in an object because you want scaling first, the translations, then rotations.
> Currently, the only way to do this is to create a null object hierarchy. I wThis
> works okay if you are dealing with a small number of objects, but if you are
> trying to do character animation, you could have many objects and thus many,
> many null objects to seperate the channels out. With objects that can have
> individually keyframed channels or objects where you can order the channels
> any way you want this becomes much more practical. Just trying to accomplish
> overlapping action or followthrough is much harder now. Later.
>
> neil
>
> " Give a skeptic an inch and he'll measure it. "
> Neil F. Richmond neil@rhythm.com
> Rhythm & Hues Inc.
>
>
I'd have to second this. It would seem that lightwave uses one spline to
represent the movement of an object. What would be more usefull would be
to represent each axis and velocity as an independant spline, like
electric image seems to do. Also, it would be nice to be able to edit a
path in layout by dragging a keyframe point. As it stands now, you can
view the path, but not edit it.
on a completely different note, the other day I rerendered a
scene under 3.5 which I had created in 3.1 and found that a certain
object (blinds, if you must know) rendered with dark spots all over it.
The only explaination I have is that it was 80% diffuse, and that 3.5
doesn't seem to handle it well. Also, anyone else notice that 3.5 doesnt
use the "first frame" input in the scenes screen to constrain the
animation bar?(ie whaen you use the bar, the animation goes from 0 to the
last frame)
jonathan gerber
UCSDTV