#Comparisons Needed
04-Nov-94 23:24:04
Sb: #133413-#Comparisons Needed
Fm: Roger Danielsen 70323,3034
To: Jonas Ruikis [ADESK] 73172,1351
No, it was just my system. I finally tracked it down last night. Now
I'm at least back to where I was a week ago. I have been able to
render my regular stuff at night, though. I know one could say that
this was my fault, but in my own defense, I'd like to say I had an
awful lot of help. About a week ago, I told you I was having problems
with the relationship between the 3 dummy boxes and the ability of my
skeleton to walk.
So I took your advice and changed the position and orientation
tolerances to what seemed to be a reasonable tweak considering the
range of 0 to 9,999,999. Now I never saved anything I did to disk, so
from my 3D Studio experience, I didn't think I was getting myself in
too deep, and messing up the example files.
Boy, was I wrong. Out of frustration, I sat here watching the
interactive screen and moving my mouse, and watching nothing happen
but screen flash. When a thought occurred to me that maybe the
computer couldn't keep up with what I was asking it to do. Back to
the manual, and I was able to find a somewhat obscure statement, in
relation to its importance. "A lower value causes the orientation of
the end effector to be more accurate, but may require more time to
calculate. If you lower the tolerance value, you may need to raise
the number of maximum iterations required."
That's when it occurred to me that this thing (IK) is saving to disk,
and no matter what you do, loading animation after animation, or even
project files, it has no effect. Every file is going to be screwed
up, unless you have the forethought or are aware enough to go in and
doublecheck constantly.
Now maybe I'm spoiled from 3 generations of excellent documentation
(although I did say something to Jack about the indexing in R1).
Later editions were of the highest quality. I would like to encourage
those who did the IK documentation to perhaps redouble their efforts
and perhaps come out with an interim edition. Considering the
complexity of the topic, it seems as though a person of average
intelligence could have more than just a few problems with these
docs. Thank you for your effort.
Earlier on, you mentioned that for a walking human, you would use
paths. Are you creating your paths in 3D Studio or in Autocad? What
I'm trying to accomplish is taking a Viewpoint skeleton, having him
walk over, open the door, and get into a automobile. I've been
working a lot with paths, without much success. You also mentioned
that you wouldn't use the interactive screen to do keyframing.
Is the only way to accomplish this with this version of IK to become
a scripting guru? I'm really hoping I can work with this program
interactively. I mean all the work since the Xerox lab days has been
about trying to make the computer understand what the human's trying
to tell it. Venturing off into programming kind of ventures off into
a different mindset, don't you think?