#strange Birdwalk mappin
9 messages in this thread
Hi to all!
One of our developer has find out a very very strange behavor of 3DS. Load
your Birdwalk.3DS file, render it (keep the texture of the body in your mind)
and then aquire the mapping coords from the body object. Then re-apply the
mapping coords to the body and render the image again…
As you might see the texture is now rotated. But why?????????
If you get the mapping coords from an object and then assing the same mapping
coords to the same object you should have the same texture orientation than
before. But that isn`t so. Any ideas??
Michael
Check out the note marked "Important" on page 7-145. It's been a long time
since I made that bird — and I'm not even sure we even had the Acquire
function at the time. At any rate, I'm positive that the bird has been move
around in 3D space since its original mapping coordinates were applied. No way
you'd be able to acquire them at their original location.
– Jack
Thank you very much Jack. I thought it was something like that but I was really
not sure…
Michael
The mapping coords location does not translate w/ the object. Okay, I didn't
say that very well. For example, in center of the top viewport, make a cube.
Set up some type of mapping coord for it, and apply. Now move the mapping icon
to the lower left corner of the viewport (but don't reapply it — we're just
moving it so that you can see it go back). Now, move the cube to upper right
corner. Now, use Surface/Mapping/Acquire. You'll see that the mapping icon is
back near the center of the viewport, where the cube originally was.
So, if the bird-body was moved after the mapping coords were applied, and you
re-acquire and apply them, you'd get a different effect, as you've seen.
Dave
Thanks Dave. It`s very important to know for my next mapping coords seesion…
<g>.
Michael
<<mapping coords>>
3DS aquires the mapping coordinates in the exact orientation they were in when
applied to the object. If you rotate or move the object, acquire will still
bring back the original location.
– Dave
Thanks David. It`s a little bit like absolute right (mapping coords) and
relative right (mapping coords) <bg>.
Michael
>> If you get the mapping coords from an object and then assing the same
>> mapping coords to the same object you should have the same texture
>> orientation than before. But that isn`t so. Any ideas??
Michael,
This is not exactly how it works. When you ACQUIRE mapping coordinates from
an object you will get the mappin icon _as it was when the mapping was
applied_. The mapping icon does not move, scale, or rotate with the moving,
scaling and rotating of the object.
Ralph
Thanks Ralph.
BTW: Are you german? Your name sounds like a german name (but my name is a
french name and I`m a german, little bit confusing).
Michael