PDA

View Full Version : Modeling: Morphing a square to a circle


eljefeloco
10-10-2008, 12:30 AM
Finally, a resource for LW help that is active!

I'm modeling a bottle where the top of the bottle changes from a rounded rectangle shape to a circle, like the bottle in this image:

http://www.pantone.com/images/pages/19580/suc_odwalla_dk.gif

I have the rounded rectangle shape where I need it to be, but can't figure out a good way to morph it into a circle. I attempted this by importing a series of shapes in Illustrator (blending from the rounded rect to a circle) and using the BGconform tool. This gets me close to what I'm trying to do, but it deforms my geometry since the # of points on each shape is different.

Anyone have any ideas on how I can do this? Either a tool that does it or a way to add a uniform # of points to my imported shapes?

Meloncov
10-11-2008, 04:59 AM
I'd just use a lathe to create a circular form of the bottle, and use the stretch tool to pull in the points to a square on the appropriate portions of the bottle.

Meloncov
10-11-2008, 05:09 AM
Okay, I tested what I suggested, and was able to create the attached in about ten minutes.

http://i446.photobucket.com/albums/qq189/Meloncov/bottle.jpg

proton
10-12-2008, 12:11 AM
Meloncov (http://forums.cgsociety.org/member.php?u=296453)'s suggestion is a smart one. If polyflow isnt any issue then you could use teh Create SKin or Morph Polygons features in Modeler.

Create Skin:
ftp://ftp.newtek.com/multimedia/movies/w3dw/createskin.mov

Morph Polys:
ftp://ftp.newtek.com/multimedia/movies/w3dw/mpoly.mov

eljefeloco
10-12-2008, 04:43 AM
Great, thanks!

I was having trouble getting the shape as precise as I needed it with stretching/pulling points, but the morph poly tool worked really well. Thanks again for your help.

CGTalk Moderation
10-12-2008, 04:43 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.