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3D Octopus (Help me)

Joined
Jan 22, 2005
Messages
15
Hi. I've just recently been entranced by the octopus and now I really admire their design. I'm a game art student, and what I'm doing here is trying to make and animate one in Maya (3D).... of course low-poly (PS2-XBox quality) not Motion Picture quality, because that's not what I'm trained in, nor what I'm going for.

Here's what I've roughed out so far (please note this is the models default tentacle setup. They probably look awkard, but will be moved into a more natural position once I add it's rig (skeleton). But for now they cannot be moved, only reshaped.

http://www.brokenmachine.net/prev_persp.gif
http://www.brokenmachine.net/prev_front.gif
http://www.brokenmachine.net/prev_side.gif

I'm hoping some of you can help me correct the flaws in my design.

Things I've noted (from photo references):

-The top of the mantle is flatter than the bottom, and overal appears bottom-heavy. I tried to portray that.

-The eyes may be too oval (vertically)?

-My version of the mantle may be too smooth. If it needs humps/lumps, please let me know.

-No siphon gills! I haven't modeled them yet, because I haven't yet found a clear photo of them.

If you have any crits please include links of photos to show me your point. THANKS!

I can't wait to texture this thing's eyes. Horizontal iris' are so cool. :mrgreen:
 

tonmo

Cthulhu
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May 30, 2000
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Wow, this is very cool. Thanks for sharing... looking forward to seeing where this thread goes... Let's dive in here, folks!
 

Steve O'Shea

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Nov 19, 2002
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Howdo Monkeywrench. Looks great, sincerely (I wish I could do what you have done), but there's a major problem with the constriction behind the eyes (where the mantle actually joins the head and funnel).

Don't worry about the text at the following link, but the pics should help (it will become immediately apparent). I'll post more soon.
Steve

Check out http://www.tonmo.com/community/index.php?threads/3519/
 
Joined
Jan 22, 2005
Messages
15
tonmo: Thanks!

Steve O'Shea: Thanks for the crit. From what I can see from your sketches, my eyes protrude too much in the back, and where the mantle joins the rest of the octopus is too narrow. So, octopuses only have 1 siphon gill? I thought they had two.. :confused:
 

Steve O'Shea

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Nov 19, 2002
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MonkeyW, no, your eyes don't protrude too much at all. The three sketches I directed you to were of Benthoctopus - a deep-sea thing. I've seen many a shallow-water octopus have eyes just as you depict; they can depress them considerably (they're not always 'out on stalks').

Just the single mid-ventral siphon (a few 'made in China' rubber octopus have two siphons). Within the mantle (the sac at the back) there are two gills. You needn't worry about octopus anatomy (gills/mantle cavity internal detail) - you'd go quite insane unless you had a dead specimen (fishmart) before you to make heads or tails out of words.

The mantle cavity is open to the seawater; you'll find a lip extending almost from one eye to the other on the ventral side - you could stick your finger in this cavity and run it freely from one eye to the next. I suggest you go get a specimen from a fish shop/fishmart to come to terms with it. It is, as you now can see, too narrow (where the mantle fuses with the head).
 
Joined
Jan 22, 2005
Messages
15
Thanks again. I'll look into all of that. Had no idea about the lip, that's interesting. I'll have to add that. Too bad I just read your second crit now. Oh well, here's today's update anyways. The head is generally wider now also.

http://www.brokenmachine.net/octopusWIP2c.jpg
http://www.brokenmachine.net/octopusWIP2b.jpg

And here's the reference I used for the tube gill things:

 

Steve O'Shea

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Nov 19, 2002
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Order of magnitude better! The funnel (aka siphon) is attached to the ventral surface of the head. I'm without pics (late at night, at home); more to come, but I'll need a couple of days. Surely someone else has pics that they can post also.
 
Joined
Jan 22, 2005
Messages
15
It's getting late here too. I'll work on it more in the morning. Thanks for the comments :smile:

Can octopi "orbit" their eyeballs? I've noticed the direction of their iris is almost always different from picture-to-picture.
 

CarlS

O. vulgaris
Registered
Joined
Aug 30, 2004
Messages
89
Nice model there MonkeyWrench. :cool2:
I'm looking forward to seeing some renders of it once it's been textured.
Are you going to be painting the texture maps or let Maya generate them?

Incidentally, you've come to the best and friendliest place around for ceph info. I found Tonmo while looking for reference pics for a model of architeuthis that's still in the works.

--Carl
 

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