
The developers of Soul Calibur (including Soul Calibur IV and the new PSP title Soul Calibur Broken Destiny) have delved into the 3D modelling techniques used in the game, but most interestingly they have explained just how Soul Calibur succeeds to effectively in recreating the motion of breasts during battle.
Here is the most interesting part, a detailed discussion of oppai physics utilising Ivy as an example:
Here is an example of breast movement, or what might be called breast jiggle. This characteristic is peculiar to female characters. In both Soul Calibur IV and Soul Calibur Broken Destiny, everything, including fabrics, is animated by “bones”.
On the PS3, there are two separate bones in each breast, giving a total of four, and it is these which give rise to breast motion, whereas on the PSP for the sake of load reduction things had to be simplified. We managed to obtain satisfactory results with only one “bone” across both breasts.
Swaying breasts may be most enjoyable, but from time to time we are warned that they move a little too much.

It is no surprise this game has achieved the fame it has, given the amount of effort which goes into tastefully recreating the female form.
Via Hachimaki.
The rest of the article:

now, if every game just gave every effort to everything ,like this game has.....
Boobies. Jiggling Boobies.
I liked this game, back then when it wasn't called Dead or Alive. But you have to give props for the custom character system, that's the only gem in this one IMO. [lol cosplay charas]
Eww why Ivy focused, Taki and Shura is my love
This matters to who?
Good work Namco
YAY! go namco man the soulcaliber chicks are hot. Oh yeah before I go boooobssss!
Shitty..I mean shiny graphics dose not make shitty gameplay better.... NEXT!
Seeing this game on PSP makes me so glad Nintendo didn't upgrade the hardware on the DSi and just added a bunch of DLC content and a camera that should have been on it 3 years ago. I mean really, why the hell would I want to play games that look that good on the go?
All that attention to the breasts and they couldn't even make the faces not look like shit in that game
that's quite interesting...
I wonder what is this "bones" that the developers were talking about...
Quoting someone here:
"A bone is something for a mesh (the polys and such) to grab onto for animation purposes (like a handle). Moving a bone will move the parts of the mesh it has weighted to it. If a mesh didn’t have bones rigged to it, it would be a complete pain in the ass to animate"
Bone in 3d modelling is when you make a "skeleton" inside a model and connect the char's polygons to "bones" that can't change length, but can rotate (they still have to be connected to themsevles, just like in real skeleton). It makes animating FAR easier than it would be when you were manually moving vertexes...
And BTW: Does anybody has anything more of it (possibly other chars)? OFC if there exists more...
Oppai... Physics...
...SCIENCE!
Dammit.,,i want an ivy model without those dang lines. its like she's wearing those dang fishnets that i hate.
dude where did you get those pages of soul i want to see which book it was from! can some one help me out!
wheres the source code? i need to code some boob physics
Gamer 1: Hmm same old tired fighting game, nothing really new about it. What do you think?
Gamer 2: Boobs
Gamer 1: Uhh... ya, but what do you think about it being the same old crap over and over?
Gamer 2: Boobs... drools
Gamer 1: Ummm...
Gamer 2: *the puddle of drool is getting bigger*
Gamer 1: I guess you have a point. Boobs *drools*
Wasting so much time on those breast physics, when you can just have a thrifty yet delicious DFC...
it doesn't load much your graphics card or frame rates too...
silly developers...
So selecting Amy and Talim would increase the speed of loading,eh? :3
It's for the PSP and PS3...
developer PCs have video cards...
Not everything. Some use the CPU rather than a dedicated graphics processor.
Everything has GPUs in them. Graphics don't magically pop out of thin air. PS3 uses a chip based on NVIDIA's Geforce 7800 series.
True.
Very. Now all we need to do is wait for Icy-nee-san's obligatory "moar loli" comment.
Now you mention it what take nee-san so long to comment? I bet she's probably in "training mode" i guess.
kukuku
needs moar loli...
I think they already catered to the pedo crowd with Talim.
You forgot 13yo vampire pseudo loli...
Why don't NamcoBandai just produce an eroge? I bet they will earn billion within a short time.
Because there are some people who prefer a little case of fighting "before" sexual explicit.
It's like an Eroge; but in a much more broadened view.
Earn points, dress Cassandra up with costumes and etc. That's what I see about it.
"Earn points,dress Cassandra up and *strip* her with FINISHING MOVES!" What a turn on!
The legend will never die.
Agreed,and i would penetrate Sophitia with my "custom" Soul Calibur!!!! :)
"Thus our 'epic legends' will be retold for generations to come."
EX-fucking-xactly.
I do wonder, however... how the hell can their clothes get so invulnerable to those shard edges?
I so want to find out; then, penetrate Cassandra with my own Soul Edge. ;D
WTF Ashley Outfif? XD thats amazing
LEON!
Actually played around with "boning" breasts on a model years ago. (Lost time and interest in between then and now; revisiting my work.) I found that the usual act of rotating at the joints made them look either completely rigid or deform unnaturally, depending on how the skin weights were painted. Image doesn't quite show where these joints are rooted, because it seems like they sort of double back towards the spine.
Working on a cluster-based solution, with some conditional scaling to give a bit of "volume conservation", allowing for them to be pressed against the body, react to gravity more naturally when lying on back or upside down, and so on. Seems maybe ncloth (particle-based clothing) might be more appropriate, but I'm sticking with what I'm comfortable with.
oh yess :3
Yay for endless possibilities!
yay for bewbs? or oppai?
maybe...both? :D
BOOBs!
Bones in breasts are scary.
One bone across two breasts is scary too.
Flintstones. Meet the Flintstones. They’re the modern stone age family~~...
A bone in 3d modeling is a term that refers to the ability of the object to be moved (in the sense of it being moved along an axis connected to another bone.)
or somthing like that, i wasn't really paying attention in class at the time.
Close enough. A bone is something for a mesh (the polys and such) to grab onto for animation purposes (like a handle). Moving a bone will move the parts of the mesh it has weighted to it. If a mesh didn't have bones rigged to it, it would be a complete pain in the ass to animate.
It's also part of the process I hate the most (rigging), much in part because of the joy of painting weights.
Wait
UV mapping sucks too
I'll have to try that out the next time I'm texturing something. Thanks.
Roadkill makes UVing easy mode
yes skinning/painting weights is a pain in the ass
I hate 3D for those reasons. I had to learn how to do every step of the process, from modelling to animating to lighting; let's just say there's a reason I prefer a pencil and paper.
Personally I love 3D because I cannot 2D animate to save my life. I like charcoal when it comes to a paper medium but pencil is okay too (and cleaner, obviously). Digital is good when I need to color something (Photoshop, Painter).
holy shit thats for refering to me to roadkill,
uv mapping was le biggest bitch for me too D: