cloth simulation

[AdamT]

Originally posted by adem
is it possible to do cloth simulation for say a t-shirt in ciema 4d ?

Im wanting to do what http://www.syflex.biz/ does for maya.

I did the dynamics tut for the table cloth.,.. but I am still unsure how to go about clothing... or if it is possible.

I want to pose a chracter and not have to doing the clothing folds myself.

if its not impossible please point me in the right direction.

It is not possible I'm afraid. Given that, I don't know how to point you in the right direction. Do you mean you are interested in acquiring a different program? If so, I know clothing simulation is possible in LW, XSI, and Poser5, and probably in Max and Maya as well, but I don't know that for sure.

[ThirdEye]

Lw: dunno
Max: you'll have to buy a plugin for sure
Maya: you'd have to get Maya Unlimited (which is 7000USD) or Maya Complete (2000USD) + Syflex (2000USD)
XSI: you'd have to get XSI Advanced (which is 12000USD)

[flingster]

this seems to get requested a lot recently...and unfortunately no one at maxon seems to have addressed it.....by either developing this side of cinema or by working with another plugin developer to deliver a production tool that fits the bill.......unless someone knows otherwise....i do live in hope though cos the work maxon did to secure shave benefited us all....so hopefully they can take the same initiative and come up with cloth simulation....fingers crossed...:shrug:

[flingster]

just had another thought.

could something like samirs dpack (project polygon or dplofter) help you http://www.the3ddesigner.de/
to get deformation in cloth...dunno just a thought.

also something like dynamic spline projector maybe to fake the folding or cloth or something...http://www.tools4d.com/

that said i don't own either of these plugs so i can't comment...maybe someone else with a little more experience might know if its possible to fake it with these plugs...say the twists or folds of cloth....i'm presuming youre gonna animate it also.

[bry]

Hi,

You can probably simulate a T-Shirt with Dynamics or even SoftIK.
At the moment, there's no dedicated Cloth plugin or system that I know of for Cinema4D, but if what you need is just something like a T-Shirt, I'm sure there are lots of ways you can get away with.

Bruno

[greekdish]

I dont see why you cant do cloth with Soft Body Dynamics?? You can do cloth in all major 3d apps as long as it has soft body dynamics. You dont need Maya and Syflex, although Sylfex gives you much better options, cloth is totally possible with Maya Complete. With Max 5, you have Reactor when you buy 5, with LW, you have motion designer. Cinema can do cloth with its dynamics, although its VERY slow.

[derwolpertinger]

i remember samir talkin about developing a cloth simulation plugin. it's been a while since then so maybe it is about to be released!:D :wavey:

[anobrin]

Originally posted by adem
is it possible to do cloth simulation for say a t-shirt in ciema 4d ?


I want to pose a chracter and not have to doing the clothing folds myself.

if its not impossible please point me in the right direction.

Are you you takling about an animation with clothing on a moving Character
or a still render:shrug: ???

if its a still just model the clothing folds for the render
if its an animation then the other answers in this thread have covered your options

[adem]

I am just wanting it for stills. But I will want to be doing different stills of the same scene. Like you would do for a comic book. mabey 10 or so stills of the same room/character in different poses.

I just figured if I could get a plugin or something like that it would save me the time of doing it myself

I know softbody tags will react to gravity and wind etc..

so I figured if you had your shrirtless hyper nurbs character and put a shirt over the top of the character with gravity and spring settings...and also the right collision detection you should be able to pose the character and not have to worry about adjusting the shirt.

is this wrong ? if so.. why ?

[derwolpertinger]

it's not wrong, it's just horribly slow.. :( ..unfortunately..

[AdamT]

It's possible it could work for a static figure, but I don't have Dynamics. I'm told that it won't work for an animated character because Dynamics' collision detection isn't precise enough.

[geoffr]

adem
I'm trying to do the same thing at the moment and I'm having the same problem.
I've thought about using spline deformers to adjust the cloth manually when the figure is moved. I'm sure this will work but have you ever tried to make a spline move with a bone? It's not easy.
I've also tried using other bones to effect the cloth mesh. This is easier but you'll need a lot of bones (one for each potential crease).
If it's for stills, why don't you try posemixer? In my case, I'm trying to rig the character for animation using ik and sik and then use it for stills but I'm afraid this seems to be too optamistic. I'm going to have to use posemixer for all the poses instead of using it for just the hands and face. It's nowhere near as dynamic but it is for stills and not movement so it won't matter so much.
I think if you want want to use a character with anything near realistic clothing then, unfortunately, cinema seems to be lacking.
There is a cloth simulations using sik here though:
http://www.imashination.com/movies.html

[anobrin]

I have the C4D Dynamics package
and, at one point,set out to prove wrong those people that
swore that clothing simulation could NOT be done.:blush:

After much frustration I realized they were right
it's the nature of the "Solver" that dynamics uses
you add the solver object to your scene and make
all objects that are to Have Dynamics properties
a child of the solver.and add a Gravity object
you then add dynamics tags the the object that are now children
of the main solver.
The rigid objects, for example your characters torso,
must have their mass set to Zero to avoid being pull downward by the gravity object the collsion objects ( shirt) will have to have a minimum mass of 1.
the collsion cloth object will also have to have it's spring tag method set to cloth.
for the best cloth results your shirt should have at least 1 hypernurbs subD applied to it. And make sure the normals of the polygons are facing each other in ALL of your object that are to collide with each other. or they will ignore your collision tags

Once these and several other tag properties are set
you must define the scene starting state ( initialize scene)
although you say you dont plan on animationg this scene
the bad news is that the cloth/collsion simulation will need
at least 30 to 90 frames to calculate how the cloth will drape over
the rigid object.
each frame if this calculation is agonizingly long and must be endured to find out
if your over all integration Method is correct for the effect you are seeking :

Midpoint-the least accurate but fastest to process

Runge Kutta-ten tine more accurate collision but four times slower

Adaptive- very accurrate but so slow you will be convinced that Cinema4DXl has completely frozen.:banghead:

IN your case everytime you repose your character the scene will have to be reinitialized and this multi-frame calculation will have be endured again and again
trust me it will be easier to use magnets the adjust your clothing Mesh than this tedious and unpredictable nightmare!!!

Hope this helps.

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