Hi all,

  Whenever we use dynamic cloth, we turn off ik and use zero position, so that the cloth fits on the models. The model puts his/her arms horizontal position. This is frame 1.

   Is it possible a model with dynamic cloth not start with this "stardard position"? Or, is this a must?

Thanks in advance

No, I don't think it's a must, but the clothing must fit the figre in the first frame. You can have your figure for example sitting in frame one, but the clothing must fit him/her in frame one as well. The clothing must be in sitting position as well. No poke through. Then proceed as you normally would. That's my guesstimate.

it entirely depends on the cloth. if the cloth is designed for a ZERO pose start, then, unfortunatly you must start with a zero pose. of course there are work-arounds.

if you are doing say an animation, and the first frame is not a zero pose, the easiest way to get dynamic cloth to work in this situation is as follows :

Save the pose of the character at Frame 1 to your library.
save your current scene, and open a new scene.
add the character and the dynamic cloth you want to use.
set frame 1 to the zero pose, and frame 30 to the pose you saved to the library.
*if your pose you loaded is not in the same position (different XYZ coords of either the hip or the body) go back to frame 1 and reset the hip/body translation to the same as frame 30.
in the Dynamics room, set stretch/shear/fold resistance to 50 and run the animation.

after the animation is complete, you will have the dynamic cloth fitting your pose at frame 30. Set your current frame to frame 30.

click file->export->wavefront OBJ

export the dynamic cloth object only.

Load up your original scene/animation and then import the wavefront OBJ you exported. untick everything but UNIFY Normals.

if you did everything right, the dynamic cloth will load into your scene fitting the pose in frame 1 exactly.
from here you can continue to render your scene.

> Quote - Hi all, > >   Whenever we use dynamic cloth, we turn off ik and use zero position, so that the cloth fits on the models. The model puts his/her arms horizontal position. This is frame 1. > >    Is it possible a model with dynamic cloth not start with this "stardard position"? Or, is this a must? > > Thanks in advance

 

It is Not a must to do this. You can use the "Start drape from zero pose" option with or without IK turned on. And Pose your figure as you want it directly in frame 1. As long as the cloth item was originally designed to fit that particular character, (If you use this option) it doesn't matter if there are "poke thru's" or not in the Posed position. In fact they should be expected since the dynamic clothing won't take the shape of the pose(s) until the simulation is calculated.

the start draping from zero pose can become an issue (as I found) if your characters Hip or Body are rotated around say the y axis, the zero pose will reset this, then, when the draping is calculated the character will rotate causing the cloth to "spin" around the character.

Quote - the start draping from zero pose can become an issue (as I found) if your characters Hip or Body are rotated around say the y axis, the zero pose will reset this, then, when the draping is calculated the character will rotate causing the cloth to "spin" around the character.

 

Yes, this is true. There are of course, situations where you don't actually want to use this method, (which is the underlying reason why it is an "option") 

I will sometimes set the hip y axis in Frame 1 to the same setting as in the last frame. Keeps the cloth from doing that spin thing.