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Transfer Cloth Coordinates
Okay, I have a problem that I have been trying to solve for some time now but I can’t quite get it. I want to transfer the motion (position and rotation) of an object (object A) being dropped (using the cloth engine for the dynamics) to an other object (object B) that is similar in shape and size.
I don’t want to apply the cloth directly to “object B” because the polygon count is too high and it would take forever to calculate. I can get object B to follow object A for the position coordinates, but the rotation is giving me trouble. Here is what I have done so far:
1) Create my animation for object A (dropping it onto a plane using cloth).
2) Bake the cloth animation using Cappuccino (PLA selected)
3) Using xpresso, I map one of the points coordinates from object A to a null object.That takes care of the position values. But how to I transfer the rotation of object A to object B since points don’t have a rotation value. I was thinking about making the null object always point toward a point on the other side of object A, but I am not sure how I would do that. Any help would be greatly appreciated. Thanks.
Kevin
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2 Replies
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You can use the point node’s “point normal” information to get rotation values.
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Adam,
I tried using the point normal for rotation, but I get some strange results. It does effect the rotation, but it does not mirror the original object. I have attached to file below. If you have time, I would love some insight into what I am doing wrong. Thank you for your time.
Kevin Snyder
Position Only:
https://dl.getdropbox.com/u/1426292/cloth_drop.c4dPosition + Rotation: https://dl.getdropbox.com/u/1426292/cloth_drop_rotation.c4d
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