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Creating a vibrating membrane
show user profile  I82Much
Hi folks:

I've tried searching a few different keywords and nothing really came up.

Here's the challenge: I'm trying to animate a membrane moving back and forth in time with sound. I've seen tutorials with how to assign a NoiseController in the Motion Controller rollout; that's not the problem.

The issue is I don't want the entire object to move; I want it to look like the middle is bulging in and out, but the sides stay centered. I tried putting a poly select on just the vertices I wanted, and then applying the Motion Controller but apparently that's not how things worked.

Then I tried making the membrane like a skin and putting an object in the middle, and then making the "bone" move back and forth, but apparently skin doesn't work like that - if you have just one bone, the entire skin is going to move. I tried hacking around with multiple bones, and it just want not pretty.

Hopefully I'm expressing myself clearly; I want to animate a vibrating membrane (e.g. a drum head) and can't quite figure out how to selectively move a soft selection of the membrane.
read 583 times
3/28/2009 1:07:02 PM (last edit: 3/28/2009 1:07:02 PM)
show user profile  3Ddeath
what about applying a noise controller to a dummy object, use linked x-form modifer to attach the vertexs to the dummy

Portfolio Site
read 575 times
3/28/2009 1:20:25 PM (last edit: 3/28/2009 1:20:25 PM)
show user profile  toldaddy

This is the basic principle. Jing is messing with my computer thus the rush.

read 567 times
3/28/2009 1:33:13 PM (last edit: 3/28/2009 1:34:22 PM)
show user profile  3Ddeath
...well ...umm yah, if I wasn't rendering right now id have one of these fancy pancy videos made too.

haha jk
these videos are great, I wish I had more of these when I was first learning 3dsmax, this not only helps the people asking for help but also teaches the people lurking around.

Portfolio Site
read 536 times
3/28/2009 2:59:53 PM (last edit: 3/28/2009 2:59:53 PM)
show user profile  Duders
He's right about the lurking.

I now know what linked Xform is, so that's one of the seemingly endless list of modifiers. Some say the true meaning of all them them is lost in myth and legend.

read 514 times
3/28/2009 4:26:34 PM (last edit: 3/28/2009 4:26:34 PM)
show user profile  Dejitarujin
If you really want to be technical about it, I think the movement actually very closely resembles ripples on a pond, rather than the whole thing moving at once. I'd have to check with the Time Warp guys ;)
Specialty: Non-organic modelling and effects.
Setup: 3D Studio 2010 with finalRender.
Rig: No, no I can't.
read 486 times
3/28/2009 11:53:20 PM (last edit: 3/28/2009 11:53:20 PM)
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