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Victor Camacho Guerrero
slow mo for cloth
on Mar 27, 2014 at 11:44:47 am

Hello ,

I have been following this tutorial from Hellolux. https://vimeo.com/12036551

He is using the point cache tag for Slow mo the Cloth. However does not work in mine. I followed the steps one by one, but nothing. Is this working for C15?

Is there any other way of doing slow motion for Cloth? Besides Baking the object.


Many thanks


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Victor Camacho Guerrero
Re: slow mo for cloth
on Mar 27, 2014 at 12:23:27 pm

I forgot to say, I want to animate the Scale from the point cache. Lets say the tag goes from 100% speed and suddenly goes into 20% speed slow mo.

If i do that the object comes back to his original state:(

Many thanks


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Adam Trachtenberg
Re: slow mo for cloth
on Mar 27, 2014 at 2:24:16 pm

The method Tim used is working fine here in R15 but it does seem that you can't animate the cache scale parameter. As Tim suggests, you can use a time track on the backed animation if you want to vary the speed.


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Adam Trachtenberg
Re: slow mo for cloth
on Mar 27, 2014 at 4:30:07 pm

Here's an example using a time track: 7295_clothslowmott.c4d.zip


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Victor Camacho Guerrero
Re: slow mo for cloth
on Mar 27, 2014 at 6:39:52 pm

Hi Adam,

Thanks so much for your file. Really kind.

I actually figured out using the time track by this tutorial
http://www.cgmotionbox.com/2012/03/using-timetrack-feature-in-cinema-4d/.

In the file I created, a quite complex cloth explosion, for some reason the playback in the editor of the time track gives some errors. The animation feedback is really choppy and not doing what it is supposed to do. Is this a normal thing?

Here the file with time track applied: http://f1.creativecow.net/7296/project-with-time-track-applied

and here the file without the time track applied: http://f1.creativecow.net/7298/project-without-the-time-track-applied

Many thanks


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Adam Trachtenberg
Re: slow mo for cloth
on Mar 27, 2014 at 7:15:04 pm

Okay, a couple issues. First, it looks like you're applying the time track to the dynamic tag's pressure animation track rather than applying it to baked PLA data. That's certainly something you can do, but I think it's a lot harder to predict the results that way than it is if you bake the dynamics to PLA keyframes first and then adjust the PLA timing.

Second, your time track slants up and then slopes down for a bit before sloping back up. Not sure if you realize it, but when a time track slopes down it will actually cause the animation to run in reverse.

Your file is a little hard to parse because of all the display tags, but if I was you I'd first bake the dynamics tags (use bake all) in the tag's cache tab, then the bake function in the timeline. Then I'd bake the cloth tags to PLA (don't have to cache first). Then I would delete all the cloth and dynamics tags and apply a single time track to all the baked geometry.


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Victor Camacho Guerrero
Re: slow mo for cloth
on Mar 28, 2014 at 4:55:18 pm

Hi Adam,

I have been playing around trying all possibilities, and everytime I bake the objects and remove the tags, the objects behave really badly.

In the first place, I tried to follow your steps. In the first place if I press Bake All in the dynamics tag, the square bounce really heavy. Later applying the bake function, kind of works, but not doing exactly the same ( do you bake the soft body dynamics to PLA too?) . I baked the cloth tags to PLA and after I delete them, they explosion goes crazy splashing polygons all over the place.

Did you already try this with the project?

Many thanks for all this


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