I want to make an object shaking (or trembling) quite rapidly. I know it can be achieved with some effort (but not very good looking) by manually keyframing its transform or/and motion. But as far as I remember, I think I've read somewhere here some year ago about some plugin able to convert a waveform from an mp3 to such motion, but I'm not sure  Or maybe somebody has an idea about how to do this.
Thanks!

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Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12

Hi Ampertox, I created a plug-in that can shake either camera -OR- props.  This could probably do what you are looking for:
https://marketplace.reallusion.com/shakycam-plus
You can control the axis, amount of shaking, and frame range.



Reallusion Certified Director / Reallusion Best Visual Award / Reallusion Certified Content Developer
See all the G-Tools Plug-Ins available for iClone here: G-Tools Plug-Ins

Might be worth considering the motion puppet and achieving the effect via the mouse.

@gordryd Thank you, I will try it, it didn't have it
@thebiz.movies Thank you! The problem is my english is not so good: what I want to achieve is closer to vibration rather than shaking - if you imagine, for instance, an object on the edge of the table when earthquake begins - the motion would involve very small variations around a central point, I don't think the puppet with mouse can achieve this, better manual keyframing.

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Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12

Regarding audio waveform, there was a script by RL https://forum.reallusion.com/FindPost416817.aspx
But it is messy to play with.

https://www.youtube.com/watch?v=pX84nW6y8Ko 

______________________________________________________________________________
Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12

lol yeah
Took me a week to disassemble that script to understand how the damn thing is working and then filter bass and treble and then shake/move/tile the UVs on some materials based on that
If you brave enough, you can sure create an earthquake base on some generated audio files. 

Are you doing everything in iClone? I would possibly try and do what you want in post - After Effects and use wiggle - I have used this to get camera shake and you have total control. Or in iClone layer the object four or five times, reducing opacity on the underlying ones and shift each one slightly from side to side.

I wasn't interested to shake the camera (which yes, can be easily done in post-editing) I was interested to shake an object - in my case, character's hand. I highly doubt this feat can be achived (easier) in video post-editing.




______________________________________________________________________________
Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12