Cineversity

Hi, i have some dynamics falling and then animated to follow position and go from a place A to a B.
I have a plain effector set as “absolute” for that matter. Issue is that some of the pieces are not following and im not sure why. I tried with forces as well different setup (a gravity with linear field to pull em up) and again some of pieces are not following.
What might be the issue?

scene file: https://www.dropbox.com/s/j0fz7x1eup8tk33/small scale dynamics.c4d?dl=0

Let me know tyvm

Hi thanulee,

Thanks for the scene file.

The clones hitting the floor first and get pushed the most, will lose the most energy; hence they get very fast into a rest mode. (They switch off.) When you call them home, they don’t listen anymore.

For example, you have the Floor Friction Value set to 99%, that will draw a lot of energy out of them. With five times the solver Steps, this energy will be taken out faster than with the default values. The trigger-moment to stop calculation for those is quickly reached.

Scene file
https://www.amazon.com/clouddrive/share/q2lEfRENU8nEqLWzAAUnb6DyzpR2udecpsf6gHqyoqC

All the best

Great thanks a lot! What if i want to maintain friction though and substeps? Cause i have some flickering in objects in that scale if only 5 substeps.

Yes, the scale is pretty small, and you should adjust this a little bit. The cubes are tiny. I would search there first before I use any other parameters to counter this.

If you have reached the switch off point, the Ghost object will change no behavior based on its work, but it brings things back into the mix. This would be the most intuitive way, from my point of view.

Scene file
https://www.amazon.com/clouddrive/share/vrhdTCam0zAntnlCy1R3lKm3ijGknihtlVDRYutf0KT

I pull the floor down, to showcase that no dynamic is working anymore. Then I move the Ghose Cube over them, and they are back in the game.

Cheers

Thanks again!
A more generic advice if u please. What do u suggest for c4d playing well with dynamics? I noticed that real world scale (especially with very tiny objects) is not ideal. It also gives me troubles in other plugins eg. TFD/XP. The reason im asking this is cause i do a lot of macro works and in order to maintain the analogies i model in real sizes. Maybe i should have the smallest ones in my scene to a value of around 10-20 cm?

You’re very welcome, thanulee!

Please have a look here: (scroll down to scale)
https://help.maxon.net/us/#DYNWORLDOBJECT-WORLD_GROUP_EXPERT

If I take the scene that you have created as your standard, perhaps the Dynamic Scale parameter should be somewhere between 2cm and 8 cm. Wild guess here on my side.

Take a small as well as fast scene, and change each time only one parameter. You might take more massive steps initially, to “feel” where it falls apart. Then dial back to find the sweet spot.

My best wishes