I took a look, nice approach, thank you! I think I have this flying bag part figured out, finally.

As long as we're talking about this shot, maybe you can answer one extra nagging question. I have the bags animated in a way I like now, and I wanted to add some particles that are being thrown at the bag and have the bag interact with them. Now, I tried these two ways, and both failed. First, I tried adding a rigid body tag to the cached softbody object...didn't work. Then I tried baking off an alembic file, then added the rigid body tag to that, and it killed the baked animation. Doing some research, I did find an older article saying to use the "use animation" checkbox. But seems the new tags don't have that option. I'm at a loss. What is the correct tag set up for having an animated Alembic file act as a collision object?

I didn't upload a file, as this seems more of a "check this off" type of thing. If needed, I can, though.

@Dr-Sassi said in Throw a chip bag?:

Hi background-permit,

From the time stamp based image of the tutorial (I did not watch it -one hour…, after all, the first two weeks of ‘26 I have time off), but I wanted to share this with you. Take it as a sketch.

You asked about the Balloon while also having Animation running. (One Bag is animated)

Example
CV4_2026_drs_26_SIcb_51.c4d

Enjoy

Interesting approach!
It misses the gravity, but I like the look! The first part of this animation has this pop-up and fall-down rhythm to it. So it sort of needs to match.
Here is an earlier version: https://f.io/dgWb8ZY9
You can see the "up-down" approach. I am trying to make the bags more dynamic and have them smash into each other....As I said, I think I now have an approach, thanks to your help. Now I just need to dial it in!

Enjoy your '26! I'm just getting over the flu myself.....good times

So...credit where credit is due!
I conducted additional research, and it does not appear that you can directly "throw" an object as a rigid body and then have it inherit its inertia when using a soft body. However, after evaluating the scenes you provided and conducting further analysis, the key is the "with force" keyframing. Basically using that as an "enable" on the off switch. Which is giving me a somewhat passable look.
Your scene (and help) has definitely shaved some time off my pain. For that, I appreciate you!. Thanks again, my friend.

Hi, again, thanks for replying!

Yes, I can follow the tutorial fine. My question was the keyframed "tossing". As well as the fact I want to have gravity. I've used that "tossing" technique many times before, and it works perfectly. I just never did it with a "soft body". I have no problem running additional tests, as long as I know I'm on the correct patch. As you know, you can spend days testing a technique only to find that I'm on the wrong path or that there's a much easier solution. Which I have unfortunately faced many times...which is why I wanted to run it past you.

Thanks again!

Thank you for the input. Sorry about my limited file. I must have done 6-7 tests, but once I failed, I deleted the assets and tried another....hence just the one file.
I received your file. Thank you. But it still misses the mark.

I was sort of (hopefully) trying to base it off of this video: https://www.youtube.com/watch?v=c_haELIyIus&t=2199s

You can see the bags have stiffness to them. I guess an inflated balloon or a softbody? The interaction looks good. The part that is missing for my needs is that the motion is just based on turbulence, not a directed throw. If you look at my file, wrong as they may be, they have two bags. The first one shoots up and switches to dynamics at the peak...which would give a slight launch, and then start to fall down. The second bag would be slightly behind. So once the first bag stops its upward motion, the second bag sort of pushes it out of the way. In theory it's a two bag reveal. Bag one float into screen, and then a beat after, bag two pushes it out to reveal that bag. Again, I like the feel of the look in the video tutorial I showed. It just lacks the motion control for the throw. I tried to use wind, but it just kind of collapses the bag.

Any idea....Hopefully I explained myself, but I'm not sure.

I'll keep experimenting...if you have any further input, I'd love to hear it.

Thank you again.

Odd. I didn’t receive and alert. I did however make the file open to anyone. Please try that again.

Lmk if there is an issue.

Best.

I have a project where I want two chip bags to collide. One goes up first, then the other kind of "PUSHES" it aside and takes over the screen. I want to have some bag dynamics for realism.

Normally, I would keyframe an upward movement on a Rigid Body object, and then keyframe on the Rigid Body dynamic on the last frame. This allows me to have the exact movement and then at the end, let the dynamics take over, giving me a natural look. But in this case, I want some soft body action

I am not so familiar with soft bodies. I tried to keyframe on the "ENABLE" button, but it does not seem to work. It just crumbles the whole bag on frame one. and won't let me animate the direction

I see a ton of videos on YouTube that show pillows floating and interacting in zero gravity, with some turbulence / random effectors twirling them around. But I can't see it in a directed way. Is this even possible?

Here is my failed test: https://drive.google.com/file/d/1rP64D3RI9K9xQDA5X1Y32IGzgp5SzsDq/view?usp=drive_link

Thanks for your time, as always. You're a lifesaver. On a side note, I always tell my Blender friends that one of the main reasons I love C4D is that we have your expertise to fall back on. As limited as I use it, it's priceless when needed.

So, I wasted over 2 hours of R&D to find out I just needed to move the spline layer order up! Live and learn, LOL.
It's near midnight in NY. So, I'll check your file in the AM.
Thanks again!

...and thank you!

Wow...who would have thought...yes, if I used my cached spline, it now seems to work. Which is great. Just out of curiosity, why is my Alembic not doing a 100% match?

Thanks for the version heads up. We are mid-project, for the past few months...so we don't change until we are complete. Just saves headaches