My cached animation is weird
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I'm using a Basic Emitter > Cloner > Rigid Body. When I preview the animation just by playing from the timeline, it all appears correct. But when I cache the object, from the Rigid Body tag (but I also tried from Particle Group) and at that point, after caching it all looks super weird. The balls move with glitches and are not smooth.
Can you please help?
https://drive.google.com/file/d/1gXekBc6zd0DNZNz_n27clkIaSFeVcj28/view?usp=sharing
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Hi shoot-laugh,
Perhaps you need to switch something off after caching, which overwrites or influences the movement. Example: Do you have an Attractor working? To not ask endlessly and waste your time, I like to explore a project file instead.
As you wrote, they do not move smooth, what I need is a project file. Leave the cache out, and anything that is not part of the problem, so the file is below 1MB. If larger, please use Google (WeTransfer, Dropbox, or Adobe and Apple cloud services are fine too, others I don't touch).
All the best
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Hello Dr.Sassi
here you can find the project file.
https://drive.google.com/file/d/1CTXSnvfQRP-QpBBvmkHRrmKQkkKznKrE/view?usp=sharing
And no, I have not attractors or other forces in the scene. I have checked whether there is some other element disturbin the sim, but I can't find any. I'm not the most expert in particles, so I may be missing something
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Hi shoot-laugh,
Thank you for the file.
The particles deliver only at the first frame a position, then the Rigid Body takes over. When I replace the particle source with a simple Spline that has nine vertices, things are stable. See file. My problem-solving strategy was to replace with each exploration one part. I even set the top and bottom of the "Collision Ball" into more polygons to see if the N-Gon creates problems. I will share two files as the changes might be otherwise a long list, often with no stable result. The two files, with different information flows, are both stable.
Observation
Yes, I have noticed that randomly, some clones disappear. However, that is not a reproducible situation, as each new cache is different.I have no answer for why the particles deliver a problem compared to the Spline I have used. I have set up the Particles with the same size, cached them first, then all at once, with random changes. Again, there should be zero influence from it, except that a particle disappears. I leave that to tech support to pinpoint.
The preview file is done with a low sample rate, hence the noise and flicker, but the spheres are stable.
Here are two files in one archive.
https://projectfiles.maxon.net/Cineversity_Forum_Support/2025_PROJECTS_DRS/20260917_CV4_2026_drs_25_SIeb-MGeb.zip
Please note that reversing the "Collision Ball's" normals and setting the Regid gave me no problems.
The second file is the one with the Spline.I hope one or the other will work for you.
All the best
