Degraded Performance with Chaos Scatter Doesn't Restore by Hiding

[Byteman3D]

I report this issue, assuming that hiding a scatter object would turn off its calculations.

I have a virus model, a geosphere and two highly detailed spike protein structures scattered on the surface with a total amount of 62. Sphere is also animated with noise modifier.

A slowdown during viewport playback is expected and experienced. I can't restore the perfomance by hiding all components of the scattered model. I have also tried to delete the noise modifier.

Deleting the the same hidden objects reverts back the playback performance.

Performance change is like from 80 fps to 10 fps. (approximately) File is in the attachment.

3DS Max 2024 with Corona 11

[aaouviz]

I remember reporting something like this years ago. Amazed it's either returned or come back.

I have a script button that turns off all scatters (and hides them). It's a great time-saver.

[Byteman3D]

It is possible that this may as well be not related with Corona Scatter itself, but 3dsmax trying to calculate something although it is hidden.
This behavior makes me feel uncomfortable starting a new project in 3ds max.

This happens from version to version. Once groups were causing stuttering playback and hiding objects was not helping regain the performance. I remember a version that solved it apparently. I presume Autodesk had disabled most refresh routines in that version. Some things weren't updating  in realtime but reflecting the result after doing something else.

[Avi]

Hi,

I opened your file using 3ds Max 2024.2 and Corona 11 HF 2.

For me, playback is very smooth, I dont see or notice any lag.

Please see my video attached.