3Ds max timelapse effect! Need help!

[3Destate]

Hi! so here is my issue.
I need a timelapse effect of some people walking in an out of a building.
That would be fine, where it not for the camera is in movement over 300 frames. it is a slow path constraint
So we have to make a animated HDRI, and people walking super fast, but the movement of the camera stands the same.
We are trying to figure this out by using Populate flow.

The issue I encounter is the need to render waay to many frames only for the populate people seperate from the rest of the scene.
Is there another way to achive this effect?
I tried to render out every 15'th frame, but After effects keep grinding in my face that frames are missing.
Best regards

[Frood]

I tried to render out every 15'th frame, but After effects keep grinding in my face that frames are missing.

This would be the simplest solution and close to "reality". If you load every X frame into AE just make sure to tick "force alphabetical order" when importing the sequence.


Good Luck

[lolec]

to avoid the missing frames in AE this is what I do:

Set the windows explorer to display images alphabetically> select all images> right click on the first one> rename > choose any name.

Images will be renamed in the following format NewName (1).jpg  NewName (2).jpg ....

[romullus]

For renaming files i would highly recommend Bulk Rename Utility.

[Jpjapers]

Premiere pro has a feature called posterise time where it plays back at the original framrate but lets you adjust the input framerate. This will do exactly what you want with a piece of smooth footage.