Particles behave differently in rendered animation than in viewport
Closed, ArchivedPublic

Description

Particles in viewport will die on hit with a collision mesh - when rendered out to a video, they will pass right through!

Im am trying to render frames 320-500

You can see the particles in wireframe mode in the viewport when you select the emitter (Microshpere.005). They die when hitting the (hidden) mesh named "particle collision cell"

This is an animation for a press release going out in a few days, I need a way to resolve this ASAP, so that the particles stay inside the cell

Details

Type
Bug

What do I put here?

No idea why this happens, but an easy and quick solution is to bake the particle simulation so that rendering uses previously computed correct particle positions instead of computing them again on the fly.

Luca Rood (LucaRood) closed this task as Archived.Jun 6 2017, 11:55 AM
Luca Rood (LucaRood) claimed this task.

This is an odd behavior indeed. Might be a mesh evaluation order issue...
However particles are subject to an overhaul in 2.8, so we are limiting the work on the current system to only regressions.
Thanks for the report, but as this is not a regression, archiving it for now.