Page MenuHome

Particle Edits not being deleted from blend data after 'Delete Edit', filesize bloat
Open, Confirmed, LowPublic

Description

Blender Version
Broken: blender-2.80.0-git.03bd024c077d-windows64

Short description of error
After deleting a particle edit, the filesize remains the same.
For particle systems with large amount of particles, this leads to massive filesize bloat that cannot easily be reversed.
The only way around it is to delete the Particle System and add it again with the same Particle Settings, but this is troublesome because particle settings relating to the object (ie, vertex groups and materials) need to be setup again in the particle settings.

Exact steps for others to reproduce the error

  • Create particle system (eg, hair)
  • set particle amount to something large like 300,000
  • in particle edit mode make some changes
  • save, observe filesize (around 100mb)
  • Delete Edit from particle system panel
  • save, observe filesize (doesn't reduce)

Details

Type
Bug

Event Timeline

Tom Wilson (hedgehog90) renamed this task from Particle Edits not being deleted from blend data after 'Delete Edit', blend filesize bloat to Particle Edits not being deleted from blend data after 'Delete Edit', filesize bloat.
Sebastian Parborg (zeddb) triaged this task as Confirmed, Medium priority.

The particle edit data only seems to be cleaned up when you delete the particle system.

Brecht Van Lommel (brecht) lowered the priority of this task from Confirmed, Medium to Confirmed, Low.Apr 9 2019, 9:40 PM

Not sure why that was assigned to me in the first place?

@Sergey Sharybin (sergey) think the whole psys->particles thing should be cleared out when we remove edited hairs? At least afaik when you add hairs, psys->particlesis NULL, until one start editing them…