Particle edit lag when interpolated children display amount is high #60373

New Issue

Daniel Bystedt · 2019-01-10T00:34:54+01:00

Daniel Bystedt commented

2019-01-10 00:34:54 +01:00

System Information
Operating system: WIndows 10
Graphics card: nvidia gtx1080

Blender Version
Broken: 2.80, 91a155833e, 2019-01-07
(example: 2.79b release)
(example: 2.80, edbf15d3c0, blender2.8, 2018-11-28, as found on the splash screen)
Worked: (optional)

Short description of error
When using particle edit mode and groom brush, there is a lot of lag when I have a high amount of interpolated child particle display amount. This is the case even if I'm not displaying children while in particle edit mode. Lag disappears as soon as I choose particle system > children > none instead of interpolated

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

create a sphere
select sphere and go to "properties > particles" and add a particle system with emission type "hair"
go to "particle systemem > children" and click "interpolated"
Change "children > display amount" to something high (for example 250)
in the viewport, go to particle edit mode and start grooming. It is very laggy.
change to "children > none"
Try to comb in particle edit mode. The lag is gone

particle edit lag.blend

**System Information** Operating system: WIndows 10 Graphics card: nvidia gtx1080 **Blender Version** Broken: 2.80, 91a155833e59, 2019-01-07 (example: 2.79b release) (example: 2.80, edbf15d3c044, blender2.8, 2018-11-28, as found on the splash screen) Worked: (optional) **Short description of error** When using particle edit mode and groom brush, there is a lot of lag when I have a high amount of interpolated child particle display amount. This is the case even if I'm not displaying children while in particle edit mode. Lag disappears as soon as I choose particle system > children > none instead of interpolated **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible). 1. create a sphere 2. select sphere and go to "properties > particles" and add a particle system with emission type "hair" 3. go to "particle systemem > children" and click "interpolated" 4. Change "children > display amount" to something high (for example 250) 5. in the viewport, go to particle edit mode and start grooming. It is very laggy. 6. change to "children > none" 7. Try to comb in particle edit mode. The lag is gone [particle edit lag.blend](https://archive.blender.org/developer/F6234879/particle_edit_lag.blend)

Daniel Bystedt commented

2019-01-10 00:34:54 +01:00

Added subscriber: @DanielBystedt

Sebastian Parborg commented

2019-01-26 11:01:54 +01:00

Closed as duplicate of #59077

Sebastian Parborg closed this issue

2019-01-26 11:01:54 +01:00

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Particle edit lag when interpolated children display amount is high #60373