Slow Particle/Hair Editing in Blender 2.80 Release Candidate #66850

New Issue

Alexander · 2019-07-13T10:56:18+02:00

Alexander commented

2019-07-13 10:56:18 +02:00

Hello,

here is my report:

System Information
Operating system: Windwos 10 Pro 64bit Build 17763
Graphics card: 8GB Nvidia Quadro RTX 4000
Processor: AMD Ryzen Threadripper 2950X
RAM: 64GB DDR4 2900MHZ

Blender Version
Blender 2.80 Release Candidate

Short description of error
The performance for editing Hairs in Blender decreased from Version 2.79b to 2.80 Release Candidate:
I first found out about this problem when I tried out one of my created characters inside one of the Blender 2.80 beta versions: While the viewport performance for showing Hair increased, the performance for editing Hair was significantly slower (too slow to work with).

Exact steps for others to reproduce the error
I now created two files in Blender 2.79b and the Release Canditate of Blender 2.80 with the same settings:

Standard-scene with a 1.5m radius sphere;
Segments and rings to 64;
Default prinzipaled shader;
3000 Hair with 0.2m length and interpolated Children with a Display Amount of 50

If the Scenes are opened one can directly begin to comb the hair. At my PC-Sytem the performance for Blender 2.79b is faster during the editing.

Greetings,
Keks0943

2019_07_13 - DemoHairGroomingPerformance - Blender 2_8 Release Candidate.blend
2019_07_13 - DemoHairGroomingPerformance - Blender 2_79b.blend

Hello, here is my report: **System Information** Operating system: Windwos 10 Pro 64bit Build 17763 Graphics card: 8GB Nvidia Quadro RTX 4000 Processor: AMD Ryzen Threadripper 2950X RAM: 64GB DDR4 2900MHZ **Blender Version** Blender 2.80 Release Candidate **Short description of error** The performance for editing Hairs in Blender decreased from Version 2.79b to 2.80 Release Candidate: I first found out about this problem when I tried out one of my created characters inside one of the Blender 2.80 beta versions: While the viewport performance for showing Hair increased, the performance for editing Hair was significantly slower (too slow to work with). **Exact steps for others to reproduce the error** I now created two files in Blender 2.79b and the Release Canditate of Blender 2.80 with the same settings: - Standard-scene with a 1.5m radius sphere; - Segments and rings to 64; - Default prinzipaled shader; - 3000 Hair with 0.2m length and interpolated Children with a Display Amount of 50 If the Scenes are opened one can directly begin to comb the hair. At my PC-Sytem the performance for Blender 2.79b is faster during the editing. Greetings, Keks0943 [2019_07_13 - DemoHairGroomingPerformance - Blender 2_8 Release Candidate.blend](https://archive.blender.org/developer/F7605109/2019_07_13_-_DemoHairGroomingPerformance_-_Blender_2_8_Release_Candidate.blend) [2019_07_13 - DemoHairGroomingPerformance - Blender 2_79b.blend](https://archive.blender.org/developer/F7605102/2019_07_13_-_DemoHairGroomingPerformance_-_Blender_2_79b.blend)

Alexander commented

2019-07-13 10:56:18 +02:00

Added subscriber: @Joeeuro

Brecht Van Lommel commented

2019-07-14 19:17:09 +02:00

Closed as duplicate of #59077

Brecht Van Lommel closed this issue

2019-07-14 19:17:09 +02:00

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Slow Particle/Hair Editing in Blender 2.80 Release Candidate #66850