Maniphest T54774

Hair Clumping Error
Closed, Archived
Actions

Assigned To
Bastien Montagne (mont29)
Authored By
Jeremiah Thornton (JeremiahTDK)
Apr 23 2018, 5:13 PM
Tags
  • Add-ons (Community)
Subscribers
Bastien Montagne (mont29)
Jeremiah Thornton (JeremiahTDK)
Philipp Oeser (lichtwerk)

Description

System Information
Mac OS Sierra 10.12.6 with Intel HD Graphics 6000

Blender Version
Broken: 2.79b f4dc9f9

Short description of error
The error with the hair particle system involves the clumping editor. In Blender versions of Windows,the hair particles are clean and behave like Example #1. However,for Mac OS,it's a whole different story. Instead of the slider behaving like it should,it makes the hair clump incorrectly like in Example #2. This really bothers me and I think it should be fixed.

#1

#2

Exact steps for others to reproduce the error
To fix the error presented in the file below,I would suggest fixing the coding of the hair particle system.

Hair Error.blend10 MBDownload

Related Objects

Mentioned Here
rBf4dc9f9d68bd: Fix T54360: FFMPEG bitrate not editable for all codecs

Event Timeline

Jeremiah Thornton (JeremiahTDK) created this task.Apr 23 2018, 5:13 PM
Philipp Oeser (lichtwerk) merged a task: T54773: Hair Clumping Error.Apr 24 2018, 10:06 AM
Philipp Oeser (lichtwerk) lowered the priority of this task from 90 to 30.Apr 24 2018, 10:32 AM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Are you sure you are examining the same files in Windows/Linux compared to MacOS?

Because when I open provided file on Linux, I get the same result as posted in picture #2.

The reason for some of the child particles appearing shorter than the parent particles is the Length ("length of child paths")

This was set to 0.8 in your file, and the threshold of 0.1 was causing 10% of the children being full length, the remaining 90% were only 0.8times as long as the parent particles.

If I set the Length back to 1.0 I get a result as posted in picture #1.

Is that what you meant?

Marking as incomplete for the time being...

Jeremiah Thornton (JeremiahTDK) updated the task description.Apr 24 2018, 4:13 PM
Jeremiah Thornton (JeremiahTDK) added a comment.EditedApr 24 2018, 4:17 PM

Oh,my God! I just realized that I made a mistake. I replaced the top screenshot with the correct one and I corrected the versions of Blender. Sorry for the inconvenience.

Bastien Montagne (mont29) added a subscriber: Bastien Montagne (mont29).Jul 12 2018, 11:49 AM

This might have been fixed since then (there were some threading issues in particle code), please check with a blender2.8 alpha build.

Bastien Montagne (mont29) changed the task status from Unknown Status to Unknown Status.Jul 25 2018, 9:33 PM
Bastien Montagne (mont29) claimed this task.

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