Maniphest T78694

Hair Particles Do Not show in Viewport or Renders when Hair Shape Type under the Render Properties Tab is Set to Strip
Closed, Resolved
Actions

Assigned To
Philipp Oeser (lichtwerk)
Authored By
Muhammad Ahmed (awo)
Jul 7 2020, 7:18 AM
Tags
  • BF Blender
  • EEVEE & Viewport
Subscribers
Haziq Hazim (Haziqs)
Muhammad Ahmed (awo)
Philipp Oeser (lichtwerk)
spacesheep001 (spacesheep011)

Description

System Information
Operating system: Windows 10
Graphics card: AMD Radeon R5 M335

Blender Version
Broken: version: 2.83.1, branch: master, commit date: 2020-06-25 09:47, hash: 8289fc688b3e, type: Release build date: 2020-06-25, 08:30:56
Worked: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f54494e, type: build date: 2019-07-29, 09:44 AM

Short description of error
When the Hair Shape Type is set to Strip instead of Strand, Hair Particles disappear in the Viewport and also Do Not show in the Renders. The Hair Shape Type Option is located in the Render Properties Tab when EEVEE is selected as the render engine. It functions correctly in Blender version 2.80 but not later versions. I have checked multiple versions from 2.81 to 2.83.1, but they seem to have this problem. Thank You for reviewing my bug report.

Exact steps for others to reproduce the error
I have attached an image showing the result when Strand is selected as the Hair Shape Type and Also when Strip is selected. Thank You

1- Create a plane.
2- Add Hair Particle System.
3- Navigate to Render Properties Tab
4- Under Hair menu, select Strip for the Hair Shape Type
5- The hair particles disappear.
6- Render Image, Hair particles do not show in render

Thank You.


HairShapeTypeBug.blend648 KBDownload

Related Objects

Mentioned Here
T71916: (Blender 2.81) Hair particles disappear in strip mode
rBf6cb5f54494e: Version bump to 2.80 final release
rB8289fc688b3e: Revert "Fix T77460: Easy to create cyclic dependencies in collections and crash…

Event Timeline

Muhammad Ahmed (awo) created this task.Jul 7 2020, 7:18 AM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Needs Information from User.Jul 7 2020, 11:19 AM
Philipp Oeser (lichtwerk) added a project: EEVEE & Viewport.
Philipp Oeser (lichtwerk) added subscribers: spacesheep001 (spacesheep011), Philipp Oeser (lichtwerk).

I cannot reproduce this here

System Information
Operating system: Linux-5.6.19-300.fc32.x86_64-x86_64-with-fedora-32-Thirty_Two 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100
version: 2.83.1, branch: master, commit date: 2020-06-25 09:47, hash: rB8289fc688b3e

This has somewhat been reported before, see T71916: (Blender 2.81) Hair particles disappear in strip mode

In T71916#946533, @spacesheep001 (spacesheep011) wrote:

i feel dumb, i had this exact same problem, had the exact same graphics card, and the exact same issues as in this post: it used to work for me in 2.8 but no longer after 2.81, all i had to do to fix this for good, was to update my graphics card but i never thought of it until i read about it here, thank u all! i appreciate what u do.

edit:
and i guess yes, resolved.

So please check (and report back) if upgrading your GPU drivers helps, see here for more information: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

Muhammad Ahmed (awo) added a comment.Jul 7 2020, 5:45 PM

Thank You for replying. It works on Fedora, but in Windows I have updated both the intel and dedicated graphics drivers, but the problem still persists. The problem may be with my installation of windows. Thank You for the information, I know that it is probably a problem that may be exclusive to me so I will see if changing any settings or resetting my windows will work.

Muhammad Ahmed (awo) added a comment.Jul 9 2020, 5:10 PM

The problem is fixed. Thank You for your help. Updating drivers from Dell's website doesn't work, nor updating from Device Manager. But updating from AMDs website does. The drivers and software they provide work perfectly. I feel silly for posting this problem and taking up your time. But honestly, Thanks for your advice!! I'll be sure to go through these steps before posting any future potential bug I may find.

Philipp Oeser (lichtwerk) closed this task as Resolved.Jul 9 2020, 5:28 PM
Philipp Oeser (lichtwerk) claimed this task.

Thx getting back! Closing then...

Haziq Hazim (Haziqs) added a subscriber: Haziq Hazim (Haziqs).Nov 12 2021, 3:25 AM

hmm