Hair display error in blender 3.0.1 #95753

New Issue

Evgeny · 2022-02-13T19:26:55+01:00

Evgeny commented

2022-02-13 19:26:55 +01:00

Hello, when I add new hair in the Particle Edit mode. Then the hair does not come from the mesh itself, but as if it weighs above it. What's the problem, maybe I'm doing something wrong?

{F12865495}System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: AMD Radeon R7 200 Series ATI Technologies Inc. 4.5.148202 Core Profile Context 21.3.1 27.20.15003.1004

Blender Version
Broken: version: 3.0.1, branch: master, commit date: 2022-01-25 17:19, hash: dc2d180181
Worked: (newest version of Blender that worked as expected)

Short description of error
[Please fill out a short description of the error here]

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

Hello, when I add new hair in the Particle Edit mode. Then the hair does not come from the mesh itself, but as if it weighs above it. What's the problem, maybe I'm doing something wrong? {[F12865495](https://archive.blender.org/developer/F12865495/Безымянный.png)}**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: AMD Radeon R7 200 Series ATI Technologies Inc. 4.5.148202 Core Profile Context 21.3.1 27.20.15003.1004 **Blender Version** Broken: version: 3.0.1, branch: master, commit date: 2022-01-25 17:19, hash: `dc2d180181` Worked: (newest version of Blender that worked as expected) **Short description of error** [Please fill out a short description of the error here] **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)]

Evgeny commented

2022-02-13 19:26:55 +01:00

Added subscriber: @Evgen-4

Pratik Borhade commented

2022-02-14 07:19:22 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-02-14 07:19:22 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Pratik Borhade commented

2022-02-14 07:19:22 +01:00

Thanks for the report. Please provide .blend file to test the case.

Diogo Valadares Reis dos Santos commented

2022-02-14 15:27:45 +01:00

Added subscriber: @Diogo_Valadares

Diogo Valadares Reis dos Santos commented

2022-02-14 15:27:45 +01:00

Did you activate B-spline on the hair? this usually is what disconnects the hair from the surface visually.

Did you activate B-spline on the hair? this usually is what disconnects the hair from the surface visually. ![image.png](https://archive.blender.org/developer/F12866760/image.png)

Evgeny commented

2022-02-14 19:20:02 +01:00

In #95753#1307586, @Diogo_Valadares wrote:
Did you activate B-spline on the hair? this usually is what disconnects the hair from the surface visually.

Yes, Particle Edit mode checked this box, and then drew the hair. Should I have done this before the Particle Edit mode or not in the mode itself?
Explain why B-spline is needed then, if when it is activated, the hair particles come off and weigh over the mesh. I watched different videos and there B-spline was made by the number 5-7. Or is this function already useless in version 3?

> In #95753#1307586, @Diogo_Valadares wrote: > Did you activate B-spline on the hair? this usually is what disconnects the hair from the surface visually. > ![image.png](https://archive.blender.org/developer/F12866760/image.png) Yes, Particle Edit mode checked this box, and then drew the hair. Should I have done this before the Particle Edit mode or not in the mode itself? Explain why B-spline is needed then, if when it is activated, the hair particles come off and weigh over the mesh. I watched different videos and there B-spline was made by the number 5-7. Or is this function already useless in version 3?

Diogo Valadares Reis dos Santos commented

2022-02-14 19:57:20 +01:00

This is a visual effect of the b-spline, but I'm not sure if this is intended behavior of this option. I noticed this sometime ago but never reported.

Yes, Particle Edit mode checked this box, and then drew the hair. Should I have done this before the Particle Edit mode or not in the mode itself?

just turning b-spline off should "connect" it. if not, please, share the .blend file so it can be checked.

This is a visual effect of the b-spline, but I'm not sure if this is intended behavior of this option. I noticed this sometime ago but never reported. >Yes, Particle Edit mode checked this box, and then drew the hair. Should I have done this before the Particle Edit mode or not in the mode itself? just turning b-spline off should "connect" it. if not, please, share the .blend file so it can be checked.

Evgeny commented

2022-02-14 20:09:53 +01:00

In #95753#1307750, @Diogo_Valadares wrote:
This is a visual effect of the b-spline, but I'm not sure if this is intended behavior of this option. I noticed this sometime ago but never reported.

Yes, Particle Edit mode checked this box, and then drew the hair. Should I have done this before the Particle Edit mode or not in the mode itself?

just turning b-spline off should "connect" it. if not, please, share the .blend file so it can be checked.

volosy_proekt_blend.blend
Here is my project, I apologize for the naked body of the mesh. See what I'm doing wrong, give advice or intsructions

> In #95753#1307750, @Diogo_Valadares wrote: > This is a visual effect of the b-spline, but I'm not sure if this is intended behavior of this option. I noticed this sometime ago but never reported. > >>Yes, Particle Edit mode checked this box, and then drew the hair. Should I have done this before the Particle Edit mode or not in the mode itself? > > just turning b-spline off should "connect" it. if not, please, share the .blend file so it can be checked. [volosy_proekt_blend.blend](https://archive.blender.org/developer/F12867192/volosy_proekt_blend.blend) Here is my project, I apologize for the naked body of the mesh. See what I'm doing wrong, give advice or intsructions

Diogo Valadares Reis dos Santos commented

2022-02-14 20:16:46 +01:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Diogo Valadares Reis dos Santos commented

2022-02-14 20:16:46 +01:00

Yes, the problem is because of the B-spline. but I'm not sure if this is intended behavior.

|![image.png](https://archive.blender.org/developer/F12867204/image.png)|![image.png](https://archive.blender.org/developer/F12867206/image.png)| | -- | -- | Yes, the problem is because of the B-spline. but I'm not sure if this is intended behavior.

Evgeny commented

2022-02-14 20:29:02 +01:00

In #95753#1307754, @Diogo_Valadares wrote:
|||

Yes, the problem is because of the B-spline. but I'm not sure if this is intended behavior.

I also noticed that if you change the key when using this function, then the hair falls into place. For example, there was a key of 10, and change to 20 with the help of hair selection, then right-click and change the key. Or edit each hair manually when unchecking the root position.
Tell me, what should I do in such cases, not to use the B-slide at all, or how would I change the keys at my discretion when using it?

> In #95753#1307754, @Diogo_Valadares wrote: > |![image.png](https://archive.blender.org/developer/F12867204/image.png)|![image.png](https://archive.blender.org/developer/F12867206/image.png)| > > Yes, the problem is because of the B-spline. but I'm not sure if this is intended behavior. I also noticed that if you change the key when using this function, then the hair falls into place. For example, there was a key of 10, and change to 20 with the help of hair selection, then right-click and change the key. Or edit each hair manually when unchecking the root position. Tell me, what should I do in such cases, not to use the B-slide at all, or how would I change the keys at my discretion when using it?

Philipp Oeser commented

2023-02-14 13:04:20 +01:00

If we move this out of the triaging queue (by changing status label to Needs Information from Developers), this needs to be the responsibility of a module (so a Module label must be added)

If we move this out of the triaging queue (by changing status label to `Needs Information from Developers`), this needs to be the responsibility of a module (so a `Module` label must be added)

Philipp Oeser added the

Module

Nodes & Physics

label 2023-02-14 13:04:39 +01:00

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Hair display error in blender 3.0.1 #95753