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Indisponible Anonyme (aplgn)
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Jan 23 2021, 9:12 PM (4 w, 5 d)

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Thu, Feb 11

Indisponible Anonyme (aplgn) added a comment to T79711: Mantaflow: OpenVDB glitches due to Adaptive Domain.

I think this is because the center of the object is to one side and it scales in relation to that center

Thu, Feb 11, 4:05 PM · Nodes & Physics, BF Blender

Fri, Jan 29

Indisponible Anonyme (aplgn) added a comment to T85184: Fluid modifier affects particle hair (even when set to None).

The force field is affecting the groom when hair dynamics are not enabled and when they are they are affected when the timeline plays. Is that by design?

This is the same as T71192: Forcefield impact on hair without hair dynamics checked and T55172: Hair is dynamic even it is disabled.
That is not considered a bug.

Well and what about the fluid modifier that changes the hairstyle, only in edit mode while removed ?

Well thats also not a bug. The modifier is before the particle hair and changes the geometry of the mesh (checking modifier stack in the hair particle setting should prevent that). When you remove it the hair has a different mesh and will change the groom depending on it. Its not as intuitive as it should like the force field changing the hair for no reason..

When its not a bug than this can be closed because thats the reason in this file why its changing and the modifier stack order but thats also not a bug. @Philipp Oeser (lichtwerk)

Fri, Jan 29, 5:20 PM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) added a comment to T85184: Fluid modifier affects particle hair (even when set to None).

The force field is affecting the groom when hair dynamics are not enabled and when they are they are affected when the timeline plays. Is that by design?

This is the same as T71192: Forcefield impact on hair without hair dynamics checked and T55172: Hair is dynamic even it is disabled.
That is not considered a bug.

Fri, Jan 29, 5:07 PM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) added a comment to T85184: Fluid modifier affects particle hair (even when set to None).

You have a lot of simulations going. It a matter of stack in my test but i am not certain what you want to achieve with the fluid sims and so.

The hair system is out of support and will hopefully replaced soon..

In my test and like i said its quite a complex file you can disable the force field on the other object and re-enable them after you disabled the hair sims. All your hair grooms dont have the use modifier stack enabled activated, in such a file as yours is pretty important so the groom takes the stack during backing. One of these is the mistake. The bad thing is that when you enable use modifier stack you need to regroom the hair.. Your forcefield might also be too strong

But why the groom changes when you disable the hair Dynamics is for some reason it gets affected by the forcefields. That can be checked with a fresh file and seeing if its really the case. Yep it is.. So might be a bug..

The force field is affecting the groom when hair dynamics are not enabled and when they are they are affected when the timeline plays. Is that by design?

Simple steps to reproduce it

  1. New Fresh scene.
  2. Add particle system to default cube and change it to hair.
  3. Add a force field force and see that it changes the hair.
  4. enable hair dynamics and disable it to see the change.

here is the file with the steps above.

Fri, Jan 29, 4:27 PM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) added a comment to T85184: Fluid modifier affects particle hair (even when set to None).

Please add blender version used, and steps to test the bug on other systems.

Fri, Jan 29, 11:22 AM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) updated the task description for T85184: Fluid modifier affects particle hair (even when set to None).
Fri, Jan 29, 11:21 AM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) added a comment to T85184: Fluid modifier affects particle hair (even when set to None).

Bug tracker is not for user support, nor is there a concept of upvoting here. Please see Question/Answer sites among https://www.blender.org/community/

Fri, Jan 29, 10:38 AM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) updated the task description for T85184: Fluid modifier affects particle hair (even when set to None).
Fri, Jan 29, 10:37 AM · BF Blender, Nodes & Physics, Modifiers, Physics
Indisponible Anonyme (aplgn) created T85184: Fluid modifier affects particle hair (even when set to None).
Fri, Jan 29, 8:51 AM · BF Blender, Nodes & Physics, Modifiers, Physics

Jan 23 2021

Indisponible Anonyme (aplgn) added a comment to T74559: Adaptive Domain creates lines in smoke.

Hello, you mean this is still not solved right ?

Jan 23 2021, 9:15 PM · Nodes & Physics, BF Blender