[PLUGIN] Kawaii Physics - Simple fake physics to sway bones more easily and more cutely

[pafuhana1213]

Hi everyone!

I publish this plug-in developed for someone are struggling to adjust PhysicsAssets or AnimDynamics.

Kawaii Physics is a pseudo-physical plug-in created for Unreal Engine 4.
You can sway your hair, skirt, etc more easily and in a Kawaii way

https://github.com/pafuhana1213/KawaiiPhysics




Show case:

Features:

• Controls each bone physically while respecting the pre-physics shape
• All you need to do is add Kawaii Node to AnimGraph and adjust few parameters.
• Sway the specified bone and the bone below it according to the movement of the character.
• Much easier to set up than AnimDynamics
• You can use sphere, capsule, plane collision
• You can adjust the position, orientation and size of each collision in the animation editor viewport
• Since the bone length is maintained, even if the calculation is broken, the bone does not expand or contract.
• Uses a simple algorithm without using PhysX, so the cost is lower compared to the engine's standard physical system.

Requirement:

• UE4.22
• UE4.20, 4.21（Plugin only）
  https://github.com/pafuhana1213/Kawa...s/tag/20190702

Usage:

• Put the KawaiiPhysics folder in the project's Plugins folder
• About each parameters
  • https://github.com/pafuhana1213/Kawa...81%84%E3%81%A6

SampleMap:

• Content/KawaiiPhysicsSample/KawaiiPhysicsSample

License:

• MIT

Author:

• @pafuhana1213

Hashtag of SNS:

• #KawaiiPhysics

I made this as hobby. So I'm glad if you don't expect great support.
Finally, I hope this plugin will help you

[pafuhana1213]

Updated to v1.01

- Fixed a issue Collision's OffsetLocation doesn't use bone rotation
- Default settings of all debug display to ON
- The type of collision currently selected is also displayed on the lower left of the preview screen.

[Luis43]

Amazing! Thank you.

[Meguido]

Hey pafuhana1213, thanks for the plugin!

[pafuhana1213]

Updated to v1.1
- Changed Wind property to take into account WindDirectionalSource. So, the affinity with NvCloth and SpeedTree should have improved

[魔King]

Does the plug-in support ue4.23?

[Selentic]

This is pretty cool.

Any chance of 4.19 support?

[pafuhana1213]

Updated to v1.1.1
- Fixed wrong calculation of Bone.LengthFromRoot

I uploaded a compressed zip file with plugins from 4.21 to 4.23. Since 4.23 should continue to update, github master is still 4.22.
https://github.com/pafuhana1213/Kawa...s/tag/20190913

For versions prior to 4.21, build should succeed if you change
GEngine->ConstraintLimitMaterialPrismatic->GetRenderProxy () to
GEngine->ConstraintLimitMaterialPrismatic->GetRenderProxy (false) in KawaiiPhysicsEditMode.cpp

[Coverop]

Hey!
This looks great!
Although I have a question.
Does version 4.23 require rebuilding the engine or Is It a standalone plugin?

[Skykila]

Hey!
Does version 4.23 require rebuilding the engine or Is It a standalone plugin?

Its standalone plugin.

[AngeIV]

pafuhana1213 are you thinking to put it in ue4 store so it gets updated for everyone automatically?

[Soulast]

pafuhana1213 are you thinking to put it in ue4 store so it gets updated for everyone automatically?

It is in the description "I made this as a hobby. So I'm glad if you don't expect great support."

So...dont expect that.

[Selentic]

For versions prior to 4.21, build should succeed if you change
GEngine->ConstraintLimitMaterialPrismatic->GetRenderProxy () to
GEngine->ConstraintLimitMaterialPrismatic->GetRenderProxy (false) in KawaiiPhysicsEditMode.cpp

The file already seems to be set to that?

This is the error returned when trying to compile for 4.19.

Plugins\KawaiiPhysics\Source\KawaiiPhysicsEd\Private\AnimGraphNode_KawaiiPhysics.cpp(67): error C2664: 'NodeType *UAnimGraphNode_Base::GetActiveInstanceNode<FAnimNode_KawaiiPhysics>(UObject *) const': cannot convert argument 1 from 'UAnimInstance *' to 'UObject *'
        with
        [
            NodeType=FAnimNode_KawaiiPhysics
        ]

[LeoRocha_GameDev]

Amazing plugin!
I'm trying to use it but I'm facing some problems. When I put the AnimGraph node on a bone, the piece of a mesh of a skirt bend to inside. Have you faced this kind of problem? If not, can you help me? I sent you a private message with my discord.

[pafuhana1213]

Updated to v1.2.0
- Simple variable frame rate support. The behavior should be stable when the frame rate is lowered
Before :https://twitter.com/pafuhana1213/sta...21483672465409
After :https://twitter.com/pafuhana1213/sta...21576379166720
- display the percentage of length from the start point of each bone. Please use when adjusting the curve.


To Selentic,
I'm sorry. However, I don't want to support engine versions older than a year.
The part where the error has occurred is the debug display part, so it should be solved by commenting out or implementing it in FKawaiiPhysicsEditMode.

To LeoRocha_GameDev,
It's impossible to support all models, and I can't support each various models directly.(Time is not enough ...)
Probably, the orientation of the end bone may be incorrect. The character implementation included in the sample should be helpful.