[Studio Beta] Avatar Joint Upgrade: Enabling Physically-Simulated Characters

[Krant19worlddv (Krant_dv)]

is Ragdoll humanoidstate will be un deprecated ?

[TheWeirdMasterOfLoL (lDOT)]

holy peak
This a huge update, with perfect timing too. Was just about to start a project that’s going to use physically simulated anims like this.

[Homeomorph (Joe)]

There’s little to no impact on performance.

• While the AnimationConstraints are in kinematic mode the performance is actually slightly better than Motor6Ds. The additional instances will not add any runtime cost in kinematic mode.
• When physically simulated (IsKinematic is false), the cost is the same as any other traditionally made ragdoll character. Generally, this is fine on all platforms as each client simulates only their own character.
• The additional instances only increase the average avatar’s memory usage by 2%.
• Our tests showed this has no impact on join times or out of memory crashes.

[PeZsmistic]

YEEEEESSS YES YES YES LETS GO I’ve been waiting for this since RDC I am so excited. This is going to drive all of my characters ASAP, so much emergent gameplay comes from physics toys.

What’s the timeline for being able to turn this on in live? I want this ASAP.

[ZacAttackk]

Emergent gameplay designer chads keep winning

[Noble_Draconian]

@Homeomorph
Tangentially related:

Since the avatar constraints use the motor6d’s positions, that means some avatar packages with incorrect / broken motor6d’s will have physics problems when animating. With the package I use on my avatar, various limbs will straight up detach from the body with some types of animations!

I filed a bug report about this 2 years ago, but I haven’t been able to get it actioned on. Now that joints are going to become physically simulated instead of CFramed, would it be possible to get this looked at?

Dragon Bundles have incorrect hand & ankle motor6D positions, breaking animations & IK functionality

Reproduction Steps Currently, as of 10/2/22, the crimson claw, emerald claw, frostooth the frozen and ancient dragon bundles all have broken / incorrect ankle motor6D positions. This causes a wide variety of issues, both minor and major. Here’s an example of an avatar bundle (gothic gargyle) with correct ankle motor6D positions. Observe that the feet rotate in the animation editor as expected: Here’s an example of the crimson claw’s incorrect ankle motor6D positions. Observe that t…

[Noble_Draconian]

@Homeomorph

Setting C0, C1, Part0, or Part1 properties will error. AnimationConstraints use Attachments instead.

Question about niche humanoid behavior. In our platformer game, we directly modify the humanoid rootpart’s root motor6d C0 rotation every frame to rotate based on the slope the avatar is standing on. This essentially rotates the avatar on sloped surfaces, making them stay “flat” relative to what they are standing on. One thing I’ve observed with this behavior, is that doing this does not affect physics in any way. The avatar visually rotates, but does not physically rotate. Jumping etc still works as expected as if the avatar was upright.

Will switching to these new animation constraints change that behavior at all? If so, how can we get that effect back where we visually rotate the character, without causing all kinds of physics sideeffects? The slope tilt is mean to just be a visual polish, not something that impacts the avatar’s ability to move.

[sozzly]

This is great! Opens up many possibilities. Like this floppy guy:

[xyrafrost]

Self View completely breaks with this feature enabled lol

[drkamil]

This is amazing!
As smooth physics interpolation was confirmed in the test game, will it include some kind of physics network prediction?

[HKcat5100 (HKcat)]

This unironically the best physics based animation system I’ve seen in any game engine.

[cccrt46 (Green)]

I’m already liking this update!

[Krant19worlddv (Krant_dv)]

this is very cool ! , W update Roblox !

[SwitchedDreams]

@Homeomorph

We’re open to adding support in the future.

Please do, it is a quality of life update for R6 that would greatly improve experiences that use it.

[BlueDeveloper24]

Is the replicating towards the client? because sadly bones dont replicate from server to client i hope this one does

[keyre124 (JarateIsCool)]

@Homeomorph

Currently, no. R6 is structurally different from R15. We’re open to adding support in the future.

REALLY???

[cultclassiic (Cosmandra)]

Amazing update, will be using this once it’s out of beta!!

[Bonusizawesome (Olive)]

THANK YOU!
Now we just need to be able to resize parts in animations!
One of these days…

[Linux_55 (Dughoo)]

@Homeomorph

BallSocketConstraints

The BallSocketConstraints provide a foundation for physics-based interactions, enabling realistic ragdoll effects. The joints default to human-like limits, but they can be fully customized or disabled entirely.

In the example provided, a character entering a ragdoll state plays a defensive curl animation. The AnimationConstraints lack the strength to hold the pose, resulting in natural movement.

This is great and all, but are we ever getting ragdolls for skinned meshes without having to go through a chore like method by dividing the meshes in 15 parts (which already ruins some details)?

[C_Corpze (Corpze_TheDeadestOne)]

No wayyyyyyy! Unreal Engine has had this feature for ages and I was WAITING for the day where Roblox would hopefully get it.

This literally saves me having to write an entire module for it, this is AMAZING!

This will make ragdolls and other things 100x better and simpler to make while also allowing new innovative ideas that combine physics and animations in new and unique ways for all sorts of purposes.