Animated BoneAttachment3D Performance Impact

[fabius]

Tested versions

• Reproducible in 4.3.beta1, 4.2-stable

System information

Godot v4.3.beta1 - NixOS #1-NixOS SMP PREEMPT_DYNAMIC Fri May 17 10:18:09 UTC 2024 - Wayland - Vulkan (Forward+) - dedicated AMD Radeon RX 7900 XTX () - AMD Ryzen 5 7600X 6-Core Processor (12 Threads)

Issue description

Spawning multiple animated Skeleton3D nodes with BoneAttachment3D nodes inside, performance drops way more than it should. (about 50-80% on my rig with 20 skeletons)
I'd expect the FPS impact to be less significant than that.

Steps to reproduce

• have multiple characters with BoneAttachment3D nodes inside their skeletons
• free attachments (see MRP)
• watch FPS increase

Minimal reproduction project (MRP)

https://github.com/fabius/tps-demo

press space to free all attachments

[AThousandShips]

What 4.3 hash are you using? There's no 4.3-stable yet unless you're a time traveller 😉 please add the sha of the commit you're using (or a pre-release if you're using one)

[fabius]

whoops, sorry, meant to say 4.3 beta. Edited the issue

[TokageItLab]

I believe that 4.3 is somewhat better than 4.2 by #90575, but I have not yet been able to get proper measurements. We are in the process of planning a benchmake for animation performance.