Obi Official Forum
Stable Cosserat Rods - Printable Version

+- Obi Official Forum (https://obi.virtualmethodstudio.com/forum)
+-- Forum: Obi Users Category (https://obi.virtualmethodstudio.com/forum/forum-1.html)
+--- Forum: Obi Rope (https://obi.virtualmethodstudio.com/forum/forum-4.html)
+--- Thread: Stable Cosserat Rods (/thread-4636.html)



Stable Cosserat Rods - Qriva0 - 27-07-2026

Hi! Are there plans to improve certain simulation aspects using findings from this article (Stable Cosserat Rods Siggraph 2025)?
https://jerryhsu.io/wp-content/uploads/2025/05/Sig25__Stable_Cosserat_Rods.pdf


RE: Stable Cosserat Rods - josemendez - 27-07-2026

(27-07-2026, 02:46 PM)Qriva0 Wrote: Hi! Are there plans to improve certain simulation aspects using findings from this article (Stable Cosserat Rods Siggraph 2025)?
https://jerryhsu.io/wp-content/uploads/2025/05/Sig25__Stable_Cosserat_Rods.pdf

Hi!

Stable cosserat rods require the underlying engine to use (A)VBD instead of (X)PBD, this is an engine-wide paradigm change. We've already considered using AVBD in the past and have a development Obi version that uses it for some constraints, but AVBD has some issues compared to XPBD that prevent us from fully embracing it - namely, parameter tuning isn't nearly as intuitive or robust as in XPBD. See:




RE: Stable Cosserat Rods - Qriva0 - 28-07-2026

Great presentation!

Quite sad there are so many issiues, especially V-shape cloth behaviour, but well...
Thanks, have a great day!