Suggestion / Idea Changing Medium Parameters for Cloth Physics in ObiCloth: From Air to Water

[josemendez]

Hello everyone,

I have been working on a project in Unity that requires me to create a realistic simulation of a trawler net in water. To achieve this, I've successfully defined a proper mesh for my trawler net and utilized the ObiCloth plugin to apply cloth physics, which has produced impressive results thus far. However, I've encountered an issue that I'm hoping to get some guidance on.

The default settings of the ObiCloth plugin seems to imply that the cloth physics operate in air. Given that my simulation takes place underwater, I would like the physics to more accurately reflect this environment. Therefore, my question is: is there a way to modify the medium parameters in ObiCloth such that the cloth physics act as if they are operating in water rather than in air?

If this is possible, could someone please provide guidance on how to adjust these parameters appropriately to mimic water physics? If it's not possible within the scope of ObiCloth, does anyone have recommendations for other plugins or methods I could use to achieve this effect?

I appreciate any insight you can offer. Thank you in advance for your assistance.

Link from current result: https://www.youtube.com/watch?v=ISbrbxXkut4

Best regards,
Jacob Woord

Hi Jacob,

The medium in which the cloth exists isn't simulated at all, neither air nor water.

However, some aerodynamic effects was well as isotropic velocity damping are simulated.
You can independently adjust the drag an lift coefficient of aerodynamic constraints:
http://obi.virtualmethodstudio.com/manua...amics.html

You can also adjust velocity damping, which should help sell the effect that the cloth is underwater. See the "damping" parameter of the solver:
http://obi.virtualmethodstudio.com/manua...olver.html

kind regards,