Nvidia Flex Solver - Force comp not working on RTX50 GPU - 2023.12230

[hhn]

Nvidia Flex Solver with actor is working fine, however Force comp - Force Field not working.

Testing in RTX5090, Touchdesginer 2023.12230

Tried RTX4090 , Force comp is working fine.

update: Diffuse Particles also not working.

[snaut]

Hi @hhn,

thanks for reporting this, we are having a look.

cheers
Markus

[eric.b]

This might have to do with the Flex issues present on newer Nvidia driver versions, like discussed in this thread.

2023.11600: Multiple Flex Colliders (with one being a complex shape) break the simulation

Getting an issue with having multiple flex colliders. In my simulation, I have on giant box collider/actor that the fluid particles exist. Inside that box is another collider I’m using to push around the fluid particles. If I use a standard sphere everything works fine, but when I bring in an obj (in my example it’s a ship), the fluid particles no longer respect the bounds of the box and fall infinitely (but still collide with the ship on the way down) I’ve attached a tox that you can switch be…

Unfortunately, for 50 series RTX cards I don’t believe it’s possible to roll-back to an earlier working driver version.