Flex solver instance radius

General TouchDesigner Discussion
1

Hi there,

I’m not quite sure if this is simply not implemented, a bug or not possible at all with the Flex API.

But I’d like to be able to assign different sizes to particles. The typical workflow uses the instancing tab for assigning starting positions, doing the same for scale though does not translate into the physics.

image
image1619×1254 176 KB

Does anyone have any insights on this? I also checked out Vinzent’s FlexCHOP but that also doesn’t seem to accept various particle sizes.

2

This is a limitation of the Flex API. All particles in the simulation share the same radius, which can be set using the parameter on Flex Solver COMP.

https://docs.nvidia.com/gameworks/content/gameworkslibrary/physx/flex/manual.html#radius