Why is Collider_01 not affected by particles?
Hi @strongeffect.uz, currently the Particles Simulate node only reads the first collider from the Read Prims bundle.
These nodes are mostly designed as examples of how you can create your own simulation nodes, and I am not sure when we will update the nodes to support more complex inputs sorry.
Hi Milesmacklin,
If I would like to use partcile simulation using warp to collide with multiple objects, i.e., all joints of a robot. How should I do to calculate the collision between particles and all joints? Should I use warp in python API to conduct the calculation? If so, is it possible to give some brief idea or sample codes on doing that.
Thanks a lot!
I wrote a python code that merges 2 or more meshes and passes that merged mesh as a collider.
But this is a big mistake for physics
Hi,
As @milesmacklin mentioned, these nodes and scenes are mostly meant as example, so we’re currently not planning on supporting multiple colliders as input for the particle simulation node.
However, here’s an example on how to implement a node that does merge multiple meshes into one, before using that as input collider.
mesh-merge.zip (27.0 KB)
See the following documentation for more info on how to create custom nodes and have them discovered by OmniGraph: Omnigraph: Custom Python Nodes — Isaac Sim 4.2.0 (OLD).
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Thanks lot for your feedback. We will have a try.
We have tried to merge meshes in python code to use an articulation robot to interact with particles, but it fails to correctly do the simulation. Merging meshes in a static way is good, but when all the meshes start to move, everything stuck. (I think there are something wrong with our code, we are still trying to figure out)
I will try with the OmniGraph first to see if this helps. Thanks again !