Last few days I’ve been trying to pass the RBD sim to Niagara and had few issues:
1 - I didn’t find a good solution to transfer mesh orientation. I had to generate a fake N from orient inside Houdini and export both orient and N, then I used this normal as Look at direction in “orient mesh to vector” module + orient as *quaternion override *+ N as reference axis vector + 1 *o**verride incoming orientation. *This feels like an overly complex answer to a simple rotation question.
2 - When I try to convert emitter to GPU sim, I get an “invalid type for index in NiagaraEmitterInstance.ush”
3 - After the first frame I have a weird position offset on each piece.
I really hope to see a solution for this two problems during the stream