Hi,
I need to instantly swap at runtime various Houdini pregenerated pointclouds through Niagara.
I first set up a Niagara animation populated with an .hbjson Houdini pointcloud imported through UE5 Houdini/Niagara plugin. It imports and plays as it should. Setting particles’ color at runtime (through Niagara linear color user variable) also works fine.
My problem is when I try to swap an .hbjson pointcloud file by another one through an additional object user variable, at runtime. All my attempts fail and I’m struggling getting this feature to work as expected.
I attached a test UE5.44 project (only hope its not too large) : Keystroke “A” loads a red cube pointcloud, whereas “B” keystroke should swap to a green sphere, but in reality only changes color, not pointcloud !
Many thanks for your help.
Marc/Paris