Phantom meshes in Alembic Export

[SteveDeeGreen]

Hi,

I already posted this on the fb page, but thought it better to re-post here to see if there's a solution to getting alembic working properly with Embergen



I was trying out ABC files from Tyflow and noticed that I was getting phantom geometry in the alembic

The same thing happens if you load the file into blender (so not specifically embergen)

It's just a default physx flow


The first attempt was using node per particle, which showed up the phantom geometry in blender and embergen at the base of the tyflow

The second I tried exporting it as a single mesh, which worked for blender, but in embergen it seemed to trash the cubes in the flow and just gave me a single flattened triangle falling


I haven't tried any of the other settings, but can't really see anything obvious which might fix it - have also passed on the second file to the Embergen devs, as that works in blender but not in Embergen

Thanks

Steve

[tyFlow]

This is something that can only be addressed by the EmberGen guys....tyFlow uses the standard Alembic visibility property on pre-born particles, in order to hide them before they are born. If they appear in EmberGen/Blender then those Alembic importers are ignoring that property. Nothing I can do about it on my side (I could potentially scale pre-born particles to zero, but there's no guarantee that Embergen wouldn't still attempt to emit from zero-scale geometry)...the visibility property is the standard way to 'hide' Alembic elements before they're meant to be seen, and it works in Max, VRay, Unreal, etc.

[SteveDeeGreen]

Thanks,

I'll forward it on to them, see if there's anything that can be done their end