Hello

! first of all
! it might be a VrayProxy or 3dsMax alembic issue (artifacts are visible in both cases though)
! as nothing is visible in Houdini editor

Having an issue almost every time I have animated boolean geometry (substracted usually)
exported to alembic (hd5 agawa with differetn settings) on multiple projects

1) some geometry does not exist at the beginning of the animation (boolean started later)
but it's already visible from 1st frame

2) some geo stays visible till the end after it's being subtracted by another geo


Thank you!
Andrew

maybe first export to .bgeo files
now check if everything is fine by reading the .bgeos
this way you can be sure its not an issue that is present anyway
now convert/export .bgeo to alembic


regards

Olaf

In my experience, the alembic format doesn't support dynamic geometry well. A workaround I have employed in the past is to place a persistent infinitesimal cube behind the camera and combine it with the geometry before export. Make sure it has the same shape name/hierarchy as the mesh that is transient.

Olaf, thank you!

I've exported .bgeo sequence,
imported back into another houdini instance & exported again as alembic animation
with the same result;

Static frames works fine though - no signs of glitchy geometry so far.
Looks like the problem is in alembic export / 3dsmax import.
Already sent src files to Chaos group support.



Jonathan,

Your trick actually worked!
I've used boolean union (tiny cube & animated geo)
That saves a lot of my footage!

Thank you!


PS
There's no Houdini Engine for Max so far, but that would definitely help.
Probably in 2020

Regarding houdini engine for max, it was shown in the teaser for h17