(fixed, fixed) [HOU-2020] [HOU-2021] animated visilibity on alembic

[LeoYfver]

when alembic exported from maya has animated visibility it dont render at all with vray. mantra renders correct. This one causes some issues for us now, could it be checked upon

also turning of visibility on the alembic node does nothing.

example scene and file:

https://drive.google.com/file/d/1Awg...ew?usp=sharing

Regards Alexis

[chakarov]

Reproduced and reported. Thanks LeoYfver

[LeoYfver]

Thanks for checking so fast. Is possible to update here with an eta when there is one

[bdancer]

I'm not sure how to fix this because Houdini behaves very inconsistently (at least my .460) with this abc file.
Go to geometry spreadsheet, in primitives enable "abcframe" and "abcfullvisibility" then start scrolling the time slider and select deselect SOP node - at some point abcframe will lock to 0.0 and abcfullvisibility to 0.
Toggling "Use Visibility" restores the values, but they will become invalid again...
Also abcinfo shows me:

TimeSample[0] 1 samples: t0=0 (frame 0.0 @ 24fps)
TimeSample[1] 2 samples: t0=40 (frame 960.0 @ 24fps)

Which I'm not sure how is remapped into your render frame range...

So, may be this should be reported to SideFX first...

[LeoYfver]

you are right, i get the same problem actually on 460. havent tried on other build. This should be reported but i feel that vray should still render when abcfullvisibility is 1 and be consistent with the geomtry spreadsheet.

[bdancer]

It probably should, but I won't be able to fix this until the abcframe has correct time...

[LeoYfver]

constant always becomes 0, i guess because its no animation on it so i dont think that one is an issue.

[LeoYfver]

hello!

even if there are other issues could the abcfullvisibility be fixed? its going to work for us in our case

[bdancer]

We are not using this attribute and it's not possible because this attribute also becomes invalid in the case I've described.

[LeoYfver]

not sure if i follow. I understand you cant to anything about the locking but it can still read the alembicfullvisiblity as it says in the spreadsheet. Because right now mantra renders differently from vray. So when alembicfullbisiblity is 1 mantra renders the alembic while vray dont.

[bdancer]

You'll scroll timeline, alembicfullvisiblity becomes invalid and becomes 0 for all objects. That's why I don't want to workaround this issue this way.

[LeoYfver]

Well all our assets like this dont get invalid and they still dont render when the alembicfullvisiblity is 1 when its keyframed. So i dont understand why 1 issue cant be fixed just because another exists. Just trying to be clear maybe i misunderstand how those two issues are connected.

[bdancer]

Ok, I'll implement support for alembicfullvisiblity intrinsic.

[LeoYfver]

thanks! sorry for being stubborn :P

[chakarov]

Hello LeoYfver , alembic with animated visibility is now working.