(Fixed) [HOU-2530] alembic moblur Issue (urgent)

[LeoYfver]

Hello! we export alembics with intervals basically frame 1001-1002 and render the as $F to be able to get motionblur without taxing memory.

Now the motionblur on those are broken. Description in the file.

https://drive.google.com/file/d/1vF2...ew?usp=sharing

Regards Alexis

houdini 18.0.499
linux centos7

V-Ray for Houdini number:12071 hash:6fe7ab3 from 15 Apr 2021 02:02 (build number:12071)
V-Ray Core 5.00.50 [fcc821e3] from 31 Mar 2021

[Gosho.Genchev]

Hey Alexis,

Andrei has fixed the issue - we're doing some internal work to add support for Python3 Houdini builds thus the nightlies are not running at the moment. We'll start them again by the end of the week - I hope that works for you as well.

Best regards!

[LeoYfver]

thats should work, thanks!

[LeoYfver]

vray_adv_51003_houdini18.0.499_8fbcf4b

tried latest nightly and this wasnt fixed

Regards Alexis

[Gosho.Genchev]

Hey Alexis,

I've verified this working on both Python2 (18.0.499) and Python3 (18.5.532) builds for Windows and Linux. Could you please check the Main Menu -> V-Ray -> About V-Ray to make sure the correct build is loaded? I'm out of ideas for troubleshooting.



Best regards!

[LeoYfver]

Gosho.Genchev seems to work for me in 25 fps but not in 30 fps. could that be the reason?

24 fps also seem to be broken which is the one we use right now.

[Gosho.Genchev]

Hey Alexis,

Could you please check the following 2 Houdini files? I suspect you're exporing the alembics at 24 fps, then changing the frame rate to 30 fps which is what's causing the issue now.
The 2 files below are set up to 24fps and 30fps, respectively. I moved the keyframes and updated the alembic export paths so the alembics don't overwrite each other. Mantra and V-Ray are giving me the same result (and also the same lack of moblur when switching the FPS after export).

Best regards!

[LeoYfver]

tried you 24 fps file. still the same issue

houdini 18.0.499

centos7

V-Ray for Houdini number:12242 hash:8fbcf4b from 27 Apr 2021 01:57 (build number:12242)
V-Ray Core 5.10.03 [3f470886] from 20 Apr 2021