Retiming lost in VDB conversion

Technical
#1

Curious if there is a simple checkbox somewhere that Im missing.

I have a steam simulation adjusted to 60% speed. Im baking that out to a vdb using the bcftovdb tool which works great except it does not retain the speed change.

Anyone have any ideas how to bake out a vdb with TFD timing adjustments?

Thanks!

#2

So you made a sim at 60 % velocity and the converted vdb runs at 100 % ?
VERY VERY ODD
Have you tried caching velocity ?

#3

This may…or may not be relevant. https://www.rad-science.com/post/2019/07/10/volume-displacement-and-motion-blur-from-tfd-in-redshift-c4d

#4

I may not have cached velocity, I will check that when I am back at my computer and let you know! I think I may have been thrown off by ‘velocity’ because I was thinking about it as a time scale, but I guess the two go hand in hand.

Thanks for the reply :slight_smile:

#5

Works fine for me without having to cache velocity I will post a render soon when I have something a bit better to show than the quick test i did give me 1/2 hour or so

#6

Here you go works fine…

#7

Check out my other experiments…

#8

Really nice work! Thanks for sharing. So that test you ran is baked out to vdb? That’s so strange it’s not working for me. Only possible variable is that I am driving my TFD sim with X-Particles. Maybe that is where I’m loosing my timing? I’m going to try a version without XP and see if that fixes it. Thanks for all the help :slight_smile:

#9

Yeah that could well be it but see if that -s switch suggestion above helps splitting the velocities. But sorry I know little of x-particles wish I did