Why don't my H16 FLIP fluid scenes work in H18 anymore?

[HappehLemons]

I've got a small scale fluid sim "trick" that someone showed me a few year ago where on an emitter if I add a vdbfromploys and a scatter, then merge them I can make smaller scale fluid sims much easier. Truthfully I don't understand why this works - but it always has. 

It's always allowed me to make small scale fluid sims without issues, although now that I've upgraded to H18, when I setup the node network manually I just get grey non moving fluid particles. It seems like since H16 the crate_surface node has changed a bit, which I'm assuming is causing this issues. 

Just to be clear, my H16 scene works when I import it, but when I try to recreate it in H18 it no longer works. Here's the two .hipnc files.

Can someone explain why this no longer works, or what I need to do to get this functioning again?

 

Thank you for any help, I've really tried everything here but I can't seem to figure this one out.

 

 

H18 Small Scale.hipnc

H16_Small_Scale.hipnc

 

Edited April 19, 2020 by HappehLemons

[Noobini]

I use Indie 18.0.348, without touching anything, just run the thing, I get this:

 

[HappehLemons]

21 minutes ago, Noobini said:

I use Indie 18.0.348, without touching anything, just run the thing, I get this:

 

Is this when you're using the H18 file or the H16 file? My issue is that the H18, which is setup manually, doesn't work. The H16 file does work. This is what I don't understand. 

[Noobini]

2 minutes ago, HappehLemons said:

Is this when you're using the H18 file or the H16 file? My issue is that the H18, which is setup manually, doesn't work. The H16 file does work. This is what I don't understand. 

oh...misread your question...I thought your H16 file no longer works in 18

(I ran the H16 file with H18)

[HappehLemons]

10 minutes ago, Noobini said:

oh...misread your question...I thought your H16 file no longer works in 18

(I ran the H16 file with H18)

Ah, nope. Thanks though. Problem only happens when I try to create that working H16 scene in H18 from the ground up.

[Noobini]

my poor old pc can't cope with your particle sep of 0.002 but in emitter, I connected flip source to  OUT_surface and I got droplets falling

(using H18 file in H18)

 

Edited April 20, 2020 by Noobini

[HappehLemons]

Thanks for digging into this, but while this does work it's so slow for some reason which is why I used the merge node to connect to the out_surface versus the flip source.

 

Previously, using merge node as the connector to the out surface made a huge, like almost 10x time save when it came to rendering the and view-port performance. 

Edited April 20, 2020 by HappehLemons

[Noobini]

wellllllllllllllllllll...

back to your orig H18 setup that doesn't work...I added a group after the merge, points, call them particles

works...don't ask...I just went inside the flip source and poked around.

I think we're back back to full speed ahead , capitan ?

(the one thing that is still puzzling me is, compare to the flip source branch, all particles are in group 'particles' except for 0 )

 

or if you feel particularly lazy this self isolation period, in DOP, volume source, particles, just blank out the group name of.....surprise surpirse....parrrrrrticles.....that works too.

 

Now how the H16 version works is also a mystery..ie...there's no group name...and if you go into source volume, particle operation and deliberately sabotage your work by changing the groupname to FRED....still worksss

Edited April 20, 2020 by Noobini

[HappehLemons]

On 4/19/2020 at 11:28 PM, Noobini said:

wellllllllllllllllllll...

back to your orig H18 setup that doesn't work...I added a group after the merge, points, call them particles

works...don't ask...I just went inside the flip source and poked around.

I think we're back back to full speed ahead , capitan ?

(the one thing that is still puzzling me is, compare to the flip source branch, all particles are in group 'particles' except for 0 )

 

or if you feel particularly lazy this self isolation period, in DOP, volume source, particles, just blank out the group name of.....surprise surpirse....parrrrrrticles.....that works too.

 

Now how the H16 version works is also a mystery..ie...there's no group name...and if you go into source volume, particle operation and deliberately sabotage your work by changing the groupname to FRED....still worksss

 

Thank you for digging into this!! you're a life saver.