Discussion about the way Lucid records simulation data.

 
 
 
Posted by:michaelwbell
Data created:4 December 2015

I was interested in hearing about the recording workflow with Lucid. 


This something that has happened to me a lot recently.

  1. Set up a Lucid simulation with Fluids and other dynamics
  2. Record the simulation from Frame 1000-1500
  3. Later on, when working with the scene, I hit the record button at an earlier frame (frame 0). User Error? It records for around 200 frames.

Result:

All frames later in the timeline are lost, even if they haven't been 'written' yet. 

 

With RealFlow. If a user was to do this, frames that are later in the timeline are never lost unless that frame is overwritten. All the simulation data later in the timeline will still be there. 

 

Is this avoidable with Lucid, or the way the workflow is setup? 

 

Michael Wentworth-Bell

--

Test system for Lucid:
i7-4790k
GTX 780 6GB
32GB Ram
Windows 7 Pro
3ds Max 2016 EXT2

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Portfolio - http://thelode.com.au
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Right now whenever you re-simulate, whether during recording or not, all previously recorded data is cleared from all simulated objects. Immediate solution for your case, if you are simulating meshes, would be to point cache the recorded data before re-simulating the scene. This is a limitation though.

I suppose solution for this workflow would be to have 'non-destructive' recording option which would add samples to previously recorded data instead of clearing everything first. Though I wonder if that is the most flexible approach.

Marsel Khadiyev (Software Developer, EPHERE Inc.)

I am not sure what the most flexbile approach is, was hoping to hear some input from more beta testers. 
i know one common workflow is to start the scene from frame 1000 to allow pre-roll and more flexibility. 

I found myself accidentally overwriting the sim of some objects by hitting record while I was on an earlier frame. Obviously people can adapt to the workflow of whatever system they're using and manage their scene better!

 

Michael Wentworth-Bell

--

Test system for Lucid:
i7-4790k
GTX 780 6GB
32GB Ram
Windows 7 Pro
3ds Max 2016 EXT2

--

Portfolio - http://thelode.com.au
Facebook - https://www.facebook.com/DigitalLode