Why does my fluid simulation look different after migrating from an older project?
If your original project had Fluid Time Factor set to a non-default value or was keyframed, this could be the cause.
In Trapcode Suite 16, with the addition of all new physics simulations, it was necessary to combine all of the time factoring into one central control, Physics Time Factor, and it was moved to the Global Controls group. Unfortunately, it wasn't possible to migrate Fluid Time Factor values over to Physics Time Factor, so there are some manual steps required in this case to restore your project to its original behavior.
If you know the settings previously used for the Fluid Time Factor in your project, you can simply set those same values for Physics Time Factor. If, however, you don’t quite recall the previous values used, you’ll need to temporarily roll back to Trapcode 15 and copy those values over. Here are the steps.
- Uninstall Trapcode via Maxon App
- Install Trapcode Suite 15
- Installer can be found HERE
- In your project, expose the keyframes for the Fluid Time Factor by hitting U on your keyboard with your Particular layer selected
- Select all of the keyframes and hit Ctrl/command + C to copy them
- Go to the Physics group and change the Physics Model from Fluid to Air to reveal Physics Time Factor
- Set your playhead where your first Fluid Time Factor keyframe is on the timeline
- Click the stopwatch for Physics Time Factor and hit Ctrl/command + V to paste the keyframes
- Set the Physics Model back to Fluid
- Save your project and close AE
You can now update Trapcode to the desired version and your time factor values will migrate appropriately.
Fluid Time Factor in Trapcode Suite 15
Physics Time Factor in Trapcode Suite 16 and up