Hello! We would just like to update you about our new simulation benchmark and other news related to the FLIP Fluids addon.

FLIP Fluids Simulation Benchmark

The FLIP Fluids simulation benchmark is now open for submissions. Instructions, downloads, and form submission can be found on our benchmark page: http://flipfluids.com/benchmark/

This simulation benchmark is composed of six simulation scenes, each with a setup designed to test different aspects of your hardware such as multi-threaded CPU performance, single-threaded and boosted CPU performance, memory performance, and more. It is not required to run all simulations scenes and you may submit results for any Blend file. Depending on your hardware, some scenes may require a long running time so you may want to leave a benchmark running overnight while your system is not in use. For a reference, see these estimated running times for each scene depending on hardware:

Once we have gathered sufficient information, a link will be published to view the results. If you have any questions or run into any issues while running a benchmark scene, do not hesitate to ask us at support@flipfluids.com

Command Line Baking for Faster Simulations

Are you running a long simulation and want to maximize performance and stability? Try baking from the command line - it's as easy as clicking a button! The FLIP Fluids sidebar contains operators for automatically launching a command line baking process and other tasks:

Baking (and also rendering) from the command line can improve performance, reduce memory usage, and prevent crashes related to the Blender UI or other addons. Depending on the operating system settings or power management options, Blender performance may decrease when the application is idle or the UI window is minimized or in the background. Baking from the command line can help prevent decreased baking performance in these cases. Read more about the Command Line Tools here.

Simulation Bake Halting Issue - Gathering Feedback

Have you experienced a FLIP Fluids simulation stopping in the middle of a frame? We are gathering feedback on a possibly rare issue that has been reported. Symptoms of this issue:

The simulation halts during a bake and stops progressing.
The simulation does not crash or end.
Blender CPU usage reduces to a minimum.
The simulation can continue when restarting Blender, but the issue may be encountered again.
When baking from the command line or viewing the Blender System Console Window, the simulation halts at the BEGIN Advect Velocity Field stage. Tip: On Windows OS, Blender's system console window can be opened to view simulation progress with Window > Toggle System Console.

If you are experiencing this issue, please let us know by sending us a message here, by email at support@flipfluids.com or by responding to GitHub Issue #628.

- Ryan and Dennis of the FLIP Fluids Addon Development Team

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