FLIP Fluids 1.7.1 fixes compatibility issues for MacOS/Linux, updates support for Blender 4.0 Alpha, and adds new features and bug fixes.
Compatibility Notes:
FLIP Fluids 1.7.1 is officially supported in Blender 2.80 to Blender 3.6.
Blender 4.0: At this moment there are no known compatibility issues between this version of the FLIP Fluids addon and the latest daily build of Blender 4.0, but this may change as Blender 4.0 develops.
This tool automatically sets up the simulation meshes for export and can also export the surface velocity and whitewater velocity attributes for motion blur rendering.
This tool also adds optimizations that can speed up the export process compared to using the default Blender Alembic exporter.
The FLIP Fluids addon is continuously running scripts in order to manage all of the functionality of the addon. These scripts can add overhead and can slow down the Blend file, especially if there are many objects contained in the file. Use this operator to temporarily disable the addon to speed up the Blend file when you are not actively using the addon.
While the addon is disabled, all functionality will be disabled. To continue using the addon, simply re-enable the addon using the operator displayed in the FLIP Fluids sidebar or the Physics Properties panel.
Added: Feature to set an Obstacle > Velocity Scale value to scale the moving obstacle velocity by this amount within the simulation.
Values greater than 1.0 will exaggerate the velocity and the simulation will behave as if the object is moving faster than it actually is.
Values between 0.0 and 1.0 will dampen the velocity, but may result in increased volume loss.
Negative values will reverse the direction of velocity.
This setting is for artistic control and any value other than 1.0 will not be physically accurate.
Bug Fix: Fixed issue where the mesh generator could create a non-manifold mesh with holes in certain situations (issue #622).
Bug Fix: Fixed issue where FLIP Fluids Sidebar > Command Line Tool Operators would not launch correctly on Linux operating systems.
Bug Fix: Fixed error message where processor model may not be retrieved correctly on Linux operating systems when using the Help > FLIP Fluids > Save System & Blend Info operator. Retrieving the processor model is now supported on a wider variety of Linux distributions, but is not guaranteed to work correctly on all distributions.
Bug Fix: Fixed issue where debug particle and debug force field drawing was not compatible with MacOS Apple Silicon (M1/M2) systems in Blender 3.5 and 3.6.
Bug Fix: Fixed compatibility issue in Blender 4.0 where debug particle and debug force field drawing would generate errors and not be displayed.
Bug Fix: Fixed issue where a bake could not be resumed if the cache stats file had become corrupted, such as in a power failure or Blend crash. The addon will now automatically regenerate the state file. Note: If the stats file had become corrupted, the Domain > Stats menu will be missing frame data and may not display correct information.
Bug Fix: Fixed issue where the Obstacle > Expand Geometry would not take effect for negative values within the simulator.
Improvement: Grid visualization, debug particle, and debug force field drawing will now display with depth in Blender 3.5 or later and is no longer an overlay drawn in the viewport foreground.
FLIP Fluids Addon v1.7.1
version 1.7.1 (Jul 25 2023)