FLIP Fluids Version 1.7.2 has been released and adds official compatibility support for Blender 4.0, a fluid particle rendering feature set, bug fixes, and more (see full release notes).

Blender Compatibility: FLIP Fluids 1.7.2 is officially supported in Blender 2.80 to Blender 4.0. The release of Blender 4.0 has been delayed and is set to be released on November 14th. At the moment there are no known compatibility issues between this version and the latest build of Blender 4.1 Alpha but this could change as Blender 4.1 develops.

Fluid Particle Rendering: This version contains a new feature set for rendering fluid particles and fluid particle attributes (Documentation).

Fluid particle export settings can be found in a new Domain > FLIP Fluid Particles panel with options to adjust amount of particles to export, and whether to export surface, boundary, and interior particles.
Display and render options to set the amount of particles to display (Display Documentation). By setting a low amount of fluid particles and rendering both particles and the fluid surface, you can create realistic gel and honey effects with bubbles.
Fluid particles support all of the same attributes as the fluid surface: Velocity, Speed, Vorticity, Color, Age, Lifetime, Whitewater Proximity, and Source ID, and a built-in Particle ID attribute (Attribute Documentation). Use these attributes in Geometry Nodes and Material shaders to create interesting new effects! For example, use the Particle ID to randomize particle size and color, use the Lifetime attribute to fade out the fluid particles before they are removed, or shade the particles based on velocity.

New Attributes: A new Lifetime attribute has been added that allows the fluid to start with a lifetime value that counts down in seconds and once the lifetime reaches 0, the fluid is removed from the simulation. Each Inflow/Fluid object can be set to assign a starting lifetime to the generated fluid.
A set of Whitewater Proximity attributes has also been added. These attribute values represent the number of foam, bubble, or spray whitewater particles that are nearby and can be used in a material to shade parts of the surface or fluid particles that are near whitewater particles. See the attribute documentation for more info.

- Ryan and Dennis of the FLIP Fluids Addon Development Team

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