Fluid Painter is an add-on that allows you to paint fluid effects directly onto surfaces in the 3D viewport. The tool includes two primary preset categories to handle different workflows.

The standard Fluid presets are designed for general fluid painting and are well-suited for creating leaks. The advanced Fluid+ presets dynamically adjust to the designated painting surface. To use a Fluid+ preset, you must assign a drawing surface by selecting one or more target objects before adding the preset to your scene.