// undine docs

Parameters

The Parameters section is the reference index for the main control families exposed by Undine.

Each chapter in this section has its own stable route so the addon can link directly to the right context in the future.

How this reference is organized

The reference follows both the panel layout and the solver architecture: scene role tagging, action execution, scene space, simulation behavior, fluid behavior, scene interaction, surface generation, and diagnostics.

Some pages explain the conceptual role of a system, while others document the control groups visible in the current Blender panel.

Objects Role tagging, active object state, and scene counts. Actions Frame range, run controls, playback cache, meshify launch, and operation states. Domain The simulation region and its role in scene configuration. Simulation The numerical core, solver stages, consistency, and robustness priorities. Fluid Physically coherent liquid behavior and artistic control. Emitters How fluid particles are generated during a simulation. Colliders How scene objects affect fluid motion. Meshing How particles are converted into renderable fluid surfaces. Debug Why diagnostics matter and which failure patterns to watch for.

Reference map

Family	Focus	Route
Objects	Scene roles, active object parameters, and domain/emitter/collider tagging.	/docs/parameters/objects
Actions	Frame range, collider baking, run state, playback, meshify launch, and result handling.	/docs/parameters/actions
Domain	Simulation space and scene bounds.	/docs/parameters/domain
Simulation	Core solver stages, consistency, and numerical robustness.	/docs/parameters/simulation
Fluid	Liquid behavior, material response, and artistic control.	/docs/parameters/fluid
Emitters	Particle generation and liquid input.	/docs/parameters/emitters
Colliders	Boundary interaction and scene objects.	/docs/parameters/colliders
Meshing	Surface reconstruction and renderable output.	/docs/parameters/meshing
Debug	Artifacts, consistency, and future diagnostics.	/docs/parameters/debug

UI tab map

The Sim Params tab contains several families that are split across multiple reference pages so the documentation remains readable.

Visible tab or group	Documented in	Notes
Objects	Objects	Tag Domain, Tag Emitter, Tag Collider, Clear Tags, and active object role feedback.
Actions	Actions	Run, Stop, Cancel, Bake colliders, playback cache, Meshify Simulation, Store, and Discard.
Sim Params: Presets and Forces	Fluid	Water, Oil, Honey, Chocolate, Slime, custom presets, gravity, drag, and material response.
Sim Params: Numerics and Pressure	Simulation	Grid resolution, host pinning, pressure backend, iterations, fallback, CFL, bricks, and density mode.
Sim Params: Collider SDF and Contact	Colliders	Boundary bands, contact refill, normal damping, tangential friction, and slip controls.
Meshify	Meshing	Voxelization, quality controls, VDB route, Taubin smoothing, morphology, remesh, anisotropy, and mesh cache state.
Debug and Viewport Limits	Debug	Performance readouts, diagnostic toggles, mesh cache status, density viewport percentage, max-per-cell display, and liquid-only view.

Reference formatting

Parameter pages should follow a consistent style as the technical reference grows.

Example parameter documentation format

### Stick Strength

Controls how strongly fluid particles adhere to collider surfaces.

Higher values increase the tangential resistance between the fluid and the collider surface, making the liquid appear to stick to the object.

Typical range:
0.0 - 5.0

Developer Notes

Undine is built with a modular solver architecture, and individual solver stages are designed to evolve independently over time.

That design makes the documentation useful not only for artists, but also for technically oriented users who want to understand how the system is organized internally.

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