---
title: "49 - Global Controls > Fluid Controls"
url: "https://help.maxon.net/rg/en-us/Content/html/49-Trapcode-Particular-global-fluid-controls.html"
section_path: "Particles and 3D > Trapcode Particular > 49 - Global Controls > Fluid Controls"
description: "These controls affect all particle systems within your Particular effect that use the Fluid physics model."
---

# 49 - Global Controls > Fluid Controls

Particular

### Global Fluid Controls

These controls affect all particle systems within your Particular effect that use the Fluid physics model.

*NOTE:* These controls are also available in the Designer on the Primary System’s Physics Simulations block at the end of the Fluids group.

#### Fluid Simulation Fidelity

This control sets the scope of forces applied to fluid particles. Higher values create more granular, micro-force interactions. Lower values create broader, more macro-force interactions.

![Fluid simulation with low fidelity](https://help.maxon.net/rg/en-us/Content/Resources/Images/lowfidelity_trapcode-particular.gif)

Low fidelity

![Fluid simulation with high fidelity](https://help.maxon.net/rg/en-us/Content/Resources/Images/highfidelity_trapcode-particular.gif)

High fidelity

*With high fidelity, the force affects finer areas of the emitter.*

#### Fluid Viscosity

Defines how sticky particles are to one another. Higher viscosity yields a more semi-fluid, thicker appearance.