> For the complete documentation index, see [llms.txt](https://docs.shadersource.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.shadersource.io/assets-and-plugins/fluid-interaction-tool/how-to-use/3.-fluid-controller.md).

# 3. Fluid Controller

## Setting up the Fluid Controller to your scene

Navigate to your *Place Actors* tab and search for "Fluid Controller". Select the **BP\_FluidController** from the list and place it within your scene.

![](https://2855220899-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Mk51ACJUA5E3mZvLb9h%2F-MkAYXHGHy_ZdTb_zB3n%2F-MkAjV6WtD_dbIkpeNaz%2FPlaceFluidController.jpg?alt=media\&token=be56f791-10a2-4ca0-afb0-a87c6cdb664f)

Once placed in the scene, navigate to the *Details Panel*.

Under the *Render Targets* category, make sure your previously created Render Targets are input into the **Fluid Out** parameters.

![](https://2855220899-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Mk51ACJUA5E3mZvLb9h%2F-MkAYXHGHy_ZdTb_zB3n%2F-MkAsk-wE8KjkevXFSAE%2FFluidRenderTargets.jpg?alt=media\&token=a99a0a6e-67ef-44de-b757-435de244270d)

{% hint style="info" %}
You will need to add multiple Fluid Controllers and add the correct **Fluid Out** Render Targets if you plan to have multiple fluid simulations.
{% endhint %}

You can also change some of the fluid simulation settings in this *Details Panel*.

* **Fluid Update Rate**: This will change the rate at which the fluid simulation ticks.
* **Fluid Travel Speed**: This will change the speed at which the fluid ripples travel.
* **Fluid Dampening**: This changes the dampening amount for the fluid ripples.
* **Normal Intensity**: This changes the overall normal calculation intensity for this fluid simulation.