> For the complete documentation index, see [llms.txt](https://datashapes.gitbook.io/primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://datashapes.gitbook.io/primer/revit/raybounce-on-link-category.md).

# RayBounce On Link Category

## 1. Description

This node has the same functionality as RayBounce On Linked Model but it gives you the opportunity to do the RayBounce on a given category. 

![](/files/-LVroHZG2ZrhvDLe_n68)

## 2. Inputs

* **Points**

This input takes a list of points from which the RayBouncing will be performed.

* **Direction**

This input takes the direction of the RayBouncing.

* **3D View : View3D**

This input takes the 3D View you want to perform the RayBouncing in.

* **Category : Category**

This input takes the category you want to RayBounce on.

* **BounceOnLinksOnly**

This input takes a boolean value to indicate wether the Bouncing should be performed on the linked model only or on the whole model.

## 3. Outputs

* **Points**

This output gives the points resulting from the RayBouncing. 

* **Elements**

The elements (of the given category) that have been hit by the RayBouncing are gathered in this output.

![](/files/-LVrbIDmsOh5W_clVDzd)