---
title: How to label parts of a 3D object in VR
product: Advanced Framework Pro
version: 2.0
engine: Unreal Engine 5.8
updated: 2026-11-01
canonical: https://docs.human-codeable.com/workflows/label-parts-of-object.html
---

# How to label parts of a 3D object in VR

Advanced Framework Pro labels a part of an object with one component, `BPC_Label_Simple`, placed where the text should float. It points at the part with an arrow or a leader line, turns to face the player and fades with distance, and it moves with the object because it is a component, not an actor in the level. By the end of this you will have named parts on a mesh with labels that update at runtime.

## At a glance

```
Your actor
├─ BPC_Label_Simple "Label_Base"    Title, Use Arrow = true          (label right next to the part)
├─ BPC_Label_Simple "Label_Elbow"   Title, Use Spline = true, Direction,
│                                   Spline Attach Component Tag or Spline Attach Socket
└─ BPC_Label_Info                   title, subtitle, body, button (optional)
Rule: Use Arrow or Use Spline, never both.    Runtime: Update Title
```

## Steps

1. Open the actor Blueprint and add a `BPC_Label_Simple` per part. Move each component to where its text should sit, a little off the part.
2. Set **Title** to the part's name.
3. Choose how the label points: **Use Arrow** for a label right next to its part, or **Use Spline** for a leader line to a part further away. Use one or the other, not both.
4. For a leader line, set **Spline Attach Component Tag** or **Spline Attach Socket** so the line ends on the part itself, and **Direction** to the side the line leaves the frame.
5. Call **Update Title** on the component to change the text at runtime.

[![Labels anchored to three objects at different distances](../images/AFS_UI_Labels_result-1600.webp?v=3ca5334e)](../images/AFS_UI_Labels_result-1600.webp?v=3ca5334e)

Labels anchored to three objects at different distances

## Notes

`BPC_Label_Info` is the same component with a title, subtitle, body text and a button, for a full information card rather than a name.

Show labels only when they help: bind to the interaction's highlight delegate and activate the label on hover, or call the component when the player reaches a step.

Labels use the active theme, so they restyle with everything else. For a different frame, swap **Frame Widget**.

Performance

Each label is a world-space widget. Keep **Draw Size** modest and rely on distance fade when labelling many parts.

`Map_Examples_Labels` shows three labels on a robot arm with the arrow, line, colour and scale settings switchable from the table, and an info label on a statue.