UI Toolkit Minimap

The Minimap UIToolkit prefab provides a minimap built with Unity's UI Toolkit system.

Prefab Structure

Minimap UIToolkit
├── Minimap Camera          ← orthographic camera, renders to Minimap RT
├── Camera Frustum Box      ← LineRenderer showing the main camera's view area
├── Minimap Document        ← UIDocument displaying Minimap RT
└── EventSystem

Setup

Drag the Minimap UIToolkit prefab into your scene.
Adjust the Minimap Camera's orthographic size and distance to fully cover the game map.
Assign the Minimap Camera and the Camera Frustum Box LineRenderer to a dedicated rendering layer (e.g. Minimap). This is already done in the prefab, but you will be missing the layers in your project if you just imported this, or they might have overwritten your own layers, so double check to make sure.
Remove the minimap layer from the main game camera's Culling Mask so the frustum box is invisible in the main view.
Set the Bound Camera on MinimapCameraBinderUIToolkit to your game camera controller.
Set the Camera on MinimapFrustumBox to your main game camera.

Configuration

Minimap Camera

Field	Value
Target Texture	The `Minimap RT` Render Texture asset
Culling Mask	The layers you want visible on the minimap
Projection	Orthographic

You can adjust the Render Texture resolution to get the fidelity you need - larger textures give a sharper minimap but use more memory.

MinimapFrustumBox

Field	Description
Camera Frustum Box Renderer	The `LineRenderer` on this GameObject
Camera	Your main game camera
Ground Layer Mask	Layer(s) used as the ground for frustum ray projection. Leave empty if you don't need the box to follow terrain elevation
Camera View Display Vertical Offset	Lifts the line slightly above the ground to prevent clipping
Max Distance Fallback	Fallback projection distance if the ground raycast misses. Increase this for cameras that pitch steeply or use free look
Line Color / Width	Increase width to avoid aliasing if the rendered line appears too thin

MinimapCameraBinderUIToolkit

Found on the Minimap Document game object.

Field	Description
Bound Camera	Your game camera controller
Minimap Element Name	Name of the child `VisualElement` to treat as the clickable minimap surface. Leave empty to use the root element

UIToolkitCameraInputBlocker