> For the complete documentation index, see [llms.txt](https://docs.multiset.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.multiset.ai/unity-sdk/ar-foundation/api-reference/mapmeshhandler.md).

# MapMeshHandler

Download, cache and render a map mesh in the Unity scene, with visualization and occlusion options.

The MapMeshHandler is a Singleton class that manages the downloading, caching, and in-scene visualization of 3D map meshes. It controls how the mesh is rendered based on user-selected options (e.g., for visualization or occlusion) and ensures the mesh is only displayed after a successful localization.

#### Enum: MeshVisualizationOption

This enum defines the rendering options for the map mesh.

| Value               | Description                                                                                                                                                                   |
| ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| EnableVisualization | Downloads and displays the full, textured map mesh.                                                                                                                           |
| EnableOcclusion     | Downloads the mesh and applies a special occlusion material. The mesh itself is invisible but will hide any virtual objects that are behind it from the camera's perspective. |
| NoMesh              | Prevents any mesh from being downloaded or displayed.                                                                                                                         |

#### Public Variables

| meshVisualizationOption | **(From Inspector)** Selects the visualization mode for the map mesh. See MeshVisualizationOption enum for details. |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------- |


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