> For the complete documentation index, see [llms.txt](https://docs.overthereality.ai/over-sdk-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.overthereality.ai/over-sdk-manual/sdk-window/samples/sample_opaqueobjectsmask.md).

# Sample\_OpaqueObjectsMask

The **Sample\_OpaqueObjectsMask** object is designed to demonstrate how a plane with the **Sample\_OpaqueObjectsMask** material interacts with both opaque and transparent objects in a Unity 3D scene.

 This material serves as a specialized mask that affects the rendering and processing behavior of objects, specifically in distinguishing opaque and transparent materials.

Additionally, this material applies its properties to the transparent material and to the **OVRMaps** as well.