-* **`UseOverrideMaterial`**: If enabled, the material stored in `OverrideMaterial` is used to render the geometry with that material. It's an efficient way to switch rendering of larger model parts with a dedicated material without actually switching individual part materials. [Color materials](color-materials.md) may override [PBR materials](pbr-materials.md) and vice versa. However, it must be guaranteed that the model provides mandatory vertex streams, for instance, the vertex normal in case the overridden material is a [PBR material](pbr-materials.md). Furthermore, overrides that toggle on transparency, only work reliably in the *TileBasedComposition* [rendering mode](../../concepts/rendering-modes.md).
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