.. Comment: this file is automatically generated by `update_example_docs.py`.
   It should not be modified manually.

Depth compositing
==========================================


In this example, we show how to use a background image with depth compositing. This can
be useful when we want a 2D image to occlude 3D geometry, such as for NeRF rendering.



.. code-block:: python
        :linenos:


        import time

        import numpy as np
        import trimesh
        import trimesh.creation

        import viser

        server = viser.ViserServer()


        img = np.random.randint(0, 255, size=(1000, 1000, 3), dtype=np.uint8)
        depth = np.ones((1000, 1000, 1), dtype=np.float32)

        # Make a square middle portal.
        depth[250:750, 250:750, :] = 10.0
        img[250:750, 250:750, :] = 255

        mesh = trimesh.creation.box((0.5, 0.5, 0.5))
        server.scene.add_mesh_trimesh(
            name="/cube",
            mesh=mesh,
            position=(0, 0, 0.0),
        )
        server.scene.set_background_image(img, depth=depth)


        while True:
            time.sleep(1.0)