.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "_gallery/other/edl_pointcloud.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download__gallery_other_edl_pointcloud.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr__gallery_other_edl_pointcloud.py:


Point cloud with Eye-Dome Lighting (EDL)
========================================

This example renders the Stanford Bunny point cloud (via Open3D) and applies
EDL as a post-process to enhance depth perception.

.. GENERATED FROM PYTHON SOURCE LINES 8-77

.. code-block:: Python



    from importlib.util import find_spec

    from rendercanvas.auto import RenderCanvas, loop
    import pygfx as gfx
    from pygfx.renderers.wgpu.engine.edl import EDLPass

    if not find_spec("open3d"):
        raise ImportError(
            "The `open3d` library is required for this example: pip install open3d"
        )

    import open3d as o3d


    def load_open3d_bunny_pointcloud(max_points: int = 40000) -> o3d.geometry.PointCloud:
        # Prefer the Open3D bunny point cloud dataset if available
        try:
            pcd_path = o3d.data.BunnyPointCloud().path
            pcd = o3d.io.read_point_cloud(pcd_path)
            if len(pcd.points) > 0:
                # Uniformly downsample if too many points
                if len(pcd.points) > max_points:
                    stride = max(1, len(pcd.points) // max_points)
                    pcd = pcd.uniform_down_sample(stride)
                return pcd
        except Exception:
            pass

        # Fallback: load bunny mesh dataset and sample points
        mesh_path = o3d.data.BunnyMesh().path
        mesh = o3d.io.read_triangle_mesh(mesh_path)
        if not mesh.has_vertices():
            raise RuntimeError("Failed to load Bunny mesh via Open3D data")
        # Poisson disk sampling for a clean distribution
        pcd = mesh.sample_points_poisson_disk(max_points)
        return pcd


    canvas = RenderCanvas(update_mode="continuous")
    renderer = gfx.renderers.WgpuRenderer(canvas)
    scene = gfx.Scene()

    # Background for contrast
    scene.add(gfx.Background.from_color("#111"))

    # Load Stanford Bunny with Open3D and render as point cloud
    pcd = load_open3d_bunny_pointcloud(max_points=40000)
    geometry = gfx.geometries.geometry_from_open3d(pcd)
    material = gfx.PointsMaterial(size=8.0, color="#ddd", aa=False, size_space="screen")
    points = gfx.Points(geometry, material)
    scene.add(points)

    camera = gfx.PerspectiveCamera(60, 1)
    camera.show_object(scene, view_dir=(1, -1, 0.8))

    controller = gfx.OrbitController(camera, register_events=renderer)

    # Add lights (not strictly needed for points, but harmless)
    scene.add(gfx.AmbientLight(0.4), camera.add(gfx.DirectionalLight(0.8)))

    # Apply EDL as post-processing
    renderer.effect_passes = [EDLPass(strength=10.0, radius=1.5, depth_edge_threshold=0.0)]


    if __name__ == "__main__":
        canvas.request_draw(lambda: renderer.render(scene, camera))
        loop.run()


.. _sphx_glr_download__gallery_other_edl_pointcloud.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: edl_pointcloud.ipynb <edl_pointcloud.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: edl_pointcloud.py <edl_pointcloud.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: edl_pointcloud.zip <edl_pointcloud.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_

.. only:: html

    Interactive example
    -------------------

    Try this example in your browser using Pyodide. Might not work with all examples and all devices. Check the output and your browser's console for details.

    .. raw:: html

        <iframe src="./../pyodide.html#edl_pointcloud.py"></iframe>