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

.. only:: html

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

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

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

.. _sphx_glr__gallery_feature_demo_fly_controller.py:


Fly controller
==============

Fly through a cloud of cololoured points. This example demonstrates the fly
controller, as well as the GaussianBlob point material, with size_space set to
'world'.

Tip: try using different values for alpha_mode.

.. GENERATED FROM PYTHON SOURCE LINES 11-62



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_fly_controller_001.webp
   :alt: fly controller
   :srcset: /_gallery/feature_demo/images/sphx_glr_fly_controller_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    from rendercanvas.auto import RenderCanvas, loop
    import pygfx as gfx
    import numpy as np


    canvas = RenderCanvas()
    renderer = gfx.renderers.WgpuRenderer(canvas)
    scene = gfx.Scene()
    scene.add(gfx.Background.from_color("#000"))

    grid = gfx.Grid(
        None,
        gfx.GridMaterial(
            major_step=100,
            minor_step=10,
            thickness_space="world",
            major_thickness=2,
            minor_thickness=0.1,
            infinite=True,
        ),
        orientation="xz",
    )
    grid.local.y = -120
    scene.add(grid)

    # Create a bunch of points
    n = 1000
    positions = np.random.normal(0, 50, (n, 3)).astype(np.float32)
    sizes = np.random.rand(n).astype(np.float32) * 50
    colors = np.random.rand(n, 4).astype(np.float32)
    geometry = gfx.Geometry(positions=positions, sizes=sizes, colors=colors)

    material = gfx.PointsGaussianBlobMaterial(
        color_mode="vertex",
        size_mode="vertex",
        size_space="world",
        alpha_mode="dither",
    )
    points = gfx.Points(geometry, material)
    scene.add(points)

    camera = gfx.PerspectiveCamera(70)
    camera.show_object(scene)
    controller = gfx.FlyController(camera, register_events=renderer)


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


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.602 seconds)


.. _sphx_glr_download__gallery_feature_demo_fly_controller.py:

.. only:: html

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

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

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

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

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

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

      :download:`Download zipped: fly_controller.zip <fly_controller.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#fly_controller.py"></iframe>