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

.. only:: html

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

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

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

.. _sphx_glr__gallery_introductory_light_basic.py:


Lights
======


Simple light example.
This example shows a cube with MeshPhongMaterial illuminated by a point light and a directional light.

.. GENERATED FROM PYTHON SOURCE LINES 9-64



.. image-sg:: /_gallery/introductory/images/sphx_glr_light_basic_001.webp
   :alt: light basic
   :srcset: /_gallery/introductory/images/sphx_glr_light_basic_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    import time
    import numpy as np

    from rendercanvas.auto import RenderCanvas, loop
    import pygfx as gfx
    import pylinalg as la

    renderer = gfx.renderers.WgpuRenderer(RenderCanvas())
    scene = gfx.Scene()

    cube = gfx.Mesh(
        gfx.box_geometry(20, 20, 20),
        gfx.MeshPhongMaterial(),
    )
    cube.local.rotation = la.quat_from_euler((np.pi / 6, np.pi / 6), order="XY")
    scene.add(cube)

    light = gfx.DirectionalLight("#0040ff", 3)
    light.local.x = 15
    light.local.y = 20

    scene.add(light.add(gfx.DirectionalLightHelper(10)))

    light2 = gfx.PointLight("#ffaa00", 300, decay=2)  # 300 candela
    light2.local.x = -15
    light2.local.y = 20

    scene.add(light2.add(gfx.PointLightHelper()))

    scene.add(gfx.AmbientLight("#fff", 0.2))

    camera = gfx.PerspectiveCamera(70, 16 / 9)
    camera.show_object(cube, scale=1.5)
    controller = gfx.OrbitController(camera, register_events=renderer)


    def animate():
        t = time.time() * 0.1
        scale = 30

        light2.local.position = (
            np.cos(t) * np.cos(3 * t) * scale,
            np.cos(3 * t) * np.sin(t) * scale,
            np.sin(3 * t) * scale,
        )

        renderer.render(scene, camera)
        renderer.request_draw()


    if __name__ == "__main__":
        renderer.request_draw(animate)
        loop.run()


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

   **Total running time of the script:** (0 minutes 0.552 seconds)


.. _sphx_glr_download__gallery_introductory_light_basic.py:

.. only:: html

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

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

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

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

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

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

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