.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "_gallery/feature_demo/geometry_torus_knot.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_geometry_torus_knot.py>`
        to download the full example code.

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

.. _sphx_glr__gallery_feature_demo_geometry_torus_knot.py:


Torus knot
==========

Example showing a Torus knot, with a texture and lighting.

.. GENERATED FROM PYTHON SOURCE LINES 7-38



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_geometry_torus_knot_001.webp
   :alt: geometry torus knot
   :srcset: /_gallery/feature_demo/images/sphx_glr_geometry_torus_knot_001.webp
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Imageio: 'bricks.jpg' was not found on your computer; downloading it now.
    Try 1. Download from https://github.com/imageio/imageio-binaries/raw/master/images/bricks.jpg (106 kB)
    Downloading: 8192/108257 bytes (7.6%)108257/108257 bytes (100.0%)
      Done
    File saved as /home/docs/.imageio/images/bricks.jpg.






|

.. code-block:: Python



    import imageio.v3 as iio
    from rendercanvas.auto import RenderCanvas, loop
    import pygfx as gfx


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

    im = iio.imread("imageio:bricks.jpg")
    tex = gfx.Texture(im, dim=2)

    geometry = gfx.torus_knot_geometry(1, 0.3, 128, 32)
    geometry.texcoords.data[:, 0] *= 10  # stretch the texture
    material = gfx.MeshPhongMaterial(map=tex)
    obj = gfx.Mesh(geometry, material)
    scene.add(obj)

    camera = gfx.PerspectiveCamera(70, 1)
    camera.show_object(scene)

    scene.add(gfx.AmbientLight(), camera.add(gfx.DirectionalLight()))

    controller = gfx.TrackballController(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 0.701 seconds)


.. _sphx_glr_download__gallery_feature_demo_geometry_torus_knot.py:

.. only:: html

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

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

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

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

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

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

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