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

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

.. _sphx_glr__gallery_introductory_hello_text.py:


Hello text
==========

Example showing text in world and screen space. Also notice how the
text is shown on top of the plane (due to its depth offset).

Setting aa to True improves the quality of the text rendering.

.. GENERATED FROM PYTHON SOURCE LINES 10-79



.. image-sg:: /_gallery/introductory/images/sphx_glr_hello_text_001.webp
   :alt: hello text
   :srcset: /_gallery/introductory/images/sphx_glr_hello_text_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    from time import perf_counter

    import pygfx as gfx
    import pylinalg as la


    scene = gfx.Scene()

    # Create a plane to put attach text to
    plane = gfx.Mesh(
        gfx.box_geometry(20, 20, 1),
        gfx.MeshPhongMaterial(color=(0.2, 0.4, 0.6, 1.0)),
    )
    scene.add(plane)

    # Create two texts, one on each side of the plane
    text1 = gfx.Text(
        text="Hello world",
        font_size=2.8,
        material=gfx.TextMaterial(color="#ddd", aa=True),
    )
    text1.local.position = (0, 0, 0.5)
    plane.add(text1)

    text2 = gfx.Text(
        text="Здравей свят",
        font_size=2.0,
        material=gfx.TextMaterial(color="#ddd", aa=True),
    )
    text2.local.position = (0, 0, -0.5)
    text2.local.scale = (-1, 1, 1)
    plane.add(text2)

    # Another text in screen space. Also shows markdown formatting
    text3 = gfx.Text(
        markdown=" **Screen** space",
        screen_space=True,
        font_size=20,
        anchor="bottom-left",
        material=gfx.TextMaterial(color="#0f4", aa=True),
    )
    text3.local.position = (10, 10, 0)
    plane.add(text3)

    # Let there be ...
    scene.add(gfx.AmbientLight())
    light = gfx.DirectionalLight()
    light.local.position = (0, 0, 1)
    scene.add(light)


    t_last = perf_counter()


    def before_render():
        global t_last
        t_new = perf_counter()
        dt = t_new - t_last
        t_last = t_new
        rot = la.quat_from_euler((0.25 * dt, 0.5 * dt), order="XY")
        plane.local.rotation = la.quat_mul(rot, plane.local.rotation)


    disp = gfx.Display(before_render=before_render)

    if __name__ == "__main__":
        disp.show(scene)


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

   **Total running time of the script:** (0 minutes 10.827 seconds)


.. _sphx_glr_download__gallery_introductory_hello_text.py:

.. only:: html

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

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

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

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

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

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

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