.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "_gallery/feature_demo/scene_subplots1.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_scene_subplots1.py>`
        to download the full example code.

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

.. _sphx_glr__gallery_feature_demo_scene_subplots1.py:


Subplots 1
==========

Example showing how to render to a subregion of a canvas.

This is a feature necessary to implement e.g. subplots. This example
uses a low-level approach without using the Viewport object. See
scene_subplot2.py for a slightly higher-level approach.

.. GENERATED FROM PYTHON SOURCE LINES 11-70



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_scene_subplots1_001.webp
   :alt: scene subplots1
   :srcset: /_gallery/feature_demo/images/sphx_glr_scene_subplots1_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



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


    # Create a anvas and a renderer

    canvas = RenderCanvas(size=(500, 300))
    renderer = gfx.renderers.WgpuRenderer(canvas)

    # Compose a 3D scene

    scene1 = gfx.Scene()

    geometry1 = gfx.box_geometry(200, 200, 200)
    material1 = gfx.MeshPhongMaterial(color=(1, 1, 0, 1.0))
    cube1 = gfx.Mesh(geometry1, material1)
    scene1.add(cube1)

    camera1 = gfx.PerspectiveCamera(70, 16 / 9, width=200)
    camera1.local.z = 400
    scene1.add(camera1.add(gfx.DirectionalLight()))

    # Compose another scene

    scene2 = gfx.Scene()

    positions = np.array(
        [[-1, -1, 0], [-1, +1, 0], [+1, +1, 0], [+1, -1, 0], [-1, -1, 0], [+1, +1, 0]],
        np.float32,
    )
    geometry2 = gfx.Geometry(positions=positions)
    material2 = gfx.LineMaterial(thickness=5.0, color=(0.8, 0.0, 0.2, 1.0))
    line2 = gfx.Line(geometry2, material2)
    scene2.add(line2)

    camera2 = gfx.OrthographicCamera(2.2, 2.2)


    def animate():
        rot = la.quat_from_euler((0.005, 0.01), order="XY")
        cube1.local.rotation = la.quat_mul(rot, cube1.local.rotation)

        w, h = canvas.get_logical_size()
        renderer.render(scene1, camera1, flush=False, rect=(0, 0, w / 2, h / 2))
        renderer.render(scene2, camera2, flush=False, rect=(w / 2, 0, w / 2, h / 2))
        renderer.render(scene2, camera2, flush=False, rect=(0, h / 2, w / 2, h / 2))
        renderer.render(scene1, camera1, flush=False, rect=(w / 2, h / 2, w / 2, h / 2))
        renderer.flush()

        canvas.request_draw()


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


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

   **Total running time of the script:** (0 minutes 0.103 seconds)


.. _sphx_glr_download__gallery_feature_demo_scene_subplots1.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: scene_subplots1.ipynb <scene_subplots1.ipynb>`

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

      :download:`Download Python source code: scene_subplots1.py <scene_subplots1.py>`

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

      :download:`Download zipped: scene_subplots1.zip <scene_subplots1.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#scene_subplots1.py"></iframe>