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

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

.. _sphx_glr__gallery_feature_demo_dynamic_env_map.py:


Dynamic Environment Map
=======================

This example shows three objects.

Two rotating objects have a static env map that matches the skybox.

In the center is a sphere that has a dynamic environment map, which is
updated using a CubeCamera. The two rotating objects are visible in the
reflection of this object.

.. GENERATED FROM PYTHON SOURCE LINES 14-113



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_dynamic_env_map_001.webp
   :alt: dynamic env map
   :srcset: /_gallery/feature_demo/images/sphx_glr_dynamic_env_map_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    import math
    import time

    import imageio.v3 as iio
    import pylinalg as la
    from rendercanvas.auto import RenderCanvas, loop

    import pygfx as gfx
    from pygfx.utils.cube_camera import CubeCamera

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


    # Create the static env map

    env_img = iio.imread("imageio:meadow_cube.jpg")
    cube_size = env_img.shape[1]
    env_img.shape = 6, cube_size, cube_size, env_img.shape[-1]

    env_static = gfx.Texture(
        env_img, dim=2, size=(cube_size, cube_size, 6), generate_mipmaps=True
    )

    # Create the dynamic env map

    env_dynamic = gfx.Texture(
        dim=2, size=(512, 512, 6), format="rgba8unorm", generate_mipmaps=True
    )

    cube_camera = CubeCamera(env_dynamic)

    # Create a background skybox

    background = gfx.Background(None, gfx.BackgroundSkyboxMaterial(map=env_static))
    scene.add(background)

    # Create the sphere

    material1 = gfx.MeshStandardMaterial(roughness=0.05, metalness=1)
    material1.side = "Front"
    material1.env_map = env_dynamic
    sphere = gfx.Mesh(
        gfx.sphere_geometry(15, 64, 64),
        material1,
    )

    scene.add(sphere)

    # Create the other two objects

    material2 = gfx.MeshStandardMaterial(roughness=0.15, metalness=1)
    material2.env_map = env_static

    ob1 = gfx.Mesh(gfx.geometries.klein_bottle_geometry(15), material2)
    scene.add(ob1)

    ob2 = gfx.Mesh(gfx.torus_knot_geometry(8, 3, 128, 16), material2)
    scene.add(ob2)


    # Camera and controller

    camera = gfx.PerspectiveCamera(70, 16 / 9)
    camera.show_object(scene, scale=2)

    controller = gfx.OrbitController(camera, register_events=renderer)


    def animate():
        t = time.time()

        ob1.local.position = (
            math.cos(t) * 30,
            math.sin(t) * 30,
            math.sin(t) * 30,
        )

        rot = la.quat_from_euler((0.02, 0.03), order="XY")
        ob1.local.rotation = la.quat_mul(rot, ob1.local.rotation)

        ob2.local.position = (
            math.cos(t + 10) * 30,
            math.sin(t + 10) * 30,
            math.sin(t + 10) * 30,
        )

        ob2.local.rotation = la.quat_mul(rot, ob2.local.rotation)

        cube_camera.render(scene)
        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 1.909 seconds)


.. _sphx_glr_download__gallery_feature_demo_dynamic_env_map.py:

.. only:: html

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

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

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

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

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

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

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