.. DO NOT EDIT.
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.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/01_introductory/viz_morphing.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_auto_examples_01_introductory_viz_morphing.py>`
        to download the full example code.

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

.. _sphx_glr_auto_examples_01_introductory_viz_morphing.py:


============================
Morphing Animation in a glTF
============================
In this tutorial, we will show how to use morphing in a glTF model in FURY.

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.. code-block:: Python


    from fury import window
    from fury.data import fetch_gltf, read_viz_gltf
    from fury.gltf import glTF


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Retrieving the model with morphing in it (look at Khronoos samples).
We're choosing the `MorphStressTest` model here.

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.. code-block:: Python


    fetch_gltf("MorphStressTest", "glTF")
    filename = read_viz_gltf("MorphStressTest")


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Initializing the glTF object, You can additionally set `apply_normals=True`.
Note: Normals might not work as intended with morphing.

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.. code-block:: Python


    gltf_obj = glTF(filename, apply_normals=True)


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Get the morph timeline using `morph_timeline` method, Choose the animation
name you want to visualize.
Note: If there's no name for animation, It's stored as `anim_0`, `anim_1` etc

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.. code-block:: Python


    animation = gltf_obj.morph_animation()["TheWave"]


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Call the `update_morph` method once, This moves initialise the morphing at
timestamp 0.0 seconds and ensures that camera fits all the actors perfectly.

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.. code-block:: Python


    gltf_obj.update_morph(animation)


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Create a scene, and show manager.
Initialize the show manager and add timeline to the scene (No need to add
actors to the scene separately).

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.. code-block:: Python


    scene = window.Scene()
    showm = window.ShowManager(
        scene, size=(900, 768), reset_camera=True, order_transparent=True
    )

    showm.initialize()
    scene.add(animation)


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define a timer_callback.
Use the `update_morph` method again, It updates the timeline and applies
morphing).

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.. code-block:: Python



    def timer_callback(_obj, _event):
        gltf_obj.update_morph(animation)
        showm.render()



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Optional: `timeline.play()` auto plays the animations.

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.. code-block:: Python



    showm.add_timer_callback(True, 20, timer_callback)
    scene.reset_camera()

    interactive = False

    if interactive:
        showm.start()

    window.record(scene, out_path="viz_morphing.png", size=(900, 768))


.. _sphx_glr_download_auto_examples_01_introductory_viz_morphing.py:

.. only:: html

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

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

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

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

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


.. only:: html

 .. rst-class:: sphx-glr-signature

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