.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "_gallery/validation/validate_blend_ordered2.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download__gallery_validation_validate_blend_ordered2.py>`
        to download the full example code.

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

.. _sphx_glr__gallery_validation_validate_blend_ordered2.py:


Validate transparency for the ordered2 blend mode
=================================================

Display 4 semi-transparent planes::

            //             |         |         |         |
    camera ((              |         |         |         |
            \             |         |         |         |

                         green1    red1     green2     red2

The order of rendering is: green1, red1, red2, green2

Since the latter two planes are out of order, they will be blended differently,
depending on the blend-mode.

There are also two vertical dark-blue strips. One opaque and one transparent.
These represent a dark object with an anti-aliased edge. This object is drawn
last, to demonstrate the dark artifacts from aa edges.

.. GENERATED FROM PYTHON SOURCE LINES 23-74



.. image-sg:: /_gallery/validation/images/sphx_glr_validate_blend_ordered2_001.webp
   :alt: validate blend ordered2
   :srcset: /_gallery/validation/images/sphx_glr_validate_blend_ordered2_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    # Note: we can either copy this example for different blend modes,
    # or make this a multi-viewport example once we can use multiple blend-modes
    # in one canvas.

    from wgpu.gui.auto import WgpuCanvas, run
    import pygfx as gfx


    canvas = WgpuCanvas(size=(600, 600))
    renderer = gfx.renderers.WgpuRenderer(canvas)
    renderer.blend_mode = "ordered2"

    scene = gfx.Scene()
    scene.add(gfx.Background.from_color("#000"))

    geometry = gfx.plane_geometry(100, 50)
    geometry_strip = gfx.plane_geometry(20, 200)

    strip_opaque = gfx.Mesh(geometry_strip, gfx.MeshBasicMaterial(color=(0, 0, 0.5, 1)))
    strip_transp = gfx.Mesh(geometry_strip, gfx.MeshBasicMaterial(color=(0, 0, 0.5, 0.5)))

    plane_g1 = gfx.Mesh(geometry, gfx.MeshBasicMaterial(color=(0, 1, 0, 0.3)))
    plane_g2 = gfx.Mesh(geometry, gfx.MeshBasicMaterial(color=(0, 1, 0, 0.3)))
    plane_r1 = gfx.Mesh(geometry, gfx.MeshBasicMaterial(color=(1, 0, 0, 0.3)))
    plane_r2 = gfx.Mesh(geometry, gfx.MeshBasicMaterial(color=(1, 0, 0, 0.3)))

    strip_opaque.local.position = 10, 0, 0
    strip_transp.local.position = 21, 0, 0
    strip_transp.local.scale_x = 0.1

    plane_g1.local.position = 0, -25, 80
    plane_r1.local.position = 0, 0, 60
    plane_g2.local.position = 0, 25, 40
    plane_r2.local.position = 0, 50, 20

    scene.add(plane_g1, plane_r1, plane_r2, plane_g2)
    scene.add(strip_opaque, strip_transp)

    camera = gfx.OrthographicCamera(150, 150)
    camera.local.position = (50, 5, 200)
    camera.look_at((0, 10, 0))


    canvas.request_draw(lambda: renderer.render(scene, camera))


    if __name__ == "__main__":
        print(__doc__)
        run()


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

   **Total running time of the script:** (0 minutes 0.179 seconds)


.. _sphx_glr_download__gallery_validation_validate_blend_ordered2.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: validate_blend_ordered2.ipynb <validate_blend_ordered2.ipynb>`

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

      :download:`Download Python source code: validate_blend_ordered2.py <validate_blend_ordered2.py>`

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

      :download:`Download zipped: validate_blend_ordered2.zip <validate_blend_ordered2.zip>`


.. only:: html

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

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_