.. meta::
   :description:
        Page about the quadratic blending modes in Krita: Freeze, Freeze-Reflect, Glow, Glow-Heat, Heat, Heat-Glow, Heat-Glow/Freeze-Reflect Hybrid, Reflect and Reflect-Freeze.

.. metadata-placeholder

   :authors: - Wolthera van Hövell tot Westerflier <griffinvalley@gmail.com>
             - Reptorian <reptillia39@live.com>
   :license: GNU free documentation license 1.3 or later.

.. index:: Quadratic
.. _bm_cat_quadratric:

Quadratic
---------

.. versionadded:: 4.2

The quadratic blending modes are a set of modes intended to give various effects when adding light zones or overlaying shiny objects.

.. _bm_cat_freeze:

.. index:: ! Freeze Blending Mode

Freeze
~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Freeze" in English.

The Freeze blending mode. Inversion of the Reflect blending mode.

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Freeze_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Freeze**.

.. _bm_cat_freeze_reflect:


Freeze-Reflect
~~~~~~~~~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Freeze-Reflect" in English.

Mix of Freeze and Reflect blending modes.

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Freeze_Reflect_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Freeze-Reflect**.

.. _bm_cat_glow:

Glow
~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Glow" in English.

The Reflect blending mode with source and destination layers swapped. 

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Glow_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Glow**.

.. _bm_cat_glow_heat:

Glow-Heat
~~~~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Glow-Heat" in English.

Mix of Glow and Heat blending modes.

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Glow_Heat_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Glow_Heat**.

.. _bm_cat_heat:

Heat
~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Heat" in English.

The Heat blending mode. Inversion of the Glow blending mode.


.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Heat_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Heat**.

.. _bm_cat_heat_glow:

Heat-Glow
~~~~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Heat-Glow" in English.

Mix of Heat, and Glow blending modes.

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Heat_Glow_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Heat-Glow**.

.. _bm_cat_heat_glow_freeze_reflect:

Heat-Glow and Freeze-Reflect Hybrid
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Heat-Glow and Freeze-Reflect Hybrid" in English.

Mix of the continuous quadratic blending modes. Very similar to Overlay, and sometimes provides better result than Overlay.

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Heat_Glow_Freeze_Reflect_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Heat-Glow and Freeze-Reflect Hybrid**.

.. _bm_cat_reflect:

Reflect
~~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Reflect" in English.

Reflect is essentially the Color Dodge blending mode with quadratic falloff.


.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Reflect_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Reflect**.

.. _bm_cat_reflect_freeze:

Reflect-Freeze
~~~~~~~~~~~~~~

.. only:: non_english

   .. hint:: This blending mode is called "Reflect-Freeze" in English.

Mix of Reflect and Freeze blending modes.

.. figure:: /images/blending_modes/quadratic/Blending_modes_Q_Reflect_Freeze_Light_blue_and_Orange.png
   :align: center

   Left: **Normal**. Right: **Reflect-Freeze**.