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.. DO NOT EDIT THIS FILE, but the VisualShaderNodeVectorRefract.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.

.. _class_VisualShaderNodeVectorRefract:

VisualShaderNodeVectorRefract
=============================

**Inherits:** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`

Returns the :ref:`Vector3<class_Vector3>` that points in the direction of refraction. For use within the visual shader graph.

Description
-----------

Translated to ``refract(I, N, eta)`` in the shader language, where ``I`` is the incident vector, ``N`` is the normal vector and ``eta`` is the ratio of the indices of the refraction.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`