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class_visualshadernodefaceforward.rst

class_visualshadernodefaceforward.rst 972 B
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  3. .. Generated automatically by doc/tools/makerst.py in Godot's source tree.
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  4. .. DO NOT EDIT THIS FILE, but the VisualShaderNodeFaceForward.xml source instead.
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  5. .. The source is found in doc/classes or modules/<name>/doc_classes.
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  7. .. _class_VisualShaderNodeFaceForward:
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  9. VisualShaderNodeFaceForward
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  10. ===========================
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  12. **Inherits:** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`
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  14. Returns the vector that points in the same direction as a reference vector within the visual shader graph.
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  16. Description
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  17. -----------
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  19. Translates to ``faceforward(N, I, Nref)`` in the shader language. The function has three vector parameters: ``N``, the vector to orient, ``I``, the incident vector, and ``Nref``, the reference vector. If the dot product of ``I`` and ``Nref`` is smaller than zero the return value is ``N``. Otherwise ``-N`` is returned.
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