Tones Map node
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The **Tones Map** node is variadic and remaps 3D textures, given input and output tone intervals.
If necessary, the remap operation is extrapolated linearly beyond the specified intervals.

.. image:: images/node_3d_texture_tones_map.png
	:align: center

Inputs
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The **Tones Map** node accepts one or more 3D input textures.

Outputs
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The **Tones Map** node outputs one or more 3D textures.

Parameters
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The **Tones Map** node accepts 4 parameters:

* the minimum and maximum input tones

* the minimum and maximum output tones
