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.. _bpy.types.ShaderNodeVolumeInfo:
****************
Volume Info Node
****************
.. figure:: /images/node-types_ShaderNodeVolumeInfo.webp
:align: right
:alt: Volume Info Node.
The *Volume Info* node provides information about *Smoke Domains*.
Inputs
======
This node has no inputs.
Properties
==========
This node has no properties.
Outputs
=======
Color
Gives the color of the smoke inside the :doc:`Fluid Domain </physics/fluid/type/domain/index>`.
The color and vector outputs are the same. The Factor output is an average of the channels.
Density
Gives a scalar defining the density of any smoke inside
the :doc:`Fluid Domain </physics/fluid/type/domain/index>`.
Flame
Gives a scalar defining the density of any fire inside
the :doc:`Fluid Domain </physics/fluid/type/domain/index>`.
All three outputs are the same.
Temperature
Gives a scalar defining the temperature of the volume. Values in the range 0 - 1 map to 0 - 1000 kelvin.
This may be used to render physically-based fire with the Blackbody or Principled Volume shaders.
All three outputs are the same.
Example
=======
.. figure:: /images/render_shader-nodes_input_volume-info_example.jpg
Smoke density.
.. figure:: /images/render_shader-nodes_input_volume-info_example-fire.jpg
Computing the color of fire using the *Blackbody* node.
Since the *Blackbody* node expects its input in Kelvin,
the temperature output has to be remapped first.
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