55 lines
1.7 KiB

.. index:: Geometry Nodes; Evaluate on Domain
.. _bpy.types.GeometryNodeFieldOnDomain:
Evaluate on Domain Node
.. figure:: /images/node-types_GeometryNodeInterpolateDomain.png
:align: right
:alt: Evaluate on Domain Node.
The *Evaluate on Domain* allows evaluating a field for a different :ref:`attribute domain <attribute-domains>`
than the domain from the :ref:`field context <field-context>`. For example, the face index could be used instead
of the face corner index, when setting the values of a :term:`UV Map`
.. note::
This node is not necessary to retrieve data from other attribute domains; that is done automatically.
Its utility comes from the fact that it's possible to control *when* the domain interpolation happens.
Normally, input nodes interpolate their data to the current context's domain as soon as they create
their output.
.. tip::
It may be preferable to use this node over the :doc:`/modeling/geometry_nodes/attribute/capture_attribute`,
since it allows using a specific attribute domain without requiring a geometry socket input,
which allows creating more reusable node groups.
.. seealso::
The method of retrieving data from another domain is somewhat similar to the
The field to evaluate on the chosen attribute domain.
The :ref:`attribute domain <attribute-domains>` used for evaluation of the *Value* input.
The values from the input, evaluated on the chosen domain, then interpolated to the domain from
the :ref:`field context <field-context>`.