The Attribute node allows you to retrieve attributes attached to an object or mesh.
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Name of the attribute.
Specifies the type of the attribute.
The attribute is associated with the geometry of the object, and its value varies from vertex to vertex, or within the volume of the object.
Most geometry attributes are directly accessible through the various input nodes, except for these:
- Ocean Foam
Gives a scalar defining where foam might appear when using an Ocean Modifier. This depends on the name you give this property.
For a full list of options see This Thread on the Blender Stack Exchange.
The attribute name specifies a custom property name, or an RNA path to a built-in property (like the single property driver variables).
The values of attributes of this type are defined once per object. The name or path is looked up first in the object data-block, followed by the mesh data-block if not found. Custom properties have priority over built-in ones.
The property value must be an integer, float, boolean, or a vector of 1 to 4 floats or ints; properties of other types are ignored. If a suitable property is not found, all sockets of the node, including Alpha, output 0.
colorattribute will output the value of the Color field in the Viewport Display panel of the object, unless overridden by a custom property.
Similar to Object, but the attribute is looked up in the instancer particle system settings, followed by Geometry Node instance attributes (searching from the innermost instancing layer to outer ones), and finally in the instancer object. If the current object is not instanced, or the property is not found, it falls back to the Object mode.
Currently only up to 4 layers of Geometry Node instancing are searched.
- View Layer:
The attribute is looked up in the current View Layer, Scene and World, using the same lookup logic as Object. Attributes of this type have the same uniform value throughout the whole Render Layer.
This gives access to a number of useful built-in properties, for example:
Outputs the value of the Color field in the Viewport Display panel of the World properties.
Outputs the current rendering resolution.
Outputs the effective field of view of the active Camera.
RGB color interpolated from the attribute.
XYZ vector interpolated from the attribute.
Scalar value interpolated from the attribute.
Alpha channel of the attribute, when available. If the attribute has no alpha channel, generally defaults to 1.
Currently, only View Layer attributes are supported in shaders used for the World or Light Objects.