Sample Index Node

Sample Index node.

The Sample Index node retrieves values from a source geometry at a specific index.

Совет

If the Geometry used for the input is the same as the geometry from the field context, this node is equivalent to the Узел Field at Index. Using that node is usually preferable since avoiding the geometry socket makes the whole setup easier to use in other situations and share.

Совет

Different components can have same attribute domain (Points). This node simply uses first component that not empty for such domain, checked in the order of: Mesh, Point Cloud, Curve. The Узел Separate Components can be used to sample directly from a specific component.

Входы

Geometry (геометрия)

Геометрия, из которой извлекается атрибут.

Value

A field to evaluate on the source Geometry. The values are then retrieved from specific indices for the output.

Index

Which index to use when retrieving the data from the input Value field. Any index can be connected, resulting in a «shuffling» of the values.

Свойства

Тип данных

The data type to use for the retrieved values.

Domain

Домен атрибута, из которого передаётся атрибут, или, другими словами, домен, используемый для оценки входа Attribute. Например, можно перенести данные с граней одной геометрии на точки другой.

Clamp

Clamp the indices to the size of the attribute domain instead of outputting a default value for invalid indices.

Выходы

Value

The data retrieved from the source Geometry input.

Примеры

../../../_images/modeling_geometry-nodes_sample_index-example.png

Here the node is used to copy the positions of one object to another. This recreates the behavior of the Transfer Attribute node from Blender versions before 3.4. This works best when their geometries have the same number of points and the same Topology.