# Raycast Node

The *Raycast* node intersects rays from one geometry onto another. The source geometry is defined by
the context of the node that the *Raycast* node is connected to.
Each ray computes hit points on the target mesh and outputs normals, distances
and any surface attribute specified.

## Inputs

- Target Geometry
Geometry that rays are tested against.

- Attribute
An optional field input evaluated on the

*Target Geometry*that will be interpolated at the hit points. The resulting values are outputted with the*Attribute*output.- Source Position
The position from where to start each ray. By default, this is the same as if the Position Node was connected.

- Ray Direction
Direction of each ray from the starting position. The field is evaluated on the geometry from the context of the field evaluation, not the

*Target Geometry*.- Ray Length
Maximum distance a ray can travel before being considered “no hit”.

## 특성

- Mapping
How attributes of the target mesh are mapped to the attribute values on the result geometry.

- Interpolated
Vertex and corner attributes are interpolated smoothly, with a bilinear function.

- Nearest
Choose the value of the closest vertex without interpolating.

## Outputs

- Is Hit
Boolean output that is true for each ray which has hit the

*Target Geometry*.- Hit Position
The location of the intersection point with the target mesh.

- Hit Normal
The surface Normal vector at the hit location.

- Hit Distance
The distance from the ray origin to the

*Hit Position*.- Attribute
Interpolated values of the

*Attribute*input sampled at the*Hit Position*.