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# SCNHitTestOption

Options affecting the behavior of SceneKit hit-testing methods.

```
struct SCNHitTestOption
```

## Topics

### Options

[`backFaceCulling`](/documentation/SceneKit/SCNHitTestOption/backFaceCulling)

An option to ignore faces not oriented toward the camera.

[`boundingBoxOnly`](/documentation/SceneKit/SCNHitTestOption/boundingBoxOnly)

An option to search for objects by bounding box only.

[`categoryBitMask`](/documentation/SceneKit/SCNHitTestOption/categoryBitMask)

An option to search only for objects matching a specified bitmask.

[`clipToZRange`](/documentation/SceneKit/SCNHitTestOption/clipToZRange)

An option to search for objects only within the depth range of the current point of view.

[`ignoreChildNodes`](/documentation/SceneKit/SCNHitTestOption/ignoreChildNodes)

An option to ignore child nodes when searching.

[`ignoreHiddenNodes`](/documentation/SceneKit/SCNHitTestOption/ignoreHiddenNodes)

An option to ignore hidden nodes when searching.

[`rootNode`](/documentation/SceneKit/SCNHitTestOption/rootNode)

The root of the node hierarchy to be searched.

[`searchMode`](/documentation/SceneKit/SCNHitTestOption/searchMode)

An option for the number and order of hit test results to provide.

[`SCNHitTestSearchMode`](/documentation/SceneKit/SCNHitTestSearchMode)

Possible values for the [`searchMode`](/documentation/SceneKit/SCNHitTestOption/searchMode) option used with hit-testing methods.

### Deprecated

[`firstFoundOnly`](/documentation/SceneKit/SCNHitTestOption/firstFoundOnly)

An option to return only the first object found.

[`sortResults`](/documentation/SceneKit/SCNHitTestOption/sortResults)

An option to sort the results of a hit-test.

## See Also

[`hitTestWithSegment(from:to:options:)`](/documentation/SceneKit/SCNNode/hitTestWithSegment(from:to:options:))

Searches the node’s child node subtree for objects intersecting a line segment between two specified points.


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