# ARGetHitTestZ

## Description

Returns the Z component of the given hit test result in 3D space. Hit test results are ordered with the closest first, starting at index 1. This point should only be used for a short time, for example to display a particle effect, as it will drift relative to the real world. If you plan to use this 3D point to position a long lived object in the world then you should create an anchor from this hit test result instead so that it doesn't drift.

## Definition

float ARGetHitTestZ( index )

float agk::ARGetHitTestZ( int index )

## Parameters

- index - The index of the hit test result to check, starting with index 1.