How do I convert a HandAnchor's position to 2D screen position
Asked on 09/17/2024
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To convert a HandAnchor's position to a 2D screen position, you would typically follow these steps:
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Acquire the HandAnchor's 3D position: Use ARKit to get the hand anchor's position in 3D space. This involves setting up spatial tracking and obtaining the hand anchor data.
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Transform the 3D position to screen space: Use the scene's projection matrix to transform the 3D coordinates of the hand anchor into 2D screen coordinates. This involves multiplying the 3D position by the view and projection matrices to get the position in screen space.
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Use the appropriate APIs: In visionOS, you can use the compositor services API to get the necessary transforms. The session "Render Metal with passthrough in visionOS" discusses how to acquire and use these transforms for rendering content in mixed reality environments.
For more detailed information, you can refer to the session Render Metal with passthrough in visionOS (14:49) which covers trackable anchor prediction and how to handle transformations for rendering content.
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