Update a sunglass model based on face landmarks

I am using MediaPipe Face Mesh to extract face landmarks using webcam input. Then I load a 3D sunglass model and display it on top of the webcam input. Assuming I have 3 key landmarks points of the face (one above the nose, and two above the ears) I want to position and rotate the sunglass model based on these three points.

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Have you found any solution?