How can we extract the colour values for triangles specified by triangleIndices on an ARFaceGeometry using ARKit?
I have seen posts about applying the colour mesh onto a 3D face model (https://developer.apple.com/documentation/arkit/content_anchors/tracking_and_visualizing_faces, iOS11 ARKit: Can ARKit also capture the Texture of the user's face?). But once the coloured mesh is formed, is there a way to get the colours on each of the triangles of the face? (Or any alternative way that would do it without rendering the coloured face mesh?)
Really appreciate an answer on this front!
