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The display quality of a scene is poor when its extent contains coordinates of large magnitude. Objects appear to flicker and incorrect hidden surface removal is evident.
Large coordinates, such as UTM, require double precision support but 3D graphics engines support only single precision.
Use on-the-fly projection to set false easting and northing values to center the scene on 0,0. To do this, take the scene's center XY coordinates and subtract them from the existing false easting and northing values of the scene's spatial reference.