The camera viewing direction (unit, pointing away from the viewer into the scene) for silhouette detection. For a cardinal axis it is the −axis (or +axis when flipped); for a custom plane it follows the plane normal.
The camera viewing direction (unit, pointing away from the viewer into the scene) for silhouette detection. For a cardinal axis it is the −axis (or +axis when flipped); for a custom plane it follows the plane normal.