Watch out for any nearby surfaces with these properties reflecting light onto your scene. (e.g.,sometimes even a shiny table can bounce light. You would want to cover the table with a fabric cloth.)
Projecting through glass.
Being too close or far away.
Surfaces that are too dark or too black (Solution:Bring the surface closer to the projector +Lightform device, try a lighter surface, or try a brighter projector).
Environment is too bright, too dim, or has too much direct sunlight (Solution: Move to a darker or shaded environment if too bright.Adjust brightnessin Scan Properties for dark environments).
Occlusions: scenes that have many parts that can only be seen by the camera OR the projector, but not both (Solution: These occluded parts of a scene will attempt to be filled in by the hole filling. Try adjusting the "Fill" slider to find the right amount of hole filling).