1. A projection system that comprises: a display that renders a video representing a sequence of original images each having a corresponding frame interval, the rendering performed by displaying a plurality of subimages in each frame interval that average to approximate an original image corresponding to that frame interval; and at least one viewing device that attenuates each said subimage by a respective coefficient to synthesize a target image for each frame interval for a user of said viewing device, at least one of said respective coefficients being in a range between zero and one.