Abstract: Techniques and architectures involve operating an array of slide projectors having respective brightnesses controlled by a computer. Such an array of slide projectors may be arranged to project their respective images onto a surface so that the respective images substantially overlap with one another on the surface and produce an integrated image. By judicious selection of slides and by judicious control of the brightness of the respective slide projectors, such an integrated image may render a video or an appearance of motion or other dynamic effect.