You can never have too many projectors if you blend the variety of types, movement, colors, and patterns. In general, outdoors, one or more projectors are located at least every 20 to 40 feet along the area you will be viewing from. Indoors variety of effects is usually the goal. On very large buildings at least one or more Bliss 15 or Bliss 50s spaced every 40 feet projecting to surfaces up to 40 feet away. Get the projectors on site before events to experiment to get the best results.
