Optoma loaned the company two powerful Optoma ProScene EH7700 projectors with ProScene WT2 (wide) lenses.
These WUXGA projectors produce pin-sharp imagery and have a brightness of 7,500 lumens. To ensure the effect was sharp and brilliant on camera, the projectors were stacked with the Chameleon GB-200 to double the brightness.
Colin Byrne, Producer at North One, said: “The Optoma projectors were amazing. I couldn’t believe how just one projector covered the whole frontage of the house and was incredibly effective. We wanted to stack the projectors to ensure the effect was just as stunning when captured on film for the programme.”
Stacking can reduce the overall cost of an installation and increase reliability. A single projector of equivalent brightness is generally more expensive and bulkier. Stacking therefore enhances portability with smaller, lighter units which are easier to transport and install. It improves reliability (if one unit fails, the second unit will still work) and it allows scalability with the ability to add more projectors if a higher brightness is needed.
A photograph was taken of the Gadget Man house, which visual production company, AV3, used as the basis for projection mapping the building. AV3 then created a series of animation sequences including Christmas lights dropping from the balcony, rotating snowman and sparkling holly that would be projected onto the house.
The projectors were placed in exactly the same spot as where the photograph was taken from so that the animation would fit exactly onto the house. To capture the whole of the house the platform for the projectors needed to be set back 20m from the building.
The animations were projected from both projectors. Optoma’s Chameleon GB-200 was then used with auto-stacking software with the images overlaid to create one image with a higher brightness
Tom Harding from AV3 said: “Precision was absolutely key. We carefully marked the location of the spot from which the photograph was taken. It was vital that the projectors were then sited exactly on this spot to get the correct angle and distance to ensure the animation fit perfectly on the house.”