Professional Lighting & Production - Summer 2018 | Page 27

The translucent light columns at both ends of the corridor were an early cornerstone for the Pinetree Way project. “Coquitlam is very wooded and known for its natural beauty, but has been growing pretty quickly with the SkyTrain and other major developments, so it was about combining those two ideas in one sculpture,” Bedard reinforces. “The fabricator did a pretty spectacular substructure of rigid steel armature, and it’s not easy to get acrylic in that size [for the lit upper portion] in a way that made this serviceable and UV stable and all of that, so actually, there are two access hatches at the bottom built into the bark that can open up for electrical connections to all of the LED strings.” Color Kinetics’ iColor Flex LMX gen2s, which are flexible strands of large, high-inten- sity LED nodes with intelligent colour, deliver the effect. The nodes are aligned in channels and run up a structural frame wrapping the central internal column that routes the leader cable. Surrounding the nodes is a thin light- reflecting screen, which itself is surrounded by an outer layer of acrylic with light-altering film applied to its interior. “The big thing for this was maximizing the impact by maximizing the pixel pitch, though we didn’t want it to look like just round pixel screens,” Bedard explains. “We didn’t want to see the nodes or the individual pixels, so that diffu- sive film was important to create that continu- ous light spectrum within the column.” Programming for the features was done in Madrix 3D in order to realize the desired 3D effect. “This was the first time we were working with three-dimensional effects in virtual lighting, as we wanted a way to create a base colour with motion where we could still add a sparkle that seemed to be on top of it, moving through it,” Bedard explains. “We had a 3D patch of the lights inside the columns, and were able to get independent motion between the colour wash and sparkle, so it was basically like having two layers to manipulate, and the effect was enhanced by the holographic film that adds a whole new element.” Bedard says the “aha” moment in fully realiz- ing the effect they envisioned came when they decided to pull some pixels out for contrast – basically, adding black to bring more depth out of the active nodes. “It started to look like it was generating natural light, rather than just being a pixel screen. You could see the pattern of the pixels, but when we only had 60 or 70 per cent of the nodes on in a kind of continuous slow motion, it had more of a natural and ephemeral look to it.” The colours, movement, and intensity of the lights are triggered by motion- and ob- ject-tracking via a complement of IP cameras and based on the type of transit that triggers it, with different themes for pedestrians and cyclists on the sidewalks, motor vehicles on the roadway, the SkyTrain travelling along the guideway, or a multi-modal feature for multiple stimuli. Eos Lightmedia’s Director of Design, Shaun August, developed a custom software platform that reads the camera input, defines control parameters based on the desired stimuli, and sends that information to the cue servers. Pinetree Way guideway column lighting Summer 2018 | 27