I was tasked with getting blending 6 projects seemlessly on a curved wall that had port holes cut into it. In addition, we needed to provide the 3D animator with the final resolution of the video and the location of the port holes as the animation was going to interact with them.
The first challenge was selecting the technology to handle the projector warping and blending. Because of the size of the room and our commitment to image quality, we wanted a server that could also handle the native resolution of the combined 6 projectors (6144 x 768). After days of researching and contacting various vendors, we finally selected the Pixel Warp server, provided by Pixel Wix. While their server at the time maxed out at 3 projectors, it was able to frame accurately sync with other servers. And with the price of the server, i was able to recommend a 3rd server as a backup and still come in under budget.
The next step was warping and blending the projectors in order to map out where the port holes where. Because the Pixel Warp server supported live video, we were able to run an HDMI output from After Effects into the servers, which allowed us to in real time draw masks and place markers on each individual projector, which was then combined into one image for the animator. When the animation was rendered out, I split the video into 2 files and finalized the edge blending.