For Fröjdman, creating the flyover effect was like assembling a puzzle. He began by colorizing the photographs (HiRISE captures images in grayscale). He then identified distinctive features in each of the anaglyphs—craters, canyons, mountains–and matched them between image pairs. To create the panning 3-D effect, he stitched the images together along his reference points and rendered them as frames in a video. "It was a very slow process," he says.
When I was a kid, my mind was blown by Isaac Asimov's VHS wonder, Voyage to the Outer Planets and Beyond, which (at least in some versions, if not the one you can find on YouTube), included the NASA Jet Propulsion Lab's 1980s Mars flyover animation: my first encounter with the glitchy, transfixing, uncanny quality of real data from another world. How far we have come, yet not gone.