Interesting point, but we're talking about 100's or 1000's of FLOP's per tile which we avoid if the tile isn't visible. FLOP's chew through a lot of CPU/GPU cycles and therefore power where as I'd imagine it was mostly integer math to determine visibility and only the need to 3 corner points (if they're triangular polygon tiles)
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.