Optimizing RigelEngine's OpenGL rendering for the Raspberry Pi – Lethal Guitar
April 24, 2021 16 Minutes While working on RigelEngine, performance was mostly a non-issue. Modern computers are so powerful that a 2D game from the early 90s is no match for them. My gaming PC easily runs the game at well over 3000 FPS when uncapping the frame rate, and a 6 year old MacBook Pro still runs at more than 400 FPS. But it’s a different story on the Raspberry Pi. When I first tried running RigelEngine on a Pi 3 model B, it only managed around 15 to 17 FPS when in-game. After a round of optimizations, it now runs at a stable 60 FPS (v-sync on) at 1080p resolution on both ...
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