alt Hacker NewsSince Doom renders the image with vertical columns of pixels (floor, lower wall, portal if exists continues rendering the other sector, then upper wall then ceiling) and since browsers are very good at drawing the sprites out of larger textures... You could send vertical divs shaded with the sector light level and picking the correct textures. Instead of hundreds per column you will have like 5 divs on average per column and they will be textured shaded and scaled by the browser?
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IIRC someone did exactly that around 15 years ago, a game renderer using div strips, first with Wolfenstein and then Doom. It may have been "Jacob Seidelin" who was very active experimenting with early HTML5 tech, but I've lost all links or they've vanished from the web - I only keep two screenshots I used in a lecture back then.
At that point just run the browser on the server and use proper cloud gaming tech to stream the screen and have low-latency interactivity.
I believe he stated in the beginning pretty clearly that the point of this exercise was to stress test the Liveview performance.
Making this more efficient would be kinda counter productive