[icecoldduke]

What I want to use is something like ESARGAN or something similar to upscale dynamically created light maps that are created async at runtime.

ESARGAN, TopazAI etc are best at doing real life image upscaling, because there AI models are trained that way. Yes you can get 30 to 60% good quality ups along by shoving Duke sprites or lightmaps through public ally released ESARGAN models but they don’t deal with stylised art that we’ll. I’m doing research to see if I can fix that problem for the above purpose.

[Phredreeke]

Antialiasing before upscaling is key for good results. The resulting upscale is softer but looks far better once you've applied some sharpening (third pic)

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