In this series we explore how to do illumination in your polygon-based texture-mapping 3D renderer. This time we focus on realistic diffuse lightmaps. We use nothing but standard C++20 (and libSDL for 2D graphics).

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Music list (s = SPC-OPL conversion):
— Picnic & 月の丘 — ノスタルジア — 甘茶  (nostalgiamusic.info)
— Lufia II — Last Duel (s)