Lohikar fac6d7916c Lighting performance tweaks (#2200) ...

Port of tgstation/tgstation#26975.

Changes the lighting engine to apply lighting changes in one step using stored lum value differences instead of two steps (remove_lum, add_lum).

Seems to show a speedup in lighting updates as well as a reduction in server memory usage due to aggressive freeing of unneeded lists.

Lighting overlays also default to fullbright instead of fulldark so movable area transitions look less strange.

2017-05-15 22:25:13 +03:00

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