#48 EF_DARKLIGHT effect casts incorrect dynamic light in GL mode

[Shanjaq Astraljam]

Repro:
in hcc, spawn an entity and set entity.effects = EF_DARKLIGHT

Expected:
should produce negative illumination in both Software and OpenGL rendering

Actual:
produces negative illumination in Software Rendering but positive illumination in OpenGL

Example:
https://www.youtube.com/watch?v=b1M1iihEdsk

(note that the randomly appearing dynamic lights on the floor are supposed to appear as dark fields)

[Ozkan Sezer]

You applied https://github.com/Shanjaq/uhexen2/commit/3d65dab447a86a5173b19c5d3e0e8562b10d9526
for this. Are there any further updates for it or is it your final version to fix this?

[Shanjaq Astraljam]

seems to be working, I use the effect a lot in Peanut so it's been tested quite a bit.

[Ozkan Sezer]

Patch is now applied to git. Thanks.