Color displays as black if Horizon color is too low (Engine Bug)

[ABelliqueux]

If Far color / Horizon color is < 100 (0.10 in blender), the corresponding channel color will display as black.

Example level0.c file :

CVECTOR level0_BGc = { 100, 218, 216, 0 };

results in :

CVECTOR level0_BGc = { 0, 218, 216, 0 };

Might be an error in the linear to RGB conversion function.

Also could be due to psyq dpq calculation. See LibRef47.pdf, p.450 and LibOver47.pdf, p.133, "Light Source Calculation" :

LLV = LLM * v0
LC = BK + LCM * LLV
v2 = (1 - p) * v1 * LC + p * FC

[ABelliqueux]

See here : ABelliqueux/3dcam-headers#1