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{{Tip|Be aware that page is not final. Thus do not fully rely on written subjects, until this message is here!}}
→Flares data
= Introduction =
D .. background sRGB color, we assume middle gray #808080
b .. recomputed alpha
The old blending expression:
OLD = S * a + D * (1 - a)
The new blending expression:
NEW = sRGB(rgb(S) * b + rgb(D) * (1 - b))
Alpha which would result in the same final value after blend:
b = (rgb(OLD) - rgb(D)) / (rgb(S) - rgb(D))
Flare unit (usually found as hookup defined models inside '''/unit/hookup''' directory) got new functionality of manual curve definition for flare scaling, with two new float attributes:
* '''scaling_start_scalescaling_start_distance''' - defines distance at which flare scaling starts.* '''scaling_end_scalescaling_end_distance''' - defines distance at which flare scaling ends, flare scale reaches '''scale_factor'''.
Note that both of those attributes hold distance in meters and that they won't be used unless '''scale_factor''' is bigger then 1.0.
