This patch allow for reduced spell hunger for all spell casters with high enough INT (not only wizards). An "hunger intelligence" is computed as follow: Then, race is taken into account: Then skills may further reduce any penalty by 1 (basic), 2 (skilled) or 3 (expert).
Spell hunger is then reduced by 10% per point of hunger intelligence above 15.

Roughly speaking, the result is has following:

This is mainly intended to allow starting mages to use their sphere spell without strarving too early.