STR - VIT Difference Function

==fSTR==
fSTR is the damage bonus/penalty from your STR - monster VIT for melee attack
*Melee attacks need roughly 4~6 STR to increase fSTR value by 1.
*When STR-VIT value is high, fSTR can be approximated by ((your STR - monster VIT)+4)/4.
*fSTR's lower and upper cap values are affected by weapon rank.
:The lower cap of fSTR is - Weapon Rank
::Exception: Rank 0 weapons have lower cap -1. 
:The upper cap of fSTR is ( weapon rank+8).
Example:
:Juggernaut is a rank 5 weapon (int(46/9) = 5). Therefore the possible fSTR value of Juggernaut ranges from -5 to 5+8=13.
==fSTR2==
fSTR2 is the damage bonus/penalty from your STR - monster VIT for ranged attack.
*It takes roughly 2~3 more STR to increase fSTR2 by 1 depending on how big your STR - mob VIT value is.
*When STR-VIT value is high, fSTR2 can be approximated by (your STR - monster VIT+4)/2 and
*fSTR2's lower and upper cap values are affected by weapon rank.
:The lower cap of fSTR2 is - (Weapon Rank) x 2. 
::Exceptions:
:::Rank 0 weapons have lower cap -2.
:::Rank 1 weapons have lower cap -3.
:The upper cap of fSTR2 is ( weapon rank+8) x 2.
Example:
: Hellfire +1 is a rank 4 weapon (int (42/9) = 4). Therefore the possible fSTR2 value of Hellfire+1 ranges from -4x2= -8 to (4+8)x2 = 24.
==fSTR(2) Approximation Table==
fSTR and fSTR2 can be approximated using the following table. 
In table below, dSTR(delta strength) value denotes your STR - monster VIT.
===The table===
dSTR range
fSTR approximation 
fSTR2 approximation 
12 or greater
(dSTR + 4) / 4
(dSTR + 4) / 2
6 to 11
(dSTR + 6) / 4
(dSTR + 6) / 2
1 to 5
(dSTR + 7) / 4
(dSTR + 7) / 2
-2 to 0
(dSTR + 8) / 4
(dSTR + 8) / 2
-7 to -3
(dSTR + 9) / 4
(dSTR + 9) / 2
-15 to -8
(dSTR + 10) / 4
(dSTR + 10) / 2
-21 to -16
(dSTR + 12) / 4
(dSTR + 12) / 2
-22 or less
(dSTR + 13) / 4
(dSTR + 13) / 2
Lower and Upper cap occurence:
fSTR and fSTR2 hit:
*Lower cap value at dSTR = -(7 + weapon rank x2) x2.
*Upper cap value at dSTR = (14 + weapon rank x2) x2.
== See also ==
*Weapon Rank
*Calculating Weapon Skill Damage
*Calculating Blood Pact Damage
*Calculating Blue Magic Damage
Category:Guides