What Werewolf12345 is basically saying is that he does'nt uderstand the math, and if hes does'nt understand it its probable that alot of other people won't either.
I also don't get some of those numbers!
Dumb it down for us.

screen physical damage = 1000
each type of elemental damage from gear, skill and charms = Cow king boots, x2 sojs, sc 1-2 cold damage (fire 25-35) (cold 1-2) (light 2-24) (psn)
the pvp penalty (17% of screen damage) = (physical damage) + (fire)(cold)(light (psn)
15% DR from string = damage reduced from ___ to ___ (physical damage)
THe MDR from string and viper = 28
The individual elemental damage (25-35) (1-2) (2-24) MDR'd =
End Result = ___

This post was edited by ferdia on Aug 28 2011 05:27am

n1 cada

Here's the order of damage calculations in case some of you don't fully understand the concept.



Source: http://forums.d2jsp.org/topic.php?t=45978417&f=87


...and poison damage isn't affected by this glitch.

This post was edited by Mr_Puddles on Aug 28 2011 07:30am

ill break it down into parts so you can see each individual equation and the result



physical damage = 1000
1000 x .17 = 170

170 damage is the amount of damage that would go through to the opponent if there were no other sources of resistance such as physical damage reduce (DR or PDR) or resists (percentage damage reduce, i.e. stormshield, string of ears, etc...)

in the event of cowkings boots, dual stones of jordan, and a small charm with 1-2 cold damage on the attacker, and string of ears plus skin of the vipermagi on the opponent being struck (totaling 28 mdr, 15% physical damage resistance), this is the damage that would result in the scenario where the attacker hits with 24 lightning damage, 35 fire damage, and 2 cold damage.

[(listed ele dmg * 0.17) - mdr given] = mdr converted into pdr

lightning damage = 24

[(24 x .17) - 28] = -23

fire damage = 35

[(35 x .17) - 28] = -22

cold damage = 2

[(2 x .17) - 28] = -27


those 3 sources of elemental damage total up to 72 elemental damage overkill on your MDR, which then gets converted to PDR ( <- this is the bug) which takes away from your original total of 170 physical damage

170 - 72 = 98

then at this point we would factor in physical damage resistance from string of ears

98 - 15% = 83

end damage taken = 83

had there been zero sources of elemental damage, the opponent would have taken 144 damage. that is around a 40% damage loss

/e: i didnt factor resists into this at all, they were all assumed to be at zero resist for each element. at 75 resist, the damage loss would be even greater

This post was edited by bigspot_05 on Aug 28 2011 07:46am

to format it like ferdia asked for:

screen physical damage = 1000
each type of elemental damage from gear, skill and charms = Cow king boots, x2 sojs, sc 1-2 cold damage (fire 25-35) (cold 1-2) (light 2-24)
prior to the pvp penalty, max damage =1000+35+24+2
after the pvp penalty, damage = 170 + 5 + 4 +0
The MDR from string and viper = 28
The individual elemental damage after MDR = -22-23 -27
Amount of MDR overkill, which in turn adds itself to PDR = 72
End result factoring in PDR and physical damage resistance (string of ears 15%) = 83
End result had there been zero elemental damage = 144
Damage difference = 61 or roughly 42%

This post was edited by bigspot_05 on Aug 28 2011 07:54am

The formula should be:

Quote (Mr_Puddles @ Jun 13 2010 11:11am)
(listed physical damage * 0.17) - [mdr given - (listed ele dmg * 0.17)] = pvp dmg

much thx bigspot_05.

That difference really only matters if the ele damage is higher than the mdr, so for this thread, it doesn't mean anything and would just confuse people. Trying to simplify things, not make them harder. And it would actually make it easier if you just switched the )-[ to a )+[

(listed physical damage * 0.17) + [(listed ele dmg * 0.17)-mdr given] = pvp dmg


physical + leftover ele dmg after mdr = pvp dmg
or
physical - - leftover ele dmg after mdr = pvp dmg

The difference matters for all cases.

I don't know about other people, but for me, Mr_Puddles's formula is straight forward with the right order that I corrected, while your "leftover" damage approach is quite confusing.

The 'leftover' damage IS the bug though, so deal with it.

I think you are right on this though. And that's probably how the formula was programmed, just that the programmer forgot to add something like this:

IF ele damage < MDR, THEN ignore the whole MDR thing.

And that's the reason why MDR bug exist. Not because some idiot programmed a "leftover" damage somewhere in it.

But since we are trying to explain the mdr BUG and how it has a negative effect on pvp damage, it is probably easier to understand with a "-" instead of "+".