Hi!
I’ve looked around and haven’t found the information or maybe I’m bad at searching?
How does the “… based on durability” mechanic work when the item is “Indestructible”? My guess is that the item is always at 100%, therefore the bonus is always at max?
For instance, “Healing increased by up to 20% based on Durability” is always at 20% when the item is Indestructible.
Am I wrong?
Thanks!
Yea, it’s always 100% in such case.
base durability isnt a percentage its a flat number and able to be over 100.
using OPs example,
an item is able to have 125/125 base durability, so “Healing increased by up to 20% based on Durability” would = +25 healing (assuming you’re fully repaired). or if it was 100/100 base it would = +20 healing.
the big question for me is what happens to your base durability once you make the item indestructable? once the enchant goes on you can no longer tell what the base number is as the graphic is replaced by an infinity sign.
if you make a 125 durability item indestructable does it still have 125 base durability or does it get normalised to 100? it feels like an oversight to me that theres no way to see this in game.
conclusion:
in the example we had +25 healing at 125 durability vs +20 healing at 100 durability.
if you started with a 125 durability item and indestructible does set your base durability to 100 you lost 20% of your +X to healing in the end resault by adding indestructible. which is quite a lot to be unsure of/not have presented to you in a readable way.
if indestructable dosnt change the base durability it still makes any durability component of the tooltip unreadable as you would have to remember what the base was before you added the indestructable mod.
imo it would be a great change to have durability on an indestructable item shown as “infinity/base” rather than just “infinity”
It’s bonus*current_durability/max_durability
yupyup thats the formula to find the percentages that i gave in my example.
my point is that in game on an indestrucible item what we’re presented with is
bonus*unknown/infinity
It’s just bonus*max/max.
edit: aite got my stupid brain around it. what bonus * current/max being the formula means is that the tooltips are incorrrect in calling it a % increase. i beleave my thesis above is correct? a 20% increase on 100 is 20 and a 20% increase on 125 is 25 . so the tooltips is incorect in calling the enchantment a 20% increase if the formula is bonus*current/max…
if its the formula you say 20% on 100 and 125 base durability are both +20
if it was actually a % increase 20% on 100 would be 20 and 20% on 125 would be 25.
so we’re wrong to be calling it a % increase on the tooltip no?
its just an increase of 20, not 20%…
Durability is just a component of linear scaling that is used to modify the target bonus of whatever stat out there.
target_stat * (1 + bonus% * durability / max_durability )
Nothing more, nothing less.
ok i got it durability is just moving the bonus between its min and max. /bow thanks for the help you have ungodly patience! 
Yea, also fixed that line above, was a bit too fast =)
i just got confirmation from someone who tested it, saying it is based on percentage, not on total numbers: 300 hours ingame feedback - #30 by BlackWaterPirate
ledgend! idk how but theres gotta be a better way of describing how these mods work than “based on durability” 
it leaves to many questions (sticking with my example of how on an indestructible item you cant even see what the durability is, even though it dosnt matter). i also feel like anyone who is curious at all would instantly put what looks like 2 and 2 together and think a “durability increased by x%” mod would have a synergy with a X% based on durability mod yet they dont interact at all.