Spell Interruption Rate questions

[pchan]

Wait, what job/sub and what skill level? You were testing interruption of the spell Stoneskin? (gonna take a wild guess and say RDM, since your total was so high)

yay

edit : nvm only enhancing count I guess so the base 256.

[Auspice]

warlock's tabard is 10%, +1 is 12%
also, magnetic earring is 8%, merits can be another 8%

Ah, that explains why I was confused writing my post when I SWORE I had figured out a gear set up that put me over 100% spell interrupt down.

[RyaWHM]

Some more testing!

Robber Crab Lv.63 (killed him after) Easy Prey

Rules:
•I try to "center" his attack in my casting, so it is clearly mid-cast
•if the crab swings too close to start/end, I sidestep/retry (omit/ignore)
•(I was careful about timing and pretty particular, but I don't remember another "rule" - if someone makes a good point, and I realize I actually "yes I did that!" then I will edit)
•if there was any doubt in my mind, about him hitting me while casting "correctly", I did omit that round (only happened like twice from lag)

----

WHM75/NIN37 with Lv.26 skill, casting Utsusemi: Ichi with -8% (no gear, just merits) and WITHOUT aquaveil:

attempted to cast 200 times ... succeeded 2 times >.>

----

WHM75/NIN37 with Lv.26 skill, casting Utsusemi: Ichi with -8% (no gear, just merits) and WITH aquaveil:

attempted to cast 200 times ... succeeded 3 times >.>

----

So...

It's interesting to me that I had such a low success rate in both cases. I mean, if I'd had a high success rate, you could argue this or that ... but getting interrupted 395/400 times, I mean ... you get the message right in the chat log, it's pretty hard to dispute.

Note: It's also kinda embarrassing watching fifty people run past you, looking like you dunno how to cast Ichi on a crab!

Anyway, this does at least show me that Aquaveil does not provide a HUGE boost to horribly underleved skills! ... but other than that, this test doesn't help a whole lot by itself IMO because ... it could be that I have like a "negative chance" that's being capped at 5% or 1%...and aqua is taking me from -30 to -5 (which is still "capped" at 5% or 1%) ...

...blah, that's all just speculation, but my point is, I don't think this can be more than "a piece of the puzzle" -- still needs more testing!

[Kaylia]

You might be right about the negative chance...however, your previous test were done at 100% in a similar context, and you had no issue recasting. If there was a negative number somewhere, it's not applied on the same level as "spell interupt-" from gears. What bother me however is the "-8% from merit" that ended up being around 4%. With a low cap around 5%...it means both aquaveil and merit were useless in your test.



It's just a random idea of how it could work. It would need many differents test to figure out the real formula, but something like this should explain the situation we encountered so far.


Sucess % = [ Base % ] + [ Gears%]

Base % = [ Level correction % + Aquaveil + Merit - Crit(?) ] (return 0 if it's negative)

Level Correction % = [ function(Attacker skill level,Caster skill level)]
This function need to return negative value when the attacker is a lot higher, around 50% for a decent challenge against a A skill, and 95% when you're a lot higher


The level correction might be easy to check in ballista, unless they fucked up spell interupt there. The other alternative to test it on Collibri with a BRD charming you with a weak weapon.

[Kaeko]

Random thought:

Perhaps the % interrupt rate is not the % chance you will be interrupted, but some threshold at which your chances of interrupted increase greatly.

For instance, we all know that if you get hit very late in your cast, it tends to go off anyways. What if the -% interruption rate just lowers the % cast you need to be at to not be interrupted? Basically, if you are hit after a certain casting %, your chances of being interrupted go to 0.

So at -100% interruption rate, you reach this threshold the instant you cast, i.e. cannot be interrupted.

[Kaylia]

Random thought:

Perhaps the % interrupt rate is not the % chance you will be interrupted, but some threshold at which your chances of interrupted increase greatly.

For instance, we all know that if you get hit very late in your cast, it tends to go off anyways. What if the -% interruption rate just lowers the % cast you need to be at to not be interrupted? Basically, if you are hit after a certain casting %, your chances of being interrupted go to 0.

So at -100% interruption rate, you reach this threshold the instant you cast, i.e. cannot be interrupted.

It would be relatively easy to test if you do 100% ->50% -> 0% on a long spell (rr?). Just need someone to sleep your monsters 3-4sec after the casting start.

However, I never noticed a change with aquaveil and utsu: ichi on WHM, and usually, monsters hit you near the end of the casting. I'm not doing whm/nin pretty often thought.

[zagex]

Ah, that explains why I was confused writing my post when I SWORE I had figured out a gear set up that put me over 100% spell interrupt down.

You can reach over 100% spell interrupt rate on Rdm. The absolute max is
2x wand (50%) , nashira turban (10%) , willpower torque (5%) , magnetic earring (8%) , af+1 body (12%) , solitaire cape (8%) , druid's rope (10%) , karasutengu kogake (15%) , merits (8%) = 126%

or with wand/shield(25%/10%), max is 111%

[Chen]

i thought sub skills only (like whm casting ustsu) would always be interupted?

guess best way to know is some rdm with 100% in gear trying utsu on an EP+

[Raineer]

i thought sub skills only (like whm casting ustsu) would always be interupted?

guess best way to know is some rdm with 100% in gear trying utsu on an EP+

Not even sub skills "always" get interrupted, but yes very often so. The best way imo is to do a few trials on a long spell at the same level of the mob.

100% "Spell interruption" could also mean "as long as the skill to mob check is the same level, you will 100% not be interrupted". You might have -100% interruption casting a spell at skill 276 (A+ for 75 ya know), but if you are being hit by a level 80ish mob there could be a level adjustment performed which raises the floor chance of the casting being stopped.

[Guppy]

Random thought:

Perhaps the % interrupt rate is not the % chance you will be interrupted, but some threshold at which your chances of interrupted increase greatly.

This sounds like a really good possibility. SE loves thresholds and non-linear responses.

[pchan]

Well I narrowed down the value of aquaveil, playing again with chigoes, but with ninjustu this time (rdm/nin, 114 skill from SJ). 3 chigoes hitting me 3-6 times for each utsusemi:ichi, and here are the results :

-58% + aquaveil : 4 no interrupt / 6 interrupt
-74% + aquaveil : 17 / 3
-75% + aquaveil : 18 / 2
-78% + aquaveil : 46 / 3
-79% + aquaveil : 41 / 0
- 81%+ aquaveil : 10 / 0
-79% no aquaveil: 5 / 4

It seems that aquaveil is indeed -20%. I suspect that there is a chance to get interrupted at -79%+ aquaveil. I would get at least 3 hits on each spell and most of the time 6. With -99% and 3 hits , there is 97% chance of not getting interrupted so the chance of interrupt exists but you need an large sample size to see one. So I assume aquaveil = -20%.

[Raineer]

Awesome testing pchan

[arshesney]

How much Enhancing skill you used in the testing?

[pchan]

How much Enhancing skill you used in the testing?

256 but I used utsusemi so it doesn't matter .. I think, unless it affects aquaveil strength.

[Wenslydale]

Regarding the movement while casting, I remember reading somewhere that the game only checked your position at the end of spell casting. Meaning you could move around all you wanted until the game checked your current position with your original position.

For the life of me, I can't remember where I read that, but every time I get knocked off my position while casting, I've run back to it and gotten the spell off. Maybe it's all just placebo but I swear by it.

[Wenslydale]

Figured I'd grab some pics of me doing it. I left all the plugins and such running intentionally. And yes. . . I play with all that shit on my screen. I find it easier.

Spoiler: show

http://www.bluegartr.com/forum/attac...1&d=1240820302

Spoiler: show

http://www.bluegartr.com/forum/attac...1&d=1240820465

Spoiler: show

http://www.bluegartr.com/forum/attac...1&d=1240820465

Spoiler: show

http://www.bluegartr.com/forum/attac...1&d=1240820465

Spoiler: show

http://www.bluegartr.com/forum/attac...1&d=1240820465

[Retrieving/C.D/Searain]

Was looking on Warrior to see if I could get a nice setup for emergency utsu.


Merit: 8%
Magnetic Earring: 8%
Mountain Gaiter: 5%
Resolute belt: 8%
Woodvile axe/muse tariqua: 15%

44%...lame.

There's also a low level torque which gives some -spell interruption %, unless I'm mistaken (can't really remember the name off the top of my head, it's been a while, the icon looked like a golden collar if I recall correctly, think of Fort. Torque)?

I had a gearset comprised of that sort of junk and even - spellcasting int. rate % merits maxed back then (it was like 2005 or so and Woods/Jug combo was still the shit) for Warninja tanking purpose. Used to work surprisingly well and I definately ended up feeling the difference when I wiped them out.

[Julian]

Regarding the movement while casting, I remember reading somewhere that the game only checked your position at the end of spell casting. Meaning you could move around all you wanted until the game checked your current position with your original position.

For the life of me, I can't remember where I read that, but every time I get knocked off my position while casting, I've run back to it and gotten the spell off. Maybe it's all just placebo but I swear by it.

Um, if you just mean start casting in one position, then move around, but return to the original position before the spell goes off, then that's old news >_>

Sometimes if you get knocked back while casting (especially on brd) if you can make it back to your exact original position, the casting might still go off.

Now unless you're trying to say something like that if you get hit while casting but while you're not in your original position, it wont interrupt you, then it's old news >.>

The "moving without interruption" that people were talking about, would be if it was possible to move around with -100% interruption and not get your spells interrupted, which you can't.

[Aable]

Slightly on and off topic, but does anyone happen tp have the Choral Roll numbers, beacuse it will be super useful for gear selection to let plds give this a shot on higher level mobs. Should easily be able to clear 100% with sch/rdm giving them aquaveil and Choral Roll with bard in the party.

[Cow_k]

Obviously the next step is to take these 100% interrupt sets to jorg or vrtra and see if you can get a spell or two off before he murders you.