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Someone wanna double check the mathFollow

#1 May 27 2008 at 4:56 AM Rating: Good
Drama Nerdvana
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Cause if so we might just have a solid conversion of MP5 to Spellcrit for both HL and FoL
Quote:


Something else you can garner from this is itemization theorycraft. In the mp5 example, we see that 5% spell crit is equal to about 18 mp5 for Flash of Light. That is roughly 110 spell crit rating. In Blizzard's terms, 3 mp5 is roughly equal in value to 8 spell crit (you can see this in the gem system)...if you extrapolate that, you get 6 "units" of mp5 in exchange for 13.75 of spell crit rating with Flash of Light. If you instead use Holy Light, it's 21 units of mp5 for that same 13.75 of spell crit. It's an interesting system of tradeoffs.


http://bloodpaladin.blogspot.com/2007/11/holy-paladins-healing-vs-spell-crit-vs.html
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Bode - 100 Holy Paladin - Lightbringer
#2 May 27 2008 at 6:03 AM Rating: Decent
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Even if it's 100% correct, and I have no idea if it is or not, your overhealing will suffer. By this mechanic you regenerate your mana only on Holy Light crits, and HL crits on a decently geared Paladin are extremely juicy heals.

There arent many situations where the full critheal will benefit your target, so your effective healing efficiency will be nerfed if you use HL to 'boost' your mp5.

FoL all the way baby.
#3 May 27 2008 at 6:19 AM Rating: Good
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from the same page

Quote:
[/edit: Spell Crit equating to Mp5 is not ideal as you will not regen mana through spell crit if you are not casting (because you're out of mana, silenced, etc). It is perhaps better to look at Spell Crit as an increase to your overall mana pool, detailed here.]


#4 May 27 2008 at 6:31 AM Rating: Good
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I just woke up from a nap and the coffee is brewing so I might just need a second to see exactly where you are coming from but the point of the conversions is not so you can go all Spell crit, mp5 or whatever it is rather knowing how Mp5 translates into equivalent spell crit so when you are making gear choices you can say "That 18 mp5 trinket is better for this fight than the 32 spell crit trink". Exact knowledge of conversions when moving up in gear also helps since you can guesstimate if that drop in mp5 was worth the spell crit.

Oh and FoL spam is good until Kara then you need to start figuring out downranking, and when to use HL, or god forbid have Holyshock on key assigned for clutch heals or else you are getting carried by the 6 other healers in the raid.
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Bode - 100 Holy Paladin - Lightbringer
#5 May 27 2008 at 6:32 AM Rating: Decent
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The thing about Paladin healing is you never stop healing, unless you are bad, poorly geared, or don't use mana pots proactively.
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Bode - 100 Holy Paladin - Lightbringer
#6 May 27 2008 at 8:53 AM Rating: Good
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I like that it gives a little more precise set of values. I also like that it breaks down the conversion for both spells, something I'd been wondering about.

Generally I've been following the "unspoken rule" of assuming that 1% base crit is roughly equal to 8mp5 when you account for both spells. I also like the idea of viewing it more as an increase in mana pool, almost like an "Effective Mana" rather than mp5, as it's totally useless when you run out of mana -- and you're down to regular mp5.
#7 May 27 2008 at 10:53 AM Rating: Good
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I've written a VB (yes its the only programming language I know) program to generate a random sequence of heals and work out how long it takes to go oom, unfortunately changing the crit chance doesn't seem to affect the time to oom very much, which is probably a programming error, if I get it working it should give a reasonably accurate relation between mp5 and crit.
#8 May 28 2008 at 7:12 AM Rating: Good
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Just a thought, isnt't this incredibly easy to calculate in certain situations?

For example, assume continuous FoL spamming at highest rank, no stopping, no latency:

- base cost of FoL is 180 mana
- mana return is 60,0% of base cost on crit through talent
- this means that 1,0% extra crit (not rating!) returns 60,0%*1,0%=0,6% of the base cost of FoL per 1,5 seconds (cast time)
- which in turn means that the 1,0% extra crit (not rating!) returns 0,6%*5/1,5=2,0% of the base cost of FoL per 5 seconds (comparing to mp5)
- which means that 1,0% extra crit (not rating!) returns 2,0%*180=3,6 mana per 5 seconds
- which means that the tradeoff as far as mana return goes is 1,0% extra crit (not rating!) equals 3,6 mana per 5 seconds.

Apart from the mana return, the extra crit is worth even more through more healing of course, so 1,0% extra crit on itemization should be higher in value than 3,6 mana per 5 seconds.

Now I don't know what Bodhi's link is about, because it was too large to read for me at the moment, but the outcome he presents differs a lot from the above. Perhaps one of you can shoot a hole in my reasoning?

Oh well.. theorycrafting.. always cool.




#9 May 28 2008 at 10:03 AM Rating: Decent
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Well the flaw in your argument is that you assume continuous fol spamming, which won't get you much further than kara, to get a true comparison you'd need to know the proportion of time spent not casting and the ratio of holy lights to flash of lights.

My program got horrendously complex (I didn't use any subroutines at first, and it got out of hand) so I started afresh with some more elegant code, though i'm not sure a simple answer is possible, it depends on your current stats, the amount of time you want to heal for and the rate of healing you need to maintain.
#10 May 28 2008 at 11:24 AM Rating: Decent
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As a Paladin healer who has gone from Kara to Sunwell I can say as a Pally the only time I am not casting a heal is when I am casting a cleanse. There is no five second rule for pallies. That being said 1% to 6 mp5 has to be guess~timate at best cause yes small pauses over a 10 min fight make difference. Such as the freeze on Illidan mid fight, silences on Azgalor etc.

Some practical info though.

My toon. 167 crit rating, +546 Intellect with 80.05 Int = 1% crit, 6.82% crit, with 4.49% base spell crit. was at 143 mp5 base, 49 mp5 BoW, 14 Mana Oil, 8 mp5 sporefish. So 214mp5 avg raid buff.

Looking at WWS from Gurtogg Bloodboil last night I am getting upwards of 13.8k mana back from Illumination, 5.5k from pots. The fight was 8:14 long, over 494 seconds (8:14) that is about 14.1k mana back at 214, roughly. Teron was a shorter fight, 3:36. 8.5K mana from Illumination, 9.2k from mp5. What I really need to do is find out my Holy Crit when raid buffed currently so we can guestimate crit vs mp5 on actual fights. I raid tonight and will see where I am at. Still crit chance is nice to know but only if it works with spell cri rating which is a little more important to note.


Comes back to just trying to figure out the conversion of Spellcrit rating to Mp5 choices so you can make smart choices in gear, the simple fact is that you still want to balance both or else you are a bad fricking pally. Any pally in S3 with 2k+ healing, 25% spell crit and 50 mp5 proves that.
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Bode - 100 Holy Paladin - Lightbringer
#11 May 29 2008 at 1:25 AM Rating: Good
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Well, it is easy to adjust my math to particular situations if you like. Even separately for every boss fight out there it is possible (the ratio differs according to the type of a fight!). Do the following for preferably a few fights against the same boss:

- track the total time the fight lasts, say x seconds
- track the total numbers of FoL cast, say a FoLs cast
- track the total numbers of HL cast, say b HLs cast, base mana cost HL =
- average all three numbers if multiple fights are available, transforming x in an average X, a in an average A and b in an average B

General information:
- casting time FoL = 1,5 seconds, base mana cost 180
- casting time HL = 2,5 seconds, base mana cost 840

- over the cause of the entire battle the total mana M returned through the talent in the holy tree for 1% spell crit (not rating!) then equals:

M = a*1,0%*60,0%*180 + b*1,0%*60,0%*840

- the mana returned per 5 seconds M5 through the holy talent then becomes

M5 = 5*M/x

This is mana-return wise for that particular battle directly comparable to mp5.

As an example, 1 fight recorded:
X=600 seconds (10 minutes)
a=200, meaning 300 seconds of FoL casting
b=100, meaning 250 seconds of HL casting
idle time nonhealing is 600-300-250=50 seconds

Total mana returned for 1,0% spell crit (not rating!)

M = 200*1,0%*60,0%*180 + 100*1,0%*60,0%*840 = 720

Mana returned per 5 seconds:

M5 = 5*720/600 = 6.

For this example, ONLY OBSERVING MANA RETURNS, 1,0% spell crit (not rating!) equals 6 mp5. BUT: 1,0% spell crit also means 1,0% more healing done over the full course of the battle... making the 1,0% fully superior to 6 mp5. To what ratio? Well I would say 1,0% more healing done can be converted to a +healing number (quite easy math) and thus the 1,0% spell crit (not rating!) equals 6 mp5 and an amount of +healing.

Pfffffffff I call it a day.


Edit: some minor text adjustments.

Edited, May 29th 2008 5:27am by Immunios
#12 May 29 2008 at 4:58 AM Rating: Excellent
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Immunios is right, at least to a point. The maths is quite simple at face value. The mana gained from illumination is derived by the formula:

Mana returned = mana spent * crit rating * 60%.

The mana spent depends on a number of factors: ratio of holy light to flash of light spells; spell haste rating; whether Light's Grace is maintained; etc. Basically, this will be different for different people in different situations.

There may also be slight fluctuations down to the random number generator that's used to determine whether you get crit spellcasts. However, over a long period, this should flatten out.

However, assuming that the random number generator is playing ball, as Immunios says, casting FoL returns 3.6 mp5 (at a cost of 600 mp5) for each 1% of spell crit.

Holy Light is trickier because the initial cast time is 2.5 seconds and thereafter (while Light's Grace is maintained) 2.0 seconds. This equates to 336 mana spent per second in the first 2.5 seconds and 420 mana spent per second afterwards. The mana return is 2.016 per second for the first 2.5 seconds and 2.52 per second thereafter.

If you want to ignore the first cast for the sake of simplicity, HL returns 12.6 mp5 per 1% spell crit.
#13 May 29 2008 at 5:18 AM Rating: Good
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You are correct, Leodis. To be fair: I am not a holy paladin and to be even fairer: I have not played my prot paladin for quite some time now so to be fairest: I totally forgot about Light's Grace. /facepalm

However, all the above calculations, with a correction factor for the Light's Grace talent, should be ok to have at least a good estimation of when a spell crit item should be valued over an mp5 item or not.

When the comparing values are far off from one another, it is an easy choice. When they are close to each other, it will be a plus in some fights and a minus in others, depending mostly on the random number generator on both the damage the tank takes and the healing done by the paladin. In the latter case, there is no real "best" item of the two, so then choose what seems appropriate for you/ for the fight.
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