Molten Strike DPS Calculator

Follow this link for the new Javascript-based Molten Strike DPS calculator. This is targeted at people who are comfortable using Path of Building and/or calculating DPS for normal builds.

Usage Notes
  • Follow the link to run the calculator. It requires Javascript, and it has been testing with Firefox and Chrome on Windows.
  • In Path of Building, setup your build, including the configuration tab. If you're making a build guide, only select buffs that are reliable in an isolated boss fight. Also be sure to pick shaper as the boss type.
  • Update all the white textboxes and select or unselect all the checkboxes to match your build's setup.
  • If you click on any text to the left of a textbox, the help section will be updated to include an extra explanation.



old Google sheets version

Here's a new Molten Strike DPS calculator. This is targeted at people who are comfortable using Path of Building and/or calculating DPS for normal builds. This spreadsheet emphasizes correctly calculating how AoE and point blank affect molten strike's DPS.

Highlights on how it differs from existing calculators:

  • It's simple to use. Put in the damage numbers you see in Path of Building and 4 other numbers and it does the rest.
  • By doing all the work in a single column, it makes it easy to compare multiple configurations side-by-side. Just make a copy of the Google Sheet and add and remove columns to compare build configurations.
  • It calculates the precise interactions between point blank and molten strike for namelocked bosses. Frequently, people assume they get the full 50% more bonus for all projectiles, but doing so greatly overestimates DPS.
  • It includes the 2.6 changes to AoE mechanics.
  • It calculates the average number of balls that hit (typically 46-47% chance to hit per ball with RT and conc effect). All existing calculators I've found either have bugs or they assume all balls hit, and as such they greatly overestimate DPS.
  • Given Mark_GGG's 2014 statement, it assumes the inner radius does not change with AoE. Most people assume both the inner and outer radius change and thus underestimate DPS.
  • It has been updated with the ball distribution explanation given by Mark_GGG.
  • As with some calculators, notes have been added explaining any non-obvious user inputs, calculations, and assumptions.
  • It includes a link to a more complete but much more complicated ipython notebook that analyzes more complex situations and includes a lot of explanation, calculations, tables, renderings, graphs, and analysis.

Comments, corrections, and suggestions are always welcome.

Usage Notes (READ ME PLEASE!)
There are a few subtleties that are important to understand if you want to get reasonably accurate DPS estimates.
  • If you're new to Google Sheets: To use the spreadsheet, first make a copy of the spreadsheet, then either copy a column or edit an existing one. Replace all the numbers in green boxes with stuff you see in PoB. Don't touch the yellow boxes. The final DPS number is the dark yellow box at the bottom of each column.
  • How the calculations are documented: If you want to know more about what a row is asking for or computing, look for the little black triangle in the leftmost column (where the row labels are). There are tooltips for all major inputs and calculations giving extra details.
  • Working around PoB attack speed bugs: PoB has a bug where it uses projectile attack speed instead of melee attack speed to calculate the ball attack rate, so you need to correct for that.
    • If you're using Multistrike, multiply the ball DPS you see in PoB by 1.94 when putting it in the calculator (assuming you have a level 20 gem).
    • If you're using Physical Projectile Attack Damage, multiply the ball DPS you see in PoB by 1.1111 (to reverse the 10% less speed multiplier it incorrectly uses).
    • If you have the Born to Fight passive or other melee-only attack speed buffs, you'll need to do more complicated math to correctly apply its bonuses. If you're already stacking a lot of general attack speed, then the boost from these nodes is small enough that you might want to just ignore this complication.




  • Version History
    • 2018-10-28: created a new Javascript version that's easier to use
    • 2018-07-28: added usage notes (thanks xhul for the feedback!)
    • 2017-07-15: fixed projectile spread distribution based based on info tracked down by reddit. Also added a graph for finding the optimal AoE modifier.
    • 2017-05-29: original version
  • 2.6 BLS Berserker budget shaper farmer build guide: https://www.pathofexile.com/forum/view-thread/1882710
    Last edited by MoldyDwarf on Oct 28, 2018, 2:54:02 PM
    Last bumped on Nov 16, 2018, 9:56:26 PM
    "
    MoldyDwarf wrote:
    Comments, corrections, and suggestions are always welcome.


    Where do I get enemy size/hitbox from?

    Did you verify some exemplary results in practice?

    --

    Have done some empirical testing earlier this league. I think I got a ~40% hit chance (probably with conc and at least 50% inc AoE). This was with namelocking a stone lion statue which may have larger hitbox than other mobs.
    I also attempted to get more DPS/hits by not namelocking. This ended as a "complete failure". Furthermore in practical gameplay I also notice that the namelocked target takes more damage than surrounding targets. The only way to increase the DPS which I found was to use the skill with obstacles around. Most notably in a corner. My testing was not extensive though. It is possible I missed sth important or that some of my results were false.

    No wonder it's lost, it's in the middle of the jungle!
    "
    Zrevnur wrote:
    "
    MoldyDwarf wrote:
    Comments, corrections, and suggestions are always welcome.


    Where do I get enemy size/hitbox from?

    Did you verify some exemplary results in practice?

    --

    Have done some empirical testing earlier this league. I think I got a ~40% hit chance (probably with conc and at least 50% inc AoE). This was with namelocking a stone lion statue which may have larger hitbox than other mobs.
    I also attempted to get more DPS/hits by not namelocking. This ended as a "complete failure". Furthermore in practical gameplay I also notice that the namelocked target takes more damage than surrounding targets. The only way to increase the DPS which I found was to use the skill with obstacles around. Most notably in a corner. My testing was not extensive though. It is possible I missed sth important or that some of my results were false.



    Thanks for your feedback and data.

    Over this league, I've recorded and analyzed a few hours of total video, but it's pretty hard to get clear answers even doing that. To be more systematic, I'd want to do some image processing tricks like image rectification, Hough transforms, and perhaps background subtraction, but I haven't felt motivated enough to go to that much trouble.

    For the enemy hitboxes, I'm trusting what people have said on the long mechanics thread (1=worm, 2=most stuff, 3=bosses). Those numbers are small enough that I'd need a much more systematic data gathering approach. I recorded a bunch of videos of A4M voll, but even he moves around so much that it's hard to get precise information. That said, a radius of 3 with a ball radius of 9 (and thus 12 radius to hit with no aoe) was pretty close to what I estimated from watching the videos, looking for life drains on Voll and checking the distance to balls using the radius image from the wiki.

    With a boss hitbox of 3, 50% increased AoE, and conc eff, as best I can tell the chance to hit is about 32%. I'd call that well within the margin of error of the 40% estimate you have. How did you test whether something hit it? Based on what I've seen, the size of the 3d model isn't a reliable way of telling how big a mob's hitbox is, though I'd be very interested in knowing if that's wrong.

    The corner trick is interesting. I agree that should work since it's very well known that it works for other skills like KB. Should work well on Phoenix.

    I've done about 90 Shaper runs this league, most with BLS+MS. The more reliably fast runs were when I stood about 1 tile away from him. I suspect the true optimum is to stand close enough to just barely connect with the melee hit. With +2 range from duelist, namelocking should put you 9+2=11 units away if he's centered. Ignoring the melee hit, the optimal distance should be 20.5 with conc eff, dying sun, and 2x wildfire. At 14 away (9+2 + 3 boss radius), the melee hit would still connect but there'd be more projectile DPS than at 11. Also, at least for berserker, it's good to stay close enough that Shaper can proc melee savage hits. If you have fewer balls (no dying sun and/or no wildfires) or if you're scaling melee damage in ways that don't scale projectile damage too, then that could certainly bias the results in favor of namelocking. In practice, Shaper and Uber Atziri are the only things with large enough life pools for this to matter, and not dying is more important than precise positioning with Uber.
    2.6 BLS Berserker budget shaper farmer build guide: https://www.pathofexile.com/forum/view-thread/1882710
    "
    MoldyDwarf wrote:
    For the enemy hitboxes, I'm trusting what people have said on the long mechanics thread (1=worm, 2=most stuff, 3=bosses).

    Ok, thanks.

    "
    MoldyDwarf wrote:
    How did you test whether something hit it?

    Very simple. I counted the number of attacks it takes to kill the target. Then "math it backwards" to get the number of proj hits. Have to add here that number of proj hits was just one of the things I tested. I didnt focus on it and didnt do enough runs with the same setup for reliable precise results.

    I also vaguely remember some much older tests which indicated 2 ball hits per attack (with 6 balls) so that would be almost identical with your number. Dont remember the test details though.

    No wonder it's lost, it's in the middle of the jungle!
    "
    Zrevnur wrote:
    ...
    "
    MoldyDwarf wrote:
    How did you test whether something hit it?

    Very simple. I counted the number of attacks it takes to kill the target. Then "math it backwards" to get the number of proj hits. Have to add here that number of proj hits was just one of the things I tested. I didnt focus on it and didnt do enough runs with the same setup for reliable precise results.

    I also vaguely remember some much older tests which indicated 2 ball hits per attack (with 6 balls) so that would be almost identical with your number. Dont remember the test details though.


    Okay, thanks for the extra info. If you do ever do any more precise testing, I'd love to see the results.
    2.6 BLS Berserker budget shaper farmer build guide: https://www.pathofexile.com/forum/view-thread/1882710
    I would be interested in concentrated effect with no increased aoe modifiers.

    I used to use: molten - fast attack - multi strike - gmp - lgoh - concentrated effect
    "
    SuicideAll wrote:
    I would be interested in concentrated effect with no increased aoe modifiers.

    I used to use: molten - fast attack - multi strike - gmp - lgoh - concentrated effect


    Should be easy enough to test in the calculator. If you don't have wildfire jewels or dying sun, set the increased AoE to 0. Leave the less AoE at -30%. Set the number of balls to 7 (3 built in + 4 from gmp).

    If you're able to use wildfire jewels, you'll almost certainly want to use 2 of them instead of GMP. They do add a little AoE (slightly bad for single-target DPS), but they lack the 26% less modifier on GMP and you can replace GMP with a gem with an increased or more modifier.
    2.6 BLS Berserker budget shaper farmer build guide: https://www.pathofexile.com/forum/view-thread/1882710
    The calculators have been updated based on recent rediscoveries made on reddit.
    2.6 BLS Berserker budget shaper farmer build guide: https://www.pathofexile.com/forum/view-thread/1882710
    Conc effect linked with MS does nothing both in POB and in-game. Can't figure out why that is.

    I'm Left of Right and far Right of Left.
    "
    Conc effect linked with MS does nothing both in POB and in-game. Can't figure out why that is.


    That is a good question. The in-game tooltip and the default in PoB is for the melee hit. You'll want to switch to "magma balls" in PoB to see the effect. Ignore the in-game tooltip. It's basically worthless since we get so much more damage from the projectiles than from the hit.
    2.6 BLS Berserker budget shaper farmer build guide: https://www.pathofexile.com/forum/view-thread/1882710
    Last edited by MoldyDwarf on Sep 17, 2017, 11:03:51 AM

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