"base attack dmg" = all flat dmg ...even if of different types? (i.e. phys, elem, chaos)

Fairly certain mark's explanation is the true answer, and others were mistaken.

Other sources of added damage are explained here:

"

Added Damage from sources other than the weapon is not base damage, and is not scaled by that stat, but instead by "Effectiveness of Added Damage". In most cases attack skills will have the same or very similar values for base damage scaling and effectiveness of added damage.

So a gem of added damage will be scaled with the effectiveness of added damage on the skill gem. Same goes for added damage from rings, buffs, etc.

Well, I would take Mark's word on anything game related, since, you know, he actually builds and designs the thing. Nothing fairly certain about it, his word is as good as it gets if not better.

"

helmutb wrote:

I do however now also feel more confused about "base dmg" because of your reply, MARK, as it seems to contradict other answers I was able to find in this forum. you wrote:

"

The base damage for an attack is the damage of your weapon

but when I searched this forum a little while back for answers as to what constitutes "base dmg", the (2 or 3?) answers I was able to find all stated that it was "all flat dmg", from weapon, gear, passives, skills, etc.

for example: (posted by "raics" on Aug 3, 2017, 10:07:42 AM)

"

Yeah, that's exactly it, the sum of all flat damage on your weapon, jewelry, auras/heralds and other items or buffs. So if a skill says it does 200% of your base damage that means it's doubled just for that skill

were they mistaken?
or did I miss, or misread, some fine point or differentiation?

I'm afraid if I try to explain why people confuse just base damage, base damage + added damage and effectiveness of added damage I'll confuse you even more.

The answer you quoted is incorrect, but in practice effectiveness of added damage of most attacks equals to %base attack damage. That means in the quoted example Effectiveness of Added Damage will also be 200%. So in general case you can treat the answer as correct with skipped steps to give practically usefull info. This is the first reason of confusion - % of Base Damage and Effectiveness of Added Damage are equal so a regular players doesn't really need to learn the difference between base and added damage.

Another confusion appears in context of ailment damage calculation. People often miscall the damage that ailment calculation comes from. They say ailment damage calculates from base damage implying base + added damage. It makes reading this people think that base damage also includes all sources of + flats.

got it :-)
thanks once again for your - detailed - replies!

now, let us all go forth and kill, kill, kill...

bonzai!!!

"

MonaHuna wrote:

Another confusion appears in context of ailment damage calculation. People often miscall the damage that ailment calculation comes from. They say ailment damage calculates from base damage implying base + added damage. It makes reading this people think that base damage also includes all sources of + flats.

Wait, you're really saying Poison, Bleeding, and Ignite don't include +flat in their base damage calculation? Is that true? Why would Coated Shrapnel be anti-synergistic with itself, then?

I think, more likely, Poison, Bleeding, and Ignite base damage are derived from base damage + added damage.

"

adghar wrote:

"

MonaHuna wrote:

Another confusion appears in context of ailment damage calculation. People often miscall the damage that ailment calculation comes from. They say ailment damage calculates from base damage implying base + added damage. It makes reading this people think that base damage also includes all sources of + flats.

Wait, you're really saying Poison, Bleeding, and Ignite don't include +flat in their base damage calculation? Is that true? Why would Coated Shrapnel be anti-synergistic with itself, then?

I think, more likely, Poison, Bleeding, and Ignite base damage are derived from base damage + added damage.

They include added damage (all external plus flats), because as you said, damaging ailments calculate from base + added damage, not just base damage. The thing I mean is when people explain ailment damage they often use just "base damage" like here

"

The base damage of an ignite is determined by the base fire damage of the hit that applies it. That means that anything that adds fire damage to the hit will also increase ignite damage, but percentage modifiers to the hit's damage do not.

This is where confusion comes from, reading this players get the wrong idea that base damage includes all + flats.