Stealth and Perception: Difference between revisions

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== Overview ==
== Overview ==
A player or [[critter]]'s '''Perception''' is simply the maximum distance, measured in feet, at which it can detect hostile targets. For players, it also affects the maximum distance at which targeted powers can be used against that enemy. Critters aren't limited this way. Once a critter becomes aggressive toward something, its AI remains aware of that target's exact location and can chase and attack it regardless of perception until it reverts to peaceful.


A player or [[critter]]'s ''Perception'' is simply the maximum distance, measured in feet, at which it can detect hostile targets. For players, it also affects the maximum distance at which targeted powers can be used against that enemy. Critters aren't limited this way. Once a critter becomes aggressive toward something, its AI remains aware of that target's exact location and can chase and attack it regardless of Perception until it reverts to peaceful.
The '''Stealth''' of a target reduces the radius at which an enemy can see the target, making it possible for up-close sneak attacks. The [[Stalker]] [[archetype]] often relies on attacking from [[Stalker#Hiding|Hide]], which is an alternate form of stealth unique to the Stalker archetype.


The ''Stealth'' of a target effectively subtracts from the Perception of anything trying to detect it.
:'''Example:''' Normally, if {{Character}} stood 45 feet from a [[Trolls|Troll]], he would need a perception radius of 45 feet to notice she was there. If {{Character}} had a stealth radius of 35 feet, he would need a perception radius of 80 feet to detect her. Or in other words, {{Character}} could stand up to 10 feet away from the Troll and not be seen; however, the Troll would see her if she moved any closer.


:'''Example:''' Normally, if {{Character}} stood 20' from a [[Trolls|Troll]], he would need a Perception of 20 to notice she was there. If {{Character}} had a Stealth of 35, he would need a Perception of 55 to detect her.
If {{Character}} has as much stealth as, or more stealth than, the perception of the enemy, {{Character}} will be invisible no matter how close she gets.


If {{Character}} has as much Stealth as, or more Stealth than, the Perception of the enemy, {{Character}} will be invisible no matter how close she gets.
Everything has some amount of perception to begin with. The exact amount varies greatly:
 
Everything has some amount of Perception to begin with. The exact amount varies greatly:
* Minion, pet, [[Mastermind]] henchmen (all tiers): 45
* Minion, pet, [[Mastermind]] henchmen (all tiers): 45
* Lieutenant: 50
* Lieutenant: 50
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* Player: 500
* Player: 500


Nothing has any Stealth inherently. It must be granted by powers.
Nothing has any stealth radius inherently. It must be granted by powers.
 
Notice that players have much higher Perception than critters do. Because of this, all Stealth powers have two values, one that applies to critters and one that applies to other players.
 
 
== Stacking Stealth ==
 
All [[Stealth and Perception|Stealth Powers]] stack with one exception: Toggle powers whose primary purpose is Stealth.
 
So, for example, if you have [[Concealment#Stealth|Stealth from the Concealment Pool]] toggled on, and then toggle on [[Dark_Miasma#Shadow_Fall|Shadow Fall]], then [[Concealment#Stealth|Stealth]] will automatically toggle off.
 
This does not include powers which have a bonus Stealth component, such as [[Speed#Super_Speed|Super Speed]] or a travel power with a [[Stealth IOs|Stealth IO]] in them. So, for example, if you have [[Concealment#Stealth|Stealth from the Concealment Pool]] toggled on (35' of Stealth in PvE) and then turn on [[Speed#Super_Speed|Super Speed]] (35') and turn on [[Inherent_Powers#Sprint|Sprint]] with a [[Stealth IOs|Stealth IO]] slotted into it (30'), then all three will be toggled on and you'll have 100' of total Stealth.


Notice that players have much higher perception than critters do. Because of this, all stealth powers have two values, one that applies to critters and one that applies to other players.


== Ignoring Stealth ==
== Ignoring Stealth ==
[[Sniper]]s, like all enemies, will attack a character as soon as they can see the character (also called their "[[aggro]] radius") - if the character has no stealth, this means from 149 feet away instead of the standard 45 feet. This is due to their extra perception radius. They do not ignore stealth, they simply can see farther, canceling out some of the stealth radius a character may have.


[[Sniper]]s, like all enemies, will attack a character as soon as they can see the character (also called their "[[aggro]] radius") - if the character has no stealth, this means from 149 feet away instead of the standard 45 feet. This is due to their extra perception radius. They do not ignore stealth, they simply can see farther, canceling out some of the stealth radius a character may have.
However, there ''are'' enemies which ignore stealth. The enemy will not react to a player using no stealth from a further distance (as enemies with higher base perception, or perception buffs will), but as soon as a stealthed player is in range, the stealth-ignoring enemy will attack regardless. Enemies which ignore stealth completely include:


Many players believe [[Rikti#Drone|Rikti Drones]] and [[Soldiers of Rularuu#Watcher|Rularuu Sentries]] have extra perception, like Snipers do. However, unlike other enemies with increased perception (such as Snipers, [[Vanguard Sword]], and enemies under the effect of a power like [[Leadership#Tactics|Tactics]]), Drones and Sentries do not have an enlarged aggro radius. Drones and Sentries will wait until a character is at normal aggro radius (45 feet), meaning they do ''not'' have higher than normal perception.
* [[Rikti#Drone|Rikti Drones]] (including the Improved and Advanced Drones)
* [[Soldiers of Rularuu#Watcher|Rularuu Sentries]] (all ranks: Watcher, Observer, and Overseer)
* [[Knives of Artemis]]


Many [[Stalker]]s have found difficulty running to the end of a Rikti mission without being shot by Drones. Drones and Sentries don't care how much stealth a character may have; they still attack from normal range. Players testing aggro and stealth mechanics have loaded themselves up with as much stealth as is allowed in the game, approached a Sentry, and are still attacked at 45 feet. '''Rikti Drones and Rularuu Sentries ignore stealth.''' This does make some sense for alien machines built with sophisticated scanners, and for otherworldly eyeball monsters, but it may seem confusing for players unfamiliar with this fact.
The enemies which ignore stealth all have their own legitimate reasons. Alien machines built with sophisticated scanners, otherworldly eyeball monsters, or tactical goggles, for example.


There are some enemies, most notably [[Longbow#Longbow_Eagle|Longbow Eagles]] and some members of [[The Cabal]] that have a power called '''[Positioning]''' that makes these enemies appear to ignore stealth at times.  These enemies are not meant to fight at melee range and Positioning forces them to move away from players.  A side effect of this power is that it acts as a short range (8') Area of Effect attack.  This "attack" forces stealth to suppress, allowing the enemy to see the player.


== Attacking Stealthy Opponents ==
== Attacking Stealthy Opponents ==
Stealthy opponents can be affected by powers even when they can't be detected. They simply can't be ''targeted''. [[PBAoE]] powers can hit enemies if they're in the area, as can AoEs that are aimed at a spot on the ground. Targeted and cone AoEs can also hit hidden targets if aimed at visible ones close to them. A character can '''not''' [[assist]] a teammate that can see stealthy foes.
Stealthy opponents can be affected by powers even when they can't be detected. They simply can't be ''targeted''. [[PBAoE]] powers can hit enemies if they're in the area, as can AoEs that are aimed at a spot on the ground. Targeted and cone AoEs can also hit hidden targets if aimed at visible ones close to them. A character can '''not''' [[assist]] a teammate that can see stealthy foes.
== Maximums and Minimums ==
See the article on [[Limits#Stealth and Perception|Limits]] to for more information about maximum and minimum values for stealth and perception.




== Powers that Utilize Stealth ==
== Powers that Utilize Stealth ==
=== Perception Powers ===
=== Perception Powers ===
Here is an example listing of the perception bonuses or penalties granted by various powers. Note that [[Leadership#Tactics|Tactics]] applies its bonus to everyone on the team within line of sight and range. At least some powers that give perception bonuses vary their bonuses depending on character level. This listing is not necessarily complete.
Here is an example listing of the perception bonuses or penalties granted by various powers. Note that [[Leadership#Tactics|Tactics]] applies its bonus to everyone on the team within line of sight and range. At least some powers that give perception bonuses vary their bonuses depending on character level. This listing is not necessarily complete.


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|}
|}


The Perception bonus from Tactics varies depending on the level and AT of the character using it. See the [[Leadership]] Power Pool page for more details.
The perception bonus from Tactics varies depending on the [[level]] and [[archetype]] of the character using it. See the [[Leadership]] [[Power Pools|Power Pool]] page for more details.




=== Stealth Powers ===
=== Stealth Powers ===
 
Here is an example listing of the stealth granted by various powers. This listing is not necessarily complete.
Here is an example listing of the stealth granted by various powers. Most stealth powers give the same stealth radius as the [[Concealment#Stealth|Stealth]] power from the [[Concealment]] pool. This listing is not necessarily complete.


{| class="wikitable sortable"
{| class="wikitable sortable"
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* [[Luminous Aura#Quantum Flight|Quantum Flight]]
* [[Luminous Aura#Quantum Flight|Quantum Flight]]
* [[Umbral Aura#Nebulous Form|Nebulous Form]]
* [[Umbral Aura#Nebulous Form|Nebulous Form]]
|align="right"|250
|align="right"|25
|-valign="top"
||Minor Stealth
||
* [[Grant_Invisibility_(Empowerment)|Grant Invisibility]] (from<br />
[[Empowerment_Station|Empowerment Station Buff]])
|align="right"|250
|align="right"|250
|align="right"|25
|align="right"|25
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||
||
* [[Stealth IOs]]
* [[Stealth IOs]]
* [[Grant_Invisibility_(Empowerment)|Grant Invisibility]] (from<br />
[[Empowerment_Station|Empowerment Station Buff]])
|align="right"|300
|align="right"|300
|align="right"|30
|align="right"|30
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||Invisibility †
||Invisibility †
||
||
* [[Concealment#Grant_Invisibility|Grant Invisibility]] (from<br />
[[Concealment|Concealment Pool]])
* [[Concealment#Invisibility|Invisibility]]
* [[Concealment#Invisibility|Invisibility]]
* [[Combat Invisibility]]
* [[Combat Invisibility]]
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|}
|}


Although Superior Invisibility provides 1000 feet of PvP stealth, the power is only available to [[Controller]]s, and the Controller PvP stealth cap is 571.5. While the extra 428.5 feet can act as a buffer to -Stealth powers such as [[Ice Control#Arctic Air|Arctic Air]], it would require 13 stacks of Arctic Air to go below a Controller's stealth cap.
'''NOTE:''' Although Superior Invisibility provides 1000 feet of PvP stealth, the power is only available to [[Controller]]s, and the Controller PvP stealth cap is 571.5. While the extra 428.5 feet can act as a buffer to -Stealth powers such as [[Ice Control#Arctic Air|Arctic Air]], it would require 13 stacks of Arctic Air to go below a Controller's stealth cap.


== See Also ==
=== Stacking Stealth ===
* [[Limits#Stealth and Perception|Limits]]
Stealth power stacking was altered in [[Issue_27_Page_5#Stealth_Toggle_Exclusivity_Removal]]. Toggles with a stealth component are no longer mutually exclusive but cannot stack, only the highest value applies.
 
Stealth from these toggles can still be stacked with non-toggle sources of stealth, such as:
 
[[Stealth IOs]]
 
[[Grant_Invisibility]] from the Concealment power pool
 
[[Group_Invisibility]] from the Illusion power set
 
[[Grant_Invisibility_(Empowerment)]] the SG Base empowerment buff
 
== Maximums and Minimums ==
See the article on [[Limits#Stealth and Perception|Limits]] to for more information about maximum and minimum values for stealth and perception.


[[Category:Gameplay]]
[[Category:Gameplay]]

Latest revision as of 19:53, 7 November 2023

Overview

A player or critter's Perception is simply the maximum distance, measured in feet, at which it can detect hostile targets. For players, it also affects the maximum distance at which targeted powers can be used against that enemy. Critters aren't limited this way. Once a critter becomes aggressive toward something, its AI remains aware of that target's exact location and can chase and attack it regardless of perception until it reverts to peaceful.

The Stealth of a target reduces the radius at which an enemy can see the target, making it possible for up-close sneak attacks. The Stalker archetype often relies on attacking from Hide, which is an alternate form of stealth unique to the Stalker archetype.

Example: Normally, if Character stood 45 feet from a Troll, he would need a perception radius of 45 feet to notice she was there. If Character had a stealth radius of 35 feet, he would need a perception radius of 80 feet to detect her. Or in other words, Character could stand up to 10 feet away from the Troll and not be seen; however, the Troll would see her if she moved any closer.

If Character has as much stealth as, or more stealth than, the perception of the enemy, Character will be invisible no matter how close she gets.

Everything has some amount of perception to begin with. The exact amount varies greatly:

Nothing has any stealth radius inherently. It must be granted by powers.

Notice that players have much higher perception than critters do. Because of this, all stealth powers have two values, one that applies to critters and one that applies to other players.

Ignoring Stealth

Snipers, like all enemies, will attack a character as soon as they can see the character (also called their "aggro radius") - if the character has no stealth, this means from 149 feet away instead of the standard 45 feet. This is due to their extra perception radius. They do not ignore stealth, they simply can see farther, canceling out some of the stealth radius a character may have.

However, there are enemies which ignore stealth. The enemy will not react to a player using no stealth from a further distance (as enemies with higher base perception, or perception buffs will), but as soon as a stealthed player is in range, the stealth-ignoring enemy will attack regardless. Enemies which ignore stealth completely include:

The enemies which ignore stealth all have their own legitimate reasons. Alien machines built with sophisticated scanners, otherworldly eyeball monsters, or tactical goggles, for example.

There are some enemies, most notably Longbow Eagles and some members of The Cabal that have a power called [Positioning] that makes these enemies appear to ignore stealth at times. These enemies are not meant to fight at melee range and Positioning forces them to move away from players. A side effect of this power is that it acts as a short range (8') Area of Effect attack. This "attack" forces stealth to suppress, allowing the enemy to see the player.

Attacking Stealthy Opponents

Stealthy opponents can be affected by powers even when they can't be detected. They simply can't be targeted. PBAoE powers can hit enemies if they're in the area, as can AoEs that are aimed at a spot on the ground. Targeted and cone AoEs can also hit hidden targets if aimed at visible ones close to them. A character can not assist a teammate that can see stealthy foes.


Powers that Utilize Stealth

Perception Powers

Here is an example listing of the perception bonuses or penalties granted by various powers. Note that Tactics applies its bonus to everyone on the team within line of sight and range. At least some powers that give perception bonuses vary their bonuses depending on character level. This listing is not necessarily complete.

Power Name Percentage Modifier Absolute Modifier
Tactics (bonus increases at higher levels, and varies with different ATs) +28.28% – +86.5% +141.4 – +432.5
Primary, secondary, and ancillary power pool perception toggles, such as: Focused Senses, Cloak of Darkness, Danger Sense, Glacial Armor, Targeting Drone, Focused Accuracy +60% +300
Rectified Reticle: Increased Perception, a unique To Hit Buff set crafted enhancement +20% +100
Smoke available to Controllers and Dominators; Flash Arrow for Defenders, Masterminds, Corruptors, and Controllers; Smoke Grenade available to Blasters and Arachnos Widows; Blinding Powder available to Stalkers -90% -450

The perception bonus from Tactics varies depending on the level and archetype of the character using it. See the Leadership Power Pool page for more details.


Stealth Powers

Here is an example listing of the stealth granted by various powers. This listing is not necessarily complete.

Power Grouping Example Powers PvP Stealth PvE Stealth
Phase Shift 250 25
Minor Stealth

Empowerment Station Buff)

250 25
Weak Stealth 300 30
PvE-Only Stealth 0 35
Normal Stealth 389 35
Better Stealth 400 40
Excellent Stealth * 500 50
Invisibility †

Concealment Pool)

611 55
Group Invisibility † 667 60
Shadowy Presence † 5,000 100
Hide ‡ 500 150
Superior Invisibility ‡ 1,000 200
* Provides invisibility to Minions and Lieutenants.
† Provides invisibility to Minions, Lieutenants, Bosses, Elite Bosses, and Archvillains.
‡ Provides invisibility to Minions, Lieutenants, Bosses, Elite Bosses, Archvillains, Turrets, Giant Monsters, and Snipers.

NOTE: Although Superior Invisibility provides 1000 feet of PvP stealth, the power is only available to Controllers, and the Controller PvP stealth cap is 571.5. While the extra 428.5 feet can act as a buffer to -Stealth powers such as Arctic Air, it would require 13 stacks of Arctic Air to go below a Controller's stealth cap.

Stacking Stealth

Stealth power stacking was altered in Issue_27_Page_5#Stealth_Toggle_Exclusivity_Removal. Toggles with a stealth component are no longer mutually exclusive but cannot stack, only the highest value applies.

Stealth from these toggles can still be stacked with non-toggle sources of stealth, such as:

Stealth IOs

Grant_Invisibility from the Concealment power pool

Group_Invisibility from the Illusion power set

Grant_Invisibility_(Empowerment) the SG Base empowerment buff

Maximums and Minimums

See the article on Limits to for more information about maximum and minimum values for stealth and perception.