Vision

Info

Vision changes around while the hero moves.

Vision describes what a unit can and cannot see from its current location and state. Places a unit cannot see are filled with the Fog of War, a dark mist that hides units inside of it. Invisible units cannot be seen even when outside of the Fog of War, unless they are spotted by a source of True Sight Invisibility is a status effect which makes units and heroes not appear on their opponent s screen or minimap, and makes them unable to be targeted directly by the enemy. Invisibility makes the unit s model appear . Units cannot see through trees or to higher elevations - the only exceptions to this rule are flying units, who have unrestricted vision, and Night Stalker   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Night Stalker 23 + 3.1 18 + 2.25 16 / Keeper of the Light   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs     Keeper of the Light 14 + 2.1 15 + 1.6 25 + with an Aghanim`s Scepter   Item   Upgraded Abilities   Old Abilities   Lore   Changelogs     Aghanim s Scepter The scepter of a wizard with demigod-like powers. Cost4200 Bought FromCaster Passive Ultimate Upgrade Bonus +10 Strength+10 Agility+10 Intelligence+175 at night/day.

All units on your team share vision, which means that if a unit can see through the Fog of War, all allies can as well. This also applies to lane creeps Lane creeps are a form of creep that automatically move down the three lanes towards the enemy faction s base. Each and every 30 seconds a new group (the creep wave) spawns for each faction at , other controlled creeps, and buildings Buildings are special units that are immune to most spells, use structure armor, and are immobile. Destroying a building rewards you with a bounty, similar to most creeps or heroes. Destroying towers rewards the entire .

Fog of War

All areas outside of friendly vision are constantly covered by the "Fog of War". Any non-friendly units within the Fog of War cannot be seen or targeted (it is effectively invisible), however they can still be hit by non-targeted spells. To reveal units in the Fog of War, an allied unit must gain vision in that area. Observer Wards   Item   Changelogs     Observer WardB A form of half-sentient plant, often cultivated by apprentice wizards. Cost60 Bought FromConsumables Active Place Observer Ward Charges 1 Disassemble? No Alert allies? No Recipe Observer Ward provide vision in an area to their team.

If an enemy unit in the Fog of War attacks or targets a spell on a friendly unit, a 100 radius small area around them is revealed for 2 seconds.

Unit Target abilities are cancelled if vision of the target is lost, even if the cast animation   Cast Animation   Cast Point   Cast Backswing     Every unit has unique cast animations for each of their spells. The cast animation of a spell is enacted as soon as a target already began.

Videos

Elevation

Units cannot see areas that are on higher elevations than them.

Units cannot see areas that are on higher elevations than them, while units on higher ground receive unrestricted vision below. Additionally, any ranged units attacking an enemy on higher elevation have a 25% chance to miss their target.

Trees

See more: Trees Trees on the Radiant and Dire sides of the map. Trees are a terrain featureSpecial attraction in Dota 2. They make up a large amount of the map, and are very prominent in the forests that

Trees Trees on the Radiant and Dire sides of the map. Trees are a terrain feature in Dota 2. They make up a large amount of the map, and are very prominent in the forests that also block vision, and can be used to escape enemies by running through small gaps in them (known as "juking"). When trees are cut down or destroyed, they no longer block vision.

Day and night vision ranges

Most units have different vision ranges for the day and night cycles. Generally, units see a lot farther during the day than they do at night.

Heroes

Most heroes have 1800 units of vision during the day, and 800 at night, though there are several exceptions. This makes ganking a lot more viable at night, because heroes can get much closer without being detected. Heroes can increase their night vision by equipping Moon Shard   Item   Changelogs     Moon ShardS Said to be a tear from the lunar goddess Selemene. Cost4000 Bought FromCommon Active Consume Charges 1 Passive Shade Sight Bonus +120 Attack speed Disassemble? No Alert which passively grants 300 bonus night vision, or consume it to gain 150 night vision permanently.

Below is a table of all heroes which do not have the standard 1800/800:

Hero	Day	Night
Batrider   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Batrider 23 + 2.7 15 + 1.5 24 +	1200	800
Bounty Hunter "Bounty" redirects here. For the reward earned from last-hits, see Gold.   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs	1800	1000
Luna   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Luna 15 + 2.5 18 + 3.3 16 +	1800	800/1050/1300/1550/18001
Lycan   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs     Lycan 25 + 3.3 16 + 1 17 + 1.55 Level Base	1800	800/18002
Night Stalker   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Night Stalker 23 + 3.1 18 + 2.25 16	1200	1800
Slark   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs     Slark 20 + 1.9 21 + 1.5 16 + 1.7 Level Base	1800	1800
Sniper   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs     Sniper 16 + 2 21 + 2.5 15 + 2.6 Level Base	1800	1100
Winter Wyvern   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Winter Wyvern 24 + 2.4 16 + 1.9 25	1800	800/12003

¹ Luna   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Luna 15 + 2.5 18 + 3.3 16 + `s night vision increases to 1050/1300/1550/1800 upon learning different levels of Lunar Blessing.

² Lycan   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs     Lycan 25 + 3.3 16 + 1 17 + 1.55 Level Base `s night vision increases to 1800 during Shapeshift.

³ Winter Wyvern   Hero   Strategy   Counters   Equipment   Gear   Responses   Sounds   Lore   Old Abilities   Changelogs   Known Bugs     Winter Wyvern 24 + 2.4 16 + 1.9 25 `s night vision increases to 1200 during Arctic Burn.

Buildings

Allied buildings Buildings are special units that are immune to most spells, use structure armor, and are immobile. Destroying a building rewards you with a bounty, similar to most creeps or heroes. Destroying towers rewards the entire share vision through the Fog of War with their entire team. Below is a table listing the vision ranges of all buildings:

Building	Day	Night	True Sight	Attack
Towers Buildings are special units that are immune to most spells, use structure armor, and are immobile. Destroying a building rewards you with a bounty, similar to most creeps or heroes. Destroying towers rewards the entire	1900	800	700	700
Barracks Buildings are special units that are immune to most spells, use structure armor, and are immobile. Destroying a building rewards you with a bounty, similar to most creeps or heroes. Destroying towers rewards the entire	900	600	N/A	N/A
Ancients	2600	2600	900	N/A
Fountains Buildings are special units that are immune to most spells, use structure armor, and are immobile. Destroying a building rewards you with a bounty, similar to most creeps or heroes. Destroying towers rewards the entire	1800	1800	1200	1200
Filler buildings Buildings are special units that are immune to most spells, use structure armor, and are immobile. Destroying a building rewards you with a bounty, similar to most creeps or heroes. Destroying towers rewards the entire	800	550	N/A	N/A

Neutrals and Summons

Flying vision

Flying vision gives unrestricted vision in an area, so it is not blocked by trees or obstacles and can see all elevations.

Note: Night Stalker and Keeper of the Light may have unobstructed vision during night and day correspondingly if they purchase Aghanim`s Scepter   Item   Upgraded Abilities   Old Abilities   Lore   Changelogs     Aghanim s Scepter The scepter of a wizard with demigod-like powers. Cost4200 Bought FromCaster Passive Ultimate Upgrade Bonus +10 Strength+10 Agility+10 Intelligence+175 .

Ground vision

Also known as normal unit vision, standard vision, and hero vision. This type of vision is blocked by trees, other obstacles, and elevation. All heroes have ground vision by default.

Shared vision

Some spells share the vision of an enemy unit with your team. Most of these spells allow you to see what the enemy unit sees and some only provide vision over the enemy hero model.

Fog of War

All areas outside of allied vision become covered in the fog of war. Any enemy units within the fog of war cannot be seen or targeted, unless affected by Bloodseeker`s Thirst in which you can.

To reveal units in the fog of war, an allied unit or ability must gain vision in that area. Observer Wards can provide vision in a large area to their team. The Roshan pit has a deep fog that cannot be seen into unless there is an ally inside it or a unit has flying vision.

If a unit in the fog of war attacks an enemy that does not have vision of them, the attacker will be revealed for a few seconds.

Day and Night cycle

Most units have different vision ranges for the day and night cycle. Generally, units see a lot farther during the day than they do at night. Most heroes have 1800 vision range during the day, and 800 at night, though there are several exceptions. This makes ganking more viable at night, because heroes can get much closer without being detected.

Below is a table of all exceptions to the 1800 / 800 hero vision rule:

Vision Types

Ground Vision

This is the default for most units. They cannot see areas that are on higher ground than themselves, and units on higher ground receive unobstructed vision below. Trees will also block vision, and can be used to escape enemies by running through small gaps in between them. Trees can be cut down or destroyed to longer block vision.

Sources of ground vision from spells:

Flying Vision

This provides unobstructed vision at all levels of elevation. A unit with flying vision can see the high ground above them, and will not have their vision blocked by trees.

Sources of flying vision from spells: