How far can a human see in Dim Light


Rules Questions


If a human was in the middle of a large open area with Dim Light cast everywhere, how far would he be able to see?

In normal or bright light, in large open area, I can conceive that he would be able to see for miles. In darkness, the answer is simple: he can't. Is there a rule about how far a human can see in dim light? I'll settle for advice.


According to Dim Light under Vision and Light in the Core there doesn't seem to be a limit, I think that's mostly due to dim light being based around mostly light sources.


If the light is dim, he would still be able to see his normal distance, just not as well. Hence the 20% miss chance for concealment other creatures get in combat. In turn giving them the ability to use stealth against the human. It doesn't clearly spell out how well you can see in dim light(or bright light for that matter), but a simple ruling that I would most likely use is that whatever distance you determine is reasonable to be able to clearly see, read, etc. in bright light, half that distance you would be able to do that in dim light. There are no clear rules on that, so it's totally up to GM interpretation.

Edit: Curious how this would even come up since most parties will have access to dancing lights, light, continual flame at a pretty low level. If they don't have that, a +1 weapon can shed light as if it had a light spell on it as well. Either way, hope my post helps.


The human can imperfectly see everywhere the dim light exists. The elf can see in some of the darkness outside of the dim light.

Sczarni

Here is the excerpt from the CRB;

"In an area of dim light, a character can see somewhat. Creatures within this area have concealment (20% miss chance in combat) from those without darkvision or the ability to see in darkness. A creature within an area of dim light can make a Stealth check to conceal itself. Areas of dim light include outside at night with a moon in the sky, bright starlight, and the area between 20 and 40 feet from a torch."

It's feasible you could see for a long way - perhaps as far as you could see during the day, but without the acuity.

I'd just rule that you see normal distance, but creatures can use stealth, have a 20% miss chance on account of concealment etc. etc. as per above.

I'd ignore the part about "an area between 20 and 40 feet from a torch" for your example as that line is referring to an area of darkness being illuminated by a torch (I believe).


In real life, you can resolve the image of a certain size object about a tenth as far away in dim light as you can in bright light.

So, if you can see well enough to recognise an individual 300 feet away in bright light (seems about the limit, using common sense), then you'd need to be 30 feet away to recognise them in dim light.

Presumably, then, an elf could reliably recognise someone in dim light from 60 feet away.


'crb' wrote:
Areas of dim light include outside at night with a moon in the sky, bright starlight

Paizo obviously don't get out at night much; there's a whole world of difference between moonlight and bright starlight.


sgriobhadair wrote:
'crb' wrote:
Areas of dim light include outside at night with a moon in the sky, bright starlight
Paizo obviously don't get out at night much; there's a whole world of difference between moonlight and bright starlight.

Yes, but they've only got 4 levels of (non-supernatural) light to work with.

There's a bigger difference between moonlight and a cloudy day or starlight and an unlit cave.


Ciaran Barnes wrote:
Edit: Curious how this would even come up since most parties will have access to dancing lights, light, continual flame at a pretty low level. If they don't have that, a +1 weapon can shed light as if it had a light spell on it as well. Either way, hope my post helps.

First off, thanks everyone for these quick replies.

The reason I started thinking about this is that I was preparing for an upcoming encounter. One tactic, I was thinking was to cast Deeper Darkness at the start of the encounter which has 60 feet radius and drops bright light to dim light. The foes all have darkvision so they'll have an advantage over the mostly human PCs.

Then, I started to wonder, if a PC is at the edge of the area of effect, can he see a foe on the other side (120feet away). Then I thought about a lone human in moonlight could he see 120feet away? Given the answers above, I think so but not very well so I'll stick to the 20% miss chance everywhere.

And yes, I am sure, someone will take out a light source but that will cost them actions.


Maplewood wrote:
Ciaran Barnes wrote:
Edit: Curious how this would even come up since most parties will have access to dancing lights, light, continual flame at a pretty low level. If they don't have that, a +1 weapon can shed light as if it had a light spell on it as well. Either way, hope my post helps.

First off, thanks everyone for these quick replies.

The reason I started thinking about this is that I was preparing for an upcoming encounter. One tactic, I was thinking was to cast Deeper Darkness at the start of the encounter which has 60 feet radius and drops bright light to dim light. The foes all have darkvision so they'll have an advantage over the mostly human PCs.

Then, I started to wonder, if a PC is at the edge of the area of effect, can he see a foe on the other side (120feet away). Then I thought about a lone human in moonlight could he see 120feet away? Given the answers above, I think so but not very well so I'll stick to the 20% miss chance everywhere.

And yes, I am sure, someone will take out a light source but that will cost them actions.

Remember that mundane or lower-level light sources don't raise the light level in Darkness spells. I assume this encounter is outside in Bright sunlight?

There's also a FAQ entry somewhere that says that you can't see through magical darkness, preventing you from doing things like silhouetting targets in a Darkness shpere against lights from the other side. I'd assume that magical dim light would work the same. It's all cloudy and you can't clearly see targets on the far side, even if they're outside the sphere and back in bright light.


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Vision type alone does not matter. Light Levels alone do not matter. Only the interaction between the two matters.

What I mean is that you have to identify both to understand who can see what when.

In most cases, it is dependent upon the light source. Think of Low Light Vision as "TIMES 2" vision and Darkvision as "0 PLUS X" vision.

Low Light or "TIMES 2" vision.
A character can see "TWICE AS FAR" from a light source. That DOES NOT mean a character can see in dim light. It means that normal light is now twice as far AND dim light is now twice as far. The SPECIAL part of this vision is that they can see at night, if the moon or stars are showing.

Darkvision or "0 PLUS X" vision.
A character with dark vision can see "0 PLUS X" distance away from them, even in darkness (not the magical stuff). For Half-Orcs and Dwarves, it is "0 PLUS 60'".

A single square in the game could be Darkness, Dim Light or Normal Light depending on who is looking at it. And just because an Elf can see it, doesn't mean a Dwarf can. Position matters.

If an elf and a dwarf are standing next to each other and the elf is holding a torch, the elf can see a square 75' away as dim light. It is darkness to the dwarf.


Darkvision has a limit while normal and dim-light don't. Both a Human and an Elf can see wherever there is dim-light; the only difference in this regard is that the Human suffers 20% miss chance trying to hit anything in dim-light while the Elf doesn't. Furthermore, anything standing in Darkness can't be seen at all for the Human while the Elf can see an extra radius of Darkness around a light source and suffers 20% miss chance trying to hit anything in this "semi-lit" darkness. It's still, technically, darkness, but it "serves as" what dim light would be for a creature without dim-light vision.

Here's a diagram I made a while back explaining interactions of light levels and vision types.

Paizo Employee Creative Director

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sgriobhadair wrote:
'crb' wrote:
Areas of dim light include outside at night with a moon in the sky, bright starlight
Paizo obviously don't get out at night much; there's a whole world of difference between moonlight and bright starlight.

Or daytime! We're chained to our desks churning out all these extra books and cards for you to enjoy! :-)

A more serious response to that concern would be that we intentionally oversimplify certain rules to keep things less complex; the line between exact reality simulation and ease of play needs to be drawn somewhere.

To answer the original question... yes, a human can see anything in dim light conditions. The range is set not by human eyesight, but by the effect that creates the dim light. Things with low light vision see twice as far as that dim light range.


Pathfinder Adventure Path Subscriber

Also remember Maplewood that darkvision can't see through deeper darkness. (if that is a concern)


Kazaan wrote:
Darkvision has a limit while normal and dim-light don't. Both a Human and an Elf can see wherever there is dim-light; the only difference in this regard is that the Human suffers 20% miss chance trying to hit anything in dim-light while the Elf doesn't.
Quote:
Characters with low-light vision can see outdoors on a moonlit night as well as they can during the day.

Unless there's another rule I'm missing, that appears to only be true outside under moonlight. Under other dim light conditions Low-light vision still has the 20% miss chance.


"...as well as they can during the day", meaning they suffer no perception penalty nor the 20% miss chance. But that doesn't mean that a creature without LLV can't see in dim light. But how far away is the horizon? For a 6' person, the horizon is roughly 5km (3 miles) away. You can see to the horizon both during the day and during the night, right? There's no magical "wall" that determines that all vision from beyond that distance is cleanly cut off; the sun is 8 light-minutes away and we can still see that. There is no "max distance" when it comes to vision. Dim light may apply an Unfavorable Condition increase to a Perception check DC and distance will also increase the DC, but that just means you can't notice "non-obvious" things. If someone is trying to hide, it's easier to spot them in normal light than it is in dim light and easier still to spot them in bright light. Low-light vision simply means that Low-light is not treated as unfavorable when it comes to perception and you don't suffer the 20% concealment penalty.


One limit on vision distances comes from the book Underdark. It was a 3.5 book.

It states that you can see a light source and the things it lights up 10 times the distance of that source.

So a human could see a torch 200' away while an elf could see that torch from 400' away.

Dim light distances would be 5 times as far.

Another limit is the Perception skill which gives all characters a -1/10' of distance. So even in bright day light, seeing a person at the other end of a football field (300') would be a -30 to the check.

Using either, or both limits should be enough of a guideline to play.


Krodjin wrote:

Here is the excerpt from the CRB;

"In an area of dim light, a character can see somewhat. Creatures within this area have concealment (20% miss chance in combat) from those without darkvision or the ability to see in darkness. A creature within an area of dim light can make a Stealth check to conceal itself. Areas of dim light include outside at night with a moon in the sky, bright starlight, and the area between 20 and 40 feet from a torch."

I see more clearly now (pun intended).

I re-read the vision and light section. The answer is there in how dim light is defined. It says "a character can see somewhat". There is no range limit within this definition, you just don't see as well.

Limits are implicitly defined depending on the light sources or spells or I could impose limits through a perception check as suggested by Komoda. For perception, there are distance modifiers, unfavourable conditions and terrible conditions that can be used.


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3.5 limits, if not reproduced in Pathfinder, are archaic and vestigial topics. Regarding the Perception increase of DC, that applies to trying to spot something that isn't obvious. If I'm looking for someone who's hiding, it would totally apply and there is a distance at which, with a given Perception bonus, even a roll of 20 wouldn't be enough to meet the DC in bright light. But if I'm trying to find spot something obvious, it doesn't make sense that, if the Mountain is a certain distance away, you'd completely miss it. "To the north, you see a forest. You would have seen it earlier, but its graphics have only just popped in." This method of handling vision and perception checks only degrades the game to the level of a mumorpuger with poor draw distance.


Komoda wrote:

One limit on vision distances comes from the book Underdark. It was a 3.5 book.

It states that you can see a light source and the things it lights up 10 times the distance of that source.

So a human could see a torch 200' away while an elf could see that torch from 400' away.

Dim light distances would be 5 times as far.

Another limit is the Perception skill which gives all characters a -1/10' of distance. So even in bright day light, seeing a person at the other end of a football field (300') would be a -30 to the check.

Using either, or both limits should be enough of a guideline to play.

Oh, someone else noticed the thing with perception and distance. I want to bring up the bit about the +2 or -2 to the DC to percieve something due to whether the conditions are 'favorable' or not.

CRB wrote:

Favorable and unfavorable conditions depend upon the sense being used to make the check. For example, bright light might decrease the DC of checks involving sight, while torchlight or moonlight might increase the DC. Background noise might increase a DC involving hearing, while competing odors might increase the DC of a check involving scent.

And the DC to notice a visible creature is 0 (From the same table in the perception rules). So, all we have to do is look for the point where the DC would be impossible to actually make.

Firstly, since this is all based on your perception score, it obviously goes farther if the score is higher (fair enough, since those people have trained their senses better). So lets take out things like feats and ability scores. And lets assume no ranks in perception, so it is just a straight d20 roll. You can later account for things like ranks by adding +10/level +30 if it is a class skill.

With the +1/10 feet away rule, combined with a +2 due to 'unfavorable conditions', then I'd say you can see out to 180 feet before you would be unable to see anything.

Although, I suppose there should be a couple of extra details added to that. I think it would be rather fair to also consider the penalties to stealth due to size. Even if they are not actively trying to hide, it is simply a fact that it would be easier to spot a 32 foot giant than a 1 foot fairy at 100 feet away. So, let us use that penalty to stealth to decrease the perception DC.

That has the advantage that it mechanically accounts for the fact that you can see a mountain from miles away on a moonlit night, so the verisimilitude is nice. It also shows how you can easily not find your car keys (a tiny or diminutive object) right on the table, while you need a rather SEVERE wisdom penalty to not notice a tiger chilling on the table (maybe the wisdom penalty is due to bloodloss from tiger attack?)


Komoda wrote:

One limit on vision distances comes from the book Underdark. It was a 3.5 book.

It states that you can see a light source and the things it lights up 10 times the distance of that source.

So a human could see a torch 200' away while an elf could see that torch from 400' away.

Dim light distances would be 5 times as far.

Another limit is the Perception skill which gives all characters a -1/10' of distance. So even in bright day light, seeing a person at the other end of a football field (300') would be a -30 to the check.

Using either, or both limits should be enough of a guideline to play.

Im pretty sure you could see a candle light in the dark miles away if nothing obstructed it.


Mojo, that might be the case in a somehow completely black area, like say underground. But in most cases there is some sort of light all around. One reason why it is difficult to see stars at night, especially on the East Coast of America, is because of all of the artificial light that interferes with your vision.

There becomes a point that you simply can not gain any benefit from the light. Sometimes you can see the light, but it is so far away you can't see anything near it. Look up in the sky. See the moon? If so, do you see the American flag flying on it? Of course not. It is too far away. You have line of sight. But it is bright enough to give the whole game world the ability to see something. How about the stars and satellites in the sky? Can you perceive them? Satellites are what, light years closer than the stars but you can't tell which is which without some serious help of a telescope.

The game isn't designed to worry about combat stats of light for distances over 200' or so (IMHO). That would be a 40" map, with line of sight. I don't know anyone that plays pathfinder on a table bigger than 96", or 480'.

Combat doesn't care if you can see the mountain. Combat cares if you can see the elf or dwarf or whatever, standing on the mountain. I have never heard of anyone using perception to see a mountain or a forest. I have never heard of anyone using perception to see anything on the campaign scale, only the combat scale. Your GM usually decides what features can be seen at the combat scale.


That just means that maximum range of sight for spotting things that you could otherwise miss is a soft limit, rather than a hard limit, governed by your total Perception bonus, the inherent conditions (ie. dim, normal, or bright light), and distance and the abstracted factors represented by the d20 roll.

There is no hard-set "limit" to normal vision or LLV; only Darkvision has a "max range", beyond which it abruptly "stops". If you approach a Dwarf in a dark tunnel, the Dwarf wouldn't be able to see you until you enter the radius of his DV, at which point you suddenly "pop" in out of the darkness. If you needed to make a Perception check to notice, it would be considered Normal conditions and you'd probably make the check. By contrast, on a moon-lit night, dim light all around, the same Dwarf could make perception checks, with a -2 penalty for unfavorable conditions, to see something creeping around out there in the moonlight and, if he notices said creature, he could take pot shots at it if he has a ranged weapon (albeit, with 20% miss rate from concealment). Only when the creature crosses into his Darkvision radius would this concealment go away.

So, to answer the question, "How far can a human see in Dim Light", it's represented by a bell-curve, the area covered being a function of said Human's perception bonus against the creature's distance and stealth modifier (if they're sneaking).


Mojorat wrote:
Komoda wrote:

One limit on vision distances comes from the book Underdark. It was a 3.5 book.

It states that you can see a light source and the things it lights up 10 times the distance of that source.

So a human could see a torch 200' away while an elf could see that torch from 400' away.

Dim light distances would be 5 times as far.

Another limit is the Perception skill which gives all characters a -1/10' of distance. So even in bright day light, seeing a person at the other end of a football field (300') would be a -30 to the check.

Using either, or both limits should be enough of a guideline to play.

Im pretty sure you could see a candle light in the dark miles away if nothing obstructed it.

Not with the pathfinder rules. You need to be in an area of light to be able to see.

In an area of darkness you're effectively blinded and would not be able to see a torch that is 50 ft away for example.

While those holding the torch are in an area of bright light and can thus see you clearly (unless you're using stealth etc.).


I never bothered to use RAW on light conditions... I simplify it by having just 3 possible lighting conditions: completely clear, dim light and total darkness.

Basically, I just rule that humans can see perfectly up to 30ft on dim-light, anything between 30 and 60ft has partial concealment and anything beyond 60ft has full concealment (Elves can twice as far, of course).

It's not realistic, but it's simple enough. It may need some adjusting to specific situations, but as a rule of thumb, it works just fine.


The last line in my last post should have been campaign scale.

Rikkan, that only counts if it is magical darkness that no light can pass through, not just an area that lacks light.

Silver Crusade

Sorry for necroposting, but reading a discussion and rules quote, I cannot see, why dim light are should be a function of light source.

I used to play having it like that, but now, I feel that I was wrong. It should be 20 feets after light source for human and twice that much for elfs or other low-light vision race. Dwarfs and orcs will have human-like 20 feet range, if light-source is big enough - for example, bonfire that gives 50' light source.

One more question: Mage have a hooded lantern in his hand, that gives 30' light radius. He use it's mage hand spell and rises lantern 15' above head. How big should light radius become? If it sends lantern 60' above head, will it still give you 30' bright light and 60' dim light area?


Komoda wrote:

Mojo, that might be the case in a somehow completely black area, like say underground. But in most cases there is some sort of light all around. One reason why it is difficult to see stars at night, especially on the East Coast of America, is because of all of the artificial light that interferes with your vision.

There becomes a point that you simply can not gain any benefit from the light. Sometimes you can see the light, but it is so far away you can't see anything near it. Look up in the sky. See the moon? If so, do you see the American flag flying on it? Of course not. It is too far away. You have line of sight. But it is bright enough to give the whole game world the ability to see something. How about the stars and satellites in the sky? Can you perceive them? Satellites are what, light years closer than the stars but you can't tell which is which without some serious help of a telescope.

The game isn't designed to worry about combat stats of light for distances over 200' or so (IMHO). That would be a 40" map, with line of sight. I don't know anyone that plays pathfinder on a table bigger than 96", or 480'.

Combat doesn't care if you can see the mountain. Combat cares if you can see the elf or dwarf or whatever, standing on the mountain. I have never heard of anyone using perception to see a mountain or a forest. I have never heard of anyone using perception to see anything on the campaign scale, only the combat scale. Your GM usually decides what features can be seen at the combat scale.

This really has nothing much to do with the game, but with reality. When I was on Isle Royale, out in Lake Superior with absolutely no artificial light anywhere around (the nearest city was about 30 miles away, on the other side of the mountains), and a full moon, I could almost read. I could certainly make out unlit islands (except by the moon) at 2000'. The thing is, if your pupils aren't adjusting to the city lights and skyglow your vision gets -much- better.


Tiaburn wrote:

Sorry for necroposting, but reading a discussion and rules quote, I cannot see, why dim light are should be a function of light source.

I used to play having it like that, but now, I feel that I was wrong. It should be 20 feets after light source for human and twice that much for elfs or other low-light vision race. Dwarfs and orcs will have human-like 20 feet range, if light-source is big enough - for example, bonfire that gives 50' light source.

One more question: Mage have a hooded lantern in his hand, that gives 30' light radius. He use it's mage hand spell and rises lantern 15' above head. How big should light radius become? If it sends lantern 60' above head, will it still give you 30' bright light and 60' dim light area?

Presuming it's a low-light night (ie. moon is out), you can "see" a very long distance. Your vision doesn't "cut off" at a certain point except in darkness or lower. What happens is you suffer a 20% miss chance on attacks due to concealment and suffer additional penalties to Perception checks to notice things. How it should really be run is that you should be rolling Perception to see if you are spotting various things; if you fail the check, you failed to notice it was there. If your perception bonus is bad and the penalties are severe enough, it may be effectively impossible to spot since there isn't auto-succeed on a nat20 for skill checks, but it generally makes a soft, fuzzy, statistical curve that defines your "range of vision", rather than a sharp, clear-cut vision radius.

Regarding the Mage question, you'd need to do some math to calculate the effective sphere of light generated by the Lantern. If the lantern is 60' above you, it is just touching you with the far end of its "increased" radius so, again presuming a low-light night, you yourself would be normally illuminated but it wouldn't help you in a straight radius along the ground. Keep in mind that it's the illumination at the location you're trying to look that determines miss chance and perception penalties. Having your own square illuminated in normal light doesn't help if you're trying to spot something 30' away from you out in the dim light. Likewise, if you're peering out over a moon-lit landscape, spotting a person sitting a half-mile away by a campfire is going to be a normal-light calculation and the only penalty is distance. And this would be a lot easier than trying to spot someone out in the dim light and both are easier than trying to detect someone in darkness because you're relying on non-visual senses (ie. hearing). For reference, a lantern with a Normal radius of 30', 30' in the air, would create a single square of normal light surrounded by about 50' (10 squares) of elevated light level (dim to normal or dark to dim).

0' up: 30 + 30 (60 total)
10': 25 + 35 (60 total)
20': 20 + 35 (55 total)
30': 0 + 50 (50 total)
40': 0 + 45 (45 total)
50': 0 + 35 (35 total)
55': 0 + 20 (20 total)
60': Shining a light upon yourself will not make you enlightened

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