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If a character has darkvision, can they see through an area of nonmagical darkness filled with lightly obscuring gas?



The 2019 Stack Overflow Developer Survey Results Are InDoes skulker remove the attack penalty for targeting creatures in low-light? Also, does that stack with Darkvision?Which is the correct rules text for Darkvision?Attempting to Replace DarkvisionInteraction between perception and stealth in obscured conditionsWith the Skulker feat, can you hide in the cover of darkness even against creatures with darkvision?What does the UA ranger's Underdark Scout feature do?How does dim light affect passive perception?Obscurement encounter advice with size differencesWhat’s the interaction between darkvision and the Eagle Aspect of the beast?Can characters who can't see move through an area just as easily as characters who can see?



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12












$begingroup$


I'm running a premade campaign which states that all the rooms are filled with a gas that makes the whole area lightly obscured (disadvantage on Perception checks).



A character with darkvision without light, treats areas of mundane darkness as dim light. Dim light counts as lightly obscured as well.



What happens if there is something beyond the reach of light, but within his darkvision range? Is it heavily obscured for him (lightly obscured [darkness -> dim] + lightly obscured [gas] = heavily obscured)?










share|improve this question











$endgroup$







  • 1




    $begingroup$
    I read the premise as being that the character (or whatever they're trying to perceive) is in darkness, which they can treat as dim light because of darkvision, but also in a lightly-obscured fog. The question is perhaps really about how to adjudicate the combination of different factors which all contribute to obscuring vision - does lightly-obscured + lightly-obscured = heavily-obscured?
    $endgroup$
    – Carcer
    Mar 23 at 17:50










  • $begingroup$
    @Bandaro thanks for the checkmark, but do note that you can always switch it to another answer later if another more helpful one comes in, and sometimes it is even good to wait a bit before giving it out. Of course, the choice is completely yours.
    $endgroup$
    – Rubiksmoose
    Mar 23 at 18:04










  • $begingroup$
    @Rubiksmoose I found your answer very clear and so I checkmarked it quite soon. But I will check back later to see if other people agree or disagree.
    $endgroup$
    – Bandaro
    Mar 23 at 18:19






  • 1




    $begingroup$
    Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance.
    $endgroup$
    – V2Blast
    Mar 23 at 18:50

















12












$begingroup$


I'm running a premade campaign which states that all the rooms are filled with a gas that makes the whole area lightly obscured (disadvantage on Perception checks).



A character with darkvision without light, treats areas of mundane darkness as dim light. Dim light counts as lightly obscured as well.



What happens if there is something beyond the reach of light, but within his darkvision range? Is it heavily obscured for him (lightly obscured [darkness -> dim] + lightly obscured [gas] = heavily obscured)?










share|improve this question











$endgroup$







  • 1




    $begingroup$
    I read the premise as being that the character (or whatever they're trying to perceive) is in darkness, which they can treat as dim light because of darkvision, but also in a lightly-obscured fog. The question is perhaps really about how to adjudicate the combination of different factors which all contribute to obscuring vision - does lightly-obscured + lightly-obscured = heavily-obscured?
    $endgroup$
    – Carcer
    Mar 23 at 17:50










  • $begingroup$
    @Bandaro thanks for the checkmark, but do note that you can always switch it to another answer later if another more helpful one comes in, and sometimes it is even good to wait a bit before giving it out. Of course, the choice is completely yours.
    $endgroup$
    – Rubiksmoose
    Mar 23 at 18:04










  • $begingroup$
    @Rubiksmoose I found your answer very clear and so I checkmarked it quite soon. But I will check back later to see if other people agree or disagree.
    $endgroup$
    – Bandaro
    Mar 23 at 18:19






  • 1




    $begingroup$
    Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance.
    $endgroup$
    – V2Blast
    Mar 23 at 18:50













12












12








12





$begingroup$


I'm running a premade campaign which states that all the rooms are filled with a gas that makes the whole area lightly obscured (disadvantage on Perception checks).



A character with darkvision without light, treats areas of mundane darkness as dim light. Dim light counts as lightly obscured as well.



What happens if there is something beyond the reach of light, but within his darkvision range? Is it heavily obscured for him (lightly obscured [darkness -> dim] + lightly obscured [gas] = heavily obscured)?










share|improve this question











$endgroup$




I'm running a premade campaign which states that all the rooms are filled with a gas that makes the whole area lightly obscured (disadvantage on Perception checks).



A character with darkvision without light, treats areas of mundane darkness as dim light. Dim light counts as lightly obscured as well.



What happens if there is something beyond the reach of light, but within his darkvision range? Is it heavily obscured for him (lightly obscured [darkness -> dim] + lightly obscured [gas] = heavily obscured)?







dnd-5e vision-and-light






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 23 at 18:50









V2Blast

26.4k591161




26.4k591161










asked Mar 23 at 17:40









BandaroBandaro

634




634







  • 1




    $begingroup$
    I read the premise as being that the character (or whatever they're trying to perceive) is in darkness, which they can treat as dim light because of darkvision, but also in a lightly-obscured fog. The question is perhaps really about how to adjudicate the combination of different factors which all contribute to obscuring vision - does lightly-obscured + lightly-obscured = heavily-obscured?
    $endgroup$
    – Carcer
    Mar 23 at 17:50










  • $begingroup$
    @Bandaro thanks for the checkmark, but do note that you can always switch it to another answer later if another more helpful one comes in, and sometimes it is even good to wait a bit before giving it out. Of course, the choice is completely yours.
    $endgroup$
    – Rubiksmoose
    Mar 23 at 18:04










  • $begingroup$
    @Rubiksmoose I found your answer very clear and so I checkmarked it quite soon. But I will check back later to see if other people agree or disagree.
    $endgroup$
    – Bandaro
    Mar 23 at 18:19






  • 1




    $begingroup$
    Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance.
    $endgroup$
    – V2Blast
    Mar 23 at 18:50












  • 1




    $begingroup$
    I read the premise as being that the character (or whatever they're trying to perceive) is in darkness, which they can treat as dim light because of darkvision, but also in a lightly-obscured fog. The question is perhaps really about how to adjudicate the combination of different factors which all contribute to obscuring vision - does lightly-obscured + lightly-obscured = heavily-obscured?
    $endgroup$
    – Carcer
    Mar 23 at 17:50










  • $begingroup$
    @Bandaro thanks for the checkmark, but do note that you can always switch it to another answer later if another more helpful one comes in, and sometimes it is even good to wait a bit before giving it out. Of course, the choice is completely yours.
    $endgroup$
    – Rubiksmoose
    Mar 23 at 18:04










  • $begingroup$
    @Rubiksmoose I found your answer very clear and so I checkmarked it quite soon. But I will check back later to see if other people agree or disagree.
    $endgroup$
    – Bandaro
    Mar 23 at 18:19






  • 1




    $begingroup$
    Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance.
    $endgroup$
    – V2Blast
    Mar 23 at 18:50







1




1




$begingroup$
I read the premise as being that the character (or whatever they're trying to perceive) is in darkness, which they can treat as dim light because of darkvision, but also in a lightly-obscured fog. The question is perhaps really about how to adjudicate the combination of different factors which all contribute to obscuring vision - does lightly-obscured + lightly-obscured = heavily-obscured?
$endgroup$
– Carcer
Mar 23 at 17:50




$begingroup$
I read the premise as being that the character (or whatever they're trying to perceive) is in darkness, which they can treat as dim light because of darkvision, but also in a lightly-obscured fog. The question is perhaps really about how to adjudicate the combination of different factors which all contribute to obscuring vision - does lightly-obscured + lightly-obscured = heavily-obscured?
$endgroup$
– Carcer
Mar 23 at 17:50












$begingroup$
@Bandaro thanks for the checkmark, but do note that you can always switch it to another answer later if another more helpful one comes in, and sometimes it is even good to wait a bit before giving it out. Of course, the choice is completely yours.
$endgroup$
– Rubiksmoose
Mar 23 at 18:04




$begingroup$
@Bandaro thanks for the checkmark, but do note that you can always switch it to another answer later if another more helpful one comes in, and sometimes it is even good to wait a bit before giving it out. Of course, the choice is completely yours.
$endgroup$
– Rubiksmoose
Mar 23 at 18:04












$begingroup$
@Rubiksmoose I found your answer very clear and so I checkmarked it quite soon. But I will check back later to see if other people agree or disagree.
$endgroup$
– Bandaro
Mar 23 at 18:19




$begingroup$
@Rubiksmoose I found your answer very clear and so I checkmarked it quite soon. But I will check back later to see if other people agree or disagree.
$endgroup$
– Bandaro
Mar 23 at 18:19




1




1




$begingroup$
Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance.
$endgroup$
– V2Blast
Mar 23 at 18:50




$begingroup$
Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance.
$endgroup$
– V2Blast
Mar 23 at 18:50










1 Answer
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active

oldest

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13












$begingroup$

RAW different sources of obscurement don't stack



Nothing in the rules says that having multiple things that cause an area to be considered lightly obscured make it considered to be heavily obscured.




In a lightly obscured area, such as dim light, patchy fog, or moderate foliage, creatures have disadvantage on Wisdom (Perception) checks that rely on sight.




So, for example if you were to have foliage in a place and also dim light that would not make that space heavily obscured according to the rules, because heavily obscured has a specific definition of its own.




A heavily obscured area--such as darkness, opaque fog, or dense foliage--blocks vision entirely.




In your specific example, the character with darkvision will see in an area of low light as if it were lightly obscured.



There are simply no mechanics in the rules that say how that this would happen and, if so, how it would work.



Having the fog which also causes it to be lightly obscured does not cause it to be considered to be heavily obscured for that character. For that to happen you would have to have something that would cause the character to not be able to see that area at all.



DM rulings apply here naturally



Now, the rules don't specifically say that stacking different sources of obscurement is not allowed and thus it is well within the power of a DM to say that having enough sources of obscurement might indeed add up to an effect that counts as heavily obscured. In fact, the determination of obscurement is largely placed in their hands anyways since it is only very loosely defined in the rules.



Thus, this could be a reasonable ruling, but it will vary from table to table what the DM wants to counts as "obscured enough" to bump an effect up to heavily obscured.






share|improve this answer











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    1 Answer
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    1 Answer
    1






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    active

    oldest

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    active

    oldest

    votes









    13












    $begingroup$

    RAW different sources of obscurement don't stack



    Nothing in the rules says that having multiple things that cause an area to be considered lightly obscured make it considered to be heavily obscured.




    In a lightly obscured area, such as dim light, patchy fog, or moderate foliage, creatures have disadvantage on Wisdom (Perception) checks that rely on sight.




    So, for example if you were to have foliage in a place and also dim light that would not make that space heavily obscured according to the rules, because heavily obscured has a specific definition of its own.




    A heavily obscured area--such as darkness, opaque fog, or dense foliage--blocks vision entirely.




    In your specific example, the character with darkvision will see in an area of low light as if it were lightly obscured.



    There are simply no mechanics in the rules that say how that this would happen and, if so, how it would work.



    Having the fog which also causes it to be lightly obscured does not cause it to be considered to be heavily obscured for that character. For that to happen you would have to have something that would cause the character to not be able to see that area at all.



    DM rulings apply here naturally



    Now, the rules don't specifically say that stacking different sources of obscurement is not allowed and thus it is well within the power of a DM to say that having enough sources of obscurement might indeed add up to an effect that counts as heavily obscured. In fact, the determination of obscurement is largely placed in their hands anyways since it is only very loosely defined in the rules.



    Thus, this could be a reasonable ruling, but it will vary from table to table what the DM wants to counts as "obscured enough" to bump an effect up to heavily obscured.






    share|improve this answer











    $endgroup$

















      13












      $begingroup$

      RAW different sources of obscurement don't stack



      Nothing in the rules says that having multiple things that cause an area to be considered lightly obscured make it considered to be heavily obscured.




      In a lightly obscured area, such as dim light, patchy fog, or moderate foliage, creatures have disadvantage on Wisdom (Perception) checks that rely on sight.




      So, for example if you were to have foliage in a place and also dim light that would not make that space heavily obscured according to the rules, because heavily obscured has a specific definition of its own.




      A heavily obscured area--such as darkness, opaque fog, or dense foliage--blocks vision entirely.




      In your specific example, the character with darkvision will see in an area of low light as if it were lightly obscured.



      There are simply no mechanics in the rules that say how that this would happen and, if so, how it would work.



      Having the fog which also causes it to be lightly obscured does not cause it to be considered to be heavily obscured for that character. For that to happen you would have to have something that would cause the character to not be able to see that area at all.



      DM rulings apply here naturally



      Now, the rules don't specifically say that stacking different sources of obscurement is not allowed and thus it is well within the power of a DM to say that having enough sources of obscurement might indeed add up to an effect that counts as heavily obscured. In fact, the determination of obscurement is largely placed in their hands anyways since it is only very loosely defined in the rules.



      Thus, this could be a reasonable ruling, but it will vary from table to table what the DM wants to counts as "obscured enough" to bump an effect up to heavily obscured.






      share|improve this answer











      $endgroup$















        13












        13








        13





        $begingroup$

        RAW different sources of obscurement don't stack



        Nothing in the rules says that having multiple things that cause an area to be considered lightly obscured make it considered to be heavily obscured.




        In a lightly obscured area, such as dim light, patchy fog, or moderate foliage, creatures have disadvantage on Wisdom (Perception) checks that rely on sight.




        So, for example if you were to have foliage in a place and also dim light that would not make that space heavily obscured according to the rules, because heavily obscured has a specific definition of its own.




        A heavily obscured area--such as darkness, opaque fog, or dense foliage--blocks vision entirely.




        In your specific example, the character with darkvision will see in an area of low light as if it were lightly obscured.



        There are simply no mechanics in the rules that say how that this would happen and, if so, how it would work.



        Having the fog which also causes it to be lightly obscured does not cause it to be considered to be heavily obscured for that character. For that to happen you would have to have something that would cause the character to not be able to see that area at all.



        DM rulings apply here naturally



        Now, the rules don't specifically say that stacking different sources of obscurement is not allowed and thus it is well within the power of a DM to say that having enough sources of obscurement might indeed add up to an effect that counts as heavily obscured. In fact, the determination of obscurement is largely placed in their hands anyways since it is only very loosely defined in the rules.



        Thus, this could be a reasonable ruling, but it will vary from table to table what the DM wants to counts as "obscured enough" to bump an effect up to heavily obscured.






        share|improve this answer











        $endgroup$



        RAW different sources of obscurement don't stack



        Nothing in the rules says that having multiple things that cause an area to be considered lightly obscured make it considered to be heavily obscured.




        In a lightly obscured area, such as dim light, patchy fog, or moderate foliage, creatures have disadvantage on Wisdom (Perception) checks that rely on sight.




        So, for example if you were to have foliage in a place and also dim light that would not make that space heavily obscured according to the rules, because heavily obscured has a specific definition of its own.




        A heavily obscured area--such as darkness, opaque fog, or dense foliage--blocks vision entirely.




        In your specific example, the character with darkvision will see in an area of low light as if it were lightly obscured.



        There are simply no mechanics in the rules that say how that this would happen and, if so, how it would work.



        Having the fog which also causes it to be lightly obscured does not cause it to be considered to be heavily obscured for that character. For that to happen you would have to have something that would cause the character to not be able to see that area at all.



        DM rulings apply here naturally



        Now, the rules don't specifically say that stacking different sources of obscurement is not allowed and thus it is well within the power of a DM to say that having enough sources of obscurement might indeed add up to an effect that counts as heavily obscured. In fact, the determination of obscurement is largely placed in their hands anyways since it is only very loosely defined in the rules.



        Thus, this could be a reasonable ruling, but it will vary from table to table what the DM wants to counts as "obscured enough" to bump an effect up to heavily obscured.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Mar 23 at 18:14

























        answered Mar 23 at 17:57









        RubiksmooseRubiksmoose

        61.1k10294450




        61.1k10294450



























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