# Is there something screwy with the night vision perk?

**URL:** <https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932>\
**Category:** The Drawing Board\
**Created:** [November 25, 2015, 9:27pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932 "2015-11-25T21:27:47Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![jedibob5](https://avatars.discourse-cdn.com/v4/letter/j/ecccb3/32.png) [@jedibob5](https://discourse.cataclysmdda.org/u/jedibob5)\
**Post date:** [November 25, 2015, 9:27pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/1 "2015-11-25T21:27:47Z")

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It works fine in “very dark” conditions, but if you move into an area of “shady” or “cloudy” lighting, your vision range is seriously reduced compared to very dark. The easiest example of this is moving next to the computer console in the starting evac shelter. if you’re standing two squares away from it, you can dimly see up to five squares out. If you’re one square away or adjacent, it’s pitch black beyond your adjacent squares. What’s up with that?

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**Author:** ![nomzynomnom](https://avatars.discourse-cdn.com/v4/letter/n/7c8e57/32.png) [@nomzynomnom](https://discourse.cataclysmdda.org/u/nomzynomnom)\
**Post date:** [November 25, 2015, 9:32pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/2 "2015-11-25T21:32:48Z")

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I noticed this, it’s REALLY annoying when you’re carrying something that produces dim light, like the atomic nightlight, or something that only gives a 1-tile bright lighting, like the atomic lamp. Doesn’t work with any variant of night vision.

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**Author:** ![Random\_dragon](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@Random\_dragon](https://discourse.cataclysmdda.org/u/Random_dragon)\
**Post date:** [November 25, 2015, 9:42pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/3 "2015-11-25T21:42:49Z")

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It’s even derpier than that.

[https://github.com/CleverRaven/Cataclysm-DDA/issues/13786](https://github.com/CleverRaven/Cataclysm-DDA/issues/13786)

Thankfully some of these oddities have been acknowledged, but fixes are being delayed due to work on z-level vision.

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**Author:** ![Vorchar](https://avatars.discourse-cdn.com/v4/letter/v/5f8ce5/32.png) [@Vorchar](https://discourse.cataclysmdda.org/u/Vorchar)\
**Post date:** [November 26, 2015, 7:24pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/4 "2015-11-26T19:24:59Z")

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Thought this was a feature since you are using your dayvision when in light and nightvision when in dark. Wall thing is a bug I think.

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**Author:** ![Zireael](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/zireael/32/956_2.png) [@Zireael](https://discourse.cataclysmdda.org/u/Zireael)\
**Post date:** [November 26, 2015, 7:52pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/5 "2015-11-26T19:52:37Z")

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NV not working in any sort of light is a feature. Wall thing is a bug.

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**Author:** ![Dampe](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@Dampe](https://discourse.cataclysmdda.org/u/Dampe)\
**Post date:** [November 26, 2015, 8:49pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/6 "2015-11-26T20:49:23Z")

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Yeah, it makes sense. Any sort of light will ruin your natural night vision.

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**Author:** ![Random\_dragon](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@Random\_dragon](https://discourse.cataclysmdda.org/u/Random_dragon)\
**Post date:** [November 26, 2015, 9:25pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/7 "2015-11-26T21:25:40Z")

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True. The “just barely dark enough to hinder daylight vision” thing makes sense, but a source of player confusion.

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**Author:** ![Dampe](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@Dampe](https://discourse.cataclysmdda.org/u/Dampe)\
**Post date:** [November 26, 2015, 10:58pm UTC](https://discourse.cataclysmdda.org/t/is-there-something-screwy-with-the-night-vision-perk/10932/8 "2015-11-26T22:58:51Z")

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Be more realistic if you were in a house and if all the blinds were closed, and your night vision would start to improve over time (45mins-1 hour), but you’d lose it if you turned on a light of any sort.