Ability to See. Darkness and other effects can interfere with vision by making a given area lightly or heavily obscured.​​

The presence or absence of light in an environment creates three categories of illumination:

  • Bright light lets most creatures see normally. 

 

See the sources of light table.

Obstructions can interfere with vision.

 

The distance between viewer and object, and size of  object, can sometimes affect vision.

If you have darkvision or another special sense, your reliance on light is less or non-existent.