This module provides options to modify Foundry's default methods for measuring visibility range and line-of-sight between tokens. Some options are more performant, while others trade some performance for a more precise method of computing visibility.
As of v0.2.0, this module also optionally assists with cover calculations in a (mostly) system-agnostic manner. Various cover measurement options are provided. A macro is also provided to allow any user to calculate cover from one or more selected tokens to one or more targeted tokens. (Import from the Macro compendium.)
By measuring the precise token boundary and by considering intersecting walls, Alt Token Visibility prevents tokens from being seen in situations where they partially overlap a wall. Alt Token Visibility provides additional customizations to control when partially obscured tokens can be seen.
Alt Token Visibility is particularly useful when dealing with token elevations and walls with limited heights or depth, because it focuses on approximating visibility in 3 dimensions.
For more information, see my Github.