The ledge
Lower creature
Size is an approximation of height, rounded to nearest 5. Adjust below if the creature is unusually tall or squat.
Higher creature
solid: clear sightline
dashed: blocked sightline
zone visible only from some stances
Lower creature (seen from above)
Higher creature (seen from below)
The five sightlines
Lower ↔ Higher
GM Adjudication
GMs have significant discretion when determining cover. This tool is meant to inform that call and aid in adjudicating it, not to replace it. The cover levels shown are suggestions as a guideline, not a hard rule.
The math
Live calculation