Perspective shadow
https://www.reddit.com/r/ArtFundamentals/comments/sbgztj/perspective_shadow/
2022-01-24 08:03
-kaiz
How to determine the shadow of the object considering perspective. (Light source behind the viewer and light source behind the object)
Uncomfortable
2022-01-24 16:14
Try asking this over on /r/learnart. This subreddit is reserved for those working through the lessons on drawabox.com, as explained here.
That said, I should mention that technically perspective and shadow projection are unrelated to one another. They seem similar, because of how the mechanics of figuring out how to plot out a shadow involves the light source almost behaving like a vanishing point, but that similarity is fairly shallow and doesn't hold for too long as you continue exploring the concept.