Oh, sorry about that! This is D3 with shadow mapping:

https://i.imgur.com/TvnFuDG.jpeg

You can only notice it is not stencil when you get up close:

https://i.imgur.com/WtWojG2.jpeg

https://i.imgur.com/4dniMOT.jpeg

In Carmack's experimental renderer, peter panning was quite high:

https://i.imgur.com/u2ZZJTR.jpeg

This is my version with tweaks and poisson sampling:

https://i.imgur.com/nPI6H5a.jpeg