Question Shadows in passthrough?

[Pharanesch]

I have set up passthrough and have been using it for some time. But I just can't help notice the lack of shadows being cast on the floor. Are there any way to make some kind of transparent floor that can still have shadows cast on them?

I tried making a floor with the passthrough color, but the shadow ends up being about the same color as the floor, so that doesn't really work.