Shadow Bias

[Macker]

What's the point of it? I've never used it, and I've seen plenty of forum questions where someone has set it incorrectly and got strange results. Surely it was put there for a reason?

[Art48]

I guess it's about very thin geometry or off-scale scenes (think a 0.5mm long building)?

[Deflaminis]

Also needed if the xforms are crazily scaled. Had a nightmare project once where the scene was scaled something crazy like 20000% and the director wouldn't let me reset the xforms because it changed the look a tiny bit. It was the only way to make the shadows not be projecting from the wrong spot.