Shadow edge is not smooth

[MikkoK]

Hi.

Do you know why this could happen? Looks like there is not smoothing on that part where the light turns to shadow.
My brain is not working this morning, but I hope you understand what I mean by looking the attached picture. Also the max file is attached.

edit: This happens in both gpu and cpu rendering.

Thanks
Mikko

[garipodelu]

It seems it's a problem with your vray light shadow bias. Try raising it. you have it currently at 0.002mm if I'm correct. With a higher value like 0.1mm the problem goes away.

[MikkoK]

Okay, thank you. I looked in to it for me it was 0,02 mm. Anyways, it gives me the same result, but and apparently if I start my scene with mm scale, the bias is 0,02 by default and I need to lift it to 0,1 mm my self and it works perfectly. Quite weird that the amount is so small by default.

Thank you anyway, next time I know how to avoid that. Thanks!

[garipodelu]

It's a known issue. We for example use meters for system units and all the vray lights have a bias of 0.2m which is huge. It's something to keep in mind in the future when setting up a scene.

[MikkoK]

Good to know. Thanks!