Sharp edge of shadow with bump mapping

[ulfmir]

Hello everyone,

I have an issue with bump mapping. When bump map is set to 0 everything is fine, but when I increase bump to 100 in bitmap slot then the issue with sharp shadow appears. You can see it in attachments.
I have one v-ray sphere light in my scene. In bump slot there is noise map.
I tested renders with different values in shadow bias in v-ray light setting, but it doesnt help.

Can someone tell me If Chaos Group developers will find the solution for this problem in near future?
I rembember that I found information that Fstorm solved the problem some time ago.

Best regards
bump.rar (23.1 KB)

[tashko.zashev]

Hi,

The light an material behavior for this setup seems to be normal. Rough surfaces reflect the light in a different way and produces more “flat” results. You are using a very small and high intensity light source in this scene which makes the border line between the shadow and lit surface more apparent.