Bump Shadows working?

[flat]

in VRayMaya 2.30

I am checking behavior of the Bump Shadows parameter of VRayMtl.

Is this parameter working?



bumpshadows.zip (maya 2013 scene)

[flat]

Nobody uses?

[bigbossfr]

Can you enable the GI to see in the shadows please ?

[flat]

Maybe, GI is unrelated to this feature.
difference is not in ON/OFF.