Reflection is Black Out by Color Reflection and low amount

[Kakashi]

Hi.

This is simple scene.
There is one sphere and one VrayDomeLight only.

I assigned material to a sphere with only color reflection.



This is render result that a sphere center is black out.



if Reflection Amount is up or Reflection Color change to near white, this result is repair.

Is this bug?

ColorReflection_RenderBlack.zip

[Yannick]

in your material, under the Options tab, reduce the cutoff threshold.
This will get rid of the the black.

[Kakashi]

Thanks to reply.

Oh,yes!

I forgot this parameter.