V-ray dome light issues in Maya

#1

Dear All,
I’m using V-ray in Maya 2016. I created a dome light to light and a hdri image my scene and I need the texture with it as well. I get the texture - only on the upper half of the scene. The lower half is full grey.
I seek advice - how to get this sorted out? it looks a bit odd this way, I need to see the whole texure.

#2

UPDATE:
It has been solved, I had to turn on spherical dome.