Different results of normal map between CPU and GPU

[hill_lam]

When rendering in VRay GPU or Vantage, I had to uncheck Flip red and Flip green to get the same correct results as VRay CPU.
Otherwise, the shadow goes in the opposite direction.

[vladimir_krastev]

Hi, thanks for posting.
I was not able to reproduce your issue in a simple scene. We will need to know how you have built your material.
Could you send your scene for review? You could do that here or through the support contact form. If you go to the contact form please add a link to this thread in your e-mail.