Pixplant have been Updated ( 3.0 > 5.0 , no version 4 ) and now also does PBR Materials.    For those with Version 3 already there is an upgrade option which cost $23 for the Freelancer Version ( available for 1 Person Businesses. )  FreeLancer otherwise is $39.   https://www.pixplant.com/purchase.php?version=5.0.43&pid=10&plat=win&type=eval   Support+ Tutorials   https://www.pixplant.com/support.php   Free Trial here too: