Fixed smart volume mapper crashes because of gradient opacity

Change-Id: Iea8c3f44371b0d62cc87063df138014c88c57c70
Fixed smart volume mapper level test

Change-Id: I0e6725b4522b3b82d6d0850082b350eef2c65aea
Merge topic 'fix_smartvolume_mapper_crashes' into master

7c3dc82c Fixed smart volume mapper level test
d296e253 Fixed smart volume mapper crashes because of gradient opacity