Hi,
I did not get an answer from anybody so deep searching through the forum posts and reading technical document led me to the following results. I post a short description of my results maybe it will be useful for somebody. A big influence on graphic memory usage causes **VxgiMapSize **and VxgiStackLevels. To have a less memory consumption I use **VxgiMapSize = 64 **and VxgiStackLevels = 3. Also if to skip some objects from voxelization ( i skipped small objects like accessories) it gives benefits in memory usage