
I had to build my mesh partitioned into blocks due to bad allocation error (not enough memory?). After that, I merged the blocks and got one single mesh model that appartently is clean and appears to be gapless in the seams.
However, the mesh topology in the seams is faulty and that causes these ugly black strips on the occlussion map.
The merge blocks operation needs some rework in my opinion
Regards
Geobit