compositing bug when using OSPRay on multiple MPI tasks
When ParaView does compositing of OSPRay-based volume renderings, I see artifacts coming from process 0 compositing_issue.tar.gz
I have attached a complete tar file with example images made on 2, 4 and 8 tasks. I uses ospray 1.4.0 and embree 2.17.0 with ParaView master.
the test is embedded in your great testing infrastructure (Thanks!) and can be run as:
mpiexec -n 2 ./bin/pvbatch test_ospray_compositing.2.py --view-size 256,256 -f 1 -o ospray2 --ospray mpiexec -n 4 ./bin/pvbatch test_ospray_compositing.2.py --view-size 256,256 -f 1 -o ospray4 --ospray
the resulting images ospray?.tiff show the process 0 noisy frames.