Hack to fix pixelOps in the DFB
Hack to fix pixelOps in the DFB

TODO: We need to better handle the MasterTileMessages so we can just
send SoA tile data instead of AoS like we have to convert to now, and
store in the TileData::color member

ospray/OSPRay,ospray/OSPRay,wilsonCernWq/ospray,ospray/OSPRay,ospray/OSPRay,wilsonCernWq/ospray,wilsonCernWq/ospray