This article presents a finite-volume method to calculate view factors betw
een surfaces of control volumes. A simple approach, which does not lead to
the increase in memory requirement with increasing angular grid, is used. T
he spatial and angular resolution errors are resolved by grid refinements.
The procedure can handle straight-edged, inclined, and curved boundaries. B
lockages due to internal obstructions and boundaries can also be accommodat
ed. Five problems are examined and the exact solutions are reproduced.