[3]
The zonal method for calculating light intensities in the presence of a participating medium[J] . Holly E. Rushmeier,Kenneth E. Torrance.ACM SIGGRAPH Computer Graphics . 1987 (4)
[3]
The zonal method for calculating light intensities in the presence of a participating medium[J] . Holly E. Rushmeier,Kenneth E. Torrance.ACM SIGGRAPH Computer Graphics . 1987 (4)