Shadow Algorithms Data Miner

50 2. Hard Shadows

e main questions are how many and where to position the parallel-split

planes:

● Valient [598] recommends some manual intervention.

● Lloyd et al. [358] indicate that a logarithmic scale subdivision is ideal due to

the logarithmic perspective transform. See Figure 2.20(middle).

● While a logarithmic subdivision may be ideal, it is not appropriate be-

cause most of the resolution would be close to the near-plane; thus,

Zhang et al. [664] suggest some weighted average between the above log-

arithmic approach and an equidistant split-plane distribution. See Fig-

ure 2.20(right).

● Lauritzen et al. [335] indicate that a static determina ...