During a second iteration in which the second pixel is identified, a larger number of locations may be identified. For example, two locations (e.g., the respective locations carried by entries 204-3 and 204-6 of the random sequence 202 of FIG. 2) may be identified for purposes of sampling the second pixel. The second iteration (as well as further iterations) may be referred to as a finer pass that is configured for producing rendering results based on a greater amount of information. Here, it is understood, that a third iteration (e.g., in which a third pixel is identified) and a fourth iteration (e.g., in which a fourth pixel is identified) may include identifying four locations of the third pixel and eight locations of the fourth pixel, respectively. These iterations may continue for N iterations until a halt condition, as previously described, is reached as determined by the merge process.

Second rendering results corresponding to the one or more locations (e.g., two locations) of the second pixel may be received (see block 308).

The second rendering results may be merged with second rendering results received from at least the second computer (see block 310).

It may be determined whether the merged second rendering results meet the particular condition (see block 312).

If it is determined that the merged second rendering results meet the particular condition, the computer is controlled to halt rendering operations (see block 318). Otherwise, the method may proceed to block 314.