It then tries to apply four different texture compression algorithms to each of the blocks, and picks the one that gives the best result for each individual block.
(It; picks; the one that gives the best result for each individual block) (the one; gives; the best result for each individual block) (It; tries; to apply four different texture compression algorithms to each of the blocks; T:then) Context(It tries,List([0, 13))):(It; tries to apply; four different texture compression algorithms; to each of the blocks)
It tries,List([0, 13))
It the one It It
picks gives tries tries to apply
the one that gives the best result for each individual block
the best result for each individual block
to apply four different texture compression algorithms to each of the blocks T:then
four different texture compression algorithms to each of the blocks