Evaluate the "Highest-Layer" Algorithm

[dawsonc623]

The way layering is implemented in ren2 keeps track of the highest layer and scales accordingly. So, if the layers 0, 1, 2 and 1000 are used, then 0, 1, and 2 are pushed to the extremes of the positive z axis (0.9) while 1000 is pushed to the extreme of the negative z axis (-0.9). The entire middle is left unoccupied. With a big enough discrepancy, it is theoretically possible that the precision of floating point numbers could create layering issues (i.e. the low end of the layers all getting pushed to 0.999999... until the computer had no more space to store the minute differences between the layers).

Is this issue practical or problematic enough to warrant a more bulletproof algorithm?

[dawsonc623]

It would be possible to store all of the used layers in an array in order and then calculate the z of models on those layers based on each layer's index in the array and the total length of the array. This would solve the problem presented here.