heh. z-buffers a new :) interesting, i have used such lines-cuts-chops "layouting" 20y ago for completely non-spatial context - overlapping timelines of validi

heh. z-buffers a new :) interesting, i have used such lines-cuts-chops "layouting" 20y ago for completely non-spatial context - overlapping timelines of validity of values (1-or-bi-temporal) influencing X, and then calculating the value-in-time of X from combining those time-chops