pub const DEPTH_ORDER_SPAN: f32 = 1e-4;Expand description
Total normalized-depth span reserved for scene-order biasing.
Fragments whose true depth differs by less than this span may be reordered
by scene insertion order (later items on top); anything farther apart keeps
true depth ordering. The span is split evenly across all items of a frame
(epsilon = DEPTH_ORDER_SPAN / item_count) so the total offset does not
grow with scene size.