What happens to the stored stencil value at one of the three outcomes of a
fragment (§67).
"increment" and "decrement"saturate at 0 and 255; the -wrap forms
wrap modulo 256. Saturating is the right default for nested clipping — a
depth counter that wrapped past 255 would silently re-enter the region it was
supposed to have left — and the wrapping forms are named because a
bit-plane-parity mask wants them.
What happens to the stored stencil value at one of the three outcomes of a fragment (§67).
"increment"and"decrement"saturate at 0 and 255; the-wrapforms wrap modulo 256. Saturating is the right default for nested clipping — a depth counter that wrapped past 255 would silently re-enter the region it was supposed to have left — and the wrapping forms are named because a bit-plane-parity mask wants them.