I have a graph setting up base elevation before my water nodes and was having trouble lining up the elevations and it appears that clamping wasn't working, until I used a clamp node instead of the post process clamp options.
Influence is set to 100% so there's no reason (at least per the documentation on post process tack) that the clamp there shouldn't have had the same effect as the node?
if this is operating as intended, but counter to intuition, how are we supposed to know what values the post process stack will actually clamp to when its set to 10% minimum?
a 10% constant masked into a combine (one major area of 10% circled in blue) and the red annotations indicate areas where the clamp via post process stack has failed to operate according to input and/or predictably.
clamping done via the clamp node and the post process clamp on the node feeding the portal is detoggled
height with the 10% clamp in post process stack and zero % of the 10% constant mixed in.
for control the source node for the portal showing the 10% min clamping and then exact (to the eye alteast) same height values in 2D.