Gotcha.
Okay, I still don’t fully understand EyeAdaptation and it seems to work in some strange manner. I made a video below just isolating the EyeAdaptation and trying different combinations with the nodes. Maybe the first multiply sets the base range and it increases to the second one? Yea…
Can you explain what the two multiplies and add are doing? Why isn’t the value flat (i.e. a multiply and a scalar paramater/constant)?
The cube vanishes when the brightness sets in, but reappears when looking at the horizon. When bypassing the two multiplies, it just brightens the cube. Perhaps that is the best solution since that seems to be what we’re after (I can’t recall seeing rain brighten/dim before).
I take it “match amount” just means whether the effect is on or off. The description threw me off for a while but its just a scalar parameter.
Apparently when just plugging in a flat value into the diffuse (no EyeAdaptation node) it does the same thing as bypassing the multiplies…So it looks like the multiplies are actually making the cube vanish and the EyeAdaptation node doesn’t do anything. I recall that the brightness/dimming is Auto Exposure. and can be turned off through a PostProcess volume.
What’s the purpose of the EyeAdaptation node if the Auto Exposure is what’s brightening things globally? It seems to be negating any visual cues the EyeAdaptation node in the material would show.
The aim here is: Increase daytime visibility of rain and keep eye-adaptation. Most likely drop the cubemap since it’s too dark and reflections are hard to see anyways (rain’s fast and small). I keep asking about the EyeAdaptation because I want to know how to alter it if necessary. Right now it’s stuck at whatever value the previous artist left it at.
https://www.youtube.com/watch?v=JKgXLosIs_E&feature=youtu.be