if you want to experiment to find the settings you like, you have to go back through the menus after every adjustment
Why? The idea is very simple: lighting is changing in real time while you're adjusting all those sliders and the effect of adjusting is visible immidiately. When you press "Apply" button it saves current values to "Custom" lighting type. May be we should rename "Apply" to "Save & close" but I really don't see any problem in this behavior.
Save my custom lighting settings
power users can do this right now with simple text editor
open SVPMgr.config in "Program FIles\SVP" and search for "BorderlightType" - it's 52th line in 3.1.3
following 4 lines are predefined "Type 1" - "Type 4" in the form
where A,B,C,D are the numbers from "Custom lighting" window
(D is "Light source size" and it's divided by 100)
example: adding following line to the file
-10:100:150:2;My custom lighting type
will add additional menu item named "My custom lighting type" with
"light sources count" = 10
"averaging depth" = 100
"flare length" = 150
"light source size" = 200
Higher quality lighting effect
I totally agree we should do something with color banding (you mean it by "large rectangular regions", right?)
but it'd better you make some screenshots with "large rectangular regions"
using any reasonable interpolation algorithm rather than the current nearest neighbor approach
it's cubic in horizontal direction and linear in vertical
I assume this project is open source
mmm, well, no, it's not