Frames will produce interpenetrating rectangle frames. This is
different than Box Borders where the frames of adjacent rectangles
do not penetrate but either overlap or are being overlapped.
Gain
Gain is used to amplify the values output by the function. It
may be used in conjunction with the ">>" button
which displays the current minimum and maximum values output by
the function.
Bias
We may enlarge those lines by shifting the function in the negative
range and we do that by entering a negative value in the Bias
property. For instance, entering -200 in the Bias will enlarge
the space between the stones. However, because the negative values
goes well under 0, the lines are not black.
Multiplier
This property does not do what it was intended to do yet. I shall
work on it later.
>>
The >> button displays the range of values actually produced
by the function. Note that you will get better estimates if the
Material preview window is opened when you change the combiner
properties or after you have quick-rendered your object or group.
Otherwise, the samples are taken from the tiny square in the material
tree.
Example