On Aug 9, 2005, at 12:09 PM, John C. Randolph wrote:
If you try moving the sliders, you'll see a couple of unexpected
results.. the first and most obvious one is that the red curve is
affected by the green value. The second is that if I set any of
the inputs to 0.5, the peak of the corresponding curve is
apparently lower than the midpoint of the output image.
I don't get the R/G interaction here, all the curves look right.
System Profile says this is a GeForce FX 5200 AGP.
I do see the low peak, though. It looks like inside CI the gradient
starts at 0.3 when the input is 0.5, though Pixie says the value on
screen is indeed 0.5. Gamma, maybe? 0.5 ^ 1.8 is pretty close to 0.3.
