- When the black marker is set to the leftmost position, the effect is 100% but the readout displays 0%.
- I was expecting the 100% position of the black slider to be at the rightmost position.
Moderator: jsachs
I agree with those statements, but it is not how the specific curve is implemented in the Brightness curve tool ....jsachs wrote: ↑November 21st, 2021, 6:21 pm The black slider controls how much of the transformation is applied where the mask is black. The white slider control how much of the transformation is applied where the mask is white. In their normal positions at 0% and 100%, the transformation is applied full strength where the mask is white and 0% where the mask is black. If you set them both at 100%, it is like not having a mask at all. See Controls.pdf under the Amount control for a description and examples.
You will find below a suggested interface for the brightness curve controls.jsachs wrote: ↑November 23rd, 2021, 7:45 am I rewrote the description in the help file for the next release to hopefully clarify how this works.
One thing I think you are missing -- there is only one Amount control, not one for White and one for Black. Having two Amount controls would mean creating two separate masks. Thus reversing the sliders for the Black curve would also affect the White curve. The simple way to think of this is that when you select the Black curve, the mask is treated as inverted so it applies to the unselected parts of the image.
Based on observations, here is how I understand the slider with masking:jsachs wrote: ↑November 21st, 2021, 6:21 pm The black slider controls how much of the transformation is applied where the mask is black. The white slider control how much of the transformation is applied where the mask is white. In their normal positions at 0% and 100%, the transformation is applied full strength where the mask is white and 0% where the mask is black. If you set them both at 100%, it is like not having a mask at all. See Controls.pdf under the Amount control for a description and examples.