Adjusting Mask Controls

By default, mask is set to none, but if you want to use a mask, do the following:

1.

Check the mask checkbox on the RotoPaint tab. By default, the mask control is hidden, but you can display it by clicking on the black triangle above color.

2.

Select a channel to use as a mask from the dropdown menu.

3.

If you are using the mask input and want the mask copied into the predefined mask.a channel, check inject. This way, you can use the mask input again downstream.

4.

If necessary, check invert to reverse the mask and/or fringe to only apply the effect at the edges of the mask.

5.

If you find that the overall effect of the RotoPaint node is too harsh, you can also blend some of the original input image back in by adjusting the mix slider.