You can fade the results of the effect via the fade command found in the layer menu and add in a blending mode as well such as applying the effect as a darken or difference or pin light etc You can record the settings and play it back via the macro panel Select something in the image and copy and paste then apply the effect to that artwork instead of the background.
This tool can be used to warp but it is also designed for corrections of lens, to add subtle tweaks to the image to correct errors Use with layers You can use it with channels so you can apply different values for the red channel as well as the green etc Apply it multiple times with the same setting via the repeat at the top of the menu. It can be used multiple times and combined in 1000s of ways with the other filters that come with the powerful graphics application, Affinity Photo. You can also interactively change the origin point. You can also apply larger values to really warp the image in both directions, you can you can set the value positive or negative and the default is 0. Go to the effect and set distortion and click the apply The effect is great for correcting lines by applying subtle settings. You can find the live version in the layer menu and live layer section Basic use The lens distortion filter for Affinity Photo can be found in the distort sub-menu (which can be found in the filter menu).
How To Use Lens Distortion Filter In Affinity Photo Tutorial | Graphicxtras Where How To Use Lens Distortion Filter In Affinity Photo Tutorial | Graphicxtras