I have done multiple exposures of a scene, and I want to mask in certain areas of each frame over a background frame. I have loaded the background frame into Affinity Photo, and I have one of the other exposures as another layer above the background.
I have simply tried to right click on the top layer, and select "Mask to below", hoping that I can selectively mask certain portions onto the background layer. However, this simply does not work for me. The layer mask is created just fine, but when i select the Brush and begin masking in the regular way (white/black), there is simply no change to the image. I have checked all the opacities and settings of the layers and brushes, and it does not work. I have made sure that each layer is a pixel layer.
If I simply select the top layer and select "Mask layer", the sure I can mask down to the background, but I am not able to bring the top layer back! It is therefore destructive, and it is impossible to do a decent mask job unless I can both mask down and bring back, in an alternating manner.
So, what am I doing wrong? I am using AP 1.6.7