Photo V2: Can't rasterize multiple layers to mask?

[Alex_M]

I was stoked to learn that in V2 of Affinity Photo we can rasterize multiple layers. However, I was unpleasantly surprised that this doesn't work if I want to convert multiple layers to masks and I have to go through all layers one by one manually. Is this a bug?

[paolo.limoncelli]

Hi Alex,

this is the way I do it... Not sure it is the only way nor the faster... Anyway it is pretty quick

I create my vector shape, group it and place above my graphics

 

Then select Mask To Below

 

And here we go...

 

If I need to make this a Raster Mask just hit "Rasterise"

 

 

This step could be done also before the "Mask to Below"

Obviously it works in both Photo and Designer, and with pixel layers too

 

 

In Photo you have a further option...

If your scenario is the following, so two (or more) stacked raster layers

 

Group them, Rasterise and then hit Filters > Colours > Erase White Paper

 

Now you can perform Mask to Below

 

This process also explains how Affinity deals with Raster Masks: you do need to have alpha (100% transparent) pixels in your layer to make it a clipping mask.

The white to alpha step allows it.

Hope this helps!

Paolo