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Apply Image help


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Affinity Photo for iPad

 

I was experimenting with the Apply Image filter last night on AP for iPad and I couldn’t seem to understand the correct workflow necessary to get it to work. How do you select the other layer as the source? I selected “Current Layer” then changed my selection to the grey scale layer which I wanted as the source, enabled equations but nothing happened? At this stage I would expect to see a greyscale image since all the equations are set to D=S by default?

 

Never really used the “Current Layer” button on desktop either as I’ve always used the drag method. Can’t find any information on it?

 

Kind Regards - Trev

AP Windows, Mac, iOS --- AD Windows and Mac, iOS

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As I understand it, if you select 'current layer': S is what you see before you start Apply Image, D is what you see after Apply Image has done its calculations. The default for all channels is D = S, so when you start Apply Image what you see doesn't change until you have changed an equation.

 

An equation calculates a number, from 0 to 1. Try setting a D channel = 0.5.

 

AP's help says that 'current layer' blends a layer with itself. I think it would be better to say that it calculates a new image (D) from what you see before you start Apply Image (S). And therefore Blend mode seems to have no effect.

 

There seems to be a bug. After you have changed an equation, you might need to disable, then enable the Equations button to see the change.

Stan

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Thanks Stanley - understood, so to your knowledge the ability to use a second layer as your source (by dragging it) doesn't exist on iPad (yet) as demonstrated in this video at 0:57? I would have to workaround by exporting the layer to a file and use the 'Image' method?

 

 

AP Windows, Mac, iOS --- AD Windows and Mac, iOS

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