How to Use Affinity Photo Blending Ranges

How to Use Affinity Photo Blending Ranges


hello I’m Robin Whalley
welcome to lenscraft today I’m returning to affinity photo to look more
closely at blending ranges I did cover them briefly in an earlier video when I
also looked at the blended feature in Photoshop what you can see at the moment
is a tone strip that I’ve created and it’s going to help to explain blending
ranges it runs from black on the Left to white on the right and has four black
and white rectangles in affinity photo the image tones have a value of between
0% and 100% the percentage is the amount of white that appears in that tone when
you have a tone that’s pure black it has a value of zero percent because there’s
no white and the opposite end of the scale white has a tonal value of a
hundred percent in the middle of the strip there’s an equal level of black
and white so the tone is 50% I’ll now use a copy of this tone strip to
demonstrate the blending range feature in affinity photo if you want to try
this with your own image I’ll put a copy of this strip on my website and a link
to it in the video information below here you can see one of my landscape
photos with the tone strip appearing as a second layer in the image I’ll select
the tone strip layer and then click the gear icon in the layers studio panel
this opens the blending options dialog the first thing to notice is that we
have two sets of similar controls the grid on the Left controls the blending
of the tone strip layer whilst the second grid controls the layers below it
you can think of the grid as being a graph the horizontal axis represent the
tonal values of pixels in the layer this goes from 0 percent are black on the
left to 100% or white on the right the vertical axis represents the opacity of
the layer from 0% at the bottom to 100% opacity at the top currently you can see
a line running along the top of the grid with a point at either end the left
point tells us that the black pixels on the layer have an opacity of
100% the other point on the right shows the white tones also have an opacity of
100% in fact the entire line runs along the top of the grid this tells us that
every tongue from black through to white has an opacity of 100% which is why we
can see the entire strip no much drag the black point down and set the opacity
to zero notice how all the black tones in the layer become transparent but you
can still see the whites because the line runs diagonal the opacity in the
tones gradually increases as the tones get lighter if you look at the mid-tone
gray the opacity is 50% let’s reset the adjustments and this time move to the
white point the white tones that no transparent but
the black tones are visible let’s add a point to the mid tone as set its opacity
to 0% as you can see the middle of the strip
now becomes transparent but the whites and blacks are still fully visible
what’s happening is we’re controlling the areas of the layer that’s a visible
based on the tones in that layer I also want to mention this linear option at
the moment it’s selected and the line between the points is straight watch
what happens to the line when I unselect it and keep watching the center of the
strip as well the line now becomes curved rather than straight this is
creating a more gradual transition in the blending I’ll reset the control
again and we can look at the other grid the other grid works much like the first
grid we have the tonal range from black on the left to white on the right the
vertical axis also controls the opacity but the results with this grid are
slightly different when I move the black point in the other grid it made the dark
parts of the tone strip transparent in this grid
it makes the strip partly transparent but across the entire time strip the
opacity of the strip is being determined by the tones in the image below it where
you see dark tones in the underlying image the strip becomes transparent I’ll
reverse the settings now so the areas of white in the image made the strip
transparent you may be able to see it better if I move the strip around one final point to mention is that each
layer in the image has a separate set of blending range controls when I click on
the background layer I can change its transparency or its opacity using the
source layer ranges but notice the other controls have no
effect because there’s nothing below the background layer to control the blending
hopefully this has given you a helpful introduction into affinity photo
blending ranges in a future video I’ll demonstrate how you might use this to
simulate luminosity masking I’m Robin Whalley
you’ve been watching Lenscraft I’ll see you next week for another video

8 thoughts on “How to Use Affinity Photo Blending Ranges

  1. Great Introduction to Luminosity Masking. Explained it in a way I could better understand its features. Will look forward to you next video(s) of Luminosity Masking. Could you also give us some examples of how one would use the Source and Underlying Blend Ranges in images, other than Luminosity Masking. Would that be in composites, or parts of a photo? Anyways, your tutorial has started to make me think.

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