A very large image material and brush to create
the appearance of vitiligo on a character and the brush I used to
make it.
Vitiligo is a condition in which
someone loses skin pigment. The skin will become lighter as it
progresses, creating spots of lighter skin or even pure
whiteness/paleness. It can happen to all skin types, though it is
most noticeable with people of darker skin tones.
I personally have Vitiligo and
referenced myself to make these. I have
characters that have Vitiligo (or at least skin conditions that would
behave similarly) that I intend to make comics about or at least draw
frequently, so I made this to make it easier.
How to Use
No Tone/White Space
Create a white airbrush of the area you
would want the pattern on. Keep this on its own layer or else it may
not work well. Mask the vitiligo image material over the airbrush
layer.
You don't have to use the airbrush
tool—the effect has to be with soft gradiation edges and very
light. I personally set it at 50% opacity to keep it from being too
strong, but you're free to set this opacity to suit your needs. The
darker this airbrush layer is, the darker the vitiligo spots will be,
so I recommend not having it any darker than you would intend the
shadows to be or else it may look out of place
Toned/Gray Skin
Keep the opacity of the effect and the
opacity of the skin tone the same—if the tone used for a character
is at 25% darkness, the effect must also be at 25% opacity. Since I
intend to use tone on every character, no matter the race to allow
pure white things to stand out like eyes and teeth, This is the
approach I personally use the most.
* Please note that the vitiligo
effect will not work as vitiligo if the skin tone and vitiligo
overlap! Select the area in which the vitiligo effect is on (the
best way to do this is layer>selection from layer>create
selection over the masking layer) and clear the selection on the skin
tone layer.
The actual brush can be used to create the shape of the vitiligo's masking. It preserves consistancy for the pattern, but it can also be used for other things like creating calico fur patterns:
For colored images:
On the vitiligo image material, g to Edit and click “Convert Brightness to Opacity”--the lighter the spots, the more transparent they will be.
After doing this, create two more
layers; one above the Vitiligo layer and one below.
Fill the layer with the normal skin
tone and the bottom with the color of the same skin without any
pigment—depending on the race or species of the character (if you
have, for example, an alien character with green skin). For many
humans, it will be a very light and unsaturated pinkish-orange, but
that is up to you. Feel free to use a color-picker on a photograph if
you want a more accurate/realistic color.
Merge the three layers from the top to
bottom—it will not work well in any other order.
After merging, use masking and clipping
to apply it to your art.
This method can work with or without
erasing the skin color layer below as long as the vitiligo image
material is at full opacity.
*There's no obligation or right/wrong
way to use this. A person's art style may effect the technique/method
and thus create different results. This doesn't have to be used as
vitiligo—it can be for whatever you want, but I personally made it
to be that, so I personally intend to use it as such.
Vitiligo Set
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