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Dec 22, 2012

Similarities in Nature

Similarities in Nature

Here’s something that I actually stumbled upon by accident: I was attempting to take a photo of lightning and create
a brush from it, so I could have lightning when I needed it. However, in my pursuit of this, I had a “Eureka!” moment.
When you look at the lightning image below, what does the shape of the lightning resemble? Read on to find out.

STEP ONE:

Here, we’ll start with this simple stock
image of a lightning strike. It’s always
good to have a folder of images that
contain generic elements like this. You
just never know what you might be
able to use them for.



STEP TWO:

To create the brush, we are going
to start with the image’s channels.
Open the Channels panel by going to
Window>Channels. Toggle through the
individual channels and locate the channel
that defines the lightning pretty well,
while the background is as dark as possible.
In this case, it looks like it will be
the Red channel. So, make a duplicate
of the Red channel by dragging it down
onto the Create New Channel icon.

STEP THREE:

With the Red copy channel active, press
Command-L (PC: Ctrl-L) to open the
Levels dialog. Grab the black (shadows)
eyedropper below the Options button,
and click on the light gray area next to
the lightning bolt. This will force everything
that is that shade of gray or darker
to go black. Then, if necessary, move the
sliders to tighten up the contrast a bit
more (I ended up dragging the center
gray Input Levels midtones slider to the
right a little to 0.75), and click OK.

STEP FOUR:

As we saw before when defining a
brush, Photoshop will disregard the
white area, only defining the black
areas and any little hints of gray there
might be. So, press Command-I (PC:
Ctrl-I) to Invert the image, so the sky
is white and the lightning is black.
Now, go under the Edit menu and
choose Define Brush Preset. Then
just give the brush a name and there
you have a lightning brush.

STEP FIVE:

At this point, we have achieved what
we first set out to do, which was to
create a lightning brush. But, if we
think a little outside the box, we can
use it for more than just lightning. Click
on the brush thumbnail in the Options
Bar to open the Brush Picker, and select
your new lightning brush. Then, click
on the icon to the right of the brush
thumbnail to open up the Brush panel.
Click on Brush Tip Shape on the left
and set the Spacing to 60%. Notice,
also, that the brush size is set to what
it was defined as. But, we’ll use a handy
keyboard shortcut to change the size
later while painting.

STEP SIX:

Next, click on Shape Dynamics on the
left to turn it on. Set the Size Jitter to
100% and make sure the Control pop-up
menu is set to Off. Then set the Angle
Jitter to 100%, as well, and again leave
the Control menu set to Off. Finally turn
on the Flip X Jitter and Flip Y Jitter checkboxes
at the bottom to add variation to
the brush effect.

STEP SEVEN:

Now, open the stone texture file
I supplied on the book’s download site
(mentioned in the book’s introduction),
or open any texture file you want to
try this effect on. Remember when
I said that if you look closely at the
shape of the lightning, you can see
more than the obvious? I look at it
and see a cracked effect. So, click on
the Create a New Layer icon at the
bottom of the Layers panel to create
a new blank layer to paint on.

STEP EIGHT:

Before we paint, click on the Add a
Layer Style icon at the bottom of the
Layers panel and choose Bevel and
Emboss from the pop-up menu. Using
the settings you see here will give the
cracks a little edge depth, making them
a little more realistic. Now, press D to set
your Foreground color to black and paint
on the blank layer with the new brush.
You can see how it gives you the effect
of cracks in the stone just by painting a
few strokes.

STEP NINE:

To finish off the image here, add some
text, using a heavy font (here, I used
Swiss721BT), and change the text layer’s
blend mode to Overlay, so you can see
some of the cracks through it. Then,
Command-click (PC: Ctrl-click) on the
text layer’s thumbnail to select the text,
and press Command-Shift-I (PC: Ctrl-
Shift-I) to Inverse your selection. Now,
click on your cracks layer and switch back
to the Brush tool. Use the Left Bracket
Key ([) to make your brush size smaller,
and paint back and forth around and
over the text to make it look like it’s
so heavy it crumbled the stone when
it dropped onto it. Press Command-D
(PC: Ctrl-D) to Deselect.



Final Image



By changing your Foreground color to white and adding a light blue Outer Glow layer style with
the Blend Mode set to Hard Light, you can actually get a really cool lightning effect, essentially
on a brush. This can give you some electrifying results.








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