Rough Concrete
Create a new image, any size, but something about 300 x 300
pixels is good to get an idea of the effect. Add some noise, to
do this select the Filter menu followed by Noise, and Add Noise.
Select a noise level of 90, with Gaussian and Monochromatic
selected.
Now we need to give all that Noise some texture, select the
Filter menu again and then Stylise followed by Emboss. Select
135°, pixel height of 2 and leave the amount at 100%. Adjust
the pixel height as required, values of 2 - 4 work well. After
doing this Emboss you will have a fairly reasonable rough
concrete looking texture. The next few steps are optional and
help to create a little more random look.
From the Filter menu again select Render and then Difference
Clouds. This creates a random pattern in the texture. Then
select Filter and Fade Difference Clouds (Shift+Control+F),
usually selecting a fade value of about 30, however go with
whatever looks suitable. Because of the random nature of
Difference Clouds you will get a different result everytime.
If you want a harsher look to the concrete select the Image
menu, followed by Adjust and Auto-Levels.
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