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Solid Noise is a great texture maker. Note that this noise is
always gray, even if you applied it to a very colorful image (it
doesn't matter what the original image looks like -- this filter
completely overwrites any existing background in the layer it is
applied to). This is also a good tool to create displacement maps for
the Warp plug-in or for the
Bump Map plug-in. With the
"turbulence" setting active, the results look quite a bit like real
clouds.
13.3.2. Activating the filter
This filter is found in the image window menu under
→ → → .
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Random Seed
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Random Seed controls random behaviour of the
filter. If the same random seed in the same situation is used, the
filter produces exactly the same results. A different random seed
produces different results. Random seed can be entered manually or
generated randomly by pressing New Seed
button.
When the Randomize option is checked, random
seed cannot be entered manually, but is randomly generated each
time the filter is run. If it is not checked, the filter remembers
the last random seed used.
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Turbulent
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If you check this, you'll get very interesting effects,
often something that looks much like oil on water, or
clouds of smoke, or living tissue, or a Rorschach blot.
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Detail
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This controls the amount of detail in the noise
texture. Higher values give a higher level of detail, and
the noise seems to be made of spray or small particles,
which makes it feel hard. A low value makes it more soft
and cloudy.
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Tileable
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If you check Tileable, you'll get a noise which can be
used as tiles. For example, you can use it as a background
in an HTML page, and the tile edges will be joined
seamlessly.
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X and Y Size
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These control the size and proportion of the noise shapes
in X (horizontal) and Y (vertical) directions (range 0.1
to 16.0).
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