Game Development Reference
In-Depth Information
Figure 6.97 With the Cooling
Filter (80) selected, the image is
brought back into balance as the
warm tones are neutralized by the
cool tones of the fi lter.
Remember that there are also other colors of fi lters available.
Typically, these photo fi lters are used to give an emotional tone to
an image. If you wanted to create a formal, professional tone, you
might use a cooling fi lter. If you were taking photos of a wedding
or some other sentimental occasion, you might try shooting with
a warm fi lter.
The PS Arbitrary Map Effect
The PS Arbitrary Map effect is essentially useless, although it is
a really interesting effect. An outdated effect, it is mostly retained
only to provide compatibility with older After Effects projects. It's
somewhat like the Curves effect, but the only way to get it to work
is to click the Options button at the top of the effect in the Effect
Controls panel. This action will open the Open dialog box, at
which point you will need to navigate to an AMP (arbitrary map)
fi le. This is a fi le created by the Curves effect (in After Effects or
in Photoshop), and saved from the Curves effect while the pencil
tool is selected. For more information on how to create these fi les,
refer back to the section on the Curves effect discussed earlier in
this chapter. Note that this effect can't even use the ACV fi les from
the default style of Curves.
Once these AMP fi les are imported, that exact luminance
adjustment curve will be applied to the current layer. The Phase
property allows you to shift the curve through the layer. While it
is a fascinating intellectual curiosity, the PS Arbitrary Map effect
is better fodder for nerdy museums and history topics than for
practical application in the modern age.
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