Game Development Reference
In-Depth Information
Figure 6.84 The sea lions comp
without applied effects.
Figure 6.85 The histogram and
gradient in the Levels effect in the
Effect Controls panel.
histogram is completely fl at, which means that there are no black
(or even dark gray) pixels at all.
The key to fi xing this image is in the three little triangles at
the bottom of the histogram. These represent (from left to right)
the black point, midtone, and white point. If there are no black
pixels, we need to click and drag the black point triangle slider to
the right until it is under the darkest pixel in the image. This will
force that pixel to black, and reshuffl e the other luminance values
accordingly. Be sure to stop dragging the black point slider to the
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