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PSD Files 629
Grayscale 16 bit (65,536)—
Choose to render a
grayscale image with 65,536 shades.
Alpha Channel—Tur n on to save the a lph a chan nel
with the file.
Interlaced—Turnontomakethefileinterlacedfor
faster display in Web browsers.
PSD Files
PSDisthefile-nameextensionforgraphicsfiles
native to Adobe Photoshop. This image format
supports multiple layers of images superimposed
to get the final image. Each layer can have any
number of channels (R, G, B, Mask, and so on). It
is a powerful file format because multiple layers
can contribute to a variety of special effects.
Adobe provides many different modes of
superimposing layers, including normal, darken,
lighten, difference, multiply, screen, dissolve, hard
light, hue, saturation, color, luminosity, overlay,
and s oft light.
YoucanusePSDfilesasbitmaps,viewport
backgrounds, and so on. You can’t render to a PSD
file.
3ds Max supports Photoshop 6.0 format, and
allowsyoutouseimagelayersasbitmaps,aswell
as the entire composited g raphic.
Inter face
When you open a PSD file as a bitmap, a dialog
appearsthatletsyouchoosehowtousetheimage.
Collapsed Layers displays the entire image.
Collapsed Layers—(The default.) Uses the entire
composited image.
Individual Layer—Uses a single layer of the image.
Whenyouchoosethis,thedialogshowsalistof
the layers, with a thumbnail of each, and the layer
names. Click a layer to choose it, then click OK.