User Guide

Table Of Contents
Impasto 187
An example of the Replace composite depth method.
The Ignore method prevents impasto brush strokes from interacting with image
data on different layers. With the Ignore method active, the display of depth for
the layer is turned off, even when the View Depth icon on the document window is
active. This makes it possible to disable display of depth for individual layers.
If the composite depth method is set to Ignore and you paint with an Impasto
brush variant on a layer, the method changes back to Add.
Ignore is the default composite depth method.
You can set a different composite depth method for every layer in a document. Refer to
“Blending Layers by Using Composite Methods” on page 71 for more information.
Adjusting Surface Lighting
Lighting can be a big part of the overall depth effect that Impasto creates. Just as the
right lighting can bring out the deep-textured look of a stroke, the wrong lighting can
wash out the effect altogether. The Surface Lighting controls let you set up the
position and attributes of light sources that shine on your Impasto brush strokes.
These controls are global — they affect all the Impasto brush strokes on all layers.
Setting Light Position
The lighting sphere shows all of the possible surface angles and how the lights
illuminate them. The light indicators on the sphere show the current positions of all of
the light sources.