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/*title_start*/Layers/*title_end*/
/*text_start*/In ZBrush, up to 16 layers are definable. Each layer spans the entire width, height and depth of the document, so objects on one layer can intersect with those on another layer.

When 3D objects are drawn, they interact with pixols on any layer. In contrast, brush strokes only interact with pixols on the same (active) layer. You can exploit these rules to create a variety of interesting effects.

Layers can also be moved in any of the X, Y or Z directions. While moving in the X or Y directions, they can optionally 'scroll': elements moving off one side of the canvas reappear on the opposite side. This makes it easy to create seamlessly-tileable patterns.

The most basic use for layers is keeping elements separate. You can place trees on one layer, for example, then turn off that layer and develop vegetation on another.

Another use for layers is picking information from one to influence actions on another. The \C020202Picker\C484848 palette is used to control this. For example, you can fill one layer with a picture and then use its colors to continuously change the color of brush strokes on another layer.

A third use for layers is transparency. When \C020202Render>Flatten\C484848 Layers is turned off, background objects on one layer can be seen through objects on another layer that use the \C020202Transparent\C484848 material modifier. (Tip: render the background layer before rendering the layer with the transparent object.)

Layers may be created, deleted and merged at any time. Merging is sensitive to the \C020202ZADD\C484848 and \C020202MRGB\C484848 settings in the Draw palette; it's usually best to make sure they're pressed first.
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\C909090This text is designed to be viewed with the \CccccccZBrush Help Topics Browser\C909090. To open the browser, press the \Ccc9000View Help Topics\C909090 button in the \CccccccZPlugin\C909090 palette.
