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The Wireframe attributes can be used to generate a wireframe on polygon mesh objects. The edge detection feature of a display can be used to render unshaded wireframes instead; see [Display Edge Detection ], page 74 Attributes for details.
Output Wireframe
When this attribute is on, curve primitives that follow the polygon edges are output along with the mesh. These new primitives are shaded like the polygon mesh. This attribute is off by default.
Raster Space Wireframe
This attribute determines how the "Wireframe Width" attribute is interpreted. When "Raster Space Wireframe" is on, the width is expressed in pixels. When it is off, the width is expressed in object space. In other words, turning on this attribute means that the wireframe width will remain constant even when the object or the camera is moving. This attribute is on by default.
Wireframe Width
This attribute defines the width or the wireframe. Its value is interpreted in pixels or in object space units depending on what the "Raster Space Wireframe" attribute is set to. This attribute is set to ‘1.0’ by default.