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Chapter 2: Controlling and Configuring the Viewports

FIGURE 2.15
Lights and shadows are updated in real time when the light is moved about the scene.

Locating mesh problems with xView
When modeling or importing mesh objects, a number of problems with the geometry could cause render-
ing artifacts such as flipped normals, overlapping faces, and open edges. Locating these problem areas can
be tricky, requiring multiple renders to get it right. Within the viewports is a powerful analysis feature for
locating a number of specific problem areas. This feature is called xView, and you can access it from the
Views menu or from the viewport shading label.
The xView analysis tool can locate and highlight the following anomalies:
l Face Orientation: Highlights the back side of the faces in the current selection to quickly identify
faces with flipped normals.
l Overlapping Faces: Highlights any faces that are stacked on top of each other, which can cause
render problems.
l Open Edges: Identifies unwanted holes in the geometry.
l Multiple Edges: Checks for edges that are stacked on each other. Each edge should be connected
to only two faces.
l Isolated Vertices: Highlights vertices that aren’t connected to anything. These vertices just take
up space.

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