2011

Acceleration
Hardware Acceleration Select this check box to utilize any available OpenGL hardware acceleration on your
video card.
If your video card drivers do not function well with Autodesk Navisworks, clear this check box.
NOTE If your video card does not support OpenGL hardware acceleration, this check box is not available.
Overlay Buffer Select the hardware overlay option from the drop-down list.
Occlusion Culling Select this check box to enable occlusion culling. This means that Autodesk Navisworks only
draws visible objects and ignores any objects located behind other objects.
Selecting this check box improves the display performance when much of the model is not visible. For example,
when you’re walking down the corridor of a building.
IMPORTANT Occlusion culling can only be used on a machine with an OpenGL 1.5 compliant graphics card.
Transparency
Interactive Transparency Select this check box to render transparent items dynamically during interactive
navigation.
By default, this check box is clear, therefore, transparent items are only drawn when interaction has stopped.
NOTE If your video card does not support hardware accelerated OpenGL, selecting this check box can affect display
performance.
Detail
Guarantee Frame Rate Indicates whether the Autodesk Navisworks engine maintains the frame rate specified
on the
Speed tab of the File Options dialog box.
By default, this check box is selected, and the target rate is maintained while moving. When movement stops
the complete model is rendered.
If this check box is clear, the complete model is always rendered during navigation, no matter how long it takes.
Fill In Detail Indicates whether Autodesk Navisworks fills in any discarded detail when navigation has stopped.
Batch Fill Select this check box to render detail in chunks (batches) rather than gradually.
NOTE This check box is clear by default, as gradual rendering gives better results for most video cards.
Primitives
Point Size Enter a number from 1 through 9 to set the size (in pixels) of points drawn in the Scene View.
Line Size Enter a number from 1 through 9 to set the width (in pixels) of lines drawn in the Scene View.
Snap Size Enter a number from 1 through 9 to set the size (in pixels) of snap points drawn in the Scene View.
Enable Parametric Primitives Indicates whether Autodesk Navisworks dynamically renders parametric primitives
during interactive navigation.
Selecting this check box means the level of detail changes during navigation depending on the distance from
the camera.
Clear this check box to use the default representations of primitives; the level of detail stays the same during
navigation.
SpaceBall Page
Use the options on this page to customize the SpaceBall behavior.
These options are offered in addition to the adjustments that can be made using the Control Panel for the device
which is supplied by the SpaceBall manufacturer with the installation.
Scale Translation By Enter the value that is used to adjust the speed of translation.
Scale Rotation By Enter the value that is used to adjust the speed of rotation.
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