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use this tab to create new materials, or customize existing materials.
■ Lighting. Includes a variety of lighting options, which can be selected and applied to the model. You can
also customize lighting options, if you want.
■ RPC. Contains Rich Photorealistic Content (or RPC), which you can add from various sources, including
websites. RPCs can include images of people, trees, cars and so on.
■ Effects. Includes a variety of backgrounds and environments, which can be selected and applied to the model
scene. Some existing backgrounds can be customized, or new backgrounds can be created. You can also add
backgrounds and environments from other sources, such as websites.
■ Rendering. Includes a variety of rendering styles, which can be selected and applied to the model. A render
style affects the way a scene is rendered. You can also use this tab to create new render styles, or customize
existing render styles.
■ Texture Space. Defines the way in which a texture is applied to a model item, for example, applying a
cylindrical texture space to a pipe will provide a more natural effect.
■ Rules. Applies materials to models according to user-defined criteria. This can be used, for example, to speed
up the application of materials to groups of items.
The Materials, Lighting, Effects, and Rendering tabs are divided into two panes. The left hand pane contains the
archives and the right hand pane contains the palette, which defines what materials, lighting, effects and render
styles are used in the scene. Archives are shown in a tree structure and are defined in the LightWorks Archive
(.lwa) format.
Model Appearance
While Presenter can be used for photo-realistic renderings, it can also be used for OpenGL interactive rendering.
Once you've set up the scene with Presenter, you can view the materials and lights in Autodesk Navisworks in
real time.
For more information, see “Control Model Appearance” on page 167.
To toggle the Presenter window
■ Click Presenter
on the Workspace toolbar.
Menu: Tools ➤ Presenter
Use the Presenter Archives
There are three pre-defined archives that are installed with Presenter:
■ The Recommended archives contain materials, lighting, effects and rendering styles that are recommended
for most users. These include materials, lights and effects that can be seen during interactive navigation in
Autodesk Navisworks and can be fully rendered with OpenGL. Of course, they will look better when rendered
photorealistically.
■ Additional materials, light studios, effects and render styles are available in the Standard archives. These
include materials that cannot be fully reproduced using OpenGL and therefore will not be seen properly in
interactive mode, or until a full photorealistic render is done.
■ Any materials, lights, effects and render styles from any archive can be used as a template starter for your
own definitions, but the Templates archives contains instances of each type of material, light, effect and
render style, giving you quicker access.
TIP Additional .lwa archives can be downloaded from http://www.lightworks-user.com/, and added to the Materials,
Lighting, Effects, and Rendering tabs.
300 | Chapter 14 Create Photorealistic Visualizations