2011

The Templates archive contains five main types of rendering style, which can be used to define your own
rendering styles:
■ Photorealistic (Raytrace). This archive contains photorealistic rendering styles, including High Quality, Low
Quality and Medium Quality like the Recommended archive. These rendering styles are the fastest and use
the least memory where large parts of the model are obscured from any particular viewpoint. For example,
when inside a room within a building, the walls of the room will obscure the rest of the building from view.
■ Photorealistic (Scanline). This archive contains photorealistic rendering styles, including High Quality, Low
Quality and Medium Quality like the Recommended archive. These rendering styles are the fastest and use
the least memory where most of the model is visible from any particular viewpoint. For example, when
rendering an overview of a plant and process model, the majority of the model can be seen as there are fewer
walls, or similar, to obscure your view.
■ Simple Shaded. This template is a simple, shaded rendering style, where advanced features, such as textures
and transparency, are not required.
■ Sketch. This archive contains many basic sketch rendering styles.
NOTE Sketch rendering styles require multiple stages to render a scene. Therefore, these styles can often take a
considerable time to render.
■ Vector. This template is a vector rendering style, which will render the scene in wireframe.
Auto Exposure
Select the Auto Exposure check box to render the scene with balanced brightness and contrast. This is essential
when using physically accurate lighting, such as a Sky or Sun light. If adding either of these lights to your scene,
you will be prompted to turn Auto Exposure on, if it is not already.
Use Presenter Texture Space
Texture space describes the way in which a texture is applied to an item. For example, applying a cylindrical
texture space to a pipe will cause textures on the pipe to be rendered more naturally. An item’s texture space
may have been assigned from the original CAD application and stored in the native CAD file, or set up within
the Presenter window with the options of Box, Plane, Cylinder, or Sphere. The Explicit option allows a user-defined
texture space to be applied and will be available if the item had a texture space applied to it in the original CAD
application. Each texture space option applies some imaginary bounding geometry around the item and
“shrink-wraps” the texture as best it can to the geometry underneath this bounding geometry.
If you’ve applied a texture to an item, the Presenter window will attempt to work out the best fit from the four
texture spaces available. If this isn't what you intended, then you can then edit the texture space.
376 | Chapter 14 Create Photorealistic Visualizations