2011
Table Of Contents
- Contents
- Get Information
- The User Interface
- Tools in the Application Window
- Other Tool Locations
- Customize the Drawing Environment
- Start and Save Drawings
- Control the Drawing Views
- Change Views
- Use Viewing Tools
- Display Multiple Views in Model Space
- Organize Drawings and Layouts
- Create Single-View Drawings (Model Space)
- Create Multiple-View Drawing Layouts (Paper Space)
- Work with Sheets in a Sheet Set
- Create and Modify Objects
- Control the Properties of Objects
- Work with Object Properties
- Work with Layers
- Work with Colors
- Work with Linetypes
- Control Lineweights
- Control the Display Properties of Certain Objects
- Use Precision Tools
- Use Coordinates and Coordinate Systems (UCS)
- Use Dynamic Input
- Snap to Locations on Objects (Object Snaps)
- Restrict Cursor Movement
- Combine or Offset Points and Coordinates
- Specify Distances
- Extract Geometric Information from Objects
- Use a Calculator
- Draw Geometric Objects
- Change Existing Objects
- Add Constraints to Geometry
- Control the Properties of Objects
- Define and Reference Blocks
- Work with Blocks
- Create and Modify Blocks
- Add Behaviors to Blocks (Dynamic Blocks)
- Overview of Dynamic Blocks
- Quick Start to Creating Dynamic Blocks
- Create and Edit Dynamic Blocks
- Add Constraints to Dynamic Blocks
- Add Action Parameters to Dynamic Blocks
- Work with 3D Models
- Create 3D Models
- Overview of 3D Modeling
- Create Solids and Surfaces from Lines and Curves
- Create Solids
- Create Surfaces
- Create Meshes
- Create Wireframe Models
- Add 3D Thickness to Objects
- Modify 3D Models
- Create Sections and 2D Drawings from 3D Models
- Create 3D Models
- Annotate Drawings
- Work with Annotations
- Hatches, Fills, and Wipeouts
- Notes and Labels
- Tables
- Dimensions and Tolerances
- Understand Basic Concepts of Dimensioning
- Use Dimension Styles
- Set the Scale for Dimensions
- Create Dimensions
- Modify Existing Dimensions
- Add Geometric Tolerances
- Plot and Publish Drawings
- Prepare Drawings for Plotting and Publishing
- Quick Start to Saving Settings for Plotting and Publishing
- Specify Page Setup Settings
- Overview of Page Setup Settings
- Select a Printer or Plotter for a Layout
- Select a Paper Size for a Layout
- Set the Plot Area of a Layout
- Adjust the Plot Offset of a Layout
- Set the Plot Scale for a Layout
- Set the Lineweight Scale for a Layout
- Select a Plot Style Table for a Layout
- Set Shaded Viewport and Plot Options for a Layout
- Determine the Drawing Orientation of a Layout
- Use the Layout Wizard to Specify Layout Settings
- Import PCP or PC2 Settings into a Layout
- Create and Use Named Page Setups
- Use Named Page Setups with Sheet Sets
- Plot Drawings
- Quick Start to Plotting
- Overview of Plotting
- Use a Page Setup to Specify Plot Settings
- Select a Printer or Plotter
- Specify the Area to Plot
- Set Paper Size
- Position the Drawing on the Paper
- Control How Objects Are Plotted
- Preview a Plot
- Plot Files to Other Formats
- Publish Drawings
- Prepare Drawings for Plotting and Publishing
- Share Data Between Files
- Reference Other Drawing Files
- Link and Embed Data (OLE)
- Work with Data in Other Formats
- Import Other File Formats
- Attach Files as Underlays
- Attach Raster Image Files
- Export Drawings to Other File Formats
- Use Drawings from Different Versions and Applications
- Extract Data from Drawings and Spreadsheets
- Access External Databases
- Overview of Using External Databases
- Access a Database from Within AutoCAD
- Link Database Records to Graphical Objects
- Use Labels to Display Database Information in the Drawing
- Use Queries to Filter Database Information
- Share Link and Label Templates and Queries with Other Users
- Work with Links in Files from Earlier Releases
- Manage Files with Autodesk Vault
- Collaborate with Others
- Protect and Sign Drawings
- Use the Internet for Collaboration
- Use Markups for Design Review
- Render Drawings
- Draw 2D Isometric Views
- Add Lighting to Your Model
- Materials and Textures
- Render 3D Objects for Realism
- Glossary
- Index
6 Press Enter twice to exit the command. A distant light is not displayed
as a light glyph.
To change the properties of a distant light. Enter lightlist at the command
prompt. In the Lights in Model window, double click on the distant light
name from the light list and use the Lighting Properties palette to change
its color and other properties.
Assigning a Shape to a Light
Assigning a shape to a light modifies the illumination of a scene.
Area and Linear Lights
The "area" parameter on the light is a property of a light. Just as a light can
have a color, it can also be assigned a shape. For example, you can shape it
like a rectangle so that it acts like panel lighting in a ceiling. Or you can shape
it like a line, so it acts like a narrow fluorescent light tube. The area light is a
way to assign a shape to the light. The shape affects the rendering and shadows
in the same way that a panel light casts different light than a tube light in the
real world.
The shape property is available in the Lighting Properties palette. This property
is displayed on the palette based on the type of property selected. Under the
Render Shadow Detail panel, there is a Type property. This specifies the type
of shadow cast by the light. The following types are available: Soft (shadow)
map, Sharp (default), Soft (sampled). By selecting the Soft (sampled) option,
the Shape property becomes available.
The available shapes depend on the type of light. You can select the Type
property for the light distribution under the General panel in the Lighting
Properties palette. If Spotlight and Soft (sampled) are selected, then the Shape
types available are Rectangular and Disk. If Point and Soft (sampled) are
selected, then the following shapes are available: Linear, Rectangular, Disk,
Cylinder, and Sphere. If Web and Soft (sampled) are selected, then the
following shapes are available: Linear, Rectangular, Disk, Cylinder, and Sphere.
You can use the samples property on the area light to control the trade-off
between rendering time and shadow accuracy.
The Visible Render property found under the Rendered Shadows Details panel
controls the visibility of the shape in the rendering of the scene.
Assigning a Shape to a Light | 2041