2013
Table Of Contents
- Contents
- Get Information
- The User Interface
- Start and Save Drawings
- Control the Drawing Views
- Organize Drawings and Layouts
- Create Single-View Drawings (Model Space)
- Create Multiple-View Drawing Layouts (Paper Space)
- Work with Layouts in a Project
- Create and Modify Objects
- Control the Properties of Objects
- Use Precision Tools
- Work with the User Coordinate System (UCS)
- Enter Coordinates to Specify Points
- 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
- Create Objects
- Select and Modify Objects
- Select Objects
- Correct Mistakes
- Erase Objects
- Cut, Copy, and Paste with the Clipboard
- Modify Objects
- Add Constraints to Geometry
- Define and Reference 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 Drawings from 3D Models
- Create 3D Models
- Annotate Drawings
- Work with Annotations
- Overview of Annotations
- Scale Annotations
- Overview of Scaling Annotations
- Set Annotation Scale
- Create Annotative Objects
- Display Annotative Objects
- Add and Modify Scale Representations
- Set Orientation for Annotations
- Hatches, Fills, and Wipeouts
- Notes and Labels
- Overview of Notes and Labels
- Create Text
- Create Leaders
- Use Fields in Text
- Work with Text Styles
- Change Text
- Check Spelling
- Format Multiline Text at the Command Prompt
- 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
- Work with Annotations
- Plot and Publish Drawings
- Specify Settings for Plotting
- Save Plot Settings as Named Page Setups
- Reuse Named Page Setups
- Specify Page Setup Settings
- Select a Printer or Plotter for a Layout
- Select a Paper Size for a Layout
- Determine the Drawing Orientation of 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
- Named Page Setups with Projects
- Print or Plot Drawings
- 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
- Specify Settings for Plotting
- Share Data Between Files
- Reference Other Drawing Files
- Work with Data in Other Formats
- Import Other File Formats
- Attach PDF Files as Underlays
- Attach Raster Image Files
- Export Drawings to Other File Formats
- Use Drawings from Different Versions and Applications
- Collaborate with Others
- Render Drawings
- Draw 2D Isometric Views
- Add Lighting to Your Model
- Materials and Textures
- Render 3D Objects for Realism
- Glossary
- Index
In clear weather, the color of sunlight is a pale yellow: for example, RGB values
of 250, 255, 175 (HSV 45, 80, 255). Cloudy weather can tint sunlight blue,
shading into dark gray for stormy weather. Particles in the air can give sunlight
an orange or brownish tint. At sunrise and sunset, the color can be more
orange or red than yellow.
Shadows are more distinct the clearer the day is, and can be essential for
bringing out the three-dimensionality of a naturally lit scene.
A directional light can also simulate moonlight, which is white but dim
compared to the sun.
Artificial Light
A scene illuminated by point lights, spotlights, or distant lights is artificially
illuminated. Therefore, it can be helpful to know how light behaves.
When light rays strike a surface, the surface reflects them, or at least some of
them, enabling us to see the surface. The appearance of a surface depends on
the light that strikes it combined with the properties of the surface material,
such as color, smoothness, and opacity.
Other factors, such as a light’s color, intensity, attenuation, and angle of
incidence also play a role in how objects in a scene appear.
Use Point Lights
A point light radiates light in all directions from its location.
Point Lights
A point light radiates light in all directions from its location. A point light
does not target an object. Use point lights for general lighting effects. You can
create a point light by entering the POINTLIGHT command or by selecting a
point light from the Lights panel on the ribbon.
You create a target point light with the TARGETPOINT command. The
difference between the target point light and a point light is the additional
target properties that are available. A target light can be pointed to an object.
A target point light can also be created from a point light by changing the
target property of the point light from No to Yes.
In the standard lighting workflow, you can set a point light manually so its
intensity diminishes with respect to distance either linearly, according to the
Add Lighting to Your Model | 717