SUNPROPERTIES command

Opens the Drawing explorer dialog box with Lights selected.

Icon:

Alias: SUN

Description

Opens the with Lights category selected to view and modify sun properties in the current drawing.

Options within the command

General

Status: Toggles the sun on and off.

Intensity factor: Specifies the intensity or brightness of the sun; the higher the number, the brighter the light.

Shadows: Toggles the display of shadows by the sunlight.

Note: The color of the sunlight is hard-coded.

Sun Angle Calculator

Date: Displays the current date. Edit the date to show the sun at a different time of year.

Time: Displays the current time. Edit the time to show the sun at a different time of day.

Daylight saving: Toggles the effect of daylight saving time on the time property.

Azimuth: Reports the horizontal angle of the sun measured clockwise from the north.

Note: This setting cannot be changed as the program calculates it from the other settings in this section.

Altitude: Reports the vertical angle of the sun, measured from the horizon.

Note: This setting cannot be changed as the program calculates it from the other settings in this section.

Source vector: Reports the direction of the sunlight. This setting cannot be changed as the program calculates it from the other settings in this section.

Rendered Shadow Details

Type: Displays realistic shadows with softer shadows based on extended light sources, according to the Softness property.

Softness: Determines the sampling size of shadows. Larger numbers are more accurate but take longer to render.

Geographic Location: Reports location of the drawing on earth. To change the location, click the Edit button to access the Geographic Location dialog box; see GEOGRAPHICLOCATION command.

Context menu options

New: Loads additional light definitions into the drawing.

Delete: Deletes light definitions from the drawing.

Rename: Renames the light definition.

Select All: Selects all light definitions.

Invert selection : Deselects the current selection and vice versa.

Set current: Sets the selected light definition as current.