Sun Study

The Omniverse USD Presenter Sun Study tools allow users to review a model with accurate sunlight.

Walkthrough (Video)

Sun Study Timeline

Invoke the Sun Study timeline from the Window menu. It appears on the bottom of the viewport:

Numbered arrows for accessing the Sun Study panel

Here, you can scrub or play through a given day/night cycle.

Note

In order to use Sun Study, one of the dynamic skies must be set in your scene. To set a dynamic sky, navigate to Dynamic Skies from the Environment Browser panel.

Location

In order to accurately represent the Sun, Omniverse USD Presenter needs the latitude and longitude of the location you wish to represent. To access the Sun Study Location panel, navigate to Window > Set Location:

Numbered arrows for accessing the Sun Study Location panel

Option

Description

Preset

Shows a list of pre-defined locations

Latitude

Sets the latitudinal position in degrees, minutes, seconds

Longitude

Sets the longitudinal position in degrees, minutes, seconds

North Orientation

Sets the North offset rotation

Close

Confirms and sets the location settings

Cancel

Discards the location settings and exits the window

Note

Many tools give GPS coordinate data. This is not the same as latitude and longitude. GPS coordinates include a North/South by East/West designation. To convert to latitude and longitude, invert West or South designations with a negative value. For example convert 22 degrees South (22.00’000 South) to –22.00.000 and 35 degrees West (35.00’000 West) to –35.00.000. Ignore East and North designations, because they’re both positive and do not require any alterations to work.

Date and Time

You can set the date and time for the Sun Study for accurate lighting results. To access the Sun Study Date & Time panel, click the date and time indicator in the Sun Study panel:

Numbered arrows for accessing the Sun Study Date & Time panel

Option

Description

Month Select

Sets Sun position for the month selected

Year Select

Sets Sun position for the year selected

Calendar Day Select

Sets Sun position for the day selected

Time selected

Sets Sun position for the time selected

Apply

Confirms and sets the date and time settings

Cancel

Discards the date and time settings and exits the window