User Guide (Version 1.21)

Setting Dawn and Dusk Effects

You can simulate the changing lighting effects that are caused by the sun moving across a dynamic sky. You can set sunrise time, duration of dawn, sunset time, duration of dusk, current time, and the path of the sun.

To set dawn and dusk effects

  1. In Lumberyard Editor, choose Tools, Other, Sun Trajectory Tool.

  2. In the Sun Trajectory Tool, set the following properties and parameter values as needed.

    Parameter Description
    Time of Day

    Sets the current time.

    Sun Direction

    Specifies the direction where the sun rises.

    Dawn Time

    Specifies the time the sun will rise.

    Dawn Duration

    Sets the transition duration of moon-to-sun lighting.

    Dusk Time

    Specifies the time the sun will set.

    Dusk Duration

    Sets the transition duration of sun-to-moon lighting.

    Force sky update

    If selected, updates the sky light calculations for each frame. If cleared, distributes calculations over several frames.


    Imports settings from a saved lighting file (.lgt).


    Exports current settings to a lighting file (.lgt).

    Terrain Occlusion

    Creates the effect of indirect lighting.

    Super Sampling

    Interpolates the pixels of indirect sampling data to eliminate hard transitions.
  3. Close the Sun Trajectory Tool editor.