Module ria/view/LightEffect

Creates a directional light source which automatically follows the orientation of the viewer.

The head light direction is linked to the orientation of the camera in 3D. That is a useful feature in many applications where lighting can improve a user’s perception of shape. In this case, lighting is not used to represent the time of day. The user does not need the whole earth to have a bright side and a dark side.

This light only has effect on a 3D WebGLMap.
The lighting affects:

• terrain, based on the elevation data
• draped shapes
• non-draped shapes such as extruded shapes and mesh icons

Creates a sun light source based on a specific time.

This light will simulate a sun light at the given time.

This light has effect on a 2D or 3D WebGLMap.
In 3D the lighting affects:

• terrain, based on the elevation data
• draped shapes
• non-draped shapes such as extruded shapes and mesh icons
• the night side of the earth: it is desaturated
• meshes of OGC 3D Tiles layers if their mesh style has lighting turned on

In 2D, the night side of the earth is desaturated.