Light select mode is used to select point lights in the environment. A [i]point light[/i] is a position from which light emanates in all directions. Lights are defined in the [link=properties_environment_parameters]Environment Parameters[/link] properties panel, and are hidden by default; use the [link=show_hide_lights]Show Lights[/link] menu item to make them visible.

When in Light select mode, lights are hit detected in a circular radius around their onscreen position, prioritized by their proximity to the cursor. Light hit detection is not affected by mesh geometry. [link=selection_peeling]Selection peeling[/link] can be used to assist with selecting a specific light when lights are visually overlapping.

Clicking the [!keybind]left mouse button when a light is moused over will deselect all other lights and select that light. Holding the [!keybind]Shift key will toggle the selected status of the moused over light.

Pressing the [!keybind]Tab key in Light select mode will cycle through all lights in the environment in numerical order. Holding the [!keybind]Shift key will cycle in reverse.

[!todo]Currently, Stem3D's renderer only supports up to two point lights and one directional (sun) light. Additional lights will not yet have a visible effect on the image.