> ## Knowledge Base Index
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> Use this file to discover available pages before exploring further.
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# Lights - What & How to use?

Scene Lights are used to highlight the surface details, create new colors and build the scene atmosphere. 

|| The lighting will not be applied to web AR viewer. If you add additional lighting, please check that the materials on the 3D viewer match with the AR.

### How to add new light to the scene?

To add light, click the **Add light** button in the 3D scene tab and choose a light type.

**Ambient lighting** lights up the whole scene. It does not have a specific direction. 

**Directional** The directional simulates the light emitted by the sun.

**Point light** simulate a small light source, such as light bulbs.

**Spot light** simulates a light source with a direction and adjustable lighting area, such as a desk lamp.

**Rectangular light** is a light that has properties from a spot light and a directional light, such as a compute screen.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2023-02-27-at-13060_1c18jl7.png)

### Adjust light location

Adjusting lighting location works with the Type-in transformation units of x, y, z. All of the light will target 0, 0, 0 on the scene by default.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2023-02-27-at-13094_nzmm9h.png)

Alternatively, you can enable the free transform and use the pivot arrows.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2023-04-24-at-12133_4q6mxw.png)

### Switchable

Enables the toggle light on/off tool to the 3D viewer.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2023-02-27-at-13155_qxnx6w.png)

### Light color

Changes the color of the emitted light.

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2023-02-28-at-12582_gthv4v.png)

### Light settings

Each of the lights has its own settings.

**Intensity** Changes the overall brightness of the light. If your light is too strong, consider moving it further from the object.

**Penumbra** Fades in the light edges

**Angle** Increase the area of a spot light

**Distance** The distance the light will be carried (0 is infinite)

**Position** The location of the light in the scene. This also effects the direction the light is coming from. 

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2023-02-27-at-13204_16855rr.png)