Documentation / Node reference / geo nodes
geo/AreaLight
A rectangular panel light, like a softbox or a lit window.
Lights
A physically based rectangular emitter (linearly transformed cosines). The panel lies in the node's local plane and shines along its forward axis; width and height set its world size. A larger panel gives broader, softer highlights and gentler falloff. Area lights do not cast shadows yet.
Parameters
| Name | Type | What it does |
|---|---|---|
| color | Color | Light color. |
| intensity | Float | Light brightness. Scales the color's contribution. |
| width | Float | Panel width, in world units. A larger panel lights more broadly and softly. |
| height | Float | Panel height, in world units. A larger panel lights more broadly and softly. |
| softness | Float | How soft this light's shadow is. Larger is softer, 0 is a hard edge. It is not derived from width and height, since the panel's apparent size changes with distance and this is one number for the whole scene. Only SDF objects can be shadowed by an area light today, since they march their own field and need no shadow map (mat/MeshSDF, whose shadowSoftness scales this). |
| displayHelper | UInt8 ONLY_IN_EDITOR · ALWAYS · NEVER | When to draw the light's viewport helper. |
| helperSize | Float | Scale of the viewport helper. Display only. |
See also
This page is generated from the engine, so it describes the release you can download. The same text is in the editor's Help panel next to the node itself.