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{{Page/Header|2.5|Doc:2.5/Manual/Lighting/Lamps/Spot/Buffered Shadows|Doc:2.5/Manual/Lighting/Lamps/Hemi}}

{{review|im=examples}}

= Area Lamp =
The {{literal|Area}} lamp simulates light originating from a surface (or surface-like) emitter. For example, a TV screen, your supermarket’s neon lamps, a window, or a cloudy sky are just a few types of area lamp. The area lamp produces shadows with soft borders by sampling a lamp along a grid the size of which is defined by the user. This is in direct contrast to point-like artificial lights which produce sharp borders.
{{Clr}}

[[File:25-Manual-Lighting-Lamps-Area-ComOptions.png|thumb|308px|Commons Options]]
== Lamp options ==
{{Literal|Distance}}, {{Literal|Energy}} and {{Literal|Color}}
:These settings are common to most types of lamps, and are described in [[Doc:2.6/Manual/Lighting/Lights/Light Properties|Light Properties]].

:Note that the {{Literal|Distance}} setting is much more sensitive and important for {{Literal|Area}} lamps than for others; usually any objects within the range of {{Literal|Distance}} will be blown out and overexposed. For best results, set the {{Literal|Distance}} to just below the distance to the object that you want to illuminate.

;{{Literal|Gamma}}
: Amount to gamma correct the brightness of illumination. Higher values give more contrast and shorter falloff.

: The {{literal|Area}} lamp doesn’t have light falloff settings. It uses an “inverse quadratic” attenuation law. The only way to control its falloff is to use the {{Literal|Distance}} and/or {{Literal|Gamma}} settings.

;{{Literal|This Layer Only}}, {{Literal|Negative}}, {{Literal|Specular}} and {{Literal|Diffuse}}
:These settings control what the lamp affects, as described in [[Doc:2.6/Manual/Lighting/Lights/What Light Affects|What Light Affects]].

== Shadows ==
Area light ray-traced shadows are described here: [[Doc:2.6/Manual/Lighting/Lamps/Area/Raytraced_Shadows|Raytraced Shadows]].

When an {{Literal|Area}} light source is selected, the {{Literal|Shadow}} panel has the following default layout:

{| align=center
| valign=top | [[File:25-Manual-Lighting-Lamps-Area-AdapQMC.png|thumb|300px|{{Literal|Adaptive QMC}} settings]]
| valign=top | [[File:25-Manual-Lighting-Lamps-Area-ContJitt.png|thumb|300px|{{Literal|Constant Jittered}} settings]]
|-
| colspan="2" | The {{Literal|Shadow}} panel when {{Literal|Area}} light source is selected
|}

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== Area Shape ==
The shape of the area light can be set to {{Literal|Square}} or {{Literal|Rectangle}}.

[[File:25-Manual-Lighting-Lamps-Area-Square.png|thumb|308px|{{Literal|Square}} options]]
[[File:25-Manual-Lighting-Lamps-Area-Rect.png|thumb|308px|{{Literal|Rectangle}} options]]
; {{Literal|Square}}/{{Literal|Rectangular}}
: Emit light from either a square or a rectangular area
;{{Literal|Size}}/{{Literal|Size X}}/{{Literal|Size Y}}
: Dimensions for the {{Literal|Square}} or {{Literal|Rectangle}}

{{Note
| Shape Tips
| Choosing the appropriate shape for your {{Literal|Area}} light will enhance the believability of your scene. For example, you may have an indoor scene and would like to simulate light entering through a window. You could place a {{Literal|Rectangular}} area lamp in a window (vertical) or from neons (horizontal) with proper ratios for {{Literal|Size X}} and {{Literal|Size Y}}. For the simulation of the light emitted by a TV screen a vertical {{Literal|Square}} area lamp would be better in most cases.
}}
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[[Category:Lamps]]
[[Category:Lighting]]

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