https://wiki.blender.jp/index.php?action=history&feed=atom&title=Doc%3A2.6%2FManual%2FLighting%2FLamps%2FSpotDoc:2.6/Manual/Lighting/Lamps/Spot - 版の履歴2026-06-07T10:00:05Zこのウィキのこのページに関する変更履歴MediaWiki 1.31.0https://wiki.blender.jp/index.php?title=Doc:2.6/Manual/Lighting/Lamps/Spot&diff=103671&oldid=prevYamyam: 1版 をインポートしました2018-06-28T19:41:57Z<p>1版 をインポートしました</p>
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<p><b>新規ページ</b></p><div>{{Page/Header|2.5|Doc:2.5/Manual/Lighting/Lamps/Point|Doc:2.5/Manual/Lighting/Lamps/Spot/Buffered Shadows}}<br />
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{{review|text=like 2.4?}}<br />
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= Spot Lamp =<br />
A {{Literal|Spot}} lamp emits a cone-shaped beam of light from the tip of the cone, in a given direction.<br />
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The {{Literal|Spot}} light is the most complex of the light objects and indeed, for a long time, among the most used thanks to the fact that it was the only one able to cast shadows. Nowadays, with a ray tracer integrated into Blender's internal render engine, all lamps can cast shadows (except {{literal|Hemi}}). Even so, {{Literal|Spot}} lamps’ shadow buffers are much faster to render than ray-traced shadows, especially when blurred/softened, and spot lamps also provide other functionality such as “volumetric” halos.<br />
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== Lamp options ==<br />
[[File:25-Manual-Lighting-Lamps-Spot-LampOptions.png|thumb|307px|Common {{Literal|Lamp}} options of a {{Literal|Spot}}]]<br />
;{{Literal|Distance}}, {{Literal|Energy}} and {{Literal|Color}}<br />
:These settings are common to most types of lamps, and are described in [[Doc:2.6/Manual/Lighting/Lights/Light Properties|Light Properties]].<br />
;{{Literal|This Layer Only}}, {{Literal|Negative}}, {{Literal|Diffuse}} and {{Literal|Specular}}<br />
:These settings control what the lamp affects, as described in [[Doc:2.4/Manual/Lighting/Lights/What Light Affects|What Light Affects]].<br />
;{{Literal|Light Falloff}} and {{Literal|Sphere}}<br />
:These settings control how the light of the {{Literal|Spot}} decays with distance. See [[Doc:2.6/Manual/Lighting/Lights/Light Attenuation|Light Attenuation]] for details.<br />
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[[File:25-Manual-Lighting-Lamps-Spot-Terms.png|thumb|610px|center|Changing the {{Literal|Spot}} options also changes the appearance of the spotlight as displayed in the 3D View]]<br />
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== Shadows==<br />
[[File:25-Manual-Lighting-Lamps-Spot-RayPanel.png|thumb|306px|{{Literal|Shadow}} panel set to {{Literal|Ray Shadow}}]]<br />
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Spotlights can use either ray-traced shadows or buffered shadows. Either of the two can provide various extra options. Ray-traced shadows are generally more accurate, with extra capabilities such as transparent shadows, although they are quite slower to render. <br />
; {{Literal|No Shadow}}<br />
: Choose this to turn shadows off for this spot lamp. This can be useful to add some discreet directed light to a scene.<br />
; {{Literal|Buffer Shadow}}<br />
:{{Literal|Buffered Shadows}} are also known as depth map shadows. Shadows are created by calculating differences in the distance from the light to scene objects. See [[Doc:2.6/Manual/Lighting/Lamps/Spot/Buffered Shadows|Buffered Shadows]] for full details on using this feature.<br />
:Buffered shadows are more complex to set up and involve more faking, but the speed of rendering is a definite advantage. Nevertheless, it shares with other lamp types common shadow options described in [[Doc:2.6/Manual/Lighting/Shadows/Properties|Shadows Properties]].<br />
; {{Literal|Ray Shadow}}<br />
:The ray-traced shadows settings of this lamp are shared with other lamps, and are described in [[Doc:2.6/Manual/Lighting/Shadows/Raytraced Properties|Raytraced Properties]].<br />
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== Spot Shape==<br />
; {{Literal|Size}}<br />
:The size of the outer cone of a {{Literal|Spot}}, which largely controls the circular area a {{Literal|Spot}} light covers. This slider in fact controls the angle at the top of the lighting cone, and can be between '''1.0°''' and '''180.0°'''.<br />
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{| align="center"<br />
| [[File:25-Manual-Lighting-Lamps-Spot-Size45.png|300px|]]<br />
| [[File:25-Manual-Lighting-Lamps-Spot-Size60.png|300px|]]<br />
|-<br />
| colspan="2" | Changing the spot {{Literal|Size}} option<br />
|}<br />
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; {{Literal|Blend}}: The {{Literal|Blend}} slider controls the inner cone of the {{Literal|Spot}}. The {{Literal|Blend}} value can be between '''0.0''' and '''1.0'''. The value is proportional and represents that amount of space that the inner cone should occupy inside the outer cone ({{Literal|Size}}).<br />
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: The inner cone boundary line indicates the point at which light from the {{Literal|Spot}} will start to blur/soften; before this point its light will mostly be full strength. The larger the value of {{Literal|Blend}} the more blurred/soft the edges of the spotlight will be, and the smaller the inner cone's circular area will be (as it starts to blur/soften earlier).<br />
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:To make the {{Literal|Spot}} have a sharper falloff rate and therefore less blurred/soft edges, decrease the value of {{Literal|Blend}}. Setting {{Literal|Blend}} to '''0.0''' results in very sharp spotlight edges, without any transition between light and shadow.<br />
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:The falloff rate of the {{Literal|Spot}} lamp light is a ratio between the {{Literal|Blend}} and {{Literal|Size}} values; the larger the circular gap between the two, the more gradual the light fades between {{Literal|Blend}} and {{Literal|Size}}.<br />
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:{{Literal|Blend}} and {{Literal|Size}} only control the {{Literal|Spot}} light cone’s aperture and softness (“radial” falloff); they do not control the shadow’s softness as shown below.<br />
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{| align="center"<br />
| [[File:Manual - Shadow & Spot - Spotlight - Render - Sharp Shadow.png|thumb|400px|center|Render showing the soft edge spotlighted area and the sharp/hard object shadow]]<br />
|}<br />
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: Notice in the picture above that the object’s shadow is sharp as a result of the ray tracing, whereas the spotlight edges are soft. If you want other items to cast soft shadows within the {{Literal|Spot}} area, you will need to alter other shadow settings.<br />
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; {{Literal|Square}}<br />
:The {{Literal|Square}} button makes a {{Literal|Spot}} light cast a square light area, rather than the default circular one.<br />
; {{Literal|Show Cone}}<br />
: Draw a transparent cone in 3D view to visualize which objects are contained in it.<br />
; {{Literal|Halo}}<br />
: Adds a volumetric effects to the spot lamp. See [[Doc:2.6/Manual/Lighting/Lamps/Spot/Halos|Spot Halos]].<br />
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{{Page/Footer|Doc:2.5/Manual/Lighting/Lamps/Point|Doc:2.5/Manual/Lighting/Lamps/Spot/Buffered Shadows}}<br />
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[[Category:Lamps]]<br />
[[Category:Lighting]]</div>wiki>Mam711