内容表

• Usage context
• 属性
• DOM Interface
• 范例
• 规范
• 浏览器兼容性
• 另请参阅

<feSpotLight>

1. <feblend>
2. <fecolormatrix>
3. <fecomponenttransfer>
4. <fecomposite>
5. <feconvolvematrix>
6. <fediffuselighting>
7. <fedisplacementmap>
8. <feflood>
9. <fefunca>
10. <fefuncb>
11. <fefuncg>
12. <fefuncr>
13. <fegaussianblur>
14. <feimage>
15. <femerge>
16. <femergenode>
17. <femorphology>
18. <feoffset>
19. <fepointlight>
20. <fespecularlighting>
21. <fespotlight>
22. <fetile>
23. <feturbulence>
24. SVG 元素

    1. A
       1. <a>
       2. <altGlyph>
       3. <altGlyphDef>
       4. <altGlyphItem>
       5. <animate>
       6. <animateColor>
       7. <animateMotion>
       8. <animateTransform>
    2. B-C
       1. <circle>
       2. <clipPath>
       3. <color-profile>
       4. <cursor>
    3. D
       1. <defs>
       2. <desc>
    4. E
       1. <ellipse>
    5. F
       1. <feBlend>
       2. <feColorMatrix>
       3. <feComponentTransfer>
       4. <feComposite>
       5. <feConvolveMatrix>
       6. <feDiffuseLighting>
       7. <feDisplacementMap>
       8. <feDistantLight>
       9. <feFlood>
       10. <feFuncA>
       11. <feFuncB>
       12. <feFuncG>
       13. <feFuncR>
       14. <feGaussianBlur>
       15. <feImage>
       16. <feMerge>
       17. <feMergeNode>
       18. <feMorphology>
       19. <feOffset>
       20. <fePointLight>
       21. <feSpecularLighting>
       22. <feSpotLight>
       23. <feTile>
       24. <feTurbulence>
       25. <filter>
       26. <font>
       27. <font-face>
       28. <font-face-format>
       29. <font-face-name>
       30. <font-face-src>
       31. <font-face-uri>
       32. <foreignObject>
    6. G
       1. <g>
       2. <glyph>
       3. <glyphRef>
    7. H
       1. <hkern>
    8. I
       1. <image>
    9. J-L
       1. <line>
       2. <linearGradient>
    10. M
        1. <marker>
        2. <mask>
        3. <metadata>
        4. <missing-glyph>
        5. <mpath>
    11. N-P
        1. <path>
        2. <pattern>
        3. <polygon>
        4. <polyline>
    12. Q-R
        1. <radialGradient>
        2. <rect>
    13. S
        1. <script>
        2. <set>
        3. <stop>
        4. <style>
        5. <svg>
        6. <switch>
        7. <symbol>
    14. T
        1. <text>
        2. <textPath>
        3. <title>
        4. <tref>
        5. <tspan>
    15. U
        1. <use>
    16. V-Z
        1. <view>
        2. <vkern>

<feSpotLight> SVG filter primitive defines a light source that can be used to create a spotlight effect. It is used within a lighting filter primitive: <feDiffuseLighting> or <feSpecularLighting> .

Usage context

类别	Light source element
准许内容	Any number of the following elements, in any order: <animate> , <set>

属性

全局属性

• Core attributes

Specific attributes

• x
• y
• z
• pointsAtX
• pointsAtY
• pointsAtZ
• specularExponent
• limitingConeAngle

DOM Interface

This element implements the SVGFESpotLightElement 接口。

范例

HTML 内容

<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg"


xmlns:

xlink



=


"

http://www.w3.org/1999/xlink

"



>





<

defs


>





<

filter


id



=


"

spotlight

"



>





<

feSpecularLighting


result



=


"

spotlight

"



specularConstant



=


"

1.5

"



specularExponent



=


"

4

"



lighting-color



=


"

#FFF

"



>





<

feSpotLight


x



=


"

600

"



y



=


"

600

"



z



=


"

400

"



limitingConeAngle



=


"

5.5

"



/>





</

feSpecularLighting


>





<

feComposite


in



=


"

SourceGraphic

"



in2



=


"

spotlight

"



operator



=


"

out

"



k1



=


"

0

"



k2



=


"

1

"



k3



=


"

1

"



k4



=


"

0

"



/>





</

filter


>





</

defs


>





<

image



xlink:

href



=


"

/files/6457/mdn_logo_only_color.png

"



x



=


"

10%

"



y



=


"

10%

"



width



=


"

80%

"



height



=


"

80%

"




style



=


"



filter


:



url


(

#spotlight

)



;



"




/>





</

svg


>



					

结果

规范

规范
Filter Effects Module Level 2 (Filter Effects 2) # feSpotLightElement

浏览器兼容性

BCD tables only load in the browser

另请参阅

• <filter>
• <animate>
• <set>
• <feDiffuseLighting>
• <feSpecularLighting>
• <feDistantLight>
• <fePointLight>
• SVG tutorial: Filter effects

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最后修改： Dec 20, 2021 , 由 MDN 贡献者