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    <feDiffuseLighting>

    この記事はまだボランティアによって 日本語 に翻訳されていません。ぜひ MDN に参加して翻訳を手伝ってください！

    The <feDiffuseLighting> SVG filter primitive lights an image using the alpha channel as a bump map. The resulting image, which is an RGBA opaque image, depends on the light color, light position and surface geometry of the input bump map.

    The light map produced by this filter primitive can be combined with a texture image using the multiply term of the arithmetic operator of the <feComposite> filter primitive. Multiple light sources can be simulated by adding several of these light maps together before applying it to the texture image.

    Usage context

    CategoriesFilter primitive element
    Permitted contentAny number of descriptive elements and exactly one light source element, in any order.

    Attributes

    Global attributes

    Specific attributes

    DOM Interface

    This element implements the SVGFEDiffuseLightingElement interface.

    Example

    The following example show the effect of the <feDiffuseLighting> element on a circle with each light source available. Each time, the light comes from the upper left corner.

    <svg width="440" height="140" xmlns="https://www.w3.org/2000/svg">

  <!-- No light is applied -->
  <text text-anchor="middle" x="60" y="22">No Light</text>
  <circle cx="60" cy="80" r="50" fill="green" />

  <!-- the light source is a fePointLight element -->
  <text text-anchor="middle" x="170" y="22">fePointLight</text>
  <filter id="lightMe1">
    <feDiffuseLighting in="SourceGraphic" result="light"
        lighting-color="white">
      <fePointLight x="150" y="60" z="20" />
    </feDiffuseLighting>

    <feComposite in="SourceGraphic" in2="light"
                 operator="arithmetic" k1="1" k2="0" k3="0" k4="0"/>
  </filter>

  <circle cx="170" cy="80" r="50" fill="green"
      filter="url(#lightMe1)" />

  <!-- the light source is a feDistantLight element -->
  <text text-anchor="middle" x="280" y="22">feDistantLight</text>
  <filter id="lightMe2">
    <feDiffuseLighting in="SourceGraphic" result="light"
        lighting-color="white">
      <feDistantLight azimuth="240" elevation="20"/>
    </feDiffuseLighting>

    <feComposite in="SourceGraphic" in2="light"
                 operator="arithmetic" k1="1" k2="0" k3="0" k4="0"/>
  </filter>

  <circle cx="280" cy="80" r="50" fill="green"
      filter="url(#lightMe2)" />

  <!-- the light source is a feSpotLight source -->
  <text text-anchor="middle" x="390" y="22">feSpotLight</text>
  <filter id="lightMe3">
    <feDiffuseLighting in="SourceGraphic" result="light"
        lighting-color="white">
      <feSpotLight x="360" y="5" z="30" limitingConeAngle="20"
                   pointsAtX="390" pointsAtY="80" pointsAtZ="0"/>
    </feDiffuseLighting>

    <feComposite in="SourceGraphic" in2="light"
                 operator="arithmetic" k1="1" k2="0" k3="0" k4="0"/>
  </filter>

  <circle cx="390" cy="80" r="50" fill="green"
      filter="url(#lightMe3)" />
</svg>

    Expected rendering:

    Expected rendering for the example

    Live rendering:

    Specifications

    Specification Status Comment
    Filter Effects Module Level 1
    The definition of '<feDiffuseLighting>' in that specification.    		 Working Draft Deprecated kernelUnitLength attribute
    Scalable Vector Graphics (SVG) 1.1 (Second Edition)
    The definition of '<feDiffuseLighting>' in that specification.    		 Recommendation Initial definition

    Browser compatibility

    Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) 20 or earlier (12.10049) (Yes) (Yes) (Yes) ?
    Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
    Basic support ? ? ? ? ?

    See also

    ドキュメントのタグと貢献者

    タグ: 
     このページの貢献者: Sebastianz, kscarfone, Jeremie, Manuel_Strehl
     最終更新者: Sebastianz,