seed

The seed attribute represents the starting number for the pseudo random number generator of the <feTurbulence> filter primitive.

You can use this attribute with the following SVG elements:

<feTurbulence>

Example

Example 1

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="noise1" x="0" y="0" width="100%" height="100%">
    <feTurbulence baseFrequency="0.025" seed="0" />
  </filter>
  <filter id="noise2" x="0" y="0" width="100%" height="100%">
    <feTurbulence baseFrequency="0.025" seed="100" />
  </filter>

  <rect x="0" y="0" width="200" height="200" style="filter:url(#noise1);" />
  <rect
    x="0"
    y="0"
    width="200"
    height="200"
    style="filter:url(#noise2); transform: translateX(220px);" />
</svg>

Example 2

html

<svg
  width="200"
  height="200"
  viewBox="0 0 220 220"
  xmlns="http://www.w3.org/2000/svg">
  <filter id="displacementFilter">
    <feTurbulence baseFrequency="0.05" seed="1000" result="turbulence" />
    <feDisplacementMap
      in2="turbulence"
      in="SourceGraphic"
      scale="50"
      xChannelSelector="R"
      yChannelSelector="G" />
  </filter>

  <circle cx="100" cy="100" r="100" style="filter: url(#displacementFilter)" />
</svg>

Usage notes

Value	`<number>`
Default value	`0`
Animatable	Yes

Specifications

Specification
Filter Effects Module Level 1 # element-attrdef-feturbulence-seed

Browser compatibility

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