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---
title: seed
slug: Web/SVG/Attribute/seed
page-type: svg-attribute
browser-compat: svg.elements.feTurbulence.seed
---
{{SVGRef}}
The **`seed`** attribute represents the starting number for the pseudo random number generator of the {{SVGElement("feTurbulence")}} filter primitive.
You can use this attribute with the following SVG elements:
- {{SVGElement("feTurbulence")}}
## Example
### Example 1
```css hidden
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>
```
{{EmbedLiveSample("Example 1", "220", "220")}}
### 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>
```
{{EmbedLiveSample("Example 2", "220", "250")}}
## Usage notes
<table class="properties">
<tbody>
<tr>
<th scope="row">Value</th>
<td>{{cssxref("number")}}</td>
</tr>
<tr>
<th scope="row">Default value</th>
<td><code>0</code></td>
</tr>
<tr>
<th scope="row">Animatable</th>
<td>Yes</td>
</tr>
</tbody>
</table>
## Specifications
{{Specifications}}
## Browser compatibility
{{Compat}}