The baseFrequency
attribute represents the base frequency parameter for the noise function of the <feTurbulence>
filter primitive.
Only one element is using this attribute: <feTurbulence>
html, body, svg { height: 100%; }
<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" /> </filter> <filter id="noise2" x="0" y="0" width="100%" height="100%"> <feTurbulence baseFrequency="0.05" /> </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>
Usage notes
Value | <number-optional-number> |
---|---|
Default value | 0 |
Animatable | Yes |
<number-optional-number>
If two numbers are provided, the first one represents the base frequency in the horizontal direction and the second one the base frequency in the vertical direction. If one number is provided, then that value is used for both x and y.
Negative values are forbidden.
Example
<svg width="200" height="200" viewBox="0 0 220 220" xmlns="http://www.w3.org/2000/svg"> <filter id="displacementFilter"> <feTurbulence type="turbulence" baseFrequency="0.05" numOctaves="2" 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>
Specifications
Specification | Status | Comment |
---|---|---|
Filter Effects Module Level 1 The definition of 'baseFrequency' in that specification. |
Working Draft | No change |
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'baseFrequency' in that specification. |
Recommendation | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
baseFrequency | Chrome Full support Yes | Edge
Full support
12
| Firefox Full support 4 | IE
Full support
Yes
| Opera Full support 9 | Safari ? | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS ? | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- See implementation notes.
- See implementation notes.