feTurbulence filter primitive

parameters:

type: fractalNoise or turbulence

for each type:

Using pattern, you can fill shape with texture.

Example of code using feTurbulence to create pattern and fill shape:

<defs>
    <filter id="MyFilter" filterUnits="userSpaceOnUse" x="0" y="0" width="400" height="400">
       <feTurbulence type="fractalNoise" baseFrequency="0.01,0.1" numOctaves="4" seed='1'/>
    </filter>
    <pattern id="motif" patternUnits="userSpaceOnUse" x="0" y="0" width="400" height="400">
       <use filter="url(#MyFilter)"/>
    </pattern> 
</defs>
<circle cx='200' cy='200' r='200' style='stroke:black;fill:url(#motif)'/>

Figure 1: Result for some values of parameters

Figure 2: Some examples with feTurbulence and feColorMatrix

Figure 3: Some examples with feTurbulence and feComponentTransfer

Tools: you can change parameters and type to see texture 
         add feComponentTransfer filter to change colors of texture
         add feColorMatrix filter to change colors of texture
         using feTurbulence and fecomposite to change picture

Examples : some examples with different values for parameters as SVG
               some examples with feComponentTransfer as SVG
               some examples with feColorMatrix as SVG
               some animations about texture
              animation with feDisplacementMap to delay text
           

FrontPage  feColorMatrix  feComponentTransfer  feSpecularLightning feDiffuseLightning  feSpotLight  feDistantLight  fePointLight  feFlood  feImage   feTurbulence   feTile  feMerge  feBlend  feComposite feGaussianBlur  feMorphology  feConvolveMatrix  feDisplacementMap  feOffset