Omega on paper

Here we use feTurbulence to create a wrinkled paper effect. Skip to output

svgR(wh=c(800,200),  
  rect(xy=c(0,0),wh=c(500,200), 
    filter=filter( 
      feDiffuseLighting( lighting.color="lightbrown",surfaceScale=2, result="diffLight",
        feDistantLight(azimuth=45, elevation=35),
        in1=feTurbulence(  type="fractalNoise", baseFrequency=0.1, numOctaves=5, result="noise",
            in1="SourceGraphic"
        )
      )             
    )     
  ),
  text( 
    paste("Omega:", mathSymbol("\\Omega")),xy=c(20,130), 
     stroke="none",stroke.width=1, font.size=100, font.weight="bold", fill="#555522", opacity=0.4
  )     
)