The HelpSetMaker fade effect summary 

The concepts 

The layer masks will be the most important tool for our fade effect: the grey value of each pixel in the "mask painting" defines the opaqueness of the original layer content. A white pixel in the mask means "totally opaque", a black pixel is for "completely transparent". Shades of grey define any level of semi-opaqueness: The darker, the more transparent.

steps summary 

  • add a layer mask to the picture layer
  • shape a mask which leaves only the parts we are interested in
  • apply the IIR-Gaussian blur smoothing filter to the mask
  • export the image

documented on: 2004.10.07