Map filters use an object named map to modify an image: you map the image to the object. So, you can create 3D effects by mapping your image to another previously embossed image („Bumpmap“ Filter) or to a sphere („Map Object“ filter). You can also map a part of the image elsewhere into the same image („Illusion“ and „Tile Seamless“ filters), bend a text along a curve („Displace“ filter)...