Gimp 2.8 required!
This plugin produces a complex three-part drop shadow from a selected layer. Ideal for light-on-light text (or anything else).
* Super-smooth shadow algorithm
* Three customizable shadow layers (umbra, penumbra and veil)
* Works with both alpha and masks, shadows are created as masks
* All layers (including the source) are put into a separate group, so no mess created