v.lumakey single stream: dissolve between stream 1 and stream 2 dual stream: use stream 3 to determine the mix between stream 1 and stream 2 on a pixel-by-pixel basis single stream: dissolve between stream 1 and stream 2 dual stream: use stream 3 to determine the mix between stream 1 and stream 2 on a pixel-by-pixel basis v.lumakey allows you to dissolve between two images. The dissolve can be on a pixel-by-pixel basis (using a third stream) or it can be defined globally by an int or float. v.lumakey will operate on alpha channels (if they exist) by default. The alpha channel does not affect the lumakey itself.

from the library : softVNS Format : External Environment : jitter / max commercial Max 4.x http://homepage.mac.com/davidrokeby/softVNS.html