v.applyalpha v.applyalpha permanently applies the alpha channel to the stream. v.applyalpha permanently applies the alpha channel to the stream. Zeroes in the alpha channel produce black in the output channel. 255 in the alpha channel reproduces the pixel at that location. Values in the alpha channel between 1 and 254 result in output pixels which are scaled between black and the pixel values by multiplying the pixels by the alpha channel value divided by 255.

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