so far, I've been using this command:

Code: Select all

`convert -size '1280x720' gradient: -function Polynomial -4,4,0 -evaluate Pow 0.9 gradient_test_01.jpg`

changing `gradient:` from default to have 'none' always makes the image black

does anyone know how I could make it black-transparent-black, or possibly any alternative ways to make such a gradient? I would also like to have some minor control over how far the 'transparent' part spreads out, which i can kind of do with the Polynomial coefficients

thanks!