admiralpotato replied to your photo:Alpha Expansion
This one is so amazingly smooth! I love it! How did you get this one so smooth?
The 256 color limit of GIF is very unforgiving for gradients, so I kept this to black and white. This gave back a lot of space for ‘mixing’ gray, which in this case is slowly reducing the alpha to zero as I scale size up. Beyond that I had to try a few various sizes to avoid banding. Outputting to PNG first and interpolating down (thanks!) helped quite a bit - I had avoided alpha as it turns into transparency on GIF. The extra bounce kept the colors intact.