Manipulation of GAN-generated image along two different physically interpretable directions. Two directions are shown—total unsigned field (TUF; top two rows) and polarity separation (PSEP; bottom three rows). The second row from the top shows the result of decoupling TUF from the direction along which R changes. The fourth row shows the result of decoupling PSEP from the direction along which polarity is flipped and the bottom row shows the result of decoupling PSEP from both a polarity flip and change in R.