Vertical Studio Headphones
A 16:9 product hero shot taken to 9:16: the original frame is kept pixel for pixel in the middle, and the studio above and below it is generated.
Wan VACE outpainting turns one master clip into other aspects by generating the missing areas instead of cutting the picture. Vertical Studio Headphones keeps the original landscape frame exactly in the middle of a 9:16 canvas; the wall, window light and curtain above and the stone step and floor below are generated to match the set and follow the slow push-in.
To make your own, give Wavemaker the clip and say what should appear beyond its edges. It places the clip, generates up to 81 frames per call at the clip's own frame rate with its sound, and continues longer shots window by window so the new areas stay consistent. When losing the edges is fine, a plain crop is faster and exact.