Five ways to get b-roll from one ride — all on a local GPU
B-roll is the cutaway footage that makes an edit breathe — and onboard POV footage from a single camera has none. I tried five ways to manufacture it from one ATV ride: CV auto-mining of the real footage, generative stills (SDXL-Turbo → RealVisXL img2img), AI Ken Burns via Depth-Anything-V2 parallax, true generated motion via Stable Video Diffusion, and optical-flow slow-motion. All local on a 12 GB card. Here's what each is good for, and the gotchas.