High resolution terrain and aerial in SketchUp SketchUp Skelion Extension. High Rez Aerial with Location Selected Sizes: 150 × 150 / 300 × 137 / 768 × 351 / 1,024 × 468 / 540 × 540 / 380 × 210 / 408 × 260 / 45 × 45 / 1,280 × 585