>>930130
It was probably a few hundred MB or so. My PC only had 768 MB RAM so the textures couldn't have been too big or I couldn't render it (I did use HDD swap a lot back then, I couldn't imagine doing that at all now even with SSD, just too slow). I used image files from NASA; they had images of global cloud cover, height map, surface reflectivity, nighttime lights, and such. I did a search just now and they still host images like that
https://visibleearth.nasa.gov/collection/1484/blue-marble