Just make sure you define what you mean by "-bit". 8 bits per pixel (bpp) = 256 colors. 8 bits per channel (bpc) = 16 million colors = 24 bpp color (8 bpp red, 8 bpp green, 8 bpp blue) or 32 bpp if you add alpha channel. 16 bits per pixel = 65,556 colors. 16 bits per channel = a lot of fucking colors = 48 bpp color. Used…
32 bit is what I commonly use for exporting heightmaps from World Machine to use in Unreal for a landscape or in Unity on terrain. It makes it look smoother and more accurate.