in settings, lower the foliage. then you'll see better.
also, crafting a new spear shouldnt be that difficult. funny story thou. i hunt Gjaals with the special spear attack. you can imagine where my spaers go from time to time. thats why i have a couple in reserve. you can also carry 2 or 3 spears

also, if you already are in devcommands, you might as well just spawn in or craft for free a new one