coldash: Thanks for the assist, how do you clear the shader cache?
Your installation path will be different (my system is kind of screwy (rather like me)) but look in your GOG Games folder for some thing like: J:\GOG Games\No Man's Sky\GAMEDATA\SHADERCACHE. You can just rename SHADERCACHE to SHADERCACHE.bak and make a new, empty directory. I"m pretty sure NMS will recreate the directory, as well as populate the cache, but I'm just in the habit of giving it the directory as a starting point.
It's never a problem, AFAIK, to scrub the cache. It will always be rebuilt if not found; just takes a little longer on the first startup after clearing it. Recommended when making significant changes to video or a new vid driver.