So this seems to be an essential skill in blender when you sculpted something and it has to many vertices. I have tried to figure it out but all my attempts have either taken days to do some or ended in it still having way to many points. I have tried watching videos but the people doing just start doing it without without explaining anything and I can't seem to copy them just by visuals only I'm also heavily auditory. So can you guys give me a few some tips or point me somewhere that can help me? And please don't just type retopology into google or Youtube and post the first video that comes up. I tried that many times, so please make sure they are good first or you have used them before.
Maybe you don't say enough about what your object looks like. Also, retopology is not the same as simplifying a mesh with deleting edge loops etc. But if you're talking about retopology, here is the basic way to begin in my opinion:
- Create a plane over the high-poly object you are supposed to retopologize. This plane will be your low-poly version.
- If your high-poly is symmetrical, give your low-poly a Mirror modifier. Enable the Clipping option.
- On the horizontal menu bar, disable the Limit Selection to Visible option, enable the Snap, choose the Face mode, enable all the snap options.
- Begin to move the vertices of your plane, you'll see that they will stick to the high-poly surface. Extrude edges, try to follow the main shapes and angles of the high-poly. About good topology and topology tricks, you can find some good advices here, it would take too long to summarize everything here.
There's a modifier for this. It's called Decimate. You'll might have to use either Collapse mode or Planar mode because Un-Subdivide only works on quads. Let me know if this still doesn't solve your problem.
As far as I know, the best way to make retopology with Blender is RetopoFlow, an awesome addon capable of turn such a boring task into something that's almost fun.
You can buy the addon on Blendermarket and support the developers or download it for free on GitHub.
By the way, it's not a big deal but currently there isn't a 2.80 compatible version so you have to go with Blender 2.79 if you choose to retopo with RetopoFlow.