Just to add to Saki post.
I started creating a new character in blender without paying a dime (I just didnt wanted to spend money on learning a program as a hobby, not knowing how long I would be interested in it) a couple weeks ago, and should finish somewhere next week. I had some background in 3d programs from architectural view, but not much from character creating. This was my workflow/assets/tutorials followed. Its a bit long, but if creating characters is your goal, its a good base to start with.
I started with a Daz3d genesis8 base model. its pretty common to use that as a base model. Just going through some of the assets on the sites linked above, most of them seem to start with the same model. I followed a tutorial on how to import it, but honestly all you need to know from what was like a 30 min video was this:
Install DAZ, open it, load up the base genesis8 model (Left side click figures, genesis 8 starter essentials, figures again, generic 8 basic model), remove the eyelashes as they dont export nicely (right side open the genesis 8 female or male layer, and right click genesis 8 eyelashes and just remove then), change the resolution from HD to basic or the export mesh will be to large in blender (parameters at the right side, scroll down to resolution level), and then export it as an obj (make sure the axes are corresponding)
Import it and now you can start making your character. I would look up some basic meshing tutorial online (there are ton of them) to get the basics understanding. Some personal tips: Put on x-mirror why you are in edit in the tools (shortcut N), and add a subdivision modifier (look it up how to if you don't) to make your mesh look more smoother. I personal cut the model into pieces, which isnt completely necessary but can help if you got an old pc.
I created the genetelia myself, but I would highly advice you just to copy one from one of the free models on Sakis post. I didnt knew that site exited
After that I created the face stuff, like hair, eyelashes, and eyebrows. I deleted and created new eyes as well, but I dont know if thats really needed.
I followed this tutorial for the hair:
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And this one for the eyes (its really fast and I struggled to understand it, but the result is great and everything he uses is free and linked under the video):
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. Transparency settings has slightly changed in 2.8, and requires you to change the blend and shadow mode to alpha clip for both the eyes and the iris material, in the material settings of the eyes, and enabling screen space refraction for the eyes material as well in the same settings.
After that I start sculpting in the small details (like wrinkles, pores, scars, pimples, etc. Very small details), which is required for texturing. To do this copy your whole mesh (not the eyes, hair, etc, just the base mesh), apply the subdivision modifier, go to edit mode, select everything and subdivide it a couple times so you get a stupid amount of faces. After that go to sculpt mode, and start sculpting. I would just look up some sclupting tutorials, which goes over all the basics. (I didn't really used any particular one, just picked up some stuff from all of them)
Then texturing the skin. I used this tutorial for this:
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. It requires you to have a low poly mesh, and an high poly sculpted one. Just follow the tutorial, its very clear and has great results in my opinion.
After that its rigging time. I think there is a way to export bones from Daz3d for the body, but honestly rigging the body is easy and pretty fast in blender. Just follow this tutorial:
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. The addon used in that tutorial has been updated in 2.8 to include face bones, but they dont really work at the moment so remove them.
Face rigging is a completely different story though, and its prob the hardest part to do. I'm halfway through this, following part 15, 16, and 17 of the same tutorial used for the body rigging.
And that's it for a naked, fully textured, fully rigged character. I havent started with clothes though, which properly takes much longer then I hope it does
.
Edit: this doesn't take several weeks btw, I fucked around a lot, especially early on. I think if I streamline everything, I would be able to do in 30-40 hours. And if I understand how blender works, you can somewhat easily just change the mesh to a completely new character, as long as you don't add or remove parts (just change the shape of your existing mesh)