SteveNelson46 wrote:..........The bottom line is that if you are using a low powered computer you cannot create models at a lower resolution and then increase it later.
You cannot do that if you are using a higher powered computer either. But I think I know what you were getting at. . . .
For most modeling that does not include sculpting the real trick is to keep the vectors used to create the model no matter what the resolution. That way if you need a large scale version of the model later which demands higher rez the vectors can be imported at the new rez and the model recreated. Given the terabytes of storage we all have these days I seen no reason to delete something to "save space". This technique also depends on keeping things organized so that they can be understood later.
And yup, for complex models that is definitely not an optimum solution. I like to think of models the same way I think of pictures, if you have a low rez pic there is no magic way to make it into a high rez pic with more detail. Yes, you can increase the rez, but that does not add detail that was never there in the first place.