I have this reccuring problem when modelling bottles - lot of them have flat label area like one on the picture and the transition to it is very smooth. I can’t figure out how to do it. I’ve tried rectangular-ish bottom, cutting swept solid and then blending surfaces between it and the cirle top that it needs to have but the blend had some wrinkles. Also tried cutting the area that needs to be flat in bottle’s solid and then sweeping flat line along the edges that the cut created and it looked ok except the edge was was sharp and couldn’t be filleted.
What should I do?
Try sketching section profile curves and sweeping / loft between them.
Maybe not how I’d model it but just wanted to show you that you can get shape very quickly with section curves & lofts. This isn’t Rhino but same principle applies.
Random internet tutorial:
And then look at some surface modelling tutorials.
How dare you 
Ok, this works kind of good for me (I know I have some homework when it comes to learning surface modelling). Which command in rhino would you use for that? I did network surface but the result has a lot of isocurves which I’m guessing isn’t very good.
Can try doing one section at a time.
doesn’t it curve weirdly between the top two sections here? I’ve tried sweeping but couldn’t get a nice transition between those two so far network srf looks best
@Lagom thanks! I’ll definitely look into those resources