So I’ve done a bunch of Kyle’s SubD tutorials and they all came out great. Applying the methods to my own projects is more difficult. e.g. I asked about modeling this spiral architectural detail recently in this thread. Thoughts on modeling this spiraling architectural piece? - #4 by DiegoKrause RTK responded that it could be done in 20 minutes in SubD. I figured I’d try it but got no where.
I’m at it again and barely get to the basic shape before I see oddities. (see pic) As Kyle says, you can see the bad bits in box mode, and it usually easy to see where control points overlap or such problems. Can’t see what’s wrong here. Also there need to be crease in those corners. Adding on really messes thing up more. And this is before I attempt the actual spiral part.
the angle of that quad is folded back on itself…so you are seeing a render mesh triangle showing outside the part.
remember rule of 3, if you need tight corners, you need 3 points or edges close together. (or crease, but I’m not a fan of creases unless its a specific situation)
do you have an image of what you are trying to make?
I always start with too many faces, so thought I’d try fewer this time as that seems to be the accepted good practice. Hard to know how to calculate that.
I’d layout exactly as it looks, let it overlap as it travels in the z (assuming we are looking at it from top view) and then extrude edges straight down, convert to nurbs and trim to clean it up at the end. (keep a subd copy for future iteration)
This is making me feel like a moron. Even with your model, I’m really not getting it. Did you start with curves, or a SubD plane formed to the outline?
