@RIL wrote:
Hi all,
I'm new to drawing NURBS. starting up with the AK3D tutorial book (Audi R8). I find it OK to draw the "curve net cages" etc., but I'm having problems with the matching together of the surfaces. In short: I keep getting glitches. So the question is, what am I doing wrong?
Follows some more details and some screenshots:
Curves are OK
What I did so far was managing to draw "water tight" curve nets, so I can draw valid surfaces everywhere in the web of curves. I also succeded "matching" most surfaces, using G0, G1 or G2 as described in the tutorial (like Tangencies, Curvatures with and without Averaging etc).Zebra Check
I also "lifted" (corrected) the surface edges back to the curves where they tended to drift away from the edge curves, especially when using "Curvatures & Averaging", and then matching the surfaces back again.I've used Zebra to check the result, and so on, and so on.
Tutorial workflow
But as said, I still keep getting glitches in the surfaces, no matter how many rounds I've tried to correct by going through the workflow mentioned above (as also described in the tutorial). Glitches here and glitches there and glitches everywhere.Tolerances
I had set tolerance 0.0001 millimeters in Units, and I tried to lower it to 0.001, but still those sticky glitches, see fig 3 below:Any ideas what I'm doing wrong?
// Rolf
Fig 1.
Fig 2.
Fig 3
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