CGTalk - Loft NURBS question

Kirl

07-08-2003, 10:52 PM

I 'filled' a bottle made with Loft NURBS by copying the inside and placing it in another Loft NURBS, but when I try to add the surface tension -in the neck- by adding some other splines the general shape below -in the middle- deforms very slightly but enough to be noticable.

Any idea to prevent this from hapening without making it linear interpolation...?

Or possibly another method for making the surface tension at the edges...?

JamesMK

07-08-2003, 11:36 PM

If I understand your setup correctly - - - I guess it should suffice if you simply add another one or two splines really close together as well as close to the outmost/upmost spline

JamesMK

07-08-2003, 11:43 PM

Or, even better perhaps:::...

Give the "filling" a convex fillet cap with a reasonable radius and quite a lot of steps - then convert to editable mesh, scale the "rounding"-object to Y = -1, then move the "cap"-object downwards until it matches the sunken edge of the Y-flipped rounding. Optimise to remove doubled vertices...

The only problem is the regular grid-setting... Hmm...

JamesMK

07-09-2003, 12:30 AM

Made a quick test with the Y-flipped rounding... I did not switch on 'regular grid' though, just optimised and threw the result into a hypernurb... Please ignore the crappy textures and the fact that there is no container surrounding the water :D

Kirl

07-10-2003, 08:43 AM

Looks good, I'll try that. Thanks...

ember

07-10-2003, 09:21 AM

Why not just Lathe a profile spline?

Kirl

07-10-2003, 04:21 PM

Because this saves me the trouble of tracing the inside of the bottle with a spline... :)

ember

07-10-2003, 04:38 PM

I suppose so, but I would have also created the bottle using the Lathe method!.....

Kirl

07-10-2003, 05:44 PM

That wouldn't work as I needed several diffrent kinds of revolving shapes as well (coke bottle).

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