Smoothing advice? Updated

TIG

Even with all of the surfaces smoothed as much as possible it will still look faceted, because there are inner partition faces which prevent the outer skin becoming perfectly smooth...
Removing them helps... but you need to do more work...

Bryan K

Ah ha! That's certainly a huge improvement! That's really quite interesting how the inner faces have that affect. I never knew this.

More work? Sure. Do you have any tips or advice? Thanks!

ely862me

You still have some lonely and hidden edges here and there and they also cause that faceting(plus the weak shadowing sketchup engine).
Here's what I would do, I would keep about 8 profiles and I would create a mesh between them with the Curviloft plugin(the face button), nice and clean.

body geometry.jpg

Bryan K

Thanks Elesei. I used Curviloft on my seaplane model and was pleased with the results using the same technique of a few profiles and "connecting" them. However, some members here pointed out that the face count was very high and it was. But again, the results were very good.

Is that final result on the far right? If so, then that's the technique I'll use. That's exactly the amount of smoothing I'm looking for.

ely862me

It doesn't matter the faces count if you can still work easily with the model.
For your model, you exaggerated with the curves segments, you could have kept them less segmented(you know that you can change the segmentation of the arcs, when you draw them).
Yes the far right model is the model achieved with the Curviloft. Keep in mind to work the settings of Curviloft to have more or less segmentation in your mesh and also to achieve a flowing shape. I added more segmentation for mine because the profile are far enough.

I have changed the arcs on a profile and then scaled that profile to match all the others(I believe you did the same with yours- push/pull and scale?)

The result is cleaner and you can play with the curviloft's settings as you want with a wonderful result.

1.skp

Bryan K

Thanks Elesei. I'll try that and post the results in a few days. (I did not download the model, but I very much appreciate you making it available.)

Also thanks to everyone else for their help and advice!

Bryan K

Working almost prefect. Except... what the heck is that?

body geometry 3 flaw.jpg

ely862me

See the hidden geometry, most likely an edge snapped.

ely862me

There is something. If I recall well, you have there a small segment that creates a small crease throughout the body. If you remove that segment I believe it will be alright.
It doesn't matter how far the sections are it will create the same amount of segmentation.

Bryan K

@ely862me said:

See the hidden geometry, most likely an edge snapped.

Thanks Elisei. I did look at the hidden the geometry but I did not see anything obvious.

I think I may have the 2 vertical sections just slightly too far apart. I'm going to try moving them closer together and see what happens.

Bryan K

@ely862me said:

There is something. If I recall well, you have there a small segment that creates a small crease throughout the body. If you remove that segment I believe it will be alright.
It doesn't matter how far the sections are it will create the same amount of segmentation.

Cool. I'll check that. It's supposed to be a smooth transition from a curve to straight line. If it's not, then the result would make sense.