Michael
Thanks,Those hiding problems were not related to something being hiden at the time of saving, and the faces not displaying were identical copies of others which did display properly.
Verry odd. (And I was able to repeat the problem, in another working file, with both iges and 3dm but, in all tries, obj was fine.) See next.

Steve,
Both those settings for LWO and 3DS came up beautifully in Carrara. The LWO size was 11.4mb and the 3ds 9.32mb
Either, with those settings, will be my choice from now on.
Great! Thanks
Brian

Hi Brian,

> (And I was able to repeat the problem, in another working file,
> with both iges and 3dm but, in all tries, obj was fine.) See next.

Right - when you export iges or 3dm, it means that you are relying on Carrara to do the conversion from NURBS to a polygon mesh.

When you export .obj, you are using MoI to do the conversion from NURBS to a polygon mesh.

When you are using the iges or 3dm route and relying on Carrara to the meshing, if something does not come through and cannot be displayed as shaded, it likely means that Carrara has run into a problem in the mesh conversion process, which is not a simple process and takes a lot of effort to make more robust.

What did the Carrara programmers say to you when you sent the iges and 3dm files in to them as a bug report?

- Michael

Thanks Michael.
There are several file types in Carrara that are quite a few versions behind the those currently in use.
A long story.
With the DAZ ownership the direct daily contact we used to have with the Eovia programmers has been lost.
(A lot of stuff still in the Daz--too hard-- file I think?)

Steves ideas are great in enabling a good small file. Everyday a new learning experience!
Brian

http://forum.daz3d.com/viewtopic.php?t=84066&sid=02ae9cfbdaf5abf5b53d5026c003a1ed

Just so you know I am doing my bit.
Brian

I really like the way your boat looks just with the planking the way it is already...

Thanks Michael.
When you have actually built a planked boat the "wrongness" stands out a mile. As Steve said, all 3d people should stick with fiberglass hulls!

Steve.
Any comments on the Meshing options settings shown on the jpeg please.

Brian

Steve, you also asked about the boat in water.
Here is a quick rough render with the hull having a painted/fiberglass finish.
Brian

very nice work on the boat, You've inspired me to go take some photos of my fathers Cutter and model it.

That makes all I did worthwhile.
Have fun.
Brian

Hi Brian,

>>>Any comments on the Meshing options settings shown on the jpeg please.

That is a setting that I do use on quite a lot of models, as it gives the output I want in most cases. But, having a look at the model of the boat, certainly the lofts, then I would follow a different path. Let me explain:-

First, the lofts are not very good (those posted with the tutorial), and I can see the intention of the creator of those, using Rhino with "RebuildSrf" which will perform smoothing on the lofted hull. As this option is not available within MoI, and manually rebuilding the lofts could be a pain, I would only make some slight modifications to the lofts, mainly aligning the base control points so I can mirror and join, then loft the hull as one piece, that part of the boat I would output with an high default meshing angle, as example 30 deg. This then outputs the hull with low poly, then importing into a poly program will allow that program more room for better control of a subdivide smoothing surface (and keep the final poly count down to a minimal)

So basically, the hull output (at 30 deg) would look like (this is only the main lofts aligned/joined):-



Then make smoothing in poly program will give good results with minimal added poly






- manz

Hi Brian,

>>Here is a quick rough render with the hull having a painted/fiberglass finish.

Looking very good.

As Michael stated, the texture before did look good,..... just not (to me) like wooden planking, maybe all that was needed was to tile the texture?

Keep up the good work, I am looking forward to seeing the sails and the boat on open water.


- manz

Hi Brian,

>>That makes all I did worthwhile.

I have been following the thread with great interest. I have never modeled a sailing boat, but do feel like building one now.
The only hulls I usually build (for hobby) are spaceship hulls (I am a bit of a sci-fi fan, since the first episode of startrek back in 65) but, certainly off topic.

I have found some plans of a sailing boat I downloaded a while ago (cant even remember where from), I do now feel like building that model, although there are no photos, and the plans are hand drawn, I do now, after seeing your model, feel like attempting to build that. Would you be willing to help me with it (not on how it should be built in MoI, but how it should look) , as there are some gaps in the plans/blueprints, and boats are not something I know much about.

- manz

It's funny to make hull form in moi : you can move the points for search cool forms :)

Thanks Steve.
Most of the various settings that can be made are not in my field of understanding.
Is there anywhere in the MoI information that would clarify those for me?

Pilou/Steve
Forget about the sails, now I just HAVE to experiment with the Pilou method.
See what I can get with that particular boat today?

Brian

Hi Guys,

Just poked my nose in on this discussion and I remember seeing this solidworks tute on modeling a boat hull, the method is
very MoI friendly. Hope this helps.

http://www.archive.org/details/BenEadieBoatHullLOftinginSolidWorks
video download on the left hand side of the page.

Cheers
Danny

Thanks Danny, thats a nice straightforward tute.

I have just been doing a cleanup of my folders and apps (again!), where do all these things come from, am I to take the blame?

Anyway, I came accross several boat building Pdf's in an odd folder--why they were saved there????---that I had forgotten about.
I guess I have hours of frustration ahead of me!

The images are sample from those pdf's

Hi Brian,

>>>I just HAVE to experiment with the Pilou method.

Construction as with pushing/pulling control points can appear an easy route, but it can add its own problems with good smoothing.

I have been looking at a boat construction with using cross_sections, but that again can cause some problems unless the cross_sections are very accurate.

I have now decided to simply construct with curves/sweeps, really just a guess, but I then have no problems with smoothing. A very quick example is a rowing boat I have just made (it only took a few minutes).




I will expand on this to create something bigger.


- manz

Another method some rustic :)
Move verticaly A and resize it then make boolean diff ;)


the file 3dm
http://moi3d.com/forum/get_attachment.php?webtag=MOI_FRANCAIS&hash=37506b0824b2e108f33b8cdf06902f16&filename=barque0.zip

Placed in the memory file.
Thanks

For resize something in the case of the previous boat
Call Scale transform, draw an helper line on the boat's axe from clic to the brow to clic the poop
so you obtain the middle's boat axe = first click of the Scale, then second click of the Scale inside the boat on the the axe's helper or enter a % of reduction ;)