Hi Seb, well probably the best place to start is to watch the video tutorials here:
http://moi3d.com/2.0/docs/tutorials.htm
Those go through step by step creating a few different simple models, and those are a good introduction to the overall NURBS modeling strategy. You'll see it's a fairly different process than poly modeling - in NURBS modeling you generally focus on drawing curves, then creating some base shapes from those curves by extrusion, revolution, sweeping or whatever to make solids, then you can combine solids together or cut holes in them by boolean operations and use fillets to round out junctures.
So one of the main differences is that in NURBS modeling booleans are a primary method to use for construction.
Some other resources are the help file, especially read the introduction section:
http://moi3d.com/2.0/docs/moi_help.htm
And there are links to other tutorials and various stuff here:
http://moi3d.com/resources
One thing that seems pretty common for people coming from a poly modeling background is to have some tendency to build shapes trying to surface things directly to some kind of complex boundary, rather than building an initially larger extended and more simple surface and then trimming that surface to produce the final complex boundary instead.
See some of these previous discussions for some more on that particular tendency with various examples that people have asked about:
http://moi3d.com/forum/index.php?webtag=MOI&msg=4640.4
http://moi3d.com/forum/index.php?webtag=MOI&msg=4657.11
http://moi3d.com/forum/index.php?webtag=MOI&msg=4751.13
http://moi3d.com/forum/index.php?webtag=MOI&msg=3855.7
http://moi3d.com/forum/index.php?webtag=MOI&msg=3321.17
http://moi3d.com/forum/index.php?webtag=MOI&msg=3105.7
It is overall a very different workflow than doing poly modeling, but it works very well for building man-made mechanical type objects very quickly and also accurately.
When you are working on models that are more organic and not very well defined by 2D profile curves, then those are the types of things that are better suited for poly modeling instead.
Hope this helps!
- Michael |
