Hi nos - MoI is not really the best tool for the job for making totally organic all melty-looking forms. A polygon modeling program using sub-d smoothing tends to be a better fit for those kinds of shapes.

Basically, MoI is more oriented towards drawing profile curves to generate your shape.

When a form is all melty all over, that can make it hard to create profile curves for it, because for a profile curve to work well it needs to strongly define the shape created from it - and something very blobby and of not distinct form is not so strongly defined by a single profile curve.

But if you can analyze your shape to determine some underlying major pieces that have transitions between them, that can help to guide you in how to construct it in MoI.

So for example in your shape here, notice how you've got some tight bends in these areas here:



When you have a tight bend like that, that implies that there is some kind of transition happening there, and if you've got a transition between different forms, you want to build those forms separately and then let the transitions be created by filleting rather than trying to directly draw those transition areas like you're attempting to do.

So for example you'd probably try to build some forms that follow the broader parts of the shape, kind of imagining them without those tight bends in them first, so build some sheets of these sections:




Right now you're trying too hard to generate a multi-formed shape that has more than one underlying form to it all in one single surface. That will tend to have a lot of issues and be difficult to control well. You've got to try to get each surface (like each sweep that you do) to try and follow just one somewhat more simple form, let them collide into each other sharply to start with and then make a rounded transition with fillets.


> respectivly what's the criteria to use the specific tools and
> are there any turorials about using moid for "organic/freeform
> shapes"?

There's not a lot of tutorials on this because it's a kind of difficult area, and getting a lot more strongly into the area where polygon modeling with sub-d smoothing just becomes a better overall tool...

But if you want to do it with MoI, the key thing will be a sort of shape analysis to determine if there are some broad underlying forms that you can focus on building first, and then add transitions by blends or fillets rather than trying to do too much all in one single surface creation command.

- Michael