Hi Marek,
> What I miss a little is lack of some CAD like features for
> instance snap to parallel or perpendicular to the previous
> segment for Polyline
Actually all these features are in there - for this one you use construction lines, the link that Steve posted has a lot of information about them and they are also covered in those video tutorials as well.
I highly recommend watching the video tutorials as they will give you a good overall introduction to how MoI works, they are available here:
http://moi3d.com/2.0/docs/tutorials.htm
But basically the way construction lines work is that anytime you are in a drawing command instead of just clicking the mouse to set a point you can instead hold down the mouse button and drag which then creates a construction line.
Here's a demo where I am drawing a polyline and then I create a construction line at the midpoint of the first polyline segment:
You can create a parallel line by creating a line and then relocating it to where you want the parallel line to go through, see the link Steve posted for the menu that has the relocate option on it.
> or x, y or z coordinates.
When you are drawing, if you want a point to go to a specific x,y,z coordinate, just type in your coordinate and push Enter and it will go there.
You will see your keystrokes go into the XYZ coordinate entry box in the bottom toolbar here:
You can also enter things like relative coordinates from the last point or polar coordinates, for more information see the help file here:
http://moi3d.com/2.0/docs/moi_command_reference1.htm#__XYZ%20/%20Distance%20/%20Angle
> And of course, say *.obj export to Kerkythea renderer.
Yup, OBJ files are supported, they will show up as one of the file types listed in the standard file save dialog.
Just do a Save As or Export - Export will write only the selected objects to the file, while "Save As" writes the whole model regardless of selection.
- Michael
