Hi jiro - when you save to an OBJ file, MoI will convert its surface data into faceted polygon data, which is a totally different type of data than what you are working with normally inside of MoI.

You can control the density of how many facets will be created - there will be a "Meshing options" dialog that will pop up and it has a slider on it. Move the slider towards the left where it says "Fewer polygons", and that will reduce the number of points used.

But since each facet is a flat piece, if you use less of them your model will tend to get a more jagged type of appearance, if you want your result to have a smoother look it helps to use more polygons for it.

Is there any particular reason why you are so concerned about the number of points that you got in Blender? I mean is it causing you a particular problem?

- Michael