Hello all, I did some further testing with a computer running a KeyShot Pro version, and it indeed opens OBJ and STP files with ease.

I also I have an additional question. I'm planning on designing some things in MoI to have them 3D printed, and I can see how on occasion I would take a file from MoI into ZBrush for some further sculpting prior to sending it off for 3D printing. However, I've noticed that round surfaces are "faceted" or are showing "ribs" once opened in ZBrush. When I open the same file directly in KeyShot without going through ZBrush, this "ribbing" effect doesn't happen, and the surface is perfectly smooth. (I attached a screenshot of the "ribs" in 2 different colours and B&W.)
When I try to increase the number of polygons by subdividing the model in ZBrush, it screws up the model and becomes unworkable (see attachment). Is there a way to prevent the ribbing from happening, but perhaps more important is the question if this "ribbed" model is of lower quality than the original MoI model, or if it just "a visual thing". It's important for me to know in relation to 3D printing, as I would have to think carefully about what I'd create in ZBrush and what I'd create in MoI.

Regarding the meshing options when exporting my model as an OBJ: am I correct in saying that ticking "weld vertices along edges" and putting a low value in the "angle" and "divide larger than" fields will give me the best result? Sorry, but I'm quite new to this.
Also, am I correct in saying that a value of 1 in both these fields is the lowest value that MoI will process? I tried putting in lower values but it doesn't seem to make a difference.

I also realized I can't create something in ZBrush and then open it in MoI. Someone told me that in MoI v4 this might be an option, is that correct?

Many thanks in advance,

Eric
Melbourne, Australia