Hi-res printing

[krandle]

I'm new to this software and very impressed with it. I'm converting a shed into a studio and needed a drawing/design program for this one project so was very happy to find this one.
I've got my head around most of the process but don't understand how to get a hi-res print.
I've created a hi-res photo and saved it. The problem is it just saves it as a .sh3d extension which means only the software that created it can open it. Can someone help me to get to print this photo please?
Thanks
The Newbie

[hansmex]

Right-click in the 3D preview window, and a new window pops up.
Move the slider to the highest quality.
Enter the number of pixels for your image, e.g. 1920x1280 for HD.
Render the image and check if you like it.

There are many tricks and tips to improve your image quality. Look at the images and messages of forum member Cecilia to learn what is possible.

Hans