BoxMaker utilizes the OpenGL library which is supported by most PC graphics cards. This library is very rich with 3D image manipulation functions and optimized to work directly with video memory. This makes it possible to do intensive three-dimensional image manipulation with minimum processor load, producing impressive 3D images with minimum effort. The disadvantage is that when capturing the image into a file, the preview window must be clearly visible on screen. If the preview window is partly off-screen or crammed behind a toolbar, the result will be partial of cluttered with junk.
In BoxMaker the preview window is the rectangle on the right surrounded by ocean blue. The rectangle has the selected background color. By default, the selected background color is white.
The example below was created with the application on the bottom right of the screen:
As you can see, the right part of the image is not shown (black) and the lower part is filled with junk.