This is my first post to the forum, but everything I've found on here has been extremely helpful to me, so I figured I might try to contribute some of what I've learned too, just in case it might help someone else.
I know this is an old post, so this might have been covered somewhere else before. But what I've been able to do for high resolution images from the 3D point of view is to render a video, just as mentioned previously. However, since I don't have a good monitor, I take the images produced by FARO Scene.
What I do is just set a viewpoint of what I want to 'screenshot'. Take that one viewpoint and make it the camera path and choose an arbitrary duration for the video. Then render the video at a high resolution, making both video and images. Then just grab the image you want from the folder, and voila!
The only thing you might have to play with is the FARO watermark floating around in the video (if you have the free version). Just set the duration for several seconds. The watermark will move around, but the viewpoint stays the same...so one of the images produced will hopefully have the watermark in a decent location. And since the viewpoint isn't changing, the rendering is actually pretty quick, even at the highest resolution.