I would like to export this view port in hidden line but the area it renders is truncated for some reason. When I update the viewport for example with Renderworks as background render and hidden line as foreground render, the Renderworks fills the whole viewport, whereas the hidden line only on part. Ive attached a screen shot of the view port.
Ive noticed in the model when moving around in Open GL that it seems to be cutting through objects, almost like a section, which I have not really experienced before, so may be related.