I was just wondering if there is a straight forward way to mask and render out a small section of a model, without having to zoom in. I've been rendering quite complicated interiors with very specific lighting/ reflected surfaces etc, at reasonably high res, followed by a fair amount of photoshop tweaking. I want to be able to replace small details (using photoshop), but without changing the camera angle, but don't want to have to re-render the whole thing every time.
I don't much fancy having to hide all the out-of-view components (as suggested in a previous post), as this will effect the appearance of light/shadow on the in-view area.
This seems to me like it would be quite a common requirement no?
Thanks in advance for suggestions,