Storing exact location of camera and size of viewport

[klimek]

I'd like to over time do multiple renderings and overlay them pixel-exact. For that, I'd like to store the exact camera location and viewport size.

I can store the camera point, but that will always be relative to the currently selected item, so I have to remember which item I used before loading the camera point. While that is a bit annoying, I can still handle it.

Next comes the view port - it looks like I have to resize the window to the exact size I had it to get the same rendering pixel-wise.

Overall, is there a way to store the exact camera and view port to be able to redo renderings pixel-exactly?
Thanks for any help!

[Daniels118]

Use the virtual visitor mode to make the camera position unrelated from the selection.
When rendering change the proportions (not resolution) from viewport to a fixed one (eg. 4:3).

[klimek]

Thanks for the detailed instructions, that's super helpful!

[klimek]

Ok, that doesn't work - now when I render I see the ceiling of the floor that's visible, which is not what I want - is there an easy way to switch off the ceilings in rendering when in Virtual Visitor mode? I haven't found anything yet searching the forums.

[klimek]

Ok, answering my own question:
I can switch off the ceiling for all rooms on the floor I want to render, then it works. That's a bit annoying, but works, I guess.