Corona should not work that way... If there is some significant freezing when using Interactive, then report it as bug and provide a scene to reproduce it. The main point of interactive rendering is being interactive. If it requires user to manually keep pausing it, then it's not longer interactive, and is not much different to regular non-interactive F9 key smashing :)
Yea sure that is true but when working with a heavy scene it can still take several seconds to restart the rendering process, when moving the viewport for example. Selecting and moving objects takes a few seconds as well. With lighter scene's this is not the case but interior scene's quickly get into millions of polygons. What I would like see is an option to keep the interactive render window open (in a viewport slot preferably, like I have now) and be able to pause it and to work on my scene fluently and then quicly start the render again. I don't want the window refreshing every time I move something or move the viewport a bit.
The problem now is that it takes 20 sec to start the interactive preview, if I would like to pause it from being less responsive I would have to stop the interactive window and then when I want to quickly start the preview again I would have to wait 20 sec again. This is not a bug, it's just a heavy scene to work with.
I hope this is a clear explanation of what I mean.
