Load render results in C++

[jdent02]

Move loading of render results into C++. This could also allow for a return of tile highlighting to the render process.

• Determine how to access Blender render results through C++

• Determine best way to perform tile highlighting. For multipass rendering: keep a copy of the previous pass so it can be swapped in if render is cancelled.

[povmaniaco]

I have seen this proposal a few days ago and it seems to me a very interesting topic that could even be proposed to the developers of Blender. At least so that they can guide us in the process.
Since years, in YafaRay, and then in my personal fork, TheBounty, we have python bindings for the final render on the screen, which includes the 'tile render' mode. TheBounty bindings
I'm working on adapting that code for the interactive rendering mode, but my available time is limited and my progress is slow.
The Python interface of this code is here: Exporter..
They are bindings created with SWIG, but I guess they could be adapted to any other wrapper ( pybind, boost..)
I hope you find it useful..
Greetings.