This free add-on lets you:
- convert the Ctrl+B render region to the camera’s frame itself (a “camera region”)
- store and access as many of these regions as you want in a camera’s properties
- place a region render result back into the original frame (if you want to)
It is mostly there to address the issue that network rendering tools and renderfarms don’t support region rendering when splitting individual frames. This add-on solves that problem for all of them.
Download it on Gitlab
Watch the tutorial
For the dinosaurs there is a version for Blender 2.7x
The 2.7x version has a feature for splitting the frame in a grid to enable distributed single-frame rendering in any renderfarm software that doesn’t support it natively. This feature has not been included to the 2.8 version for lack of a demand for such a feature. However, feel free to tell me if you would have a use for it.