Am I right in that there’s no render history like with the Vray frame buffer? also, no render region? I use those features constantly so might be a problem.
Although I gather the interactive render is quite fast in terms of doing without the region render.
I am still using my solution, which is binding Shift+R to “edit render region” in Max, so I just quickly tap it and adjust the region, and it just works. It also works in the interactive mode, though usually you will need to move camera, or do some other small adjustment to see its effect.
Render selected is another option.
And there is also support for blowup rendering in regular and interactive mode.
It’s not 100perc. well integrated (I can’t get Interactive to work in it,etc..) but it’s pretty damn nice plugin, and it’s miles above Corona’s buffer.
I see you mention VFB+ a fair bit and some others. When using it, can you disable corona’s frame buffer? and does it still work well with doing batch renderings etc in terms of intergration with max and corona.
In Corona settings you decide which framebuffer you use (by selecting it, you automatically disable/switch from the other), VFB+ is extension of classic default from 3dsMax. Integration seems fine so far, it’s free to try