"Added save/load functionality to the lightmix tab" - well, that's definitely a good start )) Tested it a little, well, it makes life easier already, still, I think, it could benefit from a few things if it is possible to add\make those :
1 - Post settings should be saved along with the lighmix's presets - exposure, tonemapping and no less important white balance temperature. To alleviate the possibility of differences in brightness and sampling in different renders of the same scene, Corona should probably ignore the settings of exposure and tonemapping saved\active for lightmix element while doing it's initial pre render MSI stuff, and only use the ones' set up for beauty pass or more specifically in render setup or camera mods. How to do that ? I'm not entirely sure but maybe loading those presets only when lightmix element is active\selected in vfb could work. Probably Corona does that already but, for now, post setting are not saveable\loadable so it can be a big thing if you decide to add this functionality - imagine the difference in sampling when one accidentally renders the scene set up for a daylight with a night lighting preset active - that could be a mess when one changes it back to daylight during or after the render, so this thought crossed my mind and I decided to share it too ))
2 - Perhaps it would be better if those presets could be saved in some internal scene's settings\helper (not sure how that works in other cases of saved values for other things in max) rather than in separate preset files - those work too but might produce quite a lot of confusion with scenes undergoing some changes as development\design goes on and new lighmix elements are added, deleted or lamps\lights contained within are changed. So if those could be stored internally with the scene that could be much more easier to manage, plus I don't see any possible usage scenario for loading those for different scenes akin to render presets.
3 - If 2 could be done or maybe even if it couldn't be - some sort of window with a list or dropdown menu for quick selection, loading, saving and updating of already saved presets would surely be welcome - it could reside at the bottom of the lighmix tab and be there always - thus added scrolling of the lighmix elements wouldn't move it.
Those are my thoughts on that matter.
Another thing - strangely enough but in my case 27 09 build is ram hungry again, maybe that's again something on my end but the scene which rendered yesterday using less than 19gigs of ram today wants 27 and more from the same cameras\views thus making my 24gig DR nodes completely useless - nothing changed within the scene itself but this behavior is not new for me as I experienced it before. All I did is to install some software which came with some C++ redistributables which were installed along - may that be the case, and if it is could you recommend the right C++ version which is Corona compiled for\expects to use ? Or maybe that's something completely different or even intended - please let me know if it is as it is driving me nuts more than usual ))
