Okay, I know this sorta has been asked before but not in the way I wish nor answered the way I wish it was (if it has I have not found it yet).
I do apologize if some of this seems a bit redundant.
I have been researching standalone render engines and most of the ones I come across are not true standalone engines. By which I mean it requires something like blender or it has a proprietary format. Keyshot is proper in regards to a true standalone render engine and that is the only one I have found thusly like it albeit when you looking at sites for standalones it does not often tell you that it requires another program or a specific format. I recently got burned with indigo I admit my research was not in depth enough in that one hence why my research is a bit more in depth now. Indigo pretty much was a burn and mostly a lesson learned. You have to have blender or something similar, and it is a proprietary format. I am trying to use blender but blender is ever so slow with small files 100mbs in size and most of what I want to render will be way way bigger and I am not kidding I have to literally wait 3 or so minutes to open that 100mb file and it has no textures on it etc when it imports. That file, of course, opens in keyshot in a few seconds. Anyways besides this being annoying, this is not what was expected of a standalone render engine, keyshot is what I expect but more or slightly different.
Sorry for the long backstory.
Anyways keyshot is not that great for outdoor real sun, forest esque landscape stuff usually, it is more of a product based render engine than anything. I was wondering is there any other true standalone render engines that do not require another program as a crutch nor does it have a proprietary format to import. Preferably for dense scenes. If so are there multiple render engines like this and if so what are the best you can recommend?
Thanks in advance for any help.