If only you knew how to read English properly, you would have seen this in the previous message and also would have been able to interpret what L&P's message said. Alas, it is what it is.
Now back to topic. I know rendering is that last thing that needs to be done. But when a lighting is setup for the entire scene, it does not look proper in each and every render because of change in angles. That's what I assume happens.
Now if L&P renders them all together, those errors remain. Once the 1st render is done he gets a very clear idea of how the lighting is, now just before rendering the next render with a different camera angle he might notice where exactly to make adjustments based on his first render and his experience. If he does render it and sees that it is not coming along right, he would make the necessary adjustments and re render it.
Just Before Rendering Or At The Time Previewing the renders he sees where the light needs adjustments he makes the changes. Now if done in batch Rendering it still doesn't change the fact that he still needs to check the renders for adjustments based on the previews. If given to someone else they would not be able to correct it. If he has to check them anyways then it doesn't make a difference whether he batch renders it or does it one by one. Infact here he checks one render and starts the render and goes to checking the next one.
And some of the experienced people of the fan art thread can definitely "shed light" here as to why he cannot do it in batches. Some of them did seem to agree with L&P's words regarding this. So you all who know the technicalities can correct me as well. And please I would require someone with more than 50h of experience on Daz minimum.
in general I am curious to know more about rendering and scene creation, so I am okay with any answers
You say you don't know. You spent 0 time trying to know and trying to see for yourself but still you call me out? Shame has no boundaries it seems.
If you don't know why are you throwing those justifications in the air for L&P instead of asking?
First of all, you can preview a render and that preview is pretty good in terms of what will show up. I could fire up daz rn, render something and post the render here and the picture of the preview and you guys would see that any blatant mistake will show up right away.
Depending on how much time you let it go, the quality varies but you can get really good previews, like close to a final render. You can see everything there, from lights to clipping issues to.. well, everything. You can preview those lights before rendering that "file" (let's call it like that).
Now, different light systems. That's all fine, it's just like a prop, and here you have 2 options to deal with this, from the top of my head. 1, you create a file for each "scene" meaning lets say you have Sophia talking with Patricia and 20 different cameras, poses, lights. You create 20 files that store those things differently and thats its, it stays saved. You don't need to render any of those but you should preview them before saving, as everyone does. And when you preview you get like 90% of what everything is going to look like. When does batch render enters the process? Now, with all files saved, you can just click batch render, add a render settings file to it (in case you want the same settings in every render, else itll use the settings in the render file) and the computer will do the rest which is, render all those 20 "scenes" and put them in a pretty nice folder for you.
That's the most basic way to do it.
There's better ones using the animations tab, for instance ,lets say you have 20 moments in the animation tab, numbered from 1 to 20 and then instead of having 20 files, each of those moments is one of those 20 files, with all the poses, light systems etc etc. It can make for a huge scene in terms of assets added but you can just write some script, or download one and then render each of those moments.
And these are just 2 ways to tackle that, I'm sure actual pros have their (much better) ways.
The point is: batch rendering has nothing to do with being able to spot mistakes or not because batch rendering is just the act of rendering the scenes in a batch. The mistakes spotting comes before that.
And if L&P needs to render in order to spot a mistake, he's either dumb and doesn't have a good process set up after 4 years, or he's deceiving you if he justifies it with that.
The second point is: stay away from conversations where you don't grasp one bit and aren't interested in knowing either, you're just interested in throwing shade.