Hey, thanks again for your help beppe, here's the finished product:

https://www.instagram.com/p/BKiE4Y4AKjC/

edit: As I'm posting that, I realize that the instagram potato quality defeats the purpose of a high sample render, but I'll be using the full HD render for a more longform video project.

Hey Beppe,

I have tried the DL None mode, BUT I did not think to turn off cast lighting on the emitters, great idea.

It looks like that did the trick and it cut the render time in half, so I can effectively double the samples for Direct Lighting.

Thanks a lot, that's exactly the suggestion I was ...

Hey All,

I have a 500+ frame animation I'm going to render (1920x1080):

test_render.jpg

that is basically just some light emitting objects reflecting in a specular object.

This one took 9 minutes.

Here are my render settings (I have fake shadows on as well):

settings.jpg

The issue I'm ...

All methods previously suggested are meant to take care of the symptoms, but never really cure the actual problem most users have with photometric lighting.
Try to light the room REALLY brightly and very evenly, don't leave a single spot unlit.

Then, use the exposure to achieve the light mood you ...

Hey Bepeg4d, thanks for the reply.

After some digging, it looks like modifying the Ray Epsilon value almost entirely solved the issue (perhaps the rays were not permeating enough?).

But, when reviewing the scene, I found it ultimately to be a geo fighting issue, and my solution was to make some ...

Any ideas on why this is happening?

https://i.imgur.com/uUga6Xm.gif

Some info on this, hopefully it helps track down what is happening:

This is a simple Octa platonic that I'm using an explosion FX object on to get it to shatter like that.

The object is being lit indirectly with GI.

I'm ...