This is difficult since you don't show me what you have or what you get.

I'm not taking your word for it. I can show you dozens of images where you see absolutely nothing yet there is an entire picture full of detail.

What do you mean you cut out the luminous pieces and pasted them on a white background? Are you suggesting you think you can see something with an alpha of .01 or less?

Did you set Ambient_Value = 50? What did you see?

Believe me, there's something you are not telling and you're relying on your understanding of what to show, what to try, what to look at, but that hasn't got you anywhere has it? You need to do the tests I said.

When you render with Diffuse_Value = 0 Specular_Value = 0 Discplacement = 0 and your Ambient_Value = 50 and you save as JPEG at 75% or higher quality, I will be able to see what is happening.

Look - you can let me figure this out, or you can study image math with me for a few weeks. Take your pick, but so far you've made no progress and I would have this solved already. Your best bet to figure this out in a few hours is to do what I ask.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)