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Era-Dorta / fire-modeling

Fire modeling from images
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Trouble rendering Copper fires #11

Closed dkit closed 8 years ago

dkit commented 9 years ago

I've tried different density and temperature scales and nothing would show up. Finally, after increasing the intensity to 6.6 I was able to get something to show up. But it neither emits light, nor looks quite right...

copper_fire

Temperature scale had to be set to something like this: 5000000.000 (taking a way a 0 resulted in no fire), but the density scale might have been too high. Reducing it to 50000.000 (from 5000000.000) resulted in less black holes in the flame.

copper_fire2

Removing the Ambient light and keeping all the parameters the same results in the following scene: copper_fire3

The sphere disappears and there is a hole in the flame ...

dkit commented 9 years ago

Update:

The density scale appeared to be WAY too high. Reducing it produced better results. I then started reducing the intensity and the flame disappeared. using the 1/max([RGB]) = 6.05 for the intensity (after setting it to 1), produced better results. So it turns out I wasn't that far off with 6.6. Increasing opacity to 2 produced reasonable results:

copper_fire4

The hard edge between the boundary seems a bit harsh, but it could be the angle...