Page 2 of 2

Re: Turbulence FD with Octane Tag

Posted: Fri May 07, 2021 11:54 am
by atoyuser1
bepeg4d wrote:Hi,
you need to change the Absorption/Scattering channel to Temperature, now it is set to Density.
And change the Absorption and Scattering color from Black to White:
The attachment E86D3E53-DC55-4320-BFAD-6899F8B89FF6.jpeg is no longer available
The attachment Octane TFD-v01b.c4d.zip is no longer available
ciao Beppe
This works for me, thanks!

Is there a trick for getting it closer to the physical render?:
Physical vs Octane
Physical vs Octane
EDIT: Lowering the Volume Step Length seems to help brighten it, but still a bit washed out:
Physical vs Octane
Physical vs Octane

Re: Turbulence FD with Octane Tag

Posted: Mon May 10, 2021 7:47 am
by bepeg4d
Hi,
try also to fine tune the Colors in the Emission Volume Ramp, and increase the Max Value, or Power of Emission node.

ciao Beppe

Re: Turbulence FD with Octane Tag

Posted: Wed May 12, 2021 7:59 pm
by atoyuser1
bepeg4d wrote:Hi,
try also to fine tune the Colors in the Emission Volume Ramp, and increase the Max Value, or Power of Emission node.

ciao Beppe
Thanks Beppe,

Interestingly, if you copy and paste the gradient from the TFD object onto the Object Tag, you get this (on right):
copy and paste the gradient
copy and paste the gradient
But it's very red.
The closet I can get is by deleting the red and adding a Yellow to White Gradient, with Max Val 1:
Yellow to White Gradient
Yellow to White Gradient
But it's still not quite there, the Physical render looks much nicer:

Image

Re: Turbulence FD with Octane Tag

Posted: Wed May 12, 2021 10:26 pm
by jayroth2020
Try making your Max value 10,000

Re: Turbulence FD with Octane Tag

Posted: Thu May 13, 2021 9:08 am
by atoyuser1
jayroth2020 wrote:Try making your Max value 10,000
Thanks for replying jayroth2020, that made it red tint:
Max value 10000 yellow white grad
Max value 10000 yellow white grad
So I tried using pasting grad from the TFD object, but it vanishes:
Max value 10000 TFD grad
Max value 10000 TFD grad
Feels like TFD is better suited for smoke than fire, at least in Octane. It just looks like fire-coloured smoke

Re: Turbulence FD with Octane Tag

Posted: Thu May 13, 2021 9:24 am
by atoyuser1
Incidentally, I might point out that the white in that gradient is actually orange:
White is actually orange
White is actually orange
No idea why it's doing that