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Turbulence FD with Octane Tag
Posted: Thu May 06, 2021 2:39 pm
by atoyuser1
I have made a simple TFD test, and rendered with Physical Render:
But when I attempt to achieve the same render in Octane (adding the Octane tag to the TFD Container), I get this weird glitch:
Am I missing something obvious?
Using PR11 on Big Sur
Thanks
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 7:30 am
by bepeg4d
Hi,
pay attention to start with a Black color in the Emission Volume Ramp:
ciao Beppe
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 8:09 am
by atoyuser1
Hi Beppe,
Thanks for replying, unfortunately that had no affect:

- TFD
I've attached my file:
Thanks,
Darren
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 10:49 am
by aoktar
Did you check it with different versions of C4D and with older TFD plugins?
See picture, there's some compatibility problem with the voxel data, it's up to TFD plugin.
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 11:19 am
by bepeg4d
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:
ciao Beppe
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 11:21 am
by atoyuser1
aoktar wrote:Did you check it with different versions of C4D and with older TFD plugins?
See picture, there's some compatibility problem with the voxel data, it's up to TFD plugin.
I didn't actually, it's my first time using TFD so I don't have any previous versions
After a lot of trial and error I think I'm getting closer to finding the cause. The problem seems to be with the building of the cache, as other (.bcf) cache files load in fine.
Before building, on the
TFD Emitter Tag>Channels - You have to make sure Density Value is not 0:

- Density value
Then on
TurbulenceFD Container>Simulation>Density Check active:

- TurbulenceFD Container>Simulation>Density
This is all
before building the cache.
It still feels like something is not right though, seem's bit buggy to say the least
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 11:23 am
by bepeg4d
Have you tried my version?
ciao Beppe
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 11:26 am
by atoyuser1
bepeg4d wrote:Have you tried my version?
ciao Beppe
Just looking now Beppe....
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 11:30 am
by aoktar
atoyuser1 wrote:bepeg4d wrote:Have you tried my version?
ciao Beppe
Just looking now Beppe....
What Beppe says that's true. I forgot to use it since I didn't touch that for a long time.
Re: Turbulence FD with Octane Tag
Posted: Fri May 07, 2021 11:33 am
by bepeg4d
In your TFD sim, the Density channel is not calculated, so cannot be used in Absorption/Scattering, and you need to use the Temperature instead:
ciao Beppe