Smoke Opacity Ramp

[pipe_mm]

Hello

I am trying to "fly" with this plane through a "windtunnel"
https://vimeo.com/198125068/dbfcefa912
(sim here is a bit short but you get the concept)

The simulation is emitted from a plane with noise for discharge.
Everything works perfect, GPU preview in the viewport is a great help.

I would like to hide my source (the area where the smoke is emitted) by mapping a gradient to the opacity
I get get the concept that you can adjust the opacity by editing the curves in the different channels (temperature, smoke, speed), but I cannot find a setting that serves my demand.

Is there another way than playing with the smoke opacity speed curve?
Should I try using ramp in the "texture" slot?

Thnx in advance
Martin

[Ivaylo Katev]

better use the option to modulate the opacity by map

[pipe_mm]

Thanks Ivaylo
I will try today
I have another question, if you could look at the Vimeo (I updated it with a muuuuch longer sim):
https://vimeo.com/198125068/dbfcefa912

The smoke unfortunately gets very much dragged into the middle of the field
So all the noise I am generating from my emitter plane gets merged together
I would prefer if it would move in parallel tracks between creation and extinction
The sim movement comes from a phoenix plain force field
I to set to change the "Phoenix FD Node Properties" for the generator plane, cause I thought it be responsible for changing the wind direction
perhaps someone has a clue how to get a parallel stream
Thnx
Martin

[Svetlin.Nikolov]

Hey,

Jammed walls of the container would help for this situation. You can lookup "wind tunnel" hare in the forums - there is an example scene that could give you some hints as to how to get such a flow.

Cheers!

[pipe_mm]

Thank you Svetlin