Pyro - Wind by temperature

[bumper]

Hello !

I'm trying to add wind that affect only the voxels with low temperature but for some reasons it's not working.

 

Here the HIP FILE : wind.hipnc

 

I feel like the attribute @temperature is not recognized inside the dop network in a gas field wrangle.

I did the same thing but with the height in Y and it's working. The gas Field Wrangle can read the P attribute and the Vel.

When the smoke reach 2 meters height it got affected by the force.

 

 

If I do that with the temperature, as it's not read the attribute is equal to zero so even with a very low value the force will be applied...

 

 

So I managed to do that with a custom vel field (I scattered points with v attribute that goes on the side and I rasterize it in volume) but it may be heavy on larger sim so I'm trying to find a way to use directly the temperature if that's possible.

 

Thank you for your help !

 

 

Edited August 2 by bumper

[Atom]

That's odd. Your example file works for me unchanged. One thing to remember, is once you dive inside the DOPNet, your f@temperature point attribute no longer exists. It becomes voxel data. Try removing the f and just reference @temperature.
Try this code. in your gas wrangle. This is actually a cure for mushrooming velocity.

@vel *= @temperature;

 

Edited August 4 by Atom

[bumper]

Hey Atom,

I apologize actually I re-opened my file and it's working now !

Thanks for the answer and for the precision tho'