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In this video, I’ll show you how to create a custom wind force for the Pyro Solver using a microsolver.

This force is not limited to wind; you can also use it to create drag or other types of effects. The force can be driven by fields such as density or temperature, not just velocity.


In this video, you’ll learn how to:


  • Writing custom VEX code
  • Controlling density in simulations
  • Custom forces, not just wind


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CREATED BY

MatEvil
MATTEO MIGLIORINI

I’m Matteo Migliorini (you can call me "Mat"), a Senior FX Artist with over 10 years of experience delivering high-quality FX for feature films, episodic productions, and commercials. I specialize in Houdini FX and simulation, creating effects such as destruction, fluids, smoke, and cloth, with a strong focus on control, art direction, and production efficiency. With a background as a 3D Generalist, I understand the full CG pipeline and make informed decisions to ensure seamless integration into final shots. I approach FX with a production mindset, focusing on consistency, efficiency, and scalability. I’m used to working in fast-paced environments, handling feedback quickly, and delivering reliable results under tight deadlines.

More from Matteo Migliorini

COMMENTS

  • luispena.vfx 2 months, 1 week ago  | 

    Hi!, I have a question...
    I'm beginner in Houdini so I don't quite understand the difference or why apply this technic instead of assign a wind force in the velocity field or in the solver??
    It's not the same result?

    Thanks for your time

    • MatEvil 2 months ago  | 

      It's a good question Luis.

      Quick answer: You don't have a VEX Control on it.

      Long answer: Inside the solver (Pyro Solver Sparse), you have a tab of "Shape" and inside you can find a "Wind" tab, but you can control only the wind direction. If you create a Microsolver or force (Gas Wind and Wind Force) you can see missing totally the part for control the behaviors of your wind with the VEX so you can't managment or drive by temperature or density (for field) or based on the position (for example you can't say "if smoke is up @P.y>2 moved in another direction). You can get more control.

      Let me know if all is clear now.

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