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Cables play a big part in the Project Titan environment. In this lesson, learn how to create a collection of cables of varying thickness, then run a simulation to drape them. This setup can be wrapped up into a Houdini Digital Asset and used in UE4 to set up cables in the editor. The result will be a cable tool that will quickly add detail to your environment which is optimized for gameplay.

Project Titan is an in-house tech demo designed to production test Houdini's procedural workflows while creating a 3D environment that leverages the latest technologies in Unreal. Click Here to learn more.



Simon is a tech Artist that loves building procedural tools and assets. By adding more and more procedural approaches to his workflow, he is able to build 3D models with speed and flexibility. During his studies at Digital Arts and Entertainment, he taught himself how to work with Houdini. After his studies, he started working on Ary and the Secret of Seasons at eXiin. Currently he is a Houdini freelancer and focuses on creating procedural content.

More from Simon Verstraete


  • Jaxotron 3 months, 3 weeks ago  | 

    Would the first 4 steps of this process also work with Unity?

    • Simon_V 3 months, 3 weeks ago  | 

      Yes the tool should also work in Unity, just remember to input a curve for the tool.

  • ancientkult1337 3 months, 3 weeks ago  | 

    I'm extremely grateful for this tuts Simon. thanks a lot man!
    Will you make tuts for other stuff too? Loke the building.
    Nevertheless, love you mate!

    • Simon_V 3 months, 3 weeks ago  | 

      Thanks, yes more Tutorials will follow!

  • DL_Martin 3 months, 3 weeks ago  | 

    Are we getting overviews for each tool of this project? Buildings, character VATs and etc... I really enjoyed this!

    • Simon_V 3 months, 3 weeks ago  | 

      Thanks, yes more Tutorials will follow!

  • wang.ray02jp 3 months, 3 weeks ago  | 

    I got a problem when open the file in unreal engine.
    I can't see the Houdini Input. My unreal version 4.26
    Don't know how to solve the issue, it will be grateful if anyone can help me out.

    • Simon_V 3 months, 3 weeks ago  | 

      Updating Houdini Engine could solve the issue.

      • wang.ray02jp 3 months, 2 weeks ago  | 

        It seems to be a license problem, but i'm not quite sure.
        I'm using apprentice license, "Houdini Engine for unreal" seem to need a COMMERCIAL license.
        Still, thanks for your reply, really appreciate it.

        By the way. This tutorial is very useful, and instructions are very understandable.
        Is a great start for beginner. Extremely grateful for making these awesome tutorial.
        Looking forward to learning more~

  • Zalakanear_1 3 months, 3 weeks ago  | 

    Wow this is awesome, is there will be tutorials about how all the tools in Project Titan was created ?

  • CaueRodrigues 3 months, 3 weeks ago  | 

    Amazing tutorial Simon!!

  • Trogleth 3 months, 3 weeks ago  | 

    You guys are heros! I love Houdini but as a complete noob I was having a lot of trouble!! Thank you so much for this!!!

  • DirtPizza 3 months, 2 weeks ago  | 

    For some reason I stop seeing my Spline control points after I open the Sessions Sync. Is there a way to get them back?

    • DirtPizza 3 months, 2 weeks ago  | 

      Oops, was in game view....

  • uyang4127 3 months, 2 weeks ago  | 

    niubi class

  • desolas 3 months, 2 weeks ago  | 

    Such a great course easy.

    One question though, do collisions work with UE4 landscape instead of the floor mesh?

    • desolas 3 months, 2 weeks ago  | 

      I wanted to add that it was easy to follow, but it seems like one of those things that are hard to master with all these different systems implemented.

  • GDonkey 3 months, 1 week ago  | 

    Thank you for the awesome tutorial!

    Everything with the cable creation and hda setup seemed to go correctly.
    But I am stuck, after bringing the asset into unreal 5.

    I cannot edit or see the curve points after selecting "curve input" and my geometry looks super simplified compared to the one in Houdini ( less cables, less twists, too fat ). But the main thing is that I just don't understand how to access the curve and then make the cable flow where I want it. I don't see any vertices or curves just the geo.

    Any help is much appreciated.

  • GDonkey 3 months, 1 week ago  | 

    New day and now the curve is showing itself. Hahah. Never mind. Everything is working great thank you.

  • VladislavK 3 months ago  | 

    Hi Simon, this is great! Thanks for sharing this tutorial! Just as a side note, you could also change the simulation type to Quasistatic and control the frame number from there. It would recook and update the vellum solver automatically on any input change without the need to Reset Simulation.

  • uncleda666 2 months, 2 weeks ago  | 

    I learned lesson 5. Why don't I respond to curve input? It's always Houdini's icon.

  • goodday2ran 1 month ago  | 

    Hi Simon! I follow the steps of lesson 5 but the cables don't collide. Do you possibly know what is going wrong here? BTW I'm using the project file.

  • Julinoleum 2 weeks ago  | 

    Anybody else got a problem with the main cable scaling smaller during the simulation? It's like affecting the pscale but I've been rewatching the setup a good ammount of time.

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