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Activity Forums Maxon Cinema 4D Access (and animate) the ‘u’ and ‘t’ values in a Formula Deformer

  • Access (and animate) the ‘u’ and ‘t’ values in a Formula Deformer

    Posted by Jamie Shaw on April 25, 2023 at 2:53 pm


    The end result I’m aiming for is to animate a ramp down over time in both waves speed and wavelength from rapid and short to slow and long, but also maybe to play around with this freely if the client want’s something a bit more abstract.

    It would be nice also if I could (seperate scene) create a falloff for the wavelength so that the further from the source, the longer the waves get.

    I have scoured the forums and there are bits and pieces about using Python and User Data to be able to multiply u (and t) by an input value, but none of it is complete enough for me to figure out the process.

    Can anyone help?

    Alternatively, there isn’t a way to use the Formula Effector in 3D is there? It comes with animatable wave speed and length already but is only 2D as far as I can see. That would also get me to my goal if it were 3D – i.e. radial.

    Thanks in advance for any advice or examples.


    Boston Cainfra replied 1 year, 1 month ago 2 Members · 1 Reply
  • 1 Reply
  • Boston Cainfra

    May 2, 2023 at 8:42 am

    Hello Jamie

    I have some tips that can help below

    To achieve the desired animation of a ramp-down effect in wave speed and wavelength, your friends can use Python scripting and User Data in Cinema 4D. With Python scripting, they can manipulate the wave properties over time, and with User Data, they can create custom controls for easy adjustment of the wave parameters.

    Additionally, the Formula Effector in Cinema 4D can be used to create animatable waves with wave speed and length properties, but it is limited to 2D waves.

    For a video tutorial on how to create custom wave animations in Cinema 4D using Python and User Data

    I recommend checking out the following video on YouTube: “Cinema 4D Tutorial – Wavy Gradient Effect” by CG Shortcuts. This tutorial covers similar techniques for creating custom wave animations using Python and User Data, and it may be helpful for your friends to follow along.


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