Cinema 4D Quick Tip: Using Mograph to Create a ‘Transparency Effector’

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In this Cinema 4D quick tip, I will be going over how you can use Mograph Effectors to change the transparency of objects.  I’ll demonstrate how you can use effectors to fade on or off MoText objects letter by letter.  You can also use this technique to affect transparency of any object that you can apply an effector to, like placing them inside a Cloner Object or Fracture Object.  I’ve made the project file available to download, showing how you can get it to work using a Fracture Object to apply the effectors.

Download C4D Project File

Check out my other quick tip going over how to get a 2D transparency effect on this animation here.

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  • Oğuz Kılınç

    Hey EJ, thanks for tip. İt’s very useful. But, a small problem occured; when I rendered the animation with alpha channel, and import after effects via alpha, Text alpha seem. Sorry my bad language :) I added a photo for problem.

    • http://www.eyedesyn.com/ EJ Hassenfratz

      Hm that’s interesting. Does this problem occur if you place the Color Shader in the Transparency channel?

      • Oğuz Kılınç

        Thanks for reply, I tried it after your reply, it’s still same. As a temporary solution, using mask in after effects solve it, but it is long way.

      • Oğuz Kılınç

        I finally found a solution. Normally, I was using background layer with animation in c4d and I was getting render together them by checking the alpha channel on render settings, then, when import file AE via alpha, this problem occur. Now, I found this solution, it worked for me; first, I did “visible render off” objects in the scene except background, then I just rendered background. Secondly. I active other objects and did “visible render off” the background layer, and I was getting render again checking the alpha channel in render settings, then I import two separate file in after effects, the problem was completely gone. Now I can do easily compositing :). Thanks again for your great tutorial and tips.

        • http://www.eyedesyn.com/ EJ Hassenfratz

          Nice one! Something I just thought of that you may want to try is placing a comp tag on the background object and enabling “Seen By Transparency”. That might help out too!

          • https://benoguz.wordpress.com/ Oğuz Kılınç

            Thanks for answering, I’ve tried comp tag . At first the problem has not changed . Then I played with exclusion tab in it . The problem was reversed . İt fixed problems in the alpha channel . But problems emerged in the background channel. There’s a little trick but I could not understand .

          • https://benoguz.wordpress.com/ Oğuz Kılınç

            Thanks for answering, I’ve tried comp tag . At first the problem has not changed . Then I played with exclusion tab in it . The problem was reversed . İt fixed problems in the alpha channel . But problems emerged in the background channel. There’s a little trick but I could not understand .

  • josiah

    what if Open GL is enabled and I still cant see it?

  • Pingback: Decoder Text Fade-In Effect Using Cinema 4D Effectors « eyedesyn()

  • Jeff

    How do you get the alpha to show it’s effecting the object in the viewport? I can see it when I render but not while I’m working.

    • http://eyedesyn.wordpress.com eyedesyn

      Do you have OpenGL enabled? That might do the trick.

  • http://dpmpls.wordpress.com dpmpls

    Reblogged this on Digital Pictures, Inc. and commented:
    Cinema4D: Make Effectors Fade on Motext

  • Dave

    EJ – The first tutorial (Quick Tip 03: Using Effectors to Fade On Motext) looks like a very straight forward tutorial, but the color shader has me stumped. I am able to get the text to change to the “letters color”, but applying the color shader to the alpha channel of a new color doesn’t have any influence on transparency. I have watched the multiple times, but can’t get this to work.

    I downloaded the project file, (dl.dropbox.com/u/6351198/eyedesyn_transparency_effector.c4d) hoping it would clarify this for me. However, that file is for using a fracture object without Motext, so the process is different.

    BTW I am using R14 if that matters. Any suggestions???

  • http://jamie3d.com Jamie

    Awesome tip! I’ve used that check box before, but I had no idea that it affected that aspect of transparency as well.

  • Pingback: Cinema 4D Quick Tip 04: Create a 2D Transparency Fade Effect on 3D Objects « eyedesyn()

  • http://twitter.com/rovino Ronn Trevino (@rovino)

    Smooth and clever, took me a while to figure out a nice way to fade in/out in C4D. Essentially using a texture with BW values in the Alpha Channel, this solution adds more flexibility with the uses of effectors. Thanks EJ

    • http://eyedesyn.wordpress.com eyedesyn

      Yeah its so simple once you figure out what’s going on behind the scenes, but they should have a transparency option on an effector or something to make it easier. Or add a transparency option to the Shader effector. Oh well…easy enough solution for now. Thanks for checking it out, Ronn!

  • Pingback: Using Mograph Effectors in Cinema 4D to Change Object Transparency()