Quick Tip 37: Spline Projection

In this Cinema 4D Quick Tip we take a look at several methods of projecting Splines onto geometry.


  1. spacecom

    Thank you for all your tutorials! Great Work!!
    I’m trying this 2nd method out you show here, on R18 and R21, c4d keeps generating additional points inbetween which also are projected, while the original points on the spline stay at the same place… any idea, why that might be happening? Cheers in advance!

    • Samuel Winter

      Did you remember to turn the “smooth” option off on your brush before projecting?

      • spacecom

        thx for yr respond. unfortunately yes, I did…. i checked the video about 5-6 times and paused it to make sure to have all the boxes checked / unchecked – used a bezier spline even prepared the surrounding like you had it, one never knows… i even tried on mac and pc to be sure ๐Ÿ˜‰
        i’m not really a c4d newbee – but i’m feeling sort of helpless here..

        • Samuel Winter

          Ok, here’s what I’ve figured out, points being added appears to be correct behaviour, this ensures the spline can deform to the contours of the geometry underneath.

          The reason your brush might not be projecting correctly is quite a strange reason, the viewport you are projecting from (in the case in the video, Top View) needs to be set to “Gouraud Shading” or “Gouraud Shading (Lines)”

          Hope this helps ๐Ÿ™‚

  2. K.Tokarz

    Thanks for this tutorial Sam. I did get an issue where i do step by step whats in your video yet the spline still do not project as it should as you can see it falling under the model im projecting it on to.

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