Arcing Ball Bounce

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A bounce that moves in two directions – You’re mad!

OVERVIEW

 

This exercise is designed to be an application of the information learned in Chapter 2 of the Animation Bootcamp course.

The assignment is to animate a slightly more complex ball bounce – “slightly more complex” meaning there’s still no squash or stretch and the motion incorporates another axis: Z-axis (up and down) AND X-axis (left and right). This application will hone your ability to blend the f-curves of 2 axes together for a smooth, believable arcing bounce animation.

INSTRUCTIONS

 

  1. Download the Arcing Ball Bounce: Source Files from the Downloads tab. Unzip and open the included .blend file with Blender.
  2. Key your key-poses and manipulate their f-curves to achieve an arcing ball bounce from left to right.
  3. Render your animation as an openGL viewport render – You can choose to render motion paths or not.
  4. Upload your video to YouTube or Vimeo.
  5. Finally, submit your exercise by clicking the Submit Exercise button in the top-right corner of this page and pasting your video’s URL.

Exercise Questions and Answers

Ask a question and get an answer!

Submit your Question
  • Replies: 3

    I wonder why the ball type doesn’t change for some people… it’s not working for me, either.

    3 months ago

    • Replies: 3

      Are you on windows?
      I’ve checked all the files and they work (I’m on mac).

      Are there any errors in the info panel when you open the file?
      Do you have “Auto Run Python Scripts” enabled in the User Preferences > File tab?

      That is all I can think of at the moment, I have no idea why some people are having issues.

      3 months ago

      • I am on windows, yes. It’s either that, or that maybe it doesn’t work on all versions of Blender – I have 2.78, the file says it’s for 2.75, so that might be it? At least everything else works, though!

        3 months ago

      • The “Auto Run Python Scripts” option really worked in my case. Thank you Wayne!

        2 months ago

      • I’m on windows 10 and with Blender V2.78, if that’s of any help.

        2 months ago

    • Replies: 1

      oh can you try a little test for me.
      Is it possible for you to change that to say 2.78, save it, close blender and re-open?
      If it works you’ve found the issue.

      3 months ago

      • It doesn’t seem to have worked… oh well, it must be the windows/mac difference!

        3 months ago

    • Replies: 0

      Thanks for trying, I’m trying to find out the cause.
      Blender doesn’t show a driver warning in the info bar when you open the file does it?

      3 months ago

  • Replies: 0

    If anyone runs into this error, under user preferences>editing>keyframing make sure ‘only insert needed’ is unchecked. I’m not sure why mine was checked. Sorry for multiple posts! I fat fingered the enter key.

    3 months ago

  • Replies: 0

    edit: to the above^

    3 months ago

  • Replies: 1

    at 4:30 when hitting ‘i’ to insert keyframes I’m getting a “keying set failed to enter any keyframes” error. I have the keying set on ‘available’, and both the red button and keys button ticked. curves are not locked. the body bone is selected. using location as the keying set works, but of course this adds the un-needed y curve.

    3 months ago

    • Replies: 0

      If you don’t have any keyframes set first, the “available” keying set will fail. Blender doesn’t know what channels to set key frames on. But it sounds like you got it sorted :)

      3 months ago