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Matinee creating a perfect loop transition

I'm animating a sphere to move along a path, and then loop that movement. But as soon as the loop ends and goes to begin again, there's an abrupt transition because the 'path' isn't well curved. It's hard to explain, but it's just this ugly loop.

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asked Jan 13 '15 at 03:38 AM in Using UE4

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dorklord_666
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Hi artoculon!

The solution is to linearise tangents of movement keyframes so first keyframe continues the same acceleration in the same directions as the last one. To do this in Unreal you have 2 options:

  1. Use Linear keyframes (looks the best for simple movement between 2 points in space). Just Select your keyframes, then Right Click on them and choose Linear:

alt text

  1. Manually customize first and last frame tangents to match closely (when you need complex movement to be looped smoothly).

alt text

For detailed explanation about Unreal Curve Editor in Matinee please take a look at this articles: https://udn.unrealengine.com/docs/ue4/INT/Engine/UI/CurveEditor/index.html https://udn.unrealengine.com/docs/ue4/INT/Engine/Matinee/UI/index.html https://udn.unrealengine.com/docs/ue4/INT/Resources/ContentExamples/Matinee/index.html#matineemap

Hope that'll help!

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answered Jan 13 '15 at 11:33 AM

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RomanL
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avatar image dorklord_666 Feb 05 '15 at 07:13 PM

wow, great thanks for the reply RomanL! <3

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