Editing Multiple Keyframes

#1

I was wondering, is it possible to be able to select a scoped animation from your timeline and add a relative key for those frames to affect all of them? For example at frame 1 to 15 I want my rotate Y to set a key on those keyframes to increase or decrease each separate key selected. That way I can go back and tweak certain areas overall instead of going frame by frame.

I tried to scope the keys and in the table tab select 1-15 and MMB click to change the position, but it sets the same position for every key.

#2

Sure, you can. You just need to adjust your approach, and as the Houdini motto says, “Think Procedurally” by throwing a channel operator (CHOP) on those keyframes instead of using the MMB click to change the keyframe position.

Open up the Channel Editor, scope the keyframes you are interested in. Right-click on a channel group and choose Motion Effects > Create Clip to create a CHOP. Plug in the values, and you’re done!

For a better explanation about CHOPs, I’d recommend this Introduction to CHOPs tutorial from Side Effect’s Houdini website.

#3

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