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Author Topic: Key Frames - Moving and Adding problems  (Read 10538 times)


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Key Frames - Moving and Adding problems
« on: December 22, 2007, 01:43:22 am »

I was working with Anim8or trying to do some basic animation and started hitting some problems I've had before but didn't explore in detail.

Key frames don't behave in an expected way, which is making animation cumbersome and difficult. My tests were just using position animation.

The first problem is trying to move a key frame. If you want to change what frame an action occurs on, such as moving it forward or backwards a few frames, your only real option is Edit > Frames > Insert Selected; Delete Selected. Which works, but isn't very efficient for working out timing or moving a group of frames.

When I try a copy/paste, the key frame spline knots get reset. If you have the knots set with the Graph Editor, a copy/paste or cut/paste moves them back to default positions, regardless of Key Type.

Ideas: Fix copy/paste
Make key frames dragable in the Track Window
Add to Key Position Editor a box like 'Frame' but instead of changing the current frame, it would move the key
Short cut keys for moving individual keys

The second problem is adding a new key frame between two existing keys. Especially when the knots are set, a new key frame will change the spline path and move the knots. If you already have curves set up and then have to add a new key, it makes it a lot of work. Best behavior would probably be to not change the surrounding knots or to interpolate it such that surrounding knots do change, but the path does not.


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Re: Key Frames - Moving and Adding problems
« Reply #1 on: January 13, 2008, 04:05:12 pm »

I've run into this problem as well.  Mostly I used copy/paste, but I had to redo knots in the graph editor each time.  It think it would be nicest if copy/past kept the information of the knots in the graph editor as well.  Perhaps it could be the easiest solution as well, I'm not quite sure.


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Re: Key Frames - Moving and Adding problems
« Reply #2 on: January 15, 2008, 09:25:44 am »

i noticed that if you save an animation of lets say a walk cycle and it has key frames that work just fine when created the next time you open the file there will or can be erratic limb angles in those automatic key frame spots. but i just got around that by setting each key frame manually then saving.