Keyframe interpolation question

[phalimjinx]

Hi all!
I'm having a small issue when setting keyframes. I've found for some of the keyframes I have set, the interpolation is a bit crazy. There is no frame between the two keys. Essentially the first key is on frame 1 the second is on frame 2. The value of both keys are the same, but the curve between the keys makes this huge spike.So, I select the keyrames in the graph editor and try to change the interpolation to "flat" but the huge spike is still there. In other words nothing happens when I try to change the interpolation.

Obviously it's not that big of a deal since the values are the same on the frames themselves and they're right next to each other, but this is going to turn into a problem if I want to scale the animation. (Plus, I'd really just like to know what is going on with it)

Anybody know why Maya won't listen to me?

(Also I don't know if this matters, but I'm using the human IK rig.)

[nathanaelxavier]

Hmm...I've never used the human IK rig before, but that shouldn't interfere with your keyframe interpolation. This has happened to me before, not only in Maya but After Effects and Premiere Pro as well...There can a few things wrong here:

1. Check your keys. Select each key individually and set it's interpolation to "Linear" (click the "Linear" button in the Graph Editor)
2. If nothing happens, make sure the keys don't have any broken tangents or weighted tangents. if they do, then you'll have to get rid of them and re-key them.
3. If you still find nothing changing, select all keys and set the interpolation to "Linear" or "Auto Tangents" (or anything really, just to see if it responds to the changes in the graph).
4. My last bet would be to delete the 2nd key, select the 1st one, copy and paste it on frame 2.
5. Or you can just delete all the keys that are causing you trouble and start from scratch...

Let me know how that works out for you.
Also it would help if you post an image of the graph.
Good Luck