Controlling speed along motion paths

Question

I have created a motion document in which still images are given keyframed motion paths (in 2 dimensions). I would like to vary the speed at which the images move along their paths in between those keyframes.
I tried to apply variable speed time remapping using bezier curves (with the same keyframe locations as those on the x and y motion curves), but it seems to have no effect whatsoever.
If I first render the animation and, in a new file, apply time remapping, variable time remapping works perfectly, but I am trying to do this before rendering.
Any help would be greatly appreciated.
Thank you,
Tim

Answer 1

Howdy,
This is where the Motion Path behavior really shines over traditional keyframing of position. If you use Motion Path to animate your object, you can set the behavior's Speed to 'Custom', which lets you set a single progress keyframe. This makes it ridiculously easy to control the speed, as well as do reversals, etc. You'll have a single velocity curve to animate in the Keyframe Editor.
Motion Path is one of Motion's biggest unsung heroes for animators.