VP 22: Keep Keyframe Automation Proportional on Time-Stretch

Soniclight-2.0 wrote on 9/9/2025, 4:32 PM

Let's take something simple - basic Vegas video intro title:

When I reduce or stretch out the Generated Media event, the keyframes for whatever FX I have automated for it such as Glint or Color Correction do not follow proportionally and seem to vanish or sit at the original length keyframes location in the combined keyframes automation timeline, so I have to re-do them.

(Maybe the use of "automation" isn't quite Vegas-speak, I'm basically just translating what I do with track automation lanes in Steinberg Cubase Pro. But hopefully I'm making sense anyway.)

I must be missing something really basic here to not have this happen...
Thanks.

Comments

bvideo wrote on 9/9/2025, 8:54 PM

If you change the event length with ctrl-drag on the right edge, the keyframes change proportionately.

Soniclight-2.0 wrote on 9/9/2025, 9:51 PM

@bvideo - I've tried that, both with regular select + Ctrl drag, and selecting the Time Stretch version of select. Maybe I have some Vegas preference set that is preventing this?

Here are the results of some temporary applications of this boo-boo.
The keyframes just don't want to behave...

The first here is the original length:



Second is stretched out longer:



Third, made shorter: