Key Frame Krazy

jkrepner wrote on 5/10/2006, 1:35 PM
Is it me, or do things seem to drop down a pixel or two when you keyfame on Motion tracks? I'm trying to move about 40 small .pngs across the screen and each one seems to dip a pixel or two0 (even when I disable vertical movement). I can see it on the monitor and on the keyframer. Makes me want to stab people!!!!

Edit:

Y = -100 @ keyframe #1
Y = -100 @ keyframe #2
Between the two it dips to -108 then back to -100



Speaking of committing unspeakable harm, can we please one day (and I beg) to have the ability to zoom in on pictures larger than 720x480 using track motion... bouncing between the crop and track motion is freaking terrible.

I think I agree that some of the software people need to sit down with use users and watch us deal with the little work around that rob so much time. Then again, I don't think I need to be near anyone right now with 20 some pictures yet to keyframe!!!!!

(p.s. I obviously am joking about inflicting harm on people..)

Comments

JohnnyRoy wrote on 5/10/2006, 2:16 PM
> Is it me, or do things seem to drop down a pixel or two when you keyfame on Motion tracks?

It’s definitely you. ;-) (just kidding)

It sounds like you may have Smoothness set to 1.000 under Keyframe Interpolation. Try setting it to zero (0.0000) and see if that stops the unwanted movement.

~jr
Chienworks wrote on 5/10/2006, 2:51 PM
What is your problem with zooming in on larger pictures with Track Motion? It seems to do exactly that for me. I have no problem using it with pictures of any arbitrary size.

I couldn't duplicate the Y position problem with a quick test, but i know i've seen behavior like that before. Usually setting smoothness to zero at all keyframes solves it, unless you want smoothness, of course.
johnmeyer wrote on 5/10/2006, 5:06 PM
What is your problem with zooming in on larger pictures with Track Motion? It seems to do exactly that for me. I have no problem using it with pictures of any arbitrary size.

Kelly, I assume you know that you should never use track motion to zoom in on still photos. The reason is that track motion resamples the picture after Vegas has already down-sampled to project size. Thus if your project is 720x480 and you start with a 3000x2000 image, if you use track motion, and zoom in 2x, the resulting image will be sampled all the way down to 360x240 (yucck!) because Vegas first downsamples to 720x480, and then track motion resamples that image and downsamples by a factor of two. By contrast, if you use pan/crop, and you zoom in 2x, the 3000x2000 image is downsampled to 1500x1000. Then, after the zooming has been done, the 1500x1000 is downsampled to project size (720x480). Unlike some things in Vegas, the difference in this case is not subtle.

But, like I said, I assume you already know that, so perhaps you were referring to something else.

jkrepner wrote on 5/12/2006, 11:17 AM
jr, thanks. That'll work, but I can't do that for every picture and every keyframe in future projects. Is there a way to change the default keyframe smoothness to zero?

Chienworks, um... zoom in on a 1280x1024 (or any arbitrary size) picture on a 720x480 timeline using track motion and it quickly turns the picture into a pixilated blurry mess.

Thanks guys.

Jeff
jetdv wrote on 5/12/2006, 11:29 AM
but I can't do that for every picture and every keyframe in future projects.

Sure you can. There's a script available that will do that for you. I have that functionality built into Excalibur but there's a free version here as well.
jkrepner wrote on 5/12/2006, 11:34 AM
Okay, I'll look into it. I actually bought Excalibur and didn't install it since I upgraded to Vegas 6.... I honestly just don't use it. But maybe I should start.

I do feel Vegas should have keyframe smoothness default to zero or a project wide setting of some sort.
J_Mac wrote on 5/12/2006, 12:08 PM
I may not describe this the right way, or sure if this will help, but, if you set up one picture the correct way, you can draw a box with your mouse around that set of keyframes in P/C or Track M, then right click, copy and paste to your new pics position. Assuming you want the exact same motion. I'm not sure if copy event attributes works the sane way. John.