Pan/Crop jumping (Issue)

Icebear wrote on 3/27/2017, 6:10 AM

Currently on a trial of Vegas PRO 14 (Build 211) 64-bit, and over the past few weeks, I've run into the problem where still images that I Pan/Crop jump around when moving them, making them unable to be in certain positions.

A bit of testing, revealed that this only happens when the images are Pre-FX'd (in this case, it's Chroma Keyer -> Pure Green Screen)

Example of issue:

https://i.gyazo.com/530d2100c1ca6df78d3ddd7476d059ac.mp4

About the video: I use the arrow keys to move the still image around one pixel at a time (left side), but at certain points it makes massive jumps (right side).

Is there any way fix to this, other than not pre-FXing the images (since every image is used 10+ times)?

Back to post

Comments

Icebear wrote on 3/28/2017, 6:36 AM

That is a solution, without too much work, and probably what I will do.
I even have a few images with an alpha channel, so I suppose I could do that with the rest as well.
Was hoping it could be fixed in Vegas itself, but seems like it's a bigger issue

Marco. wrote on 3/28/2017, 6:38 AM

Just tested: You can use IrfanView to transform the green background as alpha channel for a 32 bit PNG output. This way you would not need a chroma key in Vegas Pro and the issue won't appear.

Icebear wrote on 3/28/2017, 6:44 AM

My question was why you executed the Chroma Key twice on the same footage, one time as event FX and one time as Media FX.

Removing it as Media FX gives you the same picture outcome without the jump.

Ah right that.
I started with applying Chroma Keyer to each clip, when I remembered you could apply it to the file itself, to cut down time spent on the same action
So the first clips will have Chroma Keyer applied (in addition to the Media FX), the later ones wont

dxdy wrote on 3/28/2017, 10:32 AM

You can also try using Secondary Color Corrector to key out the background. There used to be a terrific Sony Creative Software tutorial about it. This link discusses it a little...

http://www.sonycreativesoftware.com/forum/showmessage.asp?messageid=944626

Marco. wrote on 3/28/2017, 10:46 AM

It doesn't matter which FX is used. It's a bug in the Media FX process which affects all Media FX applied onto certain grafic files.

NickHope wrote on 3/28/2017, 10:51 AM

You can also try using Secondary Color Corrector to key out the background. There used to be a terrific Sony Creative Software tutorial about it.

This? https://web.archive.org/web/20141010044120/http://www.sonycreativesoftware.com/solving_tough_keying_problems_in_vegas_software

And there's also this: https://web.archive.org/web/20150131142939/http://www.sonycreativesoftware.com/understanding_video_compositing

zdogg wrote on 9/8/2018, 3:59 PM

I am getting this jumping behavior now in Vegas Pro 16, as a result, perhaps, of having the Pan/Crop window open on footage that is time stretch on the time line, and so, some Keyframe points added are not, per se, on actual frame beginning, but somewhat shifted to "between frames" and if clicked on, jump to the beginning of the clip or event start. Weird and obnoxious, but I then delete the "jumpy" points and replace them in an close adjacent frame start position.

I also have weird timeline readustment, vertically -- also an unwelcomed and non predictable "jump" (at least I don't know what precipitates that) to a sort of middle position, vertically, bad if I have many tracks and I am working toward the top of the timeline page, now out of view...sucks.