Mask Appears Before It's Keyframe

papaterry wrote on 10/31/2008, 11:17 AM

In pan/crop I drag 1st keyframe to position were i want the effect to appear; create the mask area;
the effect appears in preview window, but it also appears everywhere else when i drag timeline, before and after the keyframe. Am I missing something in the settings?

Comments

Chienworks wrote on 10/31/2008, 11:55 AM

Keyframes work slightly differently. The effect doesn't start at the first keyframe, it's modified at that keyframe, but it exists from the beginning of the clip or track. If there is no previous keyframe then Vegas assumes the first keyframe is effective from the beginning, because the effect starts at the beginning.

You have to add another keyframe at the beginning with the effect set to nothing, and set it to hold. That way when Vegas gets to the keyframe you already have, it has something to change from at that point.

papaterry wrote on 10/31/2008, 10:59 PM

Thanks, friend. I applied what you gave me, but still stuck. Here's what I'm trying to do:
I saw a tutorial on YouTube-- the cool little guy first gets himself reproduced onto both sides of the screen using Cookie Cutter to create the effect. Then he blows a hole in his body using Mask to create the hole. He drags the keyframe that's already there when you open Pan/Crop and drags it from the beginning to the point where he wants the hole to appear in the body. and there he creates the hole. But when i do the exact same thing, the hole appears throughout the video clip. Even without the Cookie Cutter part of the effect, just putting 2 clips on the timeline, one above the other and then going to the Mask effect, the hole I create at the keyframe appears throughout the entire timeline. As per your tip, I put a keyframe at the beginning of the timeline and set "hold" then moved the playline to the middle and set a second keyframe and did the mask (hole) and the result is the same. Thanks again.

TGS wrote on 11/1/2008, 11:29 AM

Very 1st keyframe set to "nothing". Another keyframe, just before the effect starts, still set to "nothing", then put the keyframe with the effect in, after making the 1st two. Zoom in on the timeline and drag the 2nd "nothing" keyframe right next to the 3rd keyframe where the effect starts.
In other words, you have to do the delete the "effect" keyframes and start over after placing the 1st two.

papaterry wrote on 11/3/2008, 8:37 AM

Thanks. It works that way. It works also if I split clip to create separate clip just for the mask to begin and end within the same clip. Here's what I hope someone will do for me-- go to "

and watch how this guy does it and appears to be doing it with just the 1 keyframe set in the middle of the timeline. See what you can tell me. Thanks!