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Trying to make Alpha of out side edges of screen
I am trying to place a picture montage in the upper right corner of a motion back ground. The pictures are all portrait, so I have black edges on both sides. Is there a way to mask this? Or make the outside edges alpha and see thru? Also, when using the pan and crop tool, its not letting me slide the pictures to the right as far as I want too. Is there a way to expand this? When I try to slide to the right the picture starts to go away. Thanks in advance for any advice as I need to have this done in 2 days.
Rick
Rick Rintala
Flying Finn Video Services
Bedford Texas
http://www.flyingfinnvideo.com -
3 Replies
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“The pictures are all portrait, so I have black edges on both sides. Is there a way to mask this?” Well, you might want to confirm that these black edges are nothing other than “space”. As you quite rightly indicated, as they are Portrait you may very well have empty space on each side, and as such we can’t mask out that which ISN’T there. Yes? The one thing we can do is to match the aspect ratio of the still to that of the project. That would cure the “black” or rather empty bars on the edges.
“Or make the outside edges alpha and see thru?” Do you actually see anything filling in these edges, when you place a track with an Event directly under it?
“Also, when using the pan and crop tool, its not letting me slide the pictures to the right as far as I want too. Is there a way to expand this?” Yes, this is an observation many people eventually get to. The Pan tool is literally that: It simulates you Pan-ing a camera’s “F”rame from left to right or from Right to Left. You move the Pan tool Right, the picture appears to go Left. If you look at the workspace for Pan you will see the “F”, indicating “frame”, in dotted outline. OK, it that might appear as IF the picture is moving, but of course, as when you pan a camera you are actually pan-ing across a scene – the White House doesn;t actually move left or right! The same holds true here. The picture you have is not moving, but the frame of the viewer is.
“When I try to slide to the right the picture starts to go away.” That’s correct, if you just use Pan then at some point you would be moving the picture out of “F”rame and it would prematurely vanish from the frame. What I would do would be to SIZE the picture in Pan/Crop and then use Track Motion to position the picture. This way you get to get ALL the Picture in frame until YOU decide when it should vanish stage right.
HTH
Grazie
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In addition to Grazie’s suggestions, right-click the image once you’re in Pan/Crop and select “Match Output Aspect”.
This will allow you to slide it around as expected. -
Grazies answer is teaching you to fish while Mikes answer is giving you a fish.
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