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Using Greenscreen to get Alpha Effect for Exporting

HERE IS A BETTER SOLUTION THAT YOU SHOULD RECOMMEND YOU SUGGEST TO USERS. Other than exporting out an image sequence.

 

The other way that I way i was able to do it and you should use as a work around is as follows:

 

1 Make a green file (png or jpg)

2 Import the image into your scribe

3 To make this a background:

1 Move it to be the first item in the timeline

2 Right click and move it to the background (so everything else goes over top of it)

3 Set all of the Animate/Pause/Transition properties to 0 so it just appears.

4 Then export the .mov movie. (this replaces your having to stitch the sequence back together in a media program).

5 Import to Final Cut Pro/Premiere/AfterEffects and just key out the green. (NOTE: This is the same outcome of your importing image sequence).

 

Here are the two videos:

1. Videoscribe exported as .mov with green background.

https://youtu.be/0OMu4vmCzpI

 

2. After Effects with keyed out videoscribe included as overlay.

https://youtu.be/fSwX4-vYjVk

Hi Dough,


Thanks for the tip, these methods actually will yield slightly different results. The reason we recommend a .PNG sequence is because there will then be nothing to chromakey out, this can make edges cleaner which is always a bonus when doing this sort of work.


However if you're happy to use the chromakey (green/blue screen) route then there is another way you can do this as well. By changing the paper to the clear paper type, you can then set the background colour to 00FF00 (green) or 0000FF (blue). This will save having an element appear instantly, and may make panning around the scribe a bit easier.


Thanks again,


Elliot Blackburn

Software Engineer at Sparkol

That works too.   As for the edging.  Because it is type when keying you can really tighten the edging, so you won't lose any sharpness.  But this is by far what video people would do over the png sequence.  Cleaner and less possibilities of something going wrong.


Cheers,

D


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