http://www.videoforums.co.uk/sony-ve...al-videos.html

This video is not bad but it could be better. The method is flawless so well done. Here are my reccomendations:

Firstly it would be easier to follow if there was voice over through out. I know you have the text guide with arrows but the standard method for training videos is to use a VO with the occasional piece of text to highlight button locations - Its what people expect.

Secondly during the process it would help to toggle between treatedand untreated video. You show the originals at the start but it would be nice to see them during thr process also.

Thirdly once you have achieved the goal it would be good to show several other examples thus proving the point that the principal works.

You should change the title to: Green Screen How To with Sony Vegas. - I have seen the comments left for the video!!

Good job!

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When i found out about chroma keyer on this forum I immediately went out and bought 4 bright green poster boards haha. I came home put them up and recorded my video. One problem the lighting was so off. I figured using the boards outside during a cloudy day or a day with not much sunshine but still light out would work the best.

wish me luck

BTW

Any difference between blue and green screen?

Not sure but I think blue was used for film and green tends to be favoured for video.

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Blue or green doesn't matter so much. In ITV here in the UK we always used blue. The BBC used green. But you should consider, for example things like the colour of your talents eyes. You wouldn't want to key a blue eyed person with a blue screen. (or maybe you would if you wanted to see the b/g image in their eyes.)

Maybe pickup a few pointers also from this YouTube link:

http://www.youtube.com/watch?v=jgzH8Nkgvr0

I went to a Chroma-key workshop at the ACMI in Melbourne this afternoon which was pretty interesting (made a 6 minute film using just a green screen).

With regards to screen colour the original "blue screen" was used because the human skin gives off very little blue light spectrum and it worked best for film cameras. However with digital technology, green screening was found to be better for general use.

However you can use any colour theoretically and many studios use different colours for specific applications (e.g. RED screening for close up shots of models). We were told today to pick a colour to suit your need (e.g. if your character is wearing a green costume, green screening is going to cause you problems.

Andy

Does anyone have any tips for creating my own home-made greenscreen? I can't use a real one and I don't think painting a wall would be the best idea.

A friend advised me to use a large piece of MDF wood and cover it with green fabric. But after reading through here, I don't think that's such a good idea, since there may well be creases in the fabric.

Any tips are grewatly appreciated

I used a piece of green plastic that I bought at a home center (is that Japanese English?). It is corregated inside but flat on the outside. It would have worked okay and so would a green cloth but the most important thing it seems to me is lighting (and or the size of the CCD that you are using, the bigger the less light you need). Ideally it should be lit evenly and well, as well as the subject.

Tim

Of coourse the screen doesn't really need to be blue or green, as long as the colour is bright and different to that of any colours on the subject.

This video (which is just a test of a concept for a music video) was shot on a single ccd comsumer camcorder infront of a red wall, lit only by daylight through one window off to the side. obviousy not the best keying in the world but for a 5 minute test from shoot to end composite, that ignored all the 'rules' of production, I don't think it's too bad.

http://www.youtube.com/watch?v=wECFPAVSvfA