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About this blog

Ramblings about video's and making them.

Entries in this blog


Howdo all, yep that time has come for another blog entry, something that's a bit of fun.. Green Screening.

For those of you that are wondering what Green Screening (also known as Chroma keying) is, it's a simple technique for making you appear somewhere your not on video.

Anyone who has seen a weather forecast or a new's show on TV will have seen green screening in action... Or not as you can't see the green screen once the editing has been done.. :D

Anyway, here's what a green screen looks like.. Or part of it as it is rather big being 3m x 1.6m.

Ideally your screen should hang nice and flat with no creases showing... My screen was quickly hung in a way too small room just so I could have a quick play.. I've not told my wife yet that I want to turn the spare bedroom into a recording studio yet :hide:


So having filmed your bit of footage, you now need to do some editing.. I use Sony Vegas Pro 11 for all my video edit (more about Vegas in a later blog entry), as you can do so much in it.


If we zoom in a bit you can see me and the bit of backing footage I'm going to use in the time lines.

You need to make sure your backing footage is below the green screen footage or this won't work.


Now to add the "effect" which will make the green screen vanish.

In Sony Vegas I click on the "Video FX" tab which brings up a whole host of video effects options.. Chroma Keyer is the one we want.

As you can see you do get a choice of different types of Chroma Keying, you can do it using a red or blue screen, but green works the best which is where "green screening" got it's name I guess.

The last 3 GS options are my own custom pre-sets.

For this demo I dragged and dropped the "GS option" onto my GS bit of footage in the timeline.


Which gives you this. The GS has vanished and been replaced by your bit of backing footage.. It's not looking that good however, the backing is a bit dark and you can see the folds in my GS (which is why you need them as smooth as possible).


When you drag the GS option from the Video FX tab onto your GS footage this window also appears so you can tweak the GS effect.


You need to tweak the Low threshold and High threshold a bit, I also add a very small amount of blur..


Until you end up with something like this.


A close up..


So there you go, my short guide to Green Screening..

If your wondering why this blog entry is called "A stupid guide to Green Screening", this short video will give you an idea of what's possible..

The only limit is your imagination :D


Welcome to my Blog.

Howdo all, welcome to my first blog.. Of any kind as it happens. Hopefully I can get it right :lol:

As you may of guessed from the blog title, it's all about video making. Something I love doing if you hadn't guessed already..

Over time I will post up all sorts of (hopefully) interesting video making ramblings such as editing software, which cameras I use and other equipment. Hints and tips, that sort of thing.

I hope this blog will inspire some of you to make videos, and have fun doing so.. Of course the opposite is possible :D

So other than introducing you all to my blog, what else will I be putting in this first entry?

Well, as it happens I need your help...

I'm working on a video series all about promoting RedSquare and RedSquare members videos :D

No hint's on what it is called yet, I hope all of you like it when it hit's a computer screen near you..

So what do I need help with?

Video's of course..

If you think promoting RedSquare and your video's is your sort of thing please submit me your videos.. Full credit will be given for the video clips of course :handgestures-thumbup:

You can post your video links here, or PM them to me if you want.

I will be adding a "RedSquare members videos" section to my YouTube channel where people can click on your vid and be taken straight to your video page.

The bad news is your videos MUST be on YouTube so I can use in-video click-able links. YouTube won't allow "non YT" in-video links! I may be able to find away around this in the future, but for now YT video's only.

Will this idea work out? I hope so. But for it to work I need your video's so get submitting Guy's :handgestures-thumbup:

It's going to interesting for me as this will be the first time I've played a "presenting" roll.... Should be fun :text-lol:

It will be a couple of weeks until the first episode is ready as I'm waiting for a bit of equipment to arrive which will make filming more fun.. And is the only way for me to get the "look/feel" I want in these vid's.

By the way I'm looking for 3 or 4 video clips to finish off the opening title sequence I have created, so get submitting and I might pick yours :D

I will of course try and keep you all update on how the project is going and get some other blog entries up here very soon..

But for now that's all.

So long and thanks for all the fish.... I've always wanted to finish something off using that line :D