Using a green screen is an affordable and easy way to transport your video to anywhere imaginable even to places that don t exist.
Chroma key garbage can green screen.
The garbage matte script lets you extend the virtual world beyond the green screen s limited size.
In this tutorial in english for blender 3d we will look at some basic concepts on how to crop an image or a movie made with green screen to overlay it on another image or movie.
Shoot in at least 422 but most probably raw.
Through the technique of the chroma key a color is isolated in our case the green of the green screen or a particular luminance it is removed and the area that was occupied by it becomes transparent thus.
Either way it s vitally important to light the background well.
Then drag the green screen footage from your project bin onto a v track 2.
Green screen fisher 1 103 views.
You will get the green screen effects automatically.
It should be evenly lit so that all parts of the background are the same brightness and it should be free of shadows or anything which may cause shadows or bright spots like wrinkles.
You can use it to sit behind a desk in a busy newsroom or dance on the moon but first you have to know how to properly perform chroma key compositing two videos together.
It allows you to define a region in space and exclude image pixels that do not belong to this region.
Finally store your chroma key parameters by clicking on save.
10 i use ae but most software s remove it in a similar way.
You also can refine video with tools like tolerance offset and alpha channel to make background video clearer.
In ae if the screen is hard to remove you might want to apply several instances of color key to remove the green first.
It needs to be as evenly lit as possible at about 40 to 50 percent luminance says production head mitch apley.
I suggest leaving a v track 1 free in case you want to add a title later on.
Then click on effect and 4 keyers.
Hd green screen 1 754 views.
The biggest mistake you can make with green screen work is lighting the screen and the subject as one.
Move your cursor over to the green screen clip and double click to bring up the settings window at the left corner and then just need to tick chroma key there.
To add the chroma key effect double click on the green screen footage on a v track 2 to bring up the editor tab.
For a colored background or chroma that is easily keyed out light your screen first.
Fortunately enlight videoleap on ios makes it easy.
Raw has a whole separate channel for the green screen so you can avoid color contamination or chroma sub sampling that will mess up the edges of your key.
Pre made green screens and blue screen come in chroma green or chroma blue standardized colors for chroma key use.