What is Green Screen Technology

Green screen film production: how does a green screen work?

Green screen film production: how does a green screen work?

The so-called "green screen technology" is familiar to most people today, as it is known from numerous movies. In this article you can read exactly how the process works and what special requirements green screen recordings place on a film production.

For a green screen film production, be first Filming against a green background made. The so-called Chroma keying and Compositing, i.e. the removal of the green color and the replacement of the background.


Film recordings with green screen

The first step towards your green screen film production is - after successful planning - your film recordings. Here, film recordings are made in front of a green background surface, usually a green (linen) wall (English: screen "Canvas") recorded.

In order to avoid problems during post-production, the following should be observed when recording a film:

  • Evenly illuminate the green screen
  • Illuminate people evenly and stand out from the background
  • Avoid shadows - for example by the person - on the green screen
  • Light matching the film material, which will be added later (realistic lighting conditions)
  • Do not use green color in the foreground (no blue color for blue screen)
  • no reflective objects in the picture (glasses etc.)

Tip: the further the person is from the green screen, the simpler the lighting and the less the green color is reflected from the person in the picture.


Post production: chroma keying and compositing

Once the film recordings have been made, the so-called Chroma keying carried out (English: chroma key "Color stamps"), a color-based image cropping. In a film editing software, the green parts of the picture are removed and the person is cut out.

The last step is that Compositing, whereby several picture elements are put together to form an overall picture, ideally in such a way that the viewer does not perceive the picture as a composite picture. Here you now have the option of combining any images - real film recordings or animations - with the green screen recording as a background.

You can read more about compositing in our article Compositing: Combination of 3D and real film read.


Advantages of a green screen film production

  • Any background without a lot of effort, such as setting a backdrop
  • Efficient production costs (e.g. saving travel costs)
  • Impressive images that will inspire your customers
  • Individual background tailored to your company possible
  • Maximum freedom in post-production, such as subsequent changes to your film

If you would like to produce your own format for your company, you can easily combine green screen recordings with an individual background. You can read more about this topic here: Modern corporate communication with company TV web video


Best practice example

Green screen film production from Aspecteins:


Your green screen film production at Aspecteins

Aspecteins GmbH supports you in the concept, planning, implementation and post-production of your green screen film production.
With the green screen recordings you can choose between in-house and external production choose: for in-house production we provide you with the necessary technology and offer training. The external production is done by a camera team from Aspect One - either in your company or in your own Aspect into a green screen studio.
Aspect one then takes care of professional keying and compositingin order to be able to provide you with the best quality results.


Easily download this article as a PDF file: Green screen film production

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