Man 1: Hey who ever said riding clouds is difficult, it is not that bad. This time on, tips and tricks we are going to show you some Chroma Key favorites and recreate the process so you know how to do them too.
Tips & tricks
Man 2: A commonly known green screen favorite is the weather map used in every newscast around the world. To do this effect, we simply use two green thumbtacks placed at separate locations on the green screen to be use as markers to give our talent a point of reference when it came to our locations. Here you can see a massive storm is on the way with clouds looming over Videoville during the weekend, then cascading down into Camcorderland and in alarming rate while the sun raises up to Videoville. I hope you brought umbrellas and swim trunks because that is the quickest season change ever.
While we are talking about the news, we use a picture and picture effect to get the example of an on-location cut away or phone installed interview. We place our talent to the left leaving some extra room to the right of the picture for the picture box. Once we had our picture and picture, we just scale it down to the right size and have our talent react to the conversation.
For our background, we simply use some cutaways of space to give the impression that the talent was talking about secret, aliens, spy mission.
Another popular Chroma Key trick is the ability to fly. By lying the talent on top of a rolling cart, and the use of a very powerful fan, we were able to sell the effect. The key here was to make sure that we cut the cart out of the frame and the background of the sky was heading on the right direction as well as in time with the speed of the fan. When everything was in synch together, the effect was easy to sell. When the background speed and the speed of the fan was off, the effect look nearly as powerful.
Another popular Chroma Key trick is motion behind the talent to sell the effect of movement. This is commonly use for shots inside a vehicle or motion around a subject that is not the main focus of the shot. We use a fan and a bicycle and have our talent pedal away in front of a green screen while staying in the exact same spot. When we inserted our background, we make sure that the motion reflected the opposite direction of our bicyclist. This way, we were able to sell the idea that the talent was moving forward.
To take the subject into another environment that we could not normally get to, we again enlist to the help of the fan and the reaction of the talent to sell the explosion of a volcano which of course we inserted later. After being blown away to Smithereens, our talent was thrown to their doom as they fell to the ground below. To do this effect, we had our subject lie on top of the green screen adjust your lights to face downward and use the fan to blow close upward to sell the fall down. After adding two markers, one at the beginning of the fall and one at the end of the fall, we simply scale the talent down in size to give the impression that he was falling farther and farther when in reality we were just shrinking the image more and more.
The same basic fan effect was used to add the illusion of a tornado. We threw in some debris and had our talent react to the fan which is place in front of him to sell the effect of a large gush of wind. By adding the debris, we were able to add to the illusion by creating what look like more swirls from the wind provided by the fan.
Another popular Chroma Key illusion is making select body parts disappear. By first cutting on a portion of a green screen and then taping to the body part we want to disappear, we can add the background over the green screen and along the stomach making it appear to have a huge hole right in the center, no wonder he was complaining of stomach pain.
This effect also works on walls or anywhere that you can cut out a specific shape and tape it to a surface. Here, we cut out a brick formation and inserted a clip of surgeons working away making it seem as if we walk by a hole in the wall exposing another room. Again, by simply cutting out the design that we wanted out of the green screen and taping it to the wall, we were able to create this effect.
Male 1: Well as you could see, whether you are trying to do the weather, whether you are trying to use Chroma Key to fly, any one of these effects is all attainable you can do it, we showed you how. Now, get out there and make it happen.
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