Vfx
In filmmaking, Vfx is shortened for visual effects. This is
the processes by which imagery is created and manipulated in post production.
Digital compositing
Compositing is the combining of visual elements from
separate sources into single images. This creates the illusion that all those
elements are parts of the same scene.
The video below explains what digital compositing is and how its done.
Here as an example of digital compositing used in a film. The twins in this film Parent trap (2000) were in fact the same actress Lindsay Lohan playing two characters. Each scene would have been acted out twice with the cameras in the exact same positing but having the actress play different roles while playing one role shed have a body double standing in the place her other character would be.
I'm going to use this technique, as I will edit the same model onto the screen so that there would be two of the same model each wearing a different outfit.
Here is an example picture.
This effect is most commonly seen in music videos. Below are some examples of this effect used in films and music videos.
The first video is from the film We Are Your Friends.
The 2nd video is a Bruno Mars music video where this effect has been used.
This effect takes patience and time. As one will need to export the final video into after effects and draw on it frame by frame. Tools such as the wacom tablet make the process faster as you can draw as if you're drawing on a paper instead of using the mouse.
For my video I'm planning on using this effect too outline the clothes and do some words and little images in the background. Nothing will be extremely detailed therefore it wont take me too long to do.
Here as an example of digital compositing used in a film. The twins in this film Parent trap (2000) were in fact the same actress Lindsay Lohan playing two characters. Each scene would have been acted out twice with the cameras in the exact same positing but having the actress play different roles while playing one role shed have a body double standing in the place her other character would be.
Here is an example picture.
Animated drawing/ Scribble effect
A hand drawn animation drawing/ scribble that's added onto
the video after in post. This is usually done in software such as after
effects. This effect is achieved by drawing onto each frame.
Below is a tutorial video of how this effect is used and created in After Effects.
Below is a tutorial video of how this effect is used and created in After Effects.
This effect is most commonly seen in music videos. Below are some examples of this effect used in films and music videos.
The first video is from the film We Are Your Friends.
The 2nd video is a Bruno Mars music video where this effect has been used.
This effect takes patience and time. As one will need to export the final video into after effects and draw on it frame by frame. Tools such as the wacom tablet make the process faster as you can draw as if you're drawing on a paper instead of using the mouse.
For my video I'm planning on using this effect too outline the clothes and do some words and little images in the background. Nothing will be extremely detailed therefore it wont take me too long to do.
Green screen / chroma key
You can superimpose subjects onto virtual backgrounds, place
them over animated digital backdrops etc. You can change the size of the person
and place them on items, use visual effects to make him fly. You would need a
green background also known as a green screen, and then be able to remove the
green screen replacing it with anything else in post.
This is also called "chroma key - Keying is the process
of isolating a single colour or brightness value in an electronic image and
using software to make that value transparent, allowing another image to show
through the affected areas. Luminance keying, or lumakeying, is the process of
keying out a brightness value or range, like black or white. Luminance keys are
often used for applying mattes. Colour keying, or chromakeying, identifies a
specific colour to remove.
In the visual effects world of Hollywood, blue screens are
far more common than green. It doesn't necessarily need to be green as you can key
out any colour; red, yellow, purple or pink, blue and green. The biggest reason
green is so commonly used is contrast. In order to isolate one area from the
rest, the background colour must be distinctly different. Bright green beats
blue partially because it is not a colour commonly worn. Any clothing that
matches the background too closely will also key out.
This article has several example gifs of films and tv shows that sue green screen.
The video below has examples of green screen being sued in the TV show Game of Thrones.
