Rotoshop

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Image example from A Scanner Darkly

Rotoshop is a proprietary graphics editing program created by Bob Sabiston. Rotoshop uses an animation technique called interpolated rotoscoping, which has been used in Richard Linklater's films Waking Life and A Scanner Darkly. The name is a portmanteau of "rotoscope" and "Photoshop", a photo editing program from Adobe. The software is not currently available for use outside Flat Black Films.^[1]

1 Aims
2 Use
- 2.1 Interpolation
- 2.2 Freezing
3 References
4 External links

[edit] Aims

The software was developed in order to do extremely lifelike hand-drawn animation - specifically, to animate the types of expressions and gestures people make that ordinarily would not be scripted into someone's film. Every person has minute speech and movement characteristics that uniquely identifies him or her. This type of animation emphasizes these characteristics.

[edit] Use

[edit] Interpolation

Interpolation is the technique in which a frame can be drawn, then a future frame can be drawn, and the intermediate frames are automatically generated. It is a simple form of "automatic tweening." Interpolated lines and shapes have a very smooth, fluid motion that is extremely difficult to achieve by hand-drawing each line.

[edit] Freezing

In order to manage different objects in the scene, the user can break the drawing into layers. A layer can be "frozen" so that a single drawing remains visible throughout the entire scene. This feature is necessary for backgrounds and other things that do not change shape through time. This frees the user from having to draw the same image 24 times for every second of a scene.