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Synfig Studio è un programma di animazione vettoriale 2D. E' progettato per realizzare animazioni di qualità cinematografica avendo a disposizione poche risorse, sia umane che economiche.

Come probabilmente saprai, un'animazione è realizzata tramite una rapida visualizzazione di una sequenza ordinata di immagini per rendere l'illusione del movimento. Tradizionalmente l'animazione 2D è generata disegnando ogni immagine singolarmente. Queste immagini vengono chiamate "fotogrammi" quindi questa tecnica è detta "animazione fotogramma-per-fotogramma". Per generare una buona illusione di movimento hai bisogno di disegnare molti fotogrammi, questo è il motivo per cui sono necessari molto tempo e molte risorse.

Synfig Studio è progettato in modo tale da eliminare la necessità di disegnare ogni singolo fotogramma individualmente. Vi sono due tecniche per ottenere questo:

• Animazione a Trasformazione [Morphing]
• Animazione a Ritaglio [Cutout]

Morphing is a technique that takes two images and creates a smooth transition between them. In the process of transition one shape is deformed into another and this transformation is usually defined by control points. In Synfig Studio images constructed from vector shapes and the morphing is done in automatic way. That allows to create animation by drawing only key positions at relatively wide time intervals. You can draw as many frames as he need to create basic sense of motion for the scene and Synfig Studio takes responsibility to create in-between frames.

Cutout animation is created by splitting objects into parts and applying some simple transformations to them (like translation, rotation or scale) at different moments of time. Synfig Studio uses those values to interpolate the motion for in-between frames. Cutout animation can be produced from bitmap images or vector graphics.

In both cases the role of Synfig Studio is to fill the gaps between the drawn frames (also called "keyframes") and produce smooth and fluid animation. This process is called "tweening". But tweening is not the only advantage of Synfig Studio.

Although Synfig Studio is not directly intended to draw animation frame-by-frame, it can be used to bring your hand-drawn frame-by-frame animation to the film-quality level by converting bitmap data of each frame into vector format. This process is called "tracing" and usually done by hand by constructing vector shapes on top of bitmap image. In the process of construction you can apply a lot of fascinating effects built into Synfig Studio to achieve a professional look for your animations.

Whether you do frame-by frame animation or not, Synfig Studio gives you flexible control over the repeated data, such as colors, outline characteristics, textures, images and many more - even animation trajectories and their sets (actions). Reusing repeated data is achieved via linking. This is a power of Synfig Studio, which is especially important for big animation projects.

Among the plain linking pieces of artwork data you can also define relations between them using a set of functions. That allows to create automatic animation based on the defined laws and bring whole animation process to the new level.

All those features of Synfig Studio are covered in detail in the chapters of this manual.

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