Animacino3D

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Computer-generated imagery
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Computer-generated imagery (CGI) (Pronounced "Cee Gee Eye")[1] is the application of computer graphics to create or contribute to images in art, printed media,video games, films, television programs, commercials, simulators and simulation generally. The visual scenesmay be dynamic or static, and may be 2D, though the term "CGI" is most commonly used to refer to 3D computer graphics used for creating scenes or special effects in films and television. They can also be used by a home user and edited together on programs such as Windows Movie Maker or iMovie.
The term computer animation refers to dynamic CGI rendered as a movie. The termvirtual world refers toagent-based, interactive environments.
Computer graphics software is used to make computer-generated imagery for movies, etc. Recent availability of CGI software and increased computer speeds have allowed individual artists and small companies to produce professional-grade films, games, and fine art from their home computers. This has brought about an internet subculture with its own set of globalcelebrities, clichés, and technical vocabulary.
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Static images and landscape
Not only do animated images form part of computer-generated imagery, natural looking landscapes, such as fractal landscapes are also generated via computer algorithms. A simple way to generate fractal surfaces is to use an extension of the triangular mesh method, relyingon the construction of some special case of a de Rham curve, e.g. midpoint displacement.[2] For instance, the algorithm may start with a large triangle, then recursively zoom in by dividing it into 4 smaller Sierpinski triangles, then interpolate the height of each point from its nearest neighbors.[2] The creation of a Brownian surface may be achieved not only by adding noise as new nodes arecreated, but by adding additional noise at multiple levels of the mesh.[2] Thus a topographical map with varying levels of height can be created using relatively straightforward fractal algorithms. Some typical, and easy to program fractals used in CGI are the plasma fractaland the more dramatic fault fractal.[3]
A large number of specific techniques have been researched and developed to producehighly focused computer-generated effects, e.g. the use of specific models to represent the chemical weathering of stones to model erosion and produce an "aged appearance" for a given stone-based surface.
Architectural scenes
A computer generated image featuring a house, made in Blender.
Modern architects use services from computer graphic firms to create 3-dimensional models for both customersand builders. These computer generated models can be more accurate than traditional drawings. Architectural animation (which provides animated movies of buildings, rather than interactive images) can also be used to see the possible relationship a building will have in relation to the environment and its surrounding buildings. The rendering of architectural spaces without the use of paper and penciltools is now a widely accepted practice with a number of computer-assisted architectural design systems.[5]
Architectural modelling tools allow an architect to visualize a space and perform "walk-throughs" in an interactive manner, thus providing "interactive environments" both at the urban and building levels.[6] Specific applications in architecture not only include the specification ofbuilding structures such as walls and windows, and walk-throughs, but the effects of light and how sunlight will affect a specific design at different times of the day.[7]
Architectural modelling tools have now become increasingly internet-based. However, the quality of internet-based systems still lags those of sophisticated inhouse modelling systems.[8]
In some applications, computer-generated...