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Not only do animated images form part of computer-generated imagery, natural looking landscapes (such as ) are also generated via computer. A simple way to generate fractal surfaces is to use an extension of the method, relying on the construction of some special case of a, e.g. For instance, the algorithm may start with a large triangle, then recursively zoom in by dividing it into four smaller, then interpolate the height of each point from its nearest neighbors. The creation of a may be achieved not only by adding noise as new nodes are created but by adding additional noise at multiple levels of the mesh. Thus a map with varying levels of height can be created using relatively straightforward fractal algorithms. Some typical, easy-to-program fractals used in CGI are the plasma fractal and the more dramatic fault fractal. A large number of specific techniques have been researched and developed to produce highly 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. Modern architects use services from computer graphic firms to create 3-dimensional models for both customers and builders. These computer generated models can be more accurate than traditional drawings. (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 pencil tools is now a widely accepted practice with a number of computer-assisted architectural design systems.

Architectural modeling 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. Specific applications in architecture not only include the specification of building 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. Architectural modeling tools have now become increasingly internet-based. However, the quality of internet-based systems still lags behind those of sophisticated in-house modeling systems.

In some applications, computer-generated images are used to 'reverse engineer' historical buildings. For instance, a computer-generated reconstruction of the monastery at in Germany was derived from the ruins of the monastery, yet provides the viewer with a 'look and feel' of what the building would have looked like in its day. Anatomical models [ ]. A image generated by a computer from a collection of x-rays.

Computer generated models used in are not always anatomically correct. However, organizations such as the have developed anatomically correct computer-based models. Computer generated anatomical models can be used both for instructional and operational purposes.

To date, a large body of artist produced continue to be used by medical students, such as images by, e.g. However, a number of online anatomical models are becoming available. A single patient is not a computer generated image, even if digitized. However, in applications which involve a three-dimensional model is automatically produced from a large number of single slice x-rays, producing 'computer generated image'.

Applications involving also bring together a number of 'snapshots' (in this case via magnetic pulses) to produce a composite, internal image. In modern medical applications, patient-specific models are constructed in 'computer assisted surgery'. For instance, in total, the construction of a detailed patient-specific model can be used to carefully plan the surgery. These three-dimensional models are usually extracted from multiple of the appropriate parts of the patient's own anatomy. Such models can also be used for planning implantations, one of the common procedures for treating. Given that the shape, diameter, and position of the openings can vary greatly from patient to patient, the extraction (from ) of a model that closely resembles a patient's valve anatomy can be highly beneficial in planning the procedure.