Selim Tevfik İLKER, 030060028, 7th week

Rendering: Real time renderingis concerned with making images rapidly on the computer. It is the most highly interactive area of computer graphics. An image appears on the screen, the viewers act or react and this feedback affects what is generated next. This cycle of reaction and rendering happens at a rapid enough rate that the viewer does not see individual images, but rather becomes immersed in a dynamic process.

(Real time rendering, Tomas Möller,Eric Haines,Naty Hoffman, pg.1)

Fractography: Fractography is important in many fields of science and engineering. It is

intrinsically interesting because it provides insights into the nature of the solid state that are not

otherwise accesible. The basic premise is that the topography of a surface created by a growing

crack is characteristic of microstructure of the material and the test conditions. By observing,

measuring and interpreting the fracture surface topography it is possible to determine many

features of the microstructure of materials and the mechanics of crack growth.

(Fractography: observing, measuring and interpreting fracture surface topography,

Derek Hull, pg. xiii)

Laser Scanners: Laser scanners can measure very small items such as bones and small

hand-held artifacts. Because such scanners are restricted in terms of practical development and

range of measurement, their utility in the 'natural' environmet is often restricted to lab-based

studies on small-scale surface features.

(Laser scanning for the environmental sciences, George Leonard Heritage, pg. 91)

Valisys Program: One of the dynamic software suppliers is the Valisys Corporation which was

formed in November 1987 after a few years of development work. Since then, the company has

been developing and supporting manufacturing automation software products that validate part

designs, use design data to automate inspection processes and support quality control analysis.

The first decision of the Valisys development team was that a universal desigh language had

to be used to allow design information from various geographical sites to be exchanged. The task

was simplified because of the universal acceptance of the ANSI standart which describes geometric

dimensioning and tolerancing. The symbols used in GDET provide labels for engineering drawings

that not only provide dimensions, but also indicate functional relationships and other characteristics.

This standart code prevents misinterpretations.

At this time, it is useful to restate the main problem confronting computer integrated

manufacturing. it is the difficulty communicating engineering data from product designers to

manufacturing engineering to the shop floor. Now, the Valisys Corporation' s software, which is

one of the modern manufacturing software systems that improves the flow and accuracy of the

engineering data in a manufacturing environment, will be described.

(Modern Manufacturing Processes, James A. Brown, pg. 177)