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- Article #15 - AutoCAD, AutoShade and AutoFLIX!
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-
- Almost since the dawn of the computer, man has harnessed the power of his
- most elaborate tool to assist him in the design and development of other
- tools throughout the manufacturing, electrical and architectural industries.
- With the assistance of AutoCAD, an otherwise productive engineer can become
- a dynamo, and a good architect can use AutoCAD in conjunction with AutoShade
- and AutoFLIX to prepare presentations capable of making even the most long-
- range of projects easy to understand.
- AutoCAD has come a long way since its inception in the early eighties.
- Now supporting full 3D, it allows the mechanical engineer to rotate 3D parts
- to check contact points, or the architect to "walk" through a completed
- structure entirely inside the machine.
- Under AutoCAD, 3D drafting becomes simplicity in itself. An architect
- need only produce a floor plan and specify elevation and thickness for
- line panels to produce a 3D version. The floor plan may then be rotated
- and viewed from any angle with the VPOINT command. Additional facilities
- provided by AutoDesk include a HIDE command, which scans an entire image
- and hides any background lines in the wireframe that would not normally be
- seen or would be otherwise concealed by foreground surfaces.
- AutoDesk, the Sausalito-based conglomerate responsible for the industry-
- standard PC-based drafting tool, also provides products such as AutoShade,
- which is capable of shading the surfaces of a 3D model to produce a 3D
- solid model, complete with rendering, so that the viewer of the image can
- easily envision the finished product. To utilize AutoShade, the architect
- or engineer selects the point or points for light sources, angle of view,
- and even a make-believe camera lens (sizes range from 15mm wide-angle to
- 200mm telephoto) to produce the finished result.
- Using AutoShade can be enough to influence a proposal acceptance, claim
- some architacts. Mechanical engineers routinely use AutoShade to produce
- complete 3D solids models for inspection prior to production. And when
- AutoFlix is brought into the picture, the whole concept of proposal anim-
- ation comes to life.
- AutoFlix has the unique ability to display a series of "slides" from a
- "tray". The architect can produce these slides from his 3D wireframe OR
- AutoShade-enhanced drawings, manipulating the image slightly between each
- frame which, when integrated into a complete tray through AutoFlix, can
- produce full 3D solids model animation. The finished product is nothing
- short of amazing, and will turn the head of even the strongest anti-
- computer die-hard.
- Now for the bad news. AutoCAD is not a product for the weak of heart.
- It is not targeted towards the general or home market, and is far from
- a toy. It is a comprehensive engineering and drafting tool which retails
- for a whopping $2,850.00. This price is easily justified by architects
- and engineers who routinely enhance productivity by as much as 300%, but
- for the rest of the PC world, it remains slightly out of reach for the
- typical user. Alas, poor york. Such tools of high tech do have their price.
- Additionally, AutoFlix does have a drawback inherent not to the software
- but to the nature of the hardware itself. An EGA display has some serious
- speed limitations in its ability to display high-resolution images. This
- speed limitation, while not easily noticed in the process of a REGEN, does
- become apparent when one starts thinking in terms of PC-based animation.
- The current bottleneck, a top-speed of one frame every 3/4 of a second,
- does not lend itself to the smoothest of animation. Animation seems some-
- what jumpy. Make no mistake, watching an AutoFlix presentation is nothing
- short of awesome when contrasted to the graphics we've been accustomed to,
- but the EGA itself imposes some limitations which will severely hamper its
- wide-range acceptance in the marketplace.
- The redeeming factor behind the speed problems inherent to AutoFlix lies
- in the newest generation of video coprocessor boards from vendors such as
- Nth Graphics, producers of the powerful Nth Engine video driver card. This
- board replaces your existing EGA controller card and, with its own TI
- display processor, produces throughput in excess of 400 times faster than
- that possible through conventional EGA cards. The board, priced at just
- over $2,900.00 is more than slightly out of the league of most of us, but
- nonetheless gives a fair indication of what lies ahead in the future of
- microcomputing and PC-based animation and graphics. It is unavoidable that
- the cost of this technology will drop as volume goes up, driving additional
- demand and thus a second wave of increased volume. It will undoubtedly
- drop in price over a period of time.
- The question which remains is... How much time?
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