December 14, 2017, at 03:52 PM
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Photorealism

"The term photorealistic implies that the image resembles a photograph. In other words it mimics reality. Somewhere along the line the term photorealistic has been downgraded to meaning something that's close to realistic but not quite there" (Fleming, 1998).

Similar to Augmented Reality, photorealism is an advanced illustration technique which can be used for many domains such as engineering, medical, robot, military, mobile travel, education, entertainment and so on.

Photorealistic Rendering for Design Ideas or Product Visibility

From concept to virtual prototype, the basic idea of photorealism for the Engineering Designer is to be able to bring design concepts into life-like visualization through precision modeling, photorealistic lighting, complex surface texturing, and cinematic animation. By utilizing high-end graphics tools and specialized techniques, the skillful illustrator can create computer generated imagery (CGI) that simulates life like photographs of a realistic item. Often product design ideas can benefit by bringing high-impact illustrations which represent the design, and photorealism CGI is just the ticket to fill this need. CGI images that are generated for illustration of the design idea or product can often vary from 3D modeled objects rendered directly in the Computer Aided Design (CAD) program such as Autodesk AutoCAD, from a specialized design rendering animation and visualization program such as Autodesk 3DS Max, or from a blended combination use of CAD modeling, animation, rendering and/or even a compositing post production software tool such as Softimage. In generating photorealistic CGI scenes many experienced illustrators recommend that various techniques and tools be explored in varying combinations that are the most suitable for the illustrator's level of skill and knowledge. Since often these techniques must be accomplished through iterative adjustments made while developing the scene in one or more of the CGI development products.

Some very realistic images which require a critical eye and even a closer look to determine if they are photographs of real images or if they are something computer generated.

DGET technicians create engaging and believable images which help with the design communication. By creating accurate representations with simulations and animation in a wide range of media, DGET technicians demonstrate extensive experience with the latest computer technology, including: 3-D modeling Image editing Graphic design Photo-realism rendering Material editing Computer animation Virtual World environments Multimedia authoring

Photorealism Examples

Photorealism Presentation Slide Show

As demonstrated CGI imagery can be very realistic with images that require a critical eye and a closer look to determine if they are photographs of real items or if they are something computer generated.

Design engineering technicians can create engaging and believable images which help in design communication. By creating accurate representations with simulations and animation in a wide range of media, technicians demonstrate extensive experience with the latest computer technology, including:

  • 3-D modeling
  • Image editing
  • Graphic design
  • Photo-realism rendering
  • Material editing
  • Computer animation
  • Virtual World environments
  • Multimedia authoring

A small collection of graphics representing Design Visualization and Photorealism through 3D Virtual Rendering


"GLASSES"

Notice how the color gradients are, how the transparencies of the glass and the reflections of the light appear.


"STAIRS"

Notice the gloss and reflections across the polished floor, the grain of the wood, and the high chrome highlights of metal that trims the chest, and the flatness of the walls that highlight with light different from the metal or high gloss.


"CHEST"

Notice the gloss and reflections across the polished floor, the grain of the wood, and the high chrome highlights of metal that trims the chest, and the flatness of the walls that highlight with light different from the metal or high gloss.


"Back to School 2 - PENCILS"

From the grain and the gloss in the wood table top to the flat wood in the ends of the pencils, again different material properties apply here in this picture. The pencil sharpener looks to be plastic, and the color of the pencils look correct for the paint coatings, as does the embossed text on each.


"WATCH"

Computer Generated - Source: Zildjian 3D, Nov 2, 2007.

Materials have different properties in how they accept or reflect light. Plastic can be relatively shiny if glossy, or can be flat and dull depending on the finish, as is the band on the watch and top of the table. Metal and glass have even different properties as shown in this picture.



Credits & References:

Computer Generated - Source: Zildjian 3D, Nov 2, 2007.

3D Artist: the must have magazine for the 3D Art Community. Imagineshop.co.uk. Imagine Publishing Ltd. Members:

Kevin Donahue, Goncalo Madureira, Craig Babin, Girbacea Ana-Maria, Rick Bissell

Picasa Web Albums - Zildjian (back to school 2), - Barunendra (stairs)

Fleming, B., (1998). 3D Photorealism Toolkit. John Wiley & Sons, Inc.

Modified: January 31, 2016, at 04:29 PM RecentChanges | AllRecentChanges