Region Rendering

Region Rendering, sometimes known as border rendering, is a technique more often used in pre-rendered images than in interactive VR or AR displays. However it is fundamentally compatible with both, and is a means of reducing the render workload, speeding the creation of the next frame.

Simply put, region rendering is when only a portion of the field of view is fully rendered, rather than the full thing. In pre-rendering it is often used as a tool to quickly get an idea what the final image will look like, without having to wait for the full thing to render. This saves time if the end result isn't what was hoped for.

In interactive virtual reality and augmented reality environments the concept is the same, though the reasoning is a little different.

In these interactive environments, maximising render speed is a priority. If you're going to be rendering interactively, at least 30 different renders per second are a necessity, and at least 60 it more ideal. Inevitably of course, this means the possible level of detail is much lower than a pre-rendered scene.

By using region rendering, you can skip the rendering process altogether for any areas of the environment which haven't visibly changed between frames. Thus it's possible to squeeze out more render frames per second, greater detail of render, or both, compared to rendering the entire field of view each time.

See Also: Rendering. 3D Rendering Engine, Render Pass, Field Of View, Stereoscopy, Frames Per Second

Below, we offer a selection of links from our resource databases which may match this term.

Region Rendering

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Tron (Region 1)

US and Canada region DVD of Tron; The first Hollywood film to feature computer mediated reality. Set in a cyberpunk-alike environment, Flynn, a programmer at a major software firm, is fired for all the wrong reasons. He sends Tron, a program written by himself into the computer mediated world to find evidence to vindicate himself.

Tron (Region 2)

UK, South Africa, Middle East, and Europe region DVD of Tron; The first Hollywood film to feature computer mediated reality. Set in a cyberpunk-alike environment, Flynn, a programmer at a major software firm, is fired for all the wrong reasons. He sends Tron, a program written by himself into the computer mediated world to find evidence to vindicate himself.

Volumetric Rendering in Realtime
A brief but thorough multi-part article from Gamasutra, on creating volumetric rendering in real-time, for use in fog, fluid, and other effects, which correctly affect light at any point through them.

Real-Time Rendering, Third Edition

A required reading book on real-time scene rendering that has been around for years, this book serves as a holistic, platform-independent guide for creating high frame rate renders that are as realistic as possible for the hardware available ? and teaches you where the bottlenecks are in the process so that you learn how to gauge new hardware from spec and understand how it will directly impact performance.

The Orgasmatron
A prosthetic device, implanted the lumbar region at the back of the spine, that functions, essentially, as an orgasm control circuit, and bypass route for sexual stimulation without actual physical sex.

Everquest is by far the largest MMORPG available right now with something in the region of 430,000 players, almost 120,000 of whom might be online at any one time. Now nearing five years of age, the original Everquest world of Norrath has been added to with the introduction of a fair few add-on packs such as Shadows of Luclin, or Velious Scars.

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