True Impostors

True Impostors are an extremely efficient method of adding a large number of models to an interactive scene without adding an unwieldy number of polygons. The technique utilises modern shading hardware to perform ray casting into texture defined volumes.

A virtual screen is set up in texture space for each impostor and inherits the same camera dependent orientation as the impostor. Each pixel on the impostor corresponds to a point on its virtual screen. By casting the viewing ray from this point into our texture defined volumes, the correct colour for the target pixel can be found computationally cheaply.

True Impostors can easily generate 150,000 objects in a single scene, at usable frame rates on high-end 2007 hardware.

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True Impostors

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Roleplayability in Muds
A guide for how to enable true roleplay within the static confines of a computer-mediated world. The lessons this short article teaches are immortal. They were true then; they are true now.

A True Virtual Voice: First Steps
Texas Instruments unveiled one of the first steps towards a true virtual voice in early 2008. A collar forming the ability to speak without using the vocal cords.

VR Interfaces: The Webcam/EyeToy
In a paradigm where overcoming physical constraints is key, a webcam may seem a very odd VR interface device. However, what lays true for one section of individuals, dows not always lay true for another. The PS2?s EyeToy has done much in the cause of using physical body form as an input device.

Large Image Display: Animatrix: Beyond: Arriving On Scene
Whilst it is true that an administration vehicle in a heavily natural laws based VR would have to obey those physical laws or risk damage to the simulation wherever it traveled, it is also true that it can bend the rules to a degree. An invincible construction material is impossible within those laws, but a fantastic material that can absorb almost every blow, and can smash through a wall at 70mph, without taking a dent, is theoretically not impossible. That's good enough to avoid breaking the rules.

Concept of Self - Exposed?
Proprioception may not be the stumbling block to true immersion we have always considered it to be.

Seek and Discover
An interesting and likely familiar rant on the difficulty of being a true explorer in a manufactured virtual environment.

Pet Peeves...
Two irritations at the designers of the virtual worldlets of today, both still all too true (Online Game Definition, broadband design).

Literally, Your Two Cents
A look at the true costs of paid support staff, and the ways you can maximise their time. Short, but worth a read.

Actors and Reactors
A look at the four essential qualities of true Roleplayers: Awareness, Interaction, Goals, and Incentive. Without these put into the characters by their players, you have persona play, not roleplay...

A True Artificial Cochlea
Constructed by engineers at MIT, a single low power radio receiver chip has been painstakingly modelled on the function and deciphering capabilities of the human ear.

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