Download e-book for kindle: A Hitchhiker's Guide to Virtual Reality by Karen McMenemy

By Karen McMenemy

ISBN-10: 1568813031

ISBN-13: 9781568813035

ISBN-10: 1568814771

ISBN-13: 9781568814773

A Hitchhiker's consultant to digital Reality brings jointly less than one hide the entire features of images, video, audio, and haptics that experience to interact to make digital fact a fact. like all strong advisor, it finds the sensible stuff you want to know, from the point of view of authors who've been there. This two-part advisor covers the technological know-how, expertise, and arithmetic of digital truth after which information its functional implementation. the 1st half seems to be at how the interface among human senses and know-how works to create digital fact, with a spotlight on imaginative and prescient, an important feel in digital truth. the second one a part of the publication is tightly built-in with an accompanying CD, which includes the courses for greater than 30 digital fact initiatives, ranging in scope from a device that simulates digital sculpting to a collection of software program for the keep watch over of a four-projector immersive digital setting

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Extra resources for A Hitchhiker's Guide to Virtual Reality

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Human Tactile System 21 and change depending on the location of the sound source in relation to the head. In other words, there is not a single transfer function, but a large set of transfer functions—one for each direction the sound comes from. Finally, it is important to know that there is no universal transfer function. Each person has his own unique HRTF. To measure the HRTF of an individual: • A loudspeaker is placed at a known location relative to the listener; • a known signal is played through that speaker and recorded using microphones at the position of the listener.

However, the major disadvantage of this type of system is that it is not interactive. That is, the sound must be prerecorded, and as such it cannot change even if the user moves. Obviously, this can detract from the user’s sense of immersion in the VR world. Binaural recording can be improved upon by using head-related transfer functions1 or HRTFs. These HRTFs basically try to determine what a user will hear, based upon where he is in the room and on the location of the original sound. This may sound easy, but it does require some complicated mathematics!

Ulicny. “Crowdbrush: Interactive Authoring of Real-Time Crowd Scenes”. In Proc. ACM SIGGRAPH/Eurographics Symposium on Computer Animation, pp. 243–252. Aire-la-Ville, Switzerland: Eurographics Association, 2004. ✐ ✐ ✐ ✐ ✐ ✐ ✐ ✐ 4 Building a Practical VR System A first-time user of any VR system may be surprised by how much more satisfying and engaging the sensation of reality can be when more than one of their senses is involved. The experience will also differ depending on the degree of engagement with that sense.

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A Hitchhiker's Guide to Virtual Reality by Karen McMenemy

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