Virtual reality interfaces in connection

yardbellAI and Robotics

Nov 14, 2013 (3 years and 7 months ago)

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Virtual reality interfaces in connection
with building process simulations.

Prof. Nash Dawood

Centre for Construction Innovation
Research

University of Teesside


Lecture Content


Brief introduction to the simulation process


VR Technologies and interfaces


Benefits of utilising VR in connection with
simulation processes.


Cases and examples from research
projects, including Business Process
issues.


Simulation processes: an introduction


Simulation is about process modeling (digitally or
physical) of a real world/system and examine its
performance under a wide range of variables.


In this lecture we are concerned with digital
simulation where computer models are used to
mimic real situation and examined under different
situations.

Building & Construction simulation
processes


What are the building processes that we are trying
to simulate:


Simulation of construction sites layouts


Simulation of construction equipments working
together


Simulation of production lines and construction
schedules.


Simulations


Collections of objects (cells) that are modeled and
connected to form a particular system (for example:
no of units in which a particular machine can
process per time, etc)

Simulation techniques


How we build models


Event oriented simulation (can be through user
interaction)


Time oriented simulation


a mixture of the above.

Interfacing with simulation models


Is the ability of the simulation model to accept
instructions (inputs) for users while the simulation
process is in progress.

KYLE TIMMERMAN SOFTWARE

Virtual Reality


What is a VR


VR is the simulation of a real or imagined
environment that can be experienced visually in
three dimensions and that may additionally provide
an interactive experience visually in full real
-
time
motion with sound, etc..

VRML


Virtual Reality Modeling Language, is the
standard
for the web and allows the creator to specify images
and rules for their display and interaction using
textual language statements.


It's a scene description language that describes the
geometry and behavior of a 3D scene or "world".


VRML Features


Standard objects (cube, sphere, cone, cylinder, text)


Arbitrary objects (surfaces, linesets, pointsets)


Ability to fly through, walk through, examine scenes


Lights


Cameras (viewpoints)


Textures on objects


Clickable links


Define and reuse objects



VRML Features


Animated objects


Switches


Sensors


Scripts (Java or JavaScript) for behaviors


Interpolators (color, position, orientation, etc.)



Extrusions Background colors and textures Sound (.wav and MIDI)


Animated textures


VRML Structure

VRML worlds

(single or group that

load at the same time)

They can range from simple objects to

very complex scenes




Browse

VRML

VB

3D CAD

Converter

Examples


The Virtual Construction site


VRML interfaces


Stockyard layout