projects in virtual and augmented...
TRANSCRIPT
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z
deti departamento de electrónica telecomunicações e informática universidade de aveiro
Projects in Virtual and
Augmented Reality@DETI
Paulo Dias
RVA 2019-2020
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Outline
• 3D Reconstruction
• RVA
• VR Frameworks
• RVA@deti
– pSIVE (Platform for Setting up Interactive Virtual
Environments)
– Museu da Cidade de Aveiro
– VR4Rehab (Edição RVA 16-17 – videos)
– Continuous AR
– Bosch
– Produtech
– EdupARk
– …
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How to start a presentation – Top 3
• What is Virtual and Augmented Reality
and what do you need to do it?
3
OR
• What are we doing at DETI in Virtual and
Augmented Reality besides teaching the
RVA course?
• 3: Start with a question!
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How to start a presentation – Top 3
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• 2: Shocking Facts
• AR/VR 3.33 Billion USD in 2015
• Expected 133.78 Billion USD by 2021
• Portuguese 217,6 billion USD in 2017
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How to start a presentation – Top 3
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• 3: Tell a story
• How did I come to this area?
• Ola, Eu sou o Paulo Dias!
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3D reconstruction – Paulo’s PhD 1998 - 2002
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• Available for small models
Shape Grabber
Minolta Vivid
Marble Statue of Aphrodite scanned with the
VIVID 910 using the rotary stage option
3D reconstruction
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• For larger models (building, room) one possibility is to use “Laser Range scanners”.
Riegl
Zoller & Frölich
Cyra
SICK adaptado
Departamento de mecânica
3D reconstruction
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Point cloud
Reflectance
1000 x 175 (Riegl LMS Z210)
3D reconstruction
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Triangulation
Registration (ICP)
Digital Photos
Texture
IEETA model, 12 range, 12 Photographs
3D Model
3D reconstruction
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Ieeta
Lab. Mecânica
Assemblée nationale Farmhouse Laveno
Sala dello scrutinio
Adapted Sick (Aveiro) Riegl (Italy)
3D reconstruction
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3D Reconstruction – google Tango (discontinued)
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Ieeta amphitheatre
Gab. 005
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PhD - September 2003, 23
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• Interaction with 3D content ?
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Why Virtual Reality?
• 3D information is common (3D reconstruction,
games, CAD, Design, etc…)
• Interaction is still mainly 2D – Keyboard and
mouse since 70s’
• Virtual Reality: Attempt to go beyond classical
interaction and immerse user in 3D environment
Apple II – from 1977
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Reality Augmented Reality Augmented Virtuality Virtual
Mixed Reality
Paul Milgram [Milgram et. al 1994]
Virtual reality Continuum
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Projecto de 5º ano:
Mário Cruz
Paulo Moreira
2004-2005
Low cost environment for Virtual and Augmented Reality
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Virtual reality
• Equipment
– Tracker 3DOF (Yaw, Pitch,
Roll)
– HMD SVGA stereoscopic
– Accelerometer– [Electrónica e
Sistemas Médicos / DETI]
pose detection.
• Graphicl libraries
– OpenGL
– VTK (Visualization Toolkit)
– OGRE
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Augmented Reality
• Equipment
– Virtual reality + Camera
– Video see-through
• AR Toolkit
– Marker detecction
– Superposition of virtual elements
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Magic book prototype - 2005
Results
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Challenges in VR/AR
• User interaction with world – Input Devices
• User immersion in world – Output Devices
• =>No unique solution: several attempts
with different solutions
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Input: Motion trackers
– Magnetic
– Mechanical
– Acoustic
– Optical
– Inertial
– Hybrids (Combination of previous)
Polhemus Fast-Track
Leap
3D Mouse - Logitech
InertiaCube 3 - Intersense
Finger Tracking - ART
Kinect
Phantom
Razor Hydra
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Output
– Monitors
– Surround screens
– Workbenches
– Hemispherical Displays
– HMD
– Arm Mounted Displays
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Hardware@deti - Input
– Intersense 3DOF Inertial Tracker [2009 - 1940€]
– Intersense 3DOF Inertial Track. BT [2012 -1437€]
– Wintracker [2009 - 1285€]
– Phantom Omni [2012 – ~3500€]
– Kinect v1.0 (3) [2012 - 300€]
– Kinect v2.0 (1) [2014 - 300€]
– Swissranger [2012 – ~3000€]
– Leap Motion (3) [2016 – 60€]
– Google tango HTC and Lenovo [2015 – ~500€]
– Orbtec Astra [2019 – ~250€]
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• Trackers:
– 3DOF wired and wireless
– Wintracker 6DOF
– Google Tango
– Leap Motion
– Kinect 1/2
– WiiMote
– Razor Hydra
– Phantom
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Virtual Reality - Hardware
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Hardware@deti - Output
– I-glasses SVGA HMD [2004 - 800€]
– VR 2000 HMD [2012 - 1359€]
– Oculus DK1 [2014 - 420€]
– Oculus DK2 [2015 - 500€]
– Gear VR + Game Pad [2016 - 250€]
– Samsung Galaxy S7 [2016 - 650€]
– HTC VIVE [2016 - 1350€]
– Meta Glasses [2018 – ~1800€]
– Xperia Projector [2018 – ~3000€]
– Myo gesture ArmBand [2018 – ~100€]
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• HMD:
– Oculus DK1,2
– HTC VIVE
– Samsung Gear VR
– HMD SVGA (2)• I-glass
• VR 2000
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Virtual Reality@deti – Hardware
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Hardware@deti - Input
Hardware session in a few weeks!
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VR Frameworks Introduction - 2013
• Creating a Virtual Environment
– Cost (Time & Money)
– Specific knowledge
• Several frameworks/tools
– Specific implementation
– Particular architecture
• How to ease?
– Tools for ‘laymen’
– Flexible yet simple
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Graphics engines
• OpenSceneGraph– open source C++ cross-platform toolkit for simulators, virtual reality and
games
– several NodeKits that fulfill a variety of purposes, such as particle
systems, text display, special effects, shadow , 3D interactive controls
,…
• OpenSG– real-time graphics programs, e.g. for virtual reality applications similar to
OpenSceneGraph
• VTK– Open Source library based in Object Oriented Programming
– multi-platform (Windows/Unix/Mac)
– C++ implementation with several wrappers for other languages (Tcl/Tk-
Python-Java)
• Many more …
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Real-time physics engines
• Bullet– Free, open source
– Collision detection
– Soft and rigid body dynamics
• Newton Game Dynamics– Cross platform open source
– Simulates rigid bodies in games and other real-time application
• PhysX – multi-platform game physics
– support several devices (smartphones, GPU, CPU)
– Integrated in several game engines
– Acquired by Nvidia in 2008
– SDK provided to developers for free
• Many more…
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3D Computer Graphics software
• Blender– free/open-source 3D computer graphics software used for creating
animated films, visual effects, art, 3D printed models, interactive 3D
applications and video games.
– include 3D modelling and several effects: texturing, raster graphics
editing, rigging and skinning, fluid and smoke simulation, particle
simulation, soft body simulation,…
– integrated game engine.
• OpenSpace3D– Free Open Source development platform for interactive real time 3D
projects
– User friendly, possible to create interactive 3D scene without writing any
code.
• 3D Studio Max– 3D Modelling, Animation & Rendering Software
– Autodesk, commercial
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What else?
• Something missing?
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Game engines
• Unity– cross-platform game creation system that includes a game engine and
an integrated development environment.
– Graphic working environment that facilitates 3D scene creation and
layouts
– Physics engine that provides collision detection, forces, torque and
physic materials
– Two licensing options Unity and Unity Pro
• Unreal Engine 4– Multiplatform game development toolkit supports state of the art
graphical fidelity
– full access to the source code of the engine
– In 2015 released for free usage with a 5% commission on commercial
products.
– PhysX 3.3 physics engine for physical simulation
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Virtual Environment Frameworks - not desktop
• CCG Cave setup /Guimarães
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Virtual Environment Frameworks - not desktop
• inVRs
• VRJuggler
• Vizard
• 3DVIA
• others
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inVRs
– Institute of Graphics and Parallel ProgrammingJohannes Kepler University, Linz, Austria (2006)
– C++
– OpenSG and OpenSceneGraph as a scene graph engine
– Network distributed virtual world
– Pre-defined navigation and interaction techniques
– Configurable via XML
– Mostly used on academic environmentsAustrian/German Universities
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Source: http://www.invrs.org/app_gallery.php
Safety Training - SAVE
Walkthrough
Entertainment - Space Trash
inVRs Applications
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VR Juggler
– Iowa Center for Emerging Manufacturing Technology, Iowa State University, Iowa, United States (1998)
– C++
– Supports many graphics Engines – OSG, OpenSG, OpenGL, VTK…
– Huge variety of modules
– Network distribution through NetJuggler
– Extended over time – Ex.: VR JuggLua
– Used for many different purposes – Commercial / Academic
• Mina do Lousal (PT)
• Korea Ocean Research and Development Institute
– Configurable via VRJConf – Backend XML
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Source:
Korea Ocean Research and Development Institute
Source: http://vrjuggler.org/, Last
VR Juggler
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Vizard
Vizard Development Edition
Vizard Development Academic - Single License $ 3,990
Vizard Development Academic - SITE License 5 Seats $ 6,990
Vizard Enterprise Edition
Vizard Enterprise Academic - Single License $ 5,990
Vizard Enterprise Academic - SITE License 5 Seats $ 9,990
Vizard Plug-Ins
Vizard ARToolworks Add-on Development Edition $ 570
Vizard ARToolworks Add-on Enterprise Edition $ 7,990
• WorldViz, Santa Barbara - CA, United States
• Pyton Scripts + GUI
• OpenSceneGraph - Possible to expand vizard funcionalities
• Support many comercial Devices
• Physics Engine
• Research & Science (VHIL - Stanford U), Architecture & Construction (Archidimex - Netherlands)
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Vizard
Applications
IDE
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• Dassault Systèmes, Vélizy-
Villacoublay, FRANCE
• Former Virtools
• Closed Engine
• Many GUI Tools to work on models,
animations and scenes
• Price around 9000 USD + 3000 USD/yr
Source:
http://www.3ds.com/fileadmin/PRODUCTS/3
DVIA/3DVIAVirtools/demoshowcase/html/bro
wse.html?br=1
3DVIA Studio
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Peripherals Interfaces
• Virtual Reality Periphery Network (VRPN)– network-transparent interface between applications
and physical devices used in VR
– client-server approach
– layer of abstraction that classifies inputs into several
categories (Analog, Button, Dial, Force Device,
Sound,Text, and Tracker), allowing to receive generic
input from different devices.
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Other Frameworks
• FreeVR
• Avango NG
• DIVERSE
• ViRAL
• EON Studio
• …
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Conclusion – VR frameWorks
• Difficult choice, many solutions
• Complex Architecture – Many Abstractions
• Often not trivial to Install / Configure
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• Game engine emerging as alternative to
expensive frameworks – Are almost
standard in research today
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Download and install – Break - EdupARk & Unity
http://edupark.web.ua.pt/
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https://play.google.com/store/search?q=edupARk
https://unity.com/
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z
deti departamento de electrónica telecomunicações e informática universidade de aveiro
Projects in Virtual and
Augmented Reality@DETI
Paulo Dias
RVA 2019-2020
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Motivations for VAR projects
• Foster R&D in Virtual and Augmented
Reality areas
• Investigate new interaction and navigation
techniques
• Devise and demonstrate new scenarios for
the use of these technologies
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Environment to configure RVA environment
Mestrados:
Danilo Souza
João Parracho
João Cardoso
João Pinto
Luis Afonso
Sérgio Eliseu
2013-2016
Interaction in Virtual reality
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pSIVE – Danilo Souza 2013/2014
• Platform for Setting up Interactive
Virtual Environments (pSIVE) 2013/2014
– Virtual Visits
– Training
– Marketing
• Easy Creation
• Abstraction Layer
– Users – Frameworks
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System Requeriments
• Hardware Independent
• Simple Configuration
– 3D Model Loading
– Attatch/Display Multimedia Information
– Technical aspects
– Reusable
• Well Defined Art Pipeline
– CAD softwares -> pSIVE
– Avoid calculations
• Cover part of IEETA’s devices
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Architecture
• VR Juggler– Qualities met project requeriments
– Active Community and Develop
– Well documented
• OpenSceneGraph (OSG)– Easy-to-work-with solution
– Books available
– Very active project
– Support vast list of formats/software• 3D Studio Max, SketchUp, Maya, Blender...
• Why not Game Engines?
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Platform Overview
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Multimedia Module
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Interaction Module
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Menu Module
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Case of Study
PRODUTECH-PTI / Tegopi
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VR for training and formation
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Update pSIVE – João Pinto 2014/2015
• Support for newer HMD’s (oculus rift)
– OpenScenGraph with osgOculusViewer
• Kinect support
– VRPN and FAAST
João Pinto 2014/2015
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Architecture
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VR – Full body interaction- 2015
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Interação em RV – Full body interaction
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Interação em RV – Manipulation
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Mobile Interaction – Luis Afonso 2015-2016
• Move to Unity
– Oculus, leap and Android support
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Architecture
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VR Interaction with mobile devices
1- tablet for tracking of marker on HMD - Oculus
2- Leap Motion for hand tracking mounted on HMD
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VR Interaction with mobile devices
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User evaluation in Virtual and Augmented Reality
2006-2007
Mestrado em Gestão de Informação:
Angela Pimentel Amado
Projecto de licenciatura:
Jan-Willem Baggerman
Pauline van der Horst
Frank van Huussen
User evaluation
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Virtual reality - User evaluation
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Virtual reality - User evaluation - results
• Objective: Test navigation and visualization
• Methodology: Quantitative and qualitative
• 44 users (12 women / 32 men);
2 environments
RV x DV- HMD - Monitor
- Mouse - Keyboard
- Tracker - Mouse
results
- Preference for RV environment;
- RV causes more dyziness and disorientation;
- navigationa and visualization easy in both;
- better performance in DV.
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2 Projectos 5º ano
Ricardo Casaleiro
Ricardo Seco
2006-2007
FCT Project
AcousticAVE – 2011-2014
Sound in VR
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Sound in VR
• Auralization in closed spaces• Use of HRTF
• Computation of first order reflections ( ray-tracing)
• Computation of RT 60 with differente materials
• Visualization and auralization in VR
environments
• VTK, sound processing libraries (PortAudio,
libSoundFile, ...)
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….(Burdea and Coiffet., 2003)
Stereo vs 3D Sound
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Software to edit
acoustic properties in
3D models to compute
reverberation times
Sound in VR
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3D reconstruction and auralization
Anta Pintada de Antelas
• Auralization with first order reflections and
HRTFs
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Auralization: Reflections
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Som directo
Primeiras reflexões
reverberação tardia
Tempo
dB
Tempo de reverberação
Atraso do som directo
Atraso das primeiras reflexões
Atraso das reverberação tardia
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Auralization final demo AcousticAVE project
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Bolseiros:
Bernardo Marques
João Alves
Tiago Araujo
Luis Afonso
Inês Cruz
2016-…
Augmented and Virtual Reality projects
Mestrados:
Ricardo Silva
Raphael Carvalho
Anna Andreikanich
Rafael Esteves
2017-…
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VR4Rehab - Rovisco Pais
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Continuous AR
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Task 1: Catch the pumpkin Task 2: Count the spider
Task 3: Content selection Task 4: Information gathering
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Continuous AR interfaces
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AR for maintenance
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AR for education
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• EdupARk
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Download and install - EdupARk & Unity
http://edupark.web.ua.pt/
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https://play.google.com/store/search?q=edupARk
https://unity.com/
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Unity Installation - Instalation
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• Unity Installation
• Unity Account Asset store
Questions?
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To do – Next week
• Install Unity
• Create Asset store account
• Remember to select for presentation:
– papers : IEEE VR2018, VRST, ISMAR / VR
– Or framework : Unreal, ARCore,
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The people!• Beatriz Sousa Santos
• Guilherme Campos
• Joaquim Madeira
• Samuel Silva
• Os muitos alunos que trabalharam nos projectos:– Ricardo Casaleiro, Ricardo Seco
– Gustavo Corrente, Ana Cantanhede
– Angela Pimentel
– Jan-Willem Baggerman, Pauline van der Horst, Frank van Huussen
– Mário Cruz e Paulo Moreira
– Rui Palha, Filipe Duarte, Igor Cardoso, Tiago Sousa, João Parracho, João Cardoso
– André Oliveira
– Danilo Souza
– José Mendes, João Rodrigues, Ricardo Silva, José Sequeira, Vasco Santos, Miguel Vicente, Joel Pinheiro, André Alves, Luis Morais
– João Pinto, Sérgio Eliseu, Luis Afonso, João Cardoso
– José Ferrão, Miguel Ferreira, Pedro Coelho, Rafael Almeida, Diogo Carvalheira
– Raphael Carvalho, Anna Andreikavich, Ricardo Silva, Rafael Esteves, Inês Cruz
– João Alves Bernardo Marques,
– ...
Thanks
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Questions?