Introduction to the XVR technology: an overview Franco Tecchia - - PowerPoint PPT Presentation

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Introduction to the XVR technology: an overview Franco Tecchia - - PowerPoint PPT Presentation

Sep 16, 2022 345 likes •622 views

Introduction to the XVR technology: an overview Franco Tecchia franco@sssup.it VR installations can be complex systems Integration is hard: many aspects to tackle, Integration is hard: many aspects to tackle, many subtle many subtle

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Introduction to the XVR technology: an overview

Franco Tecchia franco@sssup.it

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VR installations can be complex systems

  • Integration is hard: many aspects to tackle,

Integration is hard: many aspects to tackle, many subtle many subtle details easy to overlook details easy to overlook

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The complexity is intrinsic

VR App Haptic Interaction Real-Time Graphics Positional sound Collision Detection Physics Engine Network communication

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Writing VR applications is an hard task

  • Often require good C++ skill and a deep knowledge of

Often require good C++ skill and a deep knowledge of several HW technologies (video/audio/haptic) several HW technologies (video/audio/haptic)

  • Plenty of tools available, but mixing them is no trivial.

Plenty of tools available, but mixing them is no trivial. Also, Hi-performance tools and libraries need to be Also, Hi-performance tools and libraries need to be properly handled (otherwise performances might suffer) properly handled (otherwise performances might suffer)

  • Multidisciplinary: Team-work is a necessity

Multidisciplinary: Team-work is a necessity

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3D @ PERCRO

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XVR: An IDE for VR applications

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What is XVR

  • A fully integrated development environment

A fully integrated development environment

  • JAVA-like programming language (but VR-oriented)

JAVA-like programming language (but VR-oriented)

  • Using precompiled byte code (like JAVA)

Using precompiled byte code (like JAVA)

  • The IDE integrates a very fast compiler

The IDE integrates a very fast compiler

  • The virtual machine is an ActiveX component

The virtual machine is an ActiveX component

  • Applications can be embedded inside web pages

Applications can be embedded inside web pages

  • Data exchange with JavaScript, VBScript, Flash etc

Data exchange with JavaScript, VBScript, Flash etc

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Why to use a scripting language for VR?

  • Because C++ is not always needed

Because C++ is not always needed

  • C++ is very powerful and flexible, but also very generic

C++ is very powerful and flexible, but also very generic

  • Development environment hard to install and maintain

Development environment hard to install and maintain

  • Mixing, linking, wrapping up can easily become a

Mixing, linking, wrapping up can easily become a nightmare nightmare

  • Sharing code is hard (includes/dependencies)

Sharing code is hard (includes/dependencies)

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XVR Workflow

Compiler

Interpreter (Virtual Machine) Dedicated scripting language Output Binary ByteCode

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Why was the project started? (2001)

  • Bringing advanced 3D applications on the web

Bringing advanced 3D applications on the web

  • High-performance VR software inside a web browser

High-performance VR software inside a web browser

  • Not a designer tool, but a programmer tool

Not a designer tool, but a programmer tool

  • Advanced functionalities

Advanced functionalities

  • Lot of flexibility

Lot of flexibility

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A WEB-enabled technology…

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…controlling VR installations

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3D graphics for Cultural Heritage

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3D graphics for motion-based Simulators

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Industrial Applications

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Co-located Manipulation of CAD data

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Hi-quality Virtual Environments Rendering

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Vertex and Fragment Shaders

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Real-Time Medical Imaging

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Advanced VR Installations

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XVR Network Renderer

CRT project or Screen Screen Sc reen CRT projec t or CRT project or Et hernet

VRlib Client VRlib Servers

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XVR Network Renderer

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XVR Network Renderer

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Installation example

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XVR Network Renderer (CAVE)

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Augmented Reality

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AR - Assistant