Remote Visualization In PIG Personal Interface to the AG Project Final Report Report

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Remote Visualization In PIG(Personal Interface
to the AG) (Project Final Report Report 7)
K-JIST DIC 1623 Networking Application Design
Fall 2002

• DIC/20024026/Jaeyeon Lee
• (jylee_at_netmedia.kjist.ac.kr)

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Motivation

• Spreading virtual collaborative environment
• Different user environment
• Not enough high computing power

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PIG in KJIST

• AG Toolkit 1.2 release
• Distributed PowerPoint / Remote PowerPoint
• Multicast Beacon
• Visualization Toolkit

4 Nov., 2002
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Goal

• Personal Interface to the Access Grid
• Sharing PowerPoint
• Visualization ToolKit
• Make more immersive virtual collaborative
  environment with less cost as much as possible

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Proposed Framework

• AG Toolkit 1.2 release
• DPPT/RPPT
• Visualization Toolkit
• Networked Collaboration with 3D data with
  reasonable price

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Involved Techniques

• How to capture VTK image?

Sender with VTK
Receiver without VTK
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VTK (Visualization Tool Kit)

• Freely available software system for 3D computer
  graphics
• Toolkit Architecture
• C class library
• Several interpreted interface layers
• including Tcl/Tk, Java, and Python

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Videoconferencing Tool

• Based on multicast
• Core part (C) interpreter (Tcl/Tk)
• Usage in Prompt window
• C\foldergt Vic dest. IP addr/Port
• Important collect appropriate component for
  users platform purpose

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Proposal Approach

• Finding appropriate source of vic
• Analyze source codes of VTK vic
• Making new module video-VTK.cc
• Adding my code to video-test.cc
• 3D is NOT a pixel value like 2D image
• Use DirectX as input device

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1.Finding appropriate source of vic

• Change source code ? re-build all!
• AG ver1.2
• Already packed ? not separate!
• Vic from UCL(University Collage London)
• Linux targeted source code ? not available!
• OpenMash Project
• Build in Window platform ? OK!

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2.Analyze source codes of VTK vic

• C Classes of OpenMash vic
• VideoCapture
• VideoDevice
• Need to build a new subclass of each of these
• Customized for VTK

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3.Making new module video-VTK.cc

• Video-vtk.cc like examples
• Re-build
• Nothings changed!
• Adjust Makefile.vc
• Corresponding object file Video-vtk.o
• But, not succeed!

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4.Adding my code to video-test.cc

• Video-test.cc
• Image from file (.ppm)
• Blue screen
• Add new port VTK
• Coupling VTK with vic
• Problem!

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5.3D is NOT a pixel value like 2D image

• 2D bitmap image
• Each pixel value
• Memory copy
• 3D object image
• Not pixel value!
• How to copy this image?
• ? Problem have to solve!

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6.Use DirectX as input device

• Video-directX.cc
• Whole screen one bitmap image
• Add component
• Re-build
• Vic with DirectX
• component as an
• input device

vic
VTK
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Results

• AG ver.1.2. Toolkit
• DPPT/RPPT
• VTK with vic
• ? Immersive virtual collaborative environment
  with 3D image
• (no added price with 3D computing!)

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Review planned vs. achieved
Dec.
Nov.
Oct.
Sep.
H/W configuration
PIG installation
VTK structure Study
VTK example Testing
Rendering to vic Multicasting
Presentation



Documentation
Scheduled
Actually Spent
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Related Works - OpenMash

• Based on tools from Mbone
• sdr, nv, vic, vat, wb, etc.
• System programming language
• High-performance routines (C/C)
• Scripting language
• Interacting with user (Tcl/Tk/Otcl)
• Developing concurrently with AG

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Related Works - VTK/vic

• Chromium-vic Argonne National Laboratory
• Chromium (sourceforge.net/projects/chromium/)
• Transparent to most OpenGL applications
• Sort-first rendering
• Custom applications (Sort first, sort last,
  parallel constructs)
• vic same old vic

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Conclusion

• Personal Interface to the AG
• H/W specification
• S/W configuration installation
• Visualization Toolkit
• Configuration
• OpenMash vic
• DirectX device addition
• Rebuilding
• ? Make CVE with 3D without additional
  computing power or cost

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Future Works

• Move a pitch from center to upper left corner
• Change position with user
• Combine DirectX device into AG vic
• Remove unnecessary burden of configuration

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References

• Access Grid Homepage
• - http//www-fp.mcs.anl.gov/fl/accessgrid/
• VTK homepage
• - http//public.kitware.com/VTK/index.php
• L. Childers, T. Disz, R. Olson, M. E. Papka, R.
  Stevens, and T. Udeshi, Access Grid Immersive
  Group-to-Group Collaborative Visualization,"
  Proceedings of the Fourth International Immersive
  Projection Technology Workshop, June 19-20, 2000
• W. Schroeder, K. Martin, and W. Lorensen, The
  Design and Implementation of An Object-Oriented
  Toolkit for 3D Graphics and visualization
• OpenMash Homepage
• - http//www.openmash.org/about/index.html
• DirectX Homepage
• - http//www.microsoft.com/windows/directx/