Transcript The Traveling CANVAS - University of Illinois at Urbana

The Traveling CANVAS
Immersive Art takes to the Road
Hank Kaczmarski, Nicholas Duchnowski,
Abby Watt
April 2008
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
THE CAVE
FIRST DESCRIBED IN A PAPER
PUBLISHED IN
COMMUNICATIONS OF THE ACM
IN 1992
3-meter on a side structure
THREE REAR-PROJECTED
WALLS and FRONT-PROJECTED
FLOOR
(no rear wall or ceiling)
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
CAVE™ Technology
CAVE
Automatic
Virtual
Environment
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
THE CAVE
DRIVEN BY
SILICON GRAPHICS
SUPERCOMPUTER
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
THE CAVE
ACTIVE STEREO PROJECTION
96 to 120 frames per second are created by the
supercomputer, half drawn from each of the
left and right eye’s perspective. Called “framesequential active stereo” because the images
appear in left eye/right eye order more rapidly
than the human visual cortex can discretely
view the images due to liquid crystal electronic
(hence active) shutter glasses.
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
THE CUBE
FUNDED BY US NATIONAL SCIENCE
FOUNDATION MAJOR RESEARCH
INSTRUMENTATION GRANT IN 2000
Has six 3-meter square surfaces fully rearprojected
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
THE CUBE
DRIVEN BY
PC CLUSTER
WHICH
REPLACES A GRAPHICS SUPERCOMPUTER
1/20 THE COST
BETTER PERFORMANCE!
BETTER SCALABILITY
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
THE CUBE
DRIVEN BY
PC CLUSTER
ACTIVE STEREO
GENLOCKED AND FRAME
SYNCHRONIZED GRAPHICS
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
THE CUBE
ACTIVE STEREO PROJECTION
STILL MEANS A VERY EXPENSIVE PROJECTOR
EITHER CRT
WITH LOW LIGHT OUTPUT BUT NUMEROUS
RESOLUTION OPTIONS
OR
DLP WITH HIGH LIGHT OUTPUT BUT LIMITED
RESOLUTION CHOICES
BOTH CRT AND DLP PROJECTORS
FORCE HIGH MAINTENANCE COSTS ON THE USER
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
THE CAVE and CUBE
ACTIVE STEREO
PROJECTION MEANS
ACTIVE STEREO GLASSES
WHICH MEANS
ADDITIONAL
FINANCIAL AND
MAINTENANCE HEADACHES
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
PROJECT DRIVEN BY THE
DESIRES OF THE
ELECTRONIC ARTISTS ON
CAMPUS
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
GOALS:
•USE EXISTING GALLERY SPACE
•MAKE ENVIRONMENT RECONFIGURABLE
•MINIMIZE UP-FRONT COSTS
•MINIMIZE LONG-TERM MAINTENANCE COSTS
•MAKE SYSTEM ARTIST-FRIENDLY
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
CANVAS
AFFORDABILITY:
•USE COMMODITY COMPUTERS
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
…COMMODITY COMPUTERS
CONTAINING COMMODITY
GRAPHICS CARDS
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
AFFORDABILITY:
•USE COMMODITY COMPUTERS
•USE COMMODITY PROJECTORS
•USE PASSIVE STEREO PROJECTION (TWICE
THE NUMBER OF 1/30 THE COST
PROJECTORS)
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
LINEAR OR CIRCULAR
POLARIZED STEREO
PROJECTION
MEANS
MUCH LESS
EXPENSIVE GLASSES
(25X LESS EXPENSIVE)
Possibly less eye strain for
long-term viewing as
images are presented to
each eye continuously not
½ the time as in active
stereo video schemes
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
CANVAS
Three walls, no floor
projection
Obtuse-angled walls to allow
greater viewing space
but at the expense of a
somewhat less immersive
experience
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
CANVAS Gallery
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
ADAPT ACCEPTED
COMPUTER PLATFORMS
FOR INTERFACES
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
ADAPT ACCEPTED
INTERACTION DEVICES FOR
INTERACTION IN CANVAS
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
RENDER NODES
DRIVEN BY
PC CLUSTER
OPERATOR
CONSOLE
FILE SERVER
CIRCULAR POLARIZED
STEREO
PROJECTION
iPAQ
AUDIO
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GAMEPAD CPU
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Beckman Institute for Advanced Science and Technology
360 in CANVAS
Three walls
Six projectors
Obtuse-angled walls
to allow
greater viewing
space
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CANVAS
VOLUME RENDERING USING
HARDWARE ACCELERATION
UNIVERSITY OF SAO PAULO
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
Motion Capture in Virtual Enviroments
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
Creating Art with Programming
• Requires knowledge of:
– C++ or Python
– OpenGL
– Syzygy Distributed OS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
How Artists Create for a CANVAS
• Program/work with a programmer
• Use KAMScript
– Can import .obj models (from 3ds Max, Maya, etc)
– Can import .wrl VRML files (models and animations)
– Can create art using KAMscript commands
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
What is KAMScript?
•
•
•
•
Simple scripting language
Built with C++/OpenGL
Requires no programming experience
Open-source
• www.canvas.uiuc.edu/KAMscript
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
Example Scene
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Beckman Institute for Advanced Science and Technology
Creating Art with KAMScript
This scene is created with 33 lines of KAMScript code.
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
A History of New
Sumi Land (2007)
Nicholas Duchnowski
Crayon Land (2007)
Nicholas Duchnowski
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
What is an Icon? - Gallery
• Created by University law professor William Van
Hagey
– no programming experience
– first-time user of KAMScript
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
KAMScript Variations
MiXTAPEStry (2006)
University of Illinois at Urbana-Champaign &
Duke University
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
KAMScript Variations
Trees You Can’t
Climb (2006)
John Jennings
Damien Duffy
Nicholas Duchnowski
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
• Keep all of the application base developed in the
ten years from the the inception of the CAVE
through current Cube programs
• Keep all of the economy and usability built into the
CANVAS
• Add portability and reconfigurability
• Add an electronic docent
• Add fault tolerance
• Incorporate the technology into a larger museum
venue
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
The Traveling CANVAS
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
CALCULART
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CALCULART
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CALCULART
University of Illinois at Urbana-Champaign
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Beckman Institute for Advanced Science and Technology
CALCULART
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
Technology – 3D scanning
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
NextEngine 3D Scanner
• High-quality, low-size scans
• Relatively easy to use
– Difficulty with complex models
• Texture mapped models
– .OBJ file less than 5 MB
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
Regel (3.38 MB)
University of Illinois at Urbana-Champaign
Benign Orthanc (3.59 MB)
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Boy (2.63 MB)
Twirl (1.65 MB)
Corrupt (2.11 MB)
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
Scan Textures
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology
Acknowledgements
We would like to thank Rose Marshack, Kathleen
Harleman, Benjamin Schaffer, Jim Crowell, Camille
Goudeseune, Jim Farrar, Debbie Carrier, George
Francis, and Gene Jenneman for their support.
http://www.isl.uiuc.edu/canvas
http://canvas.uiuc.edu/KAMScript
University of Illinois at Urbana-Champaign
www.isl.uiuc.edu
Beckman Institute for Advanced Science and Technology