3D Workstation
OPERATOR’S AND TROUBLESHOOTING MANUAL
Steven Miller, System Analyst II
UNIVERSITY OF TEXAS AT SAN ANTONIO | ONE UTSA CIRCLE, SAN ANTONIO, TEXAS 78249
LAST MODIFIED:
9 JULY 2013
3D Workstation Manual
Table of Contents
Introduction .................................................................................................................................................. 3
Equipment ..................................................................................................................................................... 3
TV .............................................................................................................................................................. 4
Images of 3D TV .................................................................................................................................... 4
3D TV Description ................................................................................................................................. 5
Computer .................................................................................................................................................. 6
Image of Computer ............................................................................................................................... 6
Computer Description ........................................................................................................................... 6
Computer Technical Specifications ....................................................................................................... 6
NVIDIA 3D Vision ....................................................................................................................................... 7
Images of NVIDIA 3D Vision .................................................................................................................. 7
NVIDIA 3D Vision Description ............................................................................................................. 11
SensAble Phantom Omni ........................................................................................................................ 12
Image of Phantom Omni ..................................................................................................................... 12
Haptic Description............................................................................................................................... 12
Apple TV .................................................................................................................................................. 13
Images of Apple TV ............................................................................................................................. 13
Apple TV Description........................................................................................................................... 14
Audio and Sound ......................................................................................................................................... 15
Images for Audio and Sound ................................................................................................................... 15
Audio Directions...................................................................................................................................... 18
Starting the 3D TV ....................................................................................................................................... 19
3D TV Directions...................................................................................................................................... 19
Turning ON/OFF the Television ........................................................................................................... 19
Setting the 3D Mode of the Television ............................................................................................... 20
Switching between the Computer and the Apple TV or other devices .............................................. 21
Starting the Computer ................................................................................................................................ 23
Computer Directions ............................................................................................................................... 23
Preparing for a Demonstration ................................................................................................................... 24
Images for Demonstration Preparation .................................................................................................. 24
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Directions for Setting-Up 3D TV workstation for demonstrations ......................................................... 27
Directions for obtaining the demonstration shortcuts onto your desktop ............................................ 27
General Demonstration .............................................................................................................................. 28
NVIDIA 3D Vision Photo Viewer .............................................................................................................. 28
Image of Photo Viewer ....................................................................................................................... 28
Directions for Photo Viewer................................................................................................................ 28
NVIDIA 3D Vision Video Player ............................................................................................................... 29
Images of Video Player........................................................................................................................ 29
3D Video Player Directions ................................................................................................................. 36
3D Video Player Demonstration ......................................................................................................... 37
PyMOL ..................................................................................................................................................... 39
Visible Ear Simulator ............................................................................................................................... 49
3D Human Body ...................................................................................................................................... 56
3D Haptic Demos .................................................................................................................................... 58
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Introduction
Center for Simulation, Visualization, and Real-Time Prediction, “SiViRT”, is NSF funded research center at
UTSA. Advanced Visualization Laboratory, “VizLab”, is the core and only facility managed by SiViRT. 3D
TV workstation is one of the many workstations presented during a demonstration of the VizLab’s
available technological capabilities and services. 3D haptic simulations and 3D models or 3D simulations
of data are presented on this workstation. A lot of SiViRT sponsored research incorporate 3D
simulations, 3D haptic technology, or 3D models in the final stages of the research project. The VizLab is
used as an area for team collaboration between students, faculty, and industry.
Equipment
Before demonstrating the 3D visual and 3D haptic capabilities of the Advanced Visualization Laboratory,
the presenter needs to be familiar of the equipment. This section is about the major components of the
3D workstation. This station is located in the Advanced Visualization Laboratory (VizLab) to the left of
the Visualization Wall (VizWall). An image and description will be provided for each component.
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TV
The main largest component of the 3D workstation is the 82” 3D DLP Plasma TV.
Images of 3D TV
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This is the remote for the 3D TV.
3D TV Description
The 3D TV workstation stands in the far left corner of the Advanced Visualization Laboratory. It stands
left of the Visualization Wall. It’s an 82” DLP HDTV. The make and model of the TV is Mitsubishi WD82838. It’s 3D capable. The serial number is 10246 and the UTSA Asset tag number is 158632.
Website:
http://www.mitsubishi-tv.com/tv/wd-82838
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Computer
The brains of this 3D workstation is the computer.
Image of Computer
Computer Description
In the summer of 2013, a new workstation was purchased for the 3D TV workstation. The model and
make of the workstation is DELL Precision T1650. The DELL service tag is 5KV3GX1. The UTSA asset tag
number is 164621. It is located under the table on the left hand side. The computer name is
RR164621IP01. The MAC address is B8 : CA : 3A : 87 : BA : 54. There is no static IP address for this
workstation since it has DHCP addressing enabled.
Computer Technical Specifications
RAM: 8 GB
Processor: Intel i5-3550, 3.3GHz
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Graphics: 4 GB NVIDIA Quadro K600
NVIDIA 3D Vision
3D capabilities are provided by the NVIDIA 3D Vision IR emitter and eye wear.
Images of NVIDIA 3D Vision
The image above is the Apple TV (on left) and the NVIDIA 3D Vision Emitter (on right).
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The image above is the 12 NVIDIA 3D glasses.
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This is the current system setup of the NVIDIA 3D Vision being used.
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This diagram shows how to use and charge the batteries of the 3D glasses.
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NVIDIA 3D Vision Description
The small device shown in the first image is the 3D emitter. It is an infrared light emitter for the glasses.
The emitter is connected to the TV by the VESA 3-pin stereo cable and connected to the computer by
the USB cable. The glasses are powered by rechargeable batteries. To charge the 3D glasses, connect the
glasses by USB to a computer to charge its power.
NVIDIA 3D Vision Website:
http://www.nvidia.com/object/3d-vision-main.html
NVIDIA 3D Vision Quick Start Manual:
http://www.nvidia.com/content/3dvision/docs/GeForce_3DVision_QSG_Booklet_NoBarcode_Dec08_Sc
reen.pdf
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SensAble Phantom Omni
One of two haptic devices here in the VizLab. The haptic devices is what makes this visualization
laboratory unique in Texas. UT Austin’s TACC, a center similar to our SiViRT, does not have haptic
capabilities.
Image of Phantom Omni
Haptic Description
A haptic device is a device that has tactile feedback technology which takes advantage of the sense of
touch by applying forces, vibrations, or motions to the user. Haptic is from the Greek word “haptesthai”
which means “touch”. The model and make of the haptic device is SensAble Haptic Phantom Omni. It’s
connected to the computer by IEEE 1394 (FireWire) cable. It has its own power supply. It requires the
OpenHaptics to work.
SensAble Haptic Phantom Omni Website: http://www.dentsable.com/haptic-phantom-omni.htm
OpenHaptics Website: http://www.dentsable.com/products-openhaptics-toolkit.htm
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Apple TV
This is the newest addition to the 3D workstation. This device allows users to mirror their apple devices
on the 82” TV screen.
Images of Apple TV
The Apple TV is the device on the left without the green light.
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This is the Remote for the Apple TV.
Apple TV Description
Apple TV is a device that allows the user to share their screens of apple devices with the television.
Apple TV is a device to provide “Smart TV” capabilities to a regular television. The model number is
MD199LL/A. The serial number is DY5JM8UJDRHN. The MAC is 7C:D1:C3:17:E7:AB. “VizLab Apple TV” is
the device name.
Apple TV Website:
http://www.apple.com/appletv/what-is/
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Audio and Sound
The Advanced Visualization Laboratory is equipment with a surround sound audio system. The 3D
workstation is connected to this system. During video teleconferencing or movie viewing, the 3D
workstation should utilize the surround sound. This section will provide instructions in completing this
task as well as familiarity of the equipment.
Images for Audio and Sound
This image shows the cables that should be connected to the back of the television.
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This image is the rear connection panel of the television. CENTER INPUT is where the room surround
sound connects to the television. HDMI-2 connects the television to the audio and video from the
computer. HDMI-3 connects the television to the audio and video from the Apple TV.
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Under the telephone is the surround sound controller box for the VizLab. Make sure that the input 3 is
selected and the volume is turned up.
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This image in the rear view of the surround sound control box for the VizLab. Make sure that the large
sliver audio cable is connected to audio port 3.
Audio Directions
1. Make sure that all the cables are connected.
2. Make sure the devices are all turned ON.
3. Make sure that the surround sound controller as 3 selected as input.
1. Surround sound controller is located on NEMO’s desk.
4. Make sure that the volume is turned ON and not muted.
5. Make sure that the surround sound controller volume nob is turn up.
1. Clockwise – Increases Volume
2. Counter-clockwise – Decreases Volume
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Starting the 3D TV
The 3D TV is NEVER left on. Its turned on only when in use and turned off at the end of the day. This
section provides instructions in setting up the television in case someone else changes the
configurations and settings of the TV or the configuration gets erased.
3D TV Directions
Turning ON/OFF the Television
1. Using the television remote and press the POWER button. The television screen will turn blue first
then the computer screen will show.
2. To turn off the television, press the POWER button using the television remote.
3. The television will automatically turn off during sleep mode of the computer.
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Setting the 3D Mode of the Television
Television Menu showing the enhanced 3D options
Television Menu showing the 3D Mode options
1.
2.
3.
4.
5.
6.
7.
Press the MENU button on the Television Remote.
Press the right arrow on the Television Remote to select 3D Mode.
Press the down arrow on the Television Remote to select Checkerboard
Press ENTER button on the Television Remote.
Press EXIT button on the Television Remote.
Glasses L-R needs to be set to Standard.
Glasses Control needs to be set to IR Emitter
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Switching between the Computer and the Apple TV or other devices
This image shows the Menu that appears when you press the INPUT button on the television remote.
HDMI-2 is the input source for the computer.
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This image show what happens when you press the arrow key from HDMI-2 to HDMI-3. HDMI-3 is the
input source for the Apple TV.
1.
2.
3.
4.
Make sure that the computer, Apple TV or other device connected to the television is ON.
Make sure that the television is ON.
Press the INPUT button on the television remote.
Use the arrow keys to select the source input.
a. HDMI-2 is the computer
b. HDMI-3 is the Apple TV
5. Press the EXIT button on the television remote.
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Starting the Computer
The computer should NEVER be turned off. The causes for the computer being off is a loss of power,
someone turned off the computer, or someone locked the computer and shutting down the computer is
the only option.
Computer Directions
1. Make sure that the computer is turned ON.
2. Press the CTRL, ALT, and DELETE button at the same time on the keyboard.
a. This should bring you to the login screen of Windows 7.
3. Type in your abc123 username and password
4. DO NOT lock other users from using the computer.
a. Always log off the computer after the completion of the demonstration.
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Preparing for a Demonstration
The main audience of this document are individuals that will be preforming demonstrations in the
Advanced Visualization Laboratory. This section will instruct the user how to prepare the 3D workstation
for a generalized demonstration of the 3D visual and 3D haptic capabilities of the Advanced Visualization
Laboratory. This section will provide instructions and images in how to prepare for a demonstration.
Images for Demonstration Preparation
This is Windows 7 bottom navigation bar. Select the folder icon.
This is the Libraries folder once the folder icon is clicked. This is where the Documents folder resides.
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This is the Public Documents folder where the “Copy Me To Desktop” folder resides. The Public
Documents folder is located under the Documents folder.
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These are the shortcuts that need to be copied to the desktop for a demonstration. These shortcuts are
located in the “Copy Me To Desktop” folder.
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Directions for Setting-Up 3D TV workstation for demonstrations
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Make sure the computer and the television is turned ON.
Make sure the television is displaying the computer screen.
Make sure the computer is logged in.
Turn off the lights overhead of the television.
Dim the lights in the VizLab.
Make sure the demonstrations shortcuts are on your desktop.
Start PyMOL.
Start Video Player with a loaded 3D image.
Have the 3D Haptic Demonstrations folder open.
Minimize everything.
Maximize each demonstration at the time of beginning demonstrated.
Directions for obtaining the demonstration shortcuts onto your desktop
If it is the first time an individual is presenting on this new system, the shortcuts will not be located on
the individual’s desktop.
1.
2.
3.
4.
5.
6.
Double click on the folder icon on the Windows 7 bottom navigation toolbar.
The Libraries folder window appears.
Double click on the icon for Documents folder.
Double click on the icon for Public Documents folder.
Double click on the icon for “Copy Me To Desktop” folder.
Copy the shortcuts to your Desktop.
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General Demonstration
This section is very important. It provides specific instructions of each demonstration as well as images
to familiar the presenter with the demonstration.
NVIDIA 3D Vision Photo Viewer
Do not use this program. It is full of bugs. At one time, this program was used to demonstrate 3D
images. Now NVIDIA 3D video player can also display images. Use NVIDIA 3D Vision video player instead.
Image of Photo Viewer
This is the icon for NVIDIA 3D Vision Photo Viewer.
Directions for Photo Viewer
1. DO NOT USE.
2. Use NVIDIA 3D Vision Video Player instead.
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NVIDIA 3D Vision Video Player
This is the first program used during the demonstration. Unlike in the past, PyMOL does not need to be
running to enable the 3D capabilities of the 3D video player. This section will provide the presenter
images to get familiarized with the general demonstration, instructions in how to perform the
demonstration, and a general knowledge about the pictures and videos to conduct a knowledgeable
discussion during the demonstration.
Images of Video Player
This is the shortcut to the 3D Vision Video Player.
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This is the NVIDIA 3D Vision Video Player application once opened.
NVIDIA 3D Video Player supports viewing 3D Photos as shown here.
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NVIDIA 3D Vision Video Player supports viewing 3D videos. Additional codecs may need installed.
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This is a 3D simulation created by Trey Fawcett, a SiViRT-sponsored graduate student of Mechanical
Engineering. He has now graduated and works in industry.
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This is the Libraries folder. This folder contains the Pictures and Videos folders.
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This folder contains the 3D photos under several folders.
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This folder contains the 3D videos under several folders.
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3D Video Player Directions
1. Double Click on the 3D Video Player Shortcut.
2. Under the File Menu, Select “Open File…” or select the name of a recently viewed file.
a. 3D Photos are located in the “Public Pictures” folder.
1. This folder is located in the “Pictures” folder under “Libraries”
2. Several folders of 3D pictures are located under this folder.
b. 3D Movies are located in the “Public Videos” folder.
1. This folder is located in the “Videos” folder under “Libraries”
2. Several folders of 3D movies are located under this folder.
3. Put on the 3D glasses.
4. Push Play if the file is a 3D Video.
5. Under the View Menu, Select “Swap Left/Right” if the 3D photo or 3D view seems distorted.
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3D Video Player Demonstration
Use this section as a guide. There are two parts; 3D photos and 3D videos.
3D photos
This section gives a brief overview of the photos used in a generalized demonstration.
CURTIN
These underwater photos were taken by researchers at Curtin University of Technology, Perth, Western
Australia. These photos are part of the stereoscopic research conducted by Curtin University’s Centre
for Marine Science and Technology (CMST).
Website:
http://cmst.curtin.edu.au/
3D SAE
UTSA SAE is a student professional organization for engineering students at UTSA. SAE stands for the
Society of Automotive Engineers. UTSA SAE competes in an international formula-style race
competition. The car for this event is designed, developed, built, and maintained by the student
members of SAE.
Website:
http://www.roadrunner-sae.com/
3D UTSA Campus
This is a collection of 3D photos taken at various locations on the 1604 campus of UTSA.
3D Photos Demo
This is a collection of 3D photos. This collection includes photos of the Alamo in downtown San Antonio,
the San Antonio River Walk, the River Center Mall, UTSA 1604 campus, and photos of UTSA SAE race car.
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3D Videos
This section gives a brief overview of the videos used in a generalized demonstration.
Trey Fawcett
These are 3D video simulations of the graduate work of Trey Fawcett (Mechanical Engineering). He
presented his defense on November 7, 2012. His research was titled, “Using Distributed Intelligence to
Control an Arbitrary Number of Collaborative Hyper-Redundant Serial Manipulators in Real-Time.” Serial
Manipulators are robotic arms. Trey was researching a distributed method in controlling serial robotic
arms that have serial links or joints. Current methods fix these joints. Trey’s method utilizes all the links
in the robotic arm. He created four videos.




fingertip – Fingertip grasp
force_closure – Force Closure grasp
collaborative – synchronous control between manipulators
obstacle – 3d position and orientation control with obstacle
3D Robots
These are 3D videos taken of DR Brent Nowak’s Robotics and Intelligent Machines Laboratory at the
College of Engineering. These robots and DR Nowak’s laboratory are part of the CAMLS Center (Center
for Advanced Manufacturing and Lean Systems).
Walking Videos
These are 3D videos taken of UTSA 1604 campus.



DSCF0324 – Skywalk located near the UC building
DSCF0325 – students located behind the MS building
DSCF0326 – behind the BSE building?
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PyMOL
PyMOL is an open-source software use to render and animate molecular structures in 3D. It’s one of
few open-source visualization tools available for structural biology. It’s developed using Python
programming language by Warren Lyford DeLano.
It’s available free to download at:
http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymol
http://pymol.org/educational/
In case the shortcut is missing, the simulation can be reached from the Windows 7 start menu. Go to All
Programs. Click on PyMOL. Click on the folder “Stereo 3D Launch”. Double click on the PyMOL Default
3D (Quad-buffer).
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PyMOL Images
This is the PyMOL shortcut.
This is the Display Menu of PyMOL. Stereo is highlighted.
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Once Stereo is selected, a check mark will appear before the word “Stereo”.
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This is the hierarchical pathway to start the PyMOL demonstration wizard.
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This image shows the Representation PyMOL demonstration.
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This is the PyMOL Cartoon Ribbons Demonstration.
PyMOL Directions
1. Double Click on the PyMOL Shortcut.
2. Under the Display Menu, Select Stereo. Now, Stereo will have a check mark in front of it. This
enable stereoscopic 3D capabilities.
3. Under the Display Menu, go to the Stereo Mode Menu, and select Swap Slides.
4. Under the Wizard Menu, in the Demo Menu select “Representations”.
5. Put on the 3D glasses.
6. On the right side Demonstration Menu, select different demonstrations to change between
PyMOL models.
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PyMOL Demonstration
PyMOL is used to demonstrate the 3D capabilities of the Advanced Visualization Laboratory. Currently
all the demonstrations are provided free by the makers of PyMOL. The PyMOL demonstration requires
good coordination of the wireless mouse.
To zoom in and zoom out on a PyMOL demonstration, hold the trigger and right mouse button, then tilt
the wrist up and down.
To rotate or spin a PyMOL demonstration, hold the trigger and left mouse button, then move the wrist.
To make parts of the PyMOL demonstration disappear or reappear, click on the demonstration with the
trigger button then scroll up and down with the scroll wheel of the mouse.
Representations
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Cartoon Ribbons
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CGOs
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Molscript / R3D Input
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Visible Ear Simulator
This software was not developed by UTSA. This was developed by the University of Copenhagen,
Denmark and the Alexandra Institute. It is a fully functional 3D simulator for temporal bone drilling. It’s
free to download.
This simulator uses the SensAble Phantom Omni haptic device. This simulator is not truly 3D like the 3D
haptic demonstration Ehren Biglari modified.
Website:
http://www.daimi.au.dk/~trier/VES_blog/?page_id=11
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Visible Ear Simulator Images
This is the Virtual Ear Simulator Shortcut.
This is the Visible Ear Simulator application window.
This is the “Start Surgery” button.
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Before haptic mode, the ear model changes. Press the space bar to enter haptic mode.
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Once a drill is selected, Press the up arrow or down arrow to change the size of the drill head.
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This image shows a drill with a large drill head.
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Using the haptic device to navigate the drill and the dark gray button to activate the drill, modify the
model with the drill.
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Virtual Ear Simulation Directions
1. Double click on the shortcut icon.
2. Press the “Start Surgery” button with the mouse.
3. Press and hold the CTRL button to select a drill.
a. Use the haptic arm to pick between the different drill options.
4. Begin drilling.
a. The haptic arm navigates the drill through the ear model.
b. The dark gray haptic button activates the drill by holding the button down.
Virtual Ear Simulation Demonstration
This is an interactive haptic simulator which includes sound. This simulation demonstrates the medical
applications of a haptic device, such as robotic surgery interface. This simulation demonstrates the
medical training application of a haptic device and simulation as well. This demonstration can be shown
to k-12 students, guest with a medical background, and VIP visitors.
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3D Human Body
This is a human kidney biopsy training simulator created by Ehren Biglari, a graduate SiViRT-sponsored
computer science student. This demonstration renders in 3D using the NVIDIA 3D Vision glasses. This
demonstration use the SensAble Phantom Omni haptic device. The human 3D models were provided by
a 3D human anatomy library purchased by DR Yusheng Feng.
3D Human Body Images
This is the shortcut for the 3D Human Body.
This is a large and complex 3D haptic demonstration. This window will be shown first prior to the actual
3D human model.
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This is the actual 3D haptic human model.
3D Human Body Directions
1.
2.
3.
4.
5.
Double click on the 3D Human Body shortcut icon.
Put on the 3D glasses.
Move the biopsy needle with the haptic arm.
Press the dark gray haptic button to enable and disable the virtual laser tracking.
Use the mouse to rotate the model.
3D Human Body Demonstration
Ehren Biglari, a SiViRT-sponsored graduate computer science, developed this 3D haptic simulator. Ehren
developed this simulator using the Chai3D open-source haptic library and SensAble OpenHaptics Toolkit.
It’s written in C programming language and compiled in Microsoft Visual Studio 2010. His task is to
create a training simulation using the Phantom Omni haptic device for kidney tissue biopsy procedure.
This simulation was validated by a doctor from UTHSC San Antonio.
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3D Haptic Demos
These are modified haptic demonstrations provided by Chai3D. http://www.chai3d.org/ The only
difference between these original demonstrations and these modified demonstrations is that Ehren
Biglari modified these haptic demonstrations to be viewable in 3D by the NVIDIA 3D glasses.
3D Haptic Images
This is the 3D Haptic Demonstration shortcut.
The square shape icon is the actual haptic demonstration. These haptic demonstrations are located in
the 3D Haptic Demo folder. “52-GEL-duck” is the rubber duck haptic demonstration.
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This the folder with the 3D haptic Demonstrations.
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This is the rubber duck demonstration.
3D Haptic Directions
1. Double click on the 3D Haptic Demos shortcut icon.
2. Double click on any of the square shape icons in the 3D Haptic Demos folder.
a. Return to the Images section for an example of the square shape icon.
3. Put on the 3D glasses
4. Use the haptic device to interact with the virtual 3D environment.
5. Exit out of current demonstration to start a new one.
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3D Haptic Demonstrations
This is a list of 3D haptic demonstrations that are commonly used. Other haptic demonstration do exists
as well as 2D haptic demonstrations.
23 – tooth
This haptic demonstration shows a transparent rendering of a tooth. Using the haptic arm and pressing
the dark gray haptic button, the tooth can be moved and rotated in the virtual 3D environment. This
demonstration was provided free from the Chai3D library. This demonstration can be considered a tooth
cleaning or tooth drilling simulator for dental students.
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25 – cubic
This haptic demonstration shows 3D cube. Using the haptic arm, the cube can rotate and spin on several
different axial directions. Using the haptic arm and pressing the dark gray haptic button, the cube can be
stopped immediately. This demonstration was provided free from the Chai3D library. This
demonstration shows human interaction in a 3D virtual environment using a haptic device.
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40 – ODE – cube
This demonstration illustrates the use of the Open Dynamics Engine (ODE) of Chai 3D. Each cube has
defined physical properties. The program compute the interaction forces between the cursor tool and
the cubes. Press the “1” on the keyboard to enable gravitational force. Press the “2” on the keyboard to
disable gravitational force. By placing the cursor tool on the surface of a cube and then press and hold
the gray haptic button, cubes can be carried by the cursor. Once the gray haptic button is released, the
cube is released. This demonstration was provided free by the Chai3D library.
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50 – GEL – membrane
This demonstration illustrates the use of the GEL dynamics engine developed by Stanford University. The
membrane or JELLO cube model actually has an invisible skeleton of spheres linked together by elastic
links inside the mesh model. This assist in the simulation of the dynamic behavior of the deformable
membrane. The mesh shape is updated at every simulation cycle. This demonstration was provided free
by Chai3D library.
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51 – GEL – cell
This demonstration illustrates the use of the GEL dynamics engine developed by Stanford University. It’s
an artistic view of a cell. Instead of one complex structure in the membrane demonstration, the cell has
several complex structures inside a single structure. Each structure has its own invisible skeleton of
spheres. Collision detection between objects is determine by collisions between their skeletons. This
demonstration was provided by Chai3D library. This demonstration is shown to guests and students
interested in medicine and biology.
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52 – GEL – duck
This is a frequently used demonstration and well enjoyed by many. The cursor can be moved under
water as well as through the air of the virtual environment. In the water, resistance simulates the
water’s velocity. Unlike the hard simulated surface of the tooth’s enamel, the surface of the duck is
elastic and interacts with the cursor. By placing the cursor under the duck and moving the cursor up, the
duck can be propelled into the air or flip. This demonstration was provided free by Chai3D library.
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