Task Discussion

DAQE said:

From Wikipedia, the free encyclopedia

The Stanford Bunny rendered in YafRay.

The Stanford Bunny is a computer graphics 3D test model developed by Greg Turk and Marc Levoy in 1994 at Stanford University.

The Bunny consists of data describing 69,451 triangles determined by 3D scanning a ceramic figurine of a rabbit. The data can be used to test various graphics algorithms; including polygonal simplification, compression, and surface smoothing. By today's standards in terms of geometric complexity and triangle count, it is considered a simple model. There are a few problems with this dataset that can occur in any 3D scan data. The problems are that it is manifold connected, and that it has holes in the data (some due to scanning limits and some due to the object being hollow). Though being "problems", they provide a more realistic input for any algorithm that is benchmarked with this bunny.

The model was originally available in .ply (polygons) file format with 4 different resolutions, 69,451 polygons being the highest.

The Stanford Dragon consists of data describing 871,414 triangles- (contains 12.55 X the triangles of the bunny

on Feb. 19, 2013, 6:01 a.m.
Carl Heflin said:

The Stanford Bunny is a computer graphics 3D test model developed by Greg Turk and Marc Levoy in 1994 at Stanford University.

on Dec. 7, 2012, 4:19 a.m.
Angelshines said:

The Stanford Bunny is a computer graphics 3D test model developed by Greg Turk and Marc Levoy in 1994 at Stanford University.The Stanford Bunny is one of the most commonly used test models in computer graphics. It is a collection of 69,451 triangles, and it was assembled from range images of a clay bunny that is roughly 7.5 inches high. Below is a synthetic rendering of the model, courtesy of Peter Lindstrom.

The resulting model has come to be known as the Stanford Bunny. The original bunny still lives at Stanford.

Below is a color image of the original bunny, courtesy of Marc Levoy.

For more information check the following sites:

http://www.cc.gatech.edu/~turk/bunny/bunny.html

http://en.wikipedia.org/wiki/Stanford_Bunny

http://www.makerbot.com/blog/tag/stanford-bunny/

on Dec. 6, 2012, 10:10 a.m.
RCS said:

The Stanford Bunny is a computer graphics 3D test model developed by Greg Turk and Marc Levoy in 1994 at Stanford University.

on Nov. 28, 2012, 7:50 a.m.
Ash said:

http://www.google.ae/imgres?q=Stanford+bunny&um=1&hl=en&sa=N&biw=1024&bih=677&sout=0&tbm=isch&prmd=imvns&tbnid=0Nuo5Mqzz8h8RM:&imgrefurl=http://www-graphics.stanford.edu/courses/cs348b-competition/cs348b-05/forest/index.html&docid=67NYCAdR-nNPmM&imgurl=http://www-graphics.stanford.edu/courses/cs348b-competition/cs348b-05/forest/bunny-shell.jpg&w=800&h=600&ei=FpOWUICyLJKIhQfT4ICIBA&zoom=1&iact=hc&vpx=609&vpy=157&dur=935&hovh=194&hovw=259&tx=128&ty=113&sig=103643745815442496622&page=1&tbnh=150&tbnw=183&start=0&ndsp=14&ved=1t:429,r:3,s:0,i:77

The data can be used to test various graphics algorithms; including polygonal simplification, compression, and surface smoothing. By today's standards in terms of geometric complexity and triangle count, it is considered a simple model.

on Nov. 4, 2012, 11:10 a.m.
Leonie McGlashan said:

The Stanford bunny is a clay rabbit used for a scanning project by Turk and Levoy in 1994.

Its model was made publically available which has led to interesting variations by others on the the 3D image.

http://cgg-journal.com/2008-2/06/Figures/bunny-dual.png

on Nov. 4, 2012, 5:08 a.m.
Matija Šuklje said:

There is nothing much I can add about the Stanford Bunny that others haven’t already below other then it appears to be the 3D printer/scanner equal of the Utah Teapot and Suzanne.

Funilly enough I knew about Suzanne before I even knew that the famous teapot actually has a name.

http://en.wikipedia.org/wiki/Suzanne_%283D_model%29#Suzanne

Oh, and I found this bunny printed on a RepRap:

http://www.splitbrain.org/blog/2012-03/18-reprap_update

on Oct. 30, 2012, 8:21 p.m.
Mariano said:

In his habitat...

http://cdn-ak.f.st-hatena.com/images/fotolife/m/minami_SC/20070818/20070818184701.png

on Oct. 30, 2012, 7:13 a.m.
Busy Bee said:

As I explored the Stanford Bunny, I came across other figures and then was linked to a lego site where they tried to build it using legos.. NEAT idea to try in the class

on Sept. 26, 2012, 1:07 p.m.
coachnorm said:

Stanford Bunny - The Stanford Bunny is one of the most commonly used test models in computer graphics. It is a scanned bunny figure that provides the data describing 69,451 triangles of the scanned bunny. The original ceramic bunny is about 7.5' tall. It is used to test configurations and graphics algorithms, It was developed by Greg Turk and Marc Levoy in 1994 at Stanford University. (wkipedia)

It was created using a technique called range scanning at Stamford Univesity. Original paper is:

"Zippered Polygon Meshes from Range Images"

Greg Turk and Marc Levoy

Siggraph 94, pp. 311-318

on-line version of paper available here

I am a high school robotics teacher so I found the image below very ineresting:

Below is the orignial Bunny scanned:

on Sept. 16, 2012, 11:14 p.m.
zoro said:

on Aug. 31, 2012, 4:03 a.m.
applejux said:
ok, so I cheated and read trough all your posts and some points/discoveries/questions came up....

I enjoyed this video where you see the 3D hello world bunny made in a home porcelain printer

Do you need any 3D modelling skills to use a 3D printer? If so, what basic do you suggest for a dumb newbie?

Can you buy 3D printers? Where from?
on Aug. 22, 2012, 9:08 p.m.
dilys said:

you do not need 3D modeling skills to use a 3D printer, but of course knowing it is very helpful. It's the nicest if you go to a MakerFaire or somewhere there are 3DPrinter demos, best and fastest way to start.

I got my printer at a MakerFaire in Bay Area, and it is called MakerBot, which can be ordered online. There are many options, lots available online.

on Aug. 29, 2012, 12:25 a.m. in reply to applejux

applejux said:

do you have The Replicator?

on Sept. 1, 2012, 12:22 p.m. in reply to dilys
Yantho said:

Makerbot version in brass:

I never realized the bunny was the "Hello World" of 3D priting; very neat.

on Aug. 15, 2012, 9:59 p.m.
nicwn said:

So the Stanford Bunny was one of the earlier computer generated 3D test models. Used to test various algorithms, I guess because of its historical status, people are also using it to test 3D printers now. For example, a high res version here: http://www.thingiverse.com/thing:11622 and blogged on Makerbot's blog here: http://wiki.makerbot.com/forum/t-270404/

3D printed sample pic found on Thingiverse - http://www.thingiverse.com/thing:3731

on Aug. 15, 2012, 6:46 a.m.
Worms said:

The Stanford Bunny is a computer graphics 3D test model developed by Greg Turk and Marc Levoy in 1994 at Stanford University. The Bunny consists of data describing 69,451 triangles determined by 3D scanning a ceramic figurine of a rabbit

on Aug. 11, 2012, 4:26 a.m.
Timothy John Watts said:

This is the original image the bunny was scanned from.

on Aug. 8, 2012, 9:57 p.m.
Wasp said:

The Stanford Bunny is one of the most commonly used test models in computer graphics. It is a collection of 69,451 triangles, and it was assembled from range images of a clay bunny that is roughly 7.5 inches high. It was developed by Greg Turk and Marc Levoy in 1994 at Stanford University. The Stanford Bunny has been used extensively as a test model for various research projects in computer graphics. Topics of some of the research articles that use the bunny include polygonal simplification, compression, surface smoothing, non-photorealistic rendering, and texture mapping.

The Stanford Bunny is commonly used in 3D printing because it is fairly smooth, it has manifold connectivity, and it isn't too complex. The bunny is so smooth that there is a lot of redundant information in the original collection of triangles, so simplification and compression algorithms give wonderful results.

on Aug. 4, 2012, 3:05 a.m.

nicwn said:

Great summary!

on Aug. 15, 2012, 6:51 a.m. in reply to Wasp
Chintan9929 said:

Standford bunny is a graphic test..http://www.thingiverse.com/thing:11622

on July 23, 2012, 2:33 p.m.
Lynette Boyd said:

The Stanford Bunny is a computer graphics test model. The technique used is called range scan.

on July 19, 2012, 9:57 a.m.
Javier del Álamo said:

The Stanford Bunny is used as a test, but in thingiverse you will find a lot of tests that halp you to calibrate your printer

Here you will find the Stanford Bunny printed with one of the first Makerbot printers ;)

http://saalweachter.files.wordpress.com/2010/11/pb250739.jpg

on July 16, 2012, 7:10 a.m.