Hollow Face Sculpture? An Amazing T-Rex Illusion

I do not remember when, but a while back at either the MET art Museum or the DAM (Denver) I saw what is called a ‘hollow faced’ sculpture of a head.  It was really cool .  As I walked around it,  a number of times,  it seemed to track my movement.  It is hard to explain, but the second video will give you an idea of how it works.   It was basically in a negative of a sculpture or the mold, but as you move around, it  gave the illusion that it was a ‘typical’ sculpture . 

I just came across this video and had to share it, it works on the same ‘hollow face’ principle.   It is the Amazing T-Rex Illusion!   Check it out.  ~Cornell

Amazing T-Rex Illusion!


How it Actually Works. . .  It will make you laugh.

Playing with Shadow

A to Z by Kumi Yamashita 2011

I love light & shadow AND I love sculpture.   I have experimented a bunch with creating sculptures where the subject was the actual shadow not the sculpture.   Man, I love Yamashita work, make sure you check out his gallery too. 

I also came across this software that plays with shadow in a similar way.   The design examples that are used are a bit on the simple side, but it has potential.  Imagine what you could do with 3d modeling software and a 3d printer; it could be a lot of fun. 

Kumi Yamashita


Niloy J. Mitra, Mark Pauly

Shadow Art


To them, I said, the truth would be literally nothing but the shadows of the images. - Plato, The Republic

Shadow art is a unique form of sculptural art where the 2D shadows cast by a 3D sculpture are essential for the artistic effect. We introduce computational tools for the creation of shadow art and propose a design process where the user can directly specify the desired shadows by providing a set of binary images and corresponding projection information. Since multiple shadow images often contradict each other, we present a geometric optimization that computes a 3D shadow volume whose shadows best approximate the provided input images. Our analysis shows that this optimization is essential for obtaining physically realizable 3D sculptures. The resulting shadow volume can then be modified with a set of interactive editing tools that automatically respect the often intricate shadow constraints. We demonstrate the potential of our system with a number of complex 3D shadow art sculptures that go beyond what is seen in contemporary art pieces. 

<<  More  >>




Silhouettes Of Jazz

You also need to  check out this movie produced with the Shadow Art tool.


Composition and Chase Jarvis

Updated 12/31/13

One side of rendering that is rarely talked about is composition.  And since many of the schools have been dropping or lessening the traditional skills being taught, a big bummer,  is the quality of student renders are falling? Technically they are getting better, but so is the technology.  Schools are becoming and have been “profiteering”.  That might be a little harsh, but they are more attune to profits and less to educating.   I went to a session at SIGGRAPH where this exact topic was under debate.  The bulk of the students (paying majority) want to jump right in to 3d skipping the foundation courses.  AND this has impacted enrolment leading schools to change program requirements.  I think this is a shame, but just like Mac Donald's in France, despite the the anti-Mac Donald's sentiment, they are still selling millions of burgers.

With that rant over, I love Chase Jarvis.  He is a commercial photographer and is creating exceptional images.  I heard him speak a couple of years ago and then went to diner with him afterwards.   He is a dynamic speaker and has a unorthodox approach to his art form.  Also he has a 21st century outlook on marking.  Basically, he’s got some skills.   Check out his work and share it with your students.   http://www.chasejarvis.com

And here is a play-by-play of this shot: http://blog.chasejarvis.com/blog/2010/08/scotts-guest-post-play-by-play-post-production-on-this-popular-photo/#more-1903.

Photography is a great “homework” assignment to supplement your rendering curriculum.  It doesn’t have to be with a fancy SLR, just a simple digital camera.   With that said, it should be with a manual SLR, all the skills transfer.  It should even be a weekly assignment; composition is a skill and can’t not be taught over night.  The most important thing  is to be able to  “see” and unless you are looking, you will not see anything.  Not to sound too philosophical, but it all comes to practice and the more one looks for  or thinks about composition, the better their work gets.  ~Cornell  



Also check out his book . . .  The Best Camera Is The One That's With You: iPhone Photography by Chase Jarvis

My First iPad Painting - Wacom Creative Stylus

My wife gave me an iPad Air for Christmas and it is AWESOME!!!  I also got a Wacom Creative Stylus which works with the iPad.  I am still exploring the stylus’ potential, but this is my first tablet, so I am still just playing.  The first App I downloaded was Sketchbook Pro which I use the regular version in my classroom and painted a simple apple  . . . that kind of looks like a tomato. 

MyFirst-iPad-Painting-sm2So here is my review of the Wacom Creative Stylus in action with pressure-sensitivity!  It didn’t seem to work right out of the box, or so I thought.  Let me clarify, it functioned as a stylus, but I could not notice any pressure-sensitivity either in Bamboo Note or Sketchbook Pro.   The manual states that pressure sensitivity works though Bluetooth, so I tried to connect it to Bluetooth.  No Luck.  I am very new to the iPad, in fact I hadn’t connected it to anything yet.  I  tried to connect my iPad  to the sound system – no luck.  I assumed that my Bluetooth was not working, since it would not connect to anything??? I did a bit more research and couldn’t find muc h that would help.  Eventually, I got my iPad to connect, but it still wouldn’t connect to the Stylus. 

OK, this is what I was doing wrong. First the stylus doesn’t show up on the Bluetooth device list, no matter what you do and this threw me off qui a bit.  Second you have to tell each application what stylus you are using.  For Sketchbook Pro, got to ‘I’ symbol  for information on the top menu, then preferences, and change 3rd Party Pen Connection.  Even after setting it up correctly, the pressure-sensitivity still didn’t seem to work.  I was frustrated needless to say.  Then I played with pen setting and voila, it worked.  I was about to return the $99 stylus.

After I got it going . .  I was sold, but I really wanted to test it and painted an apple.  Hmm, so is it worth $100?  At this point, I would say, “Hell Yea!”  I have had almost every generation of Wacom’s Intous line, including the Cintiq.  Honestly, the (iPad or other) tablet will replace the drawing, tablet there is no question; this is the future.  It is not completely there yet, limited resolution, memory, high-end 3d capabilities, but this is the future.  What I really want to see is a high-end 3d application like Mudbox or Zbrush, on the iPad.  That will be an industry changer.   Or even a wireless connection to your main workstation so that it works like a Cintiq.  Now that would be awesome!

The Creative Stylus.  I read a few blogs out there and a lot of people complaining about the tip . . . I don’t have a problem with it. The flow is smooth enough, not as smooth as the Intous line, but certainly not a deal breaker.  The rubber is soft and they only give you a few, so I will predict that I will be buying a few more down the road; I will let you know how long they last.  They also sell a harder tip for writing, but I think I will just buy a cheap stylus for that, as opposed to switching the tip  and possibly loosing it.   Keep the Creative just for drawing!!!

Another blogger was complaining about the fact that the pen was not rechargeable, well it lasts for over 150 hours and batteries are about $1.50 each???  Rechargeable devices that small never seem to last very long, so I bet it would be more frustrating to find that your battery is out again than just popping in a new one.

Comparing to the Intous line . . . The stylus’ feel is completely different and I have frequently pressed the buttons when not wanting to changing brushes.   The Length is about two inches shorter then the Intous  stylus, but a lot heavier feel which I like.  It is not as thick either, which I feel gives it a bit less control.  There are 2048 pressure levels with +/- 45 Degree tilt recognition, almost the  same as the Intous  which has 2048 pressure levels with +/- 60 Degree tilt recognition. 

Here is my brush pressure-sensitivity testing. Very Cool!!!


Is it worth saving a few bucks for the Pogo Connect with all the extra tip options?  They look really cool and I want to try them.  I almost considered getting a second stylus, just to try it . . . But I have heard that it does not work with the iPad Air.  

Conclusion:  I am sold and will recommend the Wacom Creative Stylus to my students.  If anything changes I will let you know.  Also, if the Pogo Connect I am buying one and will report back.


Paralyzed Graffiti Artist Draws With His Eyes

A group of artists and hackers have crafted a gadget that lets a paralyzed graffiti artist continue making art using only his eyes. And it costs about as much as an iPod shuffle.
Zach Lieberman of the Graffiti Research Lab started working on the EyeWriter with one man in mind: Los Angeles-based graffiti artist Tony Quan. In 2003, Quan was diagnosed with Lou Gehrig's disease, leaving virtually every muscle in his body paralyzed except for his eyes. Lieberman and developers from Free Art and Technology, OpenFrameworks and the Ebeling Group were inspired to create low-cost, open-source hardware and software for eye-tracking to help Quan draw again.  << More >>
*You can also listen to the NPR story.
Also check out the Kickstarter video.

Tomasz Strzałkowski – CG Artist


Tomasz Strzałkowski – CG Artist
Website: tomstrzal.com/
Galleries: http://tomstrzal.deviantart.com/  http://tomstrzal.cgsociety.org/

Interview with me on Evermotion

news114th february 2013

Interview with me on Evermotion :-)))



3DArtist Magazine Issue 51

news11st February 2013

This is great! I'm absolutely proud and happy because my work is in latest issue 3DArtist Magazine! Here is cover and page with my work.


3DWorld magazine March 2013

news130th January 2013

Cover 3DWorld magazine March 2013 and page from this issue with my work




<<    More Strzałkowski Interviews    >>

The Coolest STEM Artist! Golan Levin

About a year ago, I went to the Denver Art Museum’s Blink show an saw one of the coolest interactive artworks I have ever seen.  It was a projection that looked at you shadow and analyzed it for closed loops.  For example, if you made the OK symbol with your fingers, it would turn the shape between your fingers into a surface and fall to the ground making a crashing sound.  The larger the surface the deeper the sound.  It was awesome!!!
Some of the work was done by Golan Levin.  Check out his TED talk. ~Cornell

You can also check out his website! http://www.flong.com/

3D Glass Printer??? - SolarSinter Project

Now it seems a bit crude, but think of the 3D potential – printing in glass.  Specially from the perspective of a digital sculptor.   I think is is way too cool!  We are just entering the teen year of 3D technologies, printers that print in food, plastic, wax, metal, tissue (medical uses) , and now glass.  The 3D industry is not going away; it has only just begun.  ~Cornell





In this experiment sunlight and sand are used as raw energy and material to produce glass objects using a 3D printing process, that combines natural energy and material with high-tech production technology.


Markus Kayser - Solar Sinter Project from Markus Kayser on Vimeo.