Todd Vanderlin » experiment

Some Symmetry

Todd Vanderlin — Tue, 27 Jul 2010 03:26:39 +0000

Teeth Shattering

Todd Vanderlin — Tue, 30 Mar 2010 01:39:25 +0000

Bite in front of the camera and your teeth will shatter.

Pixel Painter

Todd Vanderlin — Tue, 30 Mar 2010 01:33:19 +0000

Here is a grabs from an experiment, as you move around particles of paint spray in the direction you move.

Green Balls

Todd Vanderlin — Wed, 24 Mar 2010 01:08:44 +0000

little experiment from last week.

Sketch Range Filter

Todd Vanderlin — Wed, 03 Feb 2010 17:52:45 +0000

Here are some more attempts to create a generative stipple filter. The idea here is to find the outlines of shapes in the image. I think that I can use this data to create bounds for particles and stipple points.

Portrait Pixel Flow

Todd Vanderlin — Tue, 02 Feb 2010 17:49:13 +0000

Been doing some testing to find the flow of pixels in portraits. Above are a few attempts to find vectors in pixels based on surrounding pixels. In video this is achieved by simple comparing current frames to previous frames then calculating the velocity of the different pixels. Here I want to find the general flow of pixels through the image. The goal is to then have particles stream through the image to generate a representation of the image, some type of generative stipple drawing.

See large image here
Original Einstein image here
Original Obama image here

Keytweeter Keys

Todd Vanderlin — Mon, 23 Nov 2009 02:16:30 +0000

My friend Kyle has a built an app the tweets every 140 charters he types twitter.com/keytweeter. I thought this was interesting so I built an app to pull his twitter down and visualize the most popular key. Unfortunately twitter only allows you to go 3200 tweets back via paging. So the picture about is Kyle’s last 3200 tweets. Looks like E is the popular letter. I could have just wikied it but this was much more fun.

I just ran the app on just numbers interesting results. Its very linear with zero being the most popular.

First Grass Renders

Todd Vanderlin — Mon, 28 Sep 2009 20:00:30 +0000

Here are some first grass attempts for a piece I’m working on. There are 4,096 blades of grass with about 15 circular segments per blade. The are built with VBO’s running at about 50fps. I would love to get a few more FPS with some optimization.

watch HD here

Diggin 3D Worms

Todd Vanderlin — Sun, 27 Sep 2009 20:43:09 +0000

Working on some grass for a piece I’m working on. This is my first time generating 3d geometry for a worm/grass. Oh man this is fun.

Normals

Todd Vanderlin — Tue, 22 Sep 2009 23:36:45 +0000

Finally got normals working for the height map. Brad helped me a ton with the math, thanks brad :). After making sure I had the right points its was pretty simple.

Here is an example to calculate normals for a grid in OpenFrameworks. Obviously this can be applied to any other language.

The image above we have four points on a plane. We need three of those points:

ofxVec3f p1(x1, y1, z1);

ofxVec3f p2(x2, y2, z2);

ofxVec3f p3(x3, y3, z3);

We now need a vector from p1 to p2 and p1 to p3.

ofxVec3f v1 = p1 - p2;

ofxVec3f v2 = p1 - p3;

We need the cross product of v1 and v2. This will give us our normal vector. Next we normalize that vector scale it and add p1.

ofxVec3f normalVec = v1.cross(v2);

normalVec.normalize();

normalVec *= 50.0;

normalVec += p1;

Now render from p1 to normal vector.

ofSetColor(255, 0, 0);

glVertex3f(normalVec.x, normalVec.y, normalVec.z);

glVertex3f(p1.x, p1.y, p1.z);

Scrolling Terrain

Todd Vanderlin — Tue, 15 Sep 2009 04:23:55 +0000

The terrain is now scrolling. I’m not using a VBO so its a bit slow but that’s an easy fix. I now want to try and apply a sphere to the grid.

Terrain Height Maps

Todd Vanderlin — Sat, 12 Sep 2009 22:43:33 +0000

These are some terrain height maps built from NOAA’s Planetary Maps. The images are super high res about 2000×1500 pixels, the geometry is calculated and a display list is used for rendering. I think next im going to try and create a VBO out of the geometry so that I can alter the map in realtime.

Interface Builder & OF

Todd Vanderlin — Mon, 03 Aug 2009 19:21:22 +0000

Just hooked up a gui using Interface Builder inside OF. The main window is still a glut window with an Objective C++ connection. This is my first attempt with Objective C, its a totally new way of programming. Pretty fun to see all the tools you can interface with.

Download the source

Color Worms

Todd Vanderlin — Thu, 30 Jul 2009 21:11:14 +0000

Still playing around with the ExtendScript and now some more vector output for OF. I just got LibBoard to compile in OF so that I can do transparency and graphic grouping. These are some worms that I made, they are simple inverse kinematic chains with sinusoidal feedback. Ill post some video soon.

Mirror

Todd Vanderlin — Mon, 27 Jul 2009 16:02:27 +0000

Just made this little app for fun. Its a classic fun house mirror where it splits the video up into four squares. I wanted to try and make a way to post the images in realtime to a database from the app. I had a ton of trouble with embedding a java applet that uses video, applet signing argg. The applet also makes a ajax call to load the new photo you just made. The page is a bit buggy, but try it out. For the best results just download the app and make some fun psychedelic art hehe.

Check it out here
Download App: Mac OSX Linux Windows

Colors & Physics

Todd Vanderlin — Thu, 23 Jul 2009 15:05:54 +0000

I built a simple little app for Ryan to build piles of particles with applied physics. After creating desired grouping he could then export a vector file for composting in a illustration. I started to play around with the app and bringing it into to Illustrator, this lead me to ExtendScript. This reminded me of scriptographer awhile back but way more stable. Basically with ExtendScript you have complete control of the abode Suite. I did some simple little test with the swatch pallet. I went through every item in the document an colored it based on the size using the swatches in my pallet. This was a ton of fun especially when using Kuler. My friend Drew is doing a ton of amazing work with ExtendScript and OF. He has some great tutorials on his site. Here are some of my outputs.

AR Scratching

Todd Vanderlin — Fri, 24 Apr 2009 17:22:39 +0000

I was playing around with some AR markers the other day and came up with this idea. taking just a plain old vinyl record and attaching an AR marker to the label you can track the record in 3D space. The next question was, can you scratch the record? So by figuring out the velocity of the records rotation and applying it to the payback of the audio you can scratch. There is some digital noise that needs to bee worked out, but sounds pretty good. Its still really hard to scratch, it takes some practice but is super fun. The next step is to figure out some nice triggers for different modes. I like the idea of not needing a turntable but the actual spinning of the record helps with the scratching and playback. I made a couple modes, one where the record is paused and you can just scratch through the song. The other looks for zero velocity for x time and then continues on with the song. If there is velocity you then are scratching and the audio is affected. I think that this project has some legs can't wait to play more. more photos

Delaunay Contour

Todd Vanderlin — Sat, 18 Apr 2009 14:53:52 +0000

I wanted to create a shape within the contour so I used delaunay triangulation. This returned all the triangles that build up the convex hull of the points. This was great but I only wanted the triangles inside the contour. Theo gave me a really great inside polygon test which solved this. I made sure that the center of each triangle was inside the contour. I think this will work if I create static shapes that build up the contour. Zach also had a great idea to check to see if the shape is inside the polygon. I could built a contact listener that checks to see if its inside and if so remove.

Contour

Todd Vanderlin — Sat, 18 Apr 2009 04:29:25 +0000

I used box2d to create a shape out of the contour of the body. There are still some some bugs that I’m trying to work out. Initially the shapes were only colliding with the interior of the contour but simple reversing the points solved that. Some shapes are still being push through but I think I have some ideas to solve this, maybe create fixed shapes inside the contour. Despite the somewhat slow playback of the video due to snapzpro the speed is great. More to come.

Mounds

Todd Vanderlin — Wed, 15 Apr 2009 00:46:40 +0000

These are mounds. They wiggle and wobble and don’t like to have things on top of them.

iPhone Soft bodies

Todd Vanderlin — Mon, 30 Mar 2009 01:01:33 +0000

Now we have soft bodies on the iPhone.

Soft Bodies

Todd Vanderlin — Sun, 29 Mar 2009 18:22:37 +0000

Working on some soft bodies using box2d. They are working well, but sometimes will break when joints cross over. I might be able to add some more cross joints to help keep the shape. They are super fun check out the video.

iPhoto Averaged

Todd Vanderlin — Mon, 09 Feb 2009 17:35:16 +0000

I’m working on a project were I load every image from my computer and average the pixels. I want to find the universal pixel and image of the computer. In my head I thought this would would be a very interesting set of colors. For instance if you were a photographer you would have a very beautiful array of color. But is you were an accountant your color array would be bland. In my first test I average all the pixels in iPhoto and blaaa, its brown, what a bummer, nothing pretty. I have some other ideas, hope I can find something interesting.

Turtle Cam

Todd Vanderlin — Tue, 09 Dec 2008 19:43:06 +0000

In the Lab we have some awesome turtles, Rock and Roll. Ryan built a new tank for them so they can swim and be free. We need to share this with the world, so we build a web cam.

Being the Lab that we are this can’t be any old web cam. So Ryan and I grabbed some motors and parts around the lab to built a completely controllable camera. Via the Arduino you can pan and tilt the camera. I used Quicktime Broadcaster which was super easy and free. I had it up and running in about 5 minutes. The only hard part was getting the signal to reach the outside world from inside a corporate network. The next step is to have an interface for the motors and camera for people to control via a web browser. I will post more when we have it online. Get ready for Rock and Roll.

Motion Tracking

Todd Vanderlin — Fri, 26 Sep 2008 19:31:19 +0000

Working on a project were I need to track people and their movements. The setting is outside in a very uncontrolled environment (the city). I posted a question on OF to see what people think, I got a ton of great feedback. Here is a video of some initial testing.

We ordered a bumble bee, which I think is the best solution but much harder to work with. I have some more research to do though.

ps: the gui is a new addon im working on download soon, or find it on the OF forum.

The OF Lab

Todd Vanderlin — Mon, 22 Sep 2008 00:56:35 +0000

Well this is a late post about Ars, but its been busy since I got back. The trip was amazing, I had the best time working with everyone in the lab. Here are videos from the lab projects and more awesome photos from Ryan. I have a feeling that there will be a OF Lab part 2, so get ready.

Get ready for Ars Electronica

Todd Vanderlin — Sat, 30 Aug 2008 17:11:21 +0000

Getting ready to head out for Ars Electronica in Austria. OpenFrameworks is building a lab for the entire event and I’m going to be a part of it. Ryan and I are heading out this weekend, get ready for the madness. Check out some of the videos so far. See you soon in Austria.

About OF Lab
Vimeo Feed
Photo Feed

more to come :)

Cognitive Resonance

Todd Vanderlin — Tue, 05 Aug 2008 04:06:54 +0000

My good friend Josh Goldberg organized a great event this weekend. The name of the night was Cognitive Resonance, the venue was Monkey Town in Brooklyn. I performed with Dave Della Costa, he built his sound live using SuperCollider and I built and application coded with openFrameworks.

The app load a series of type images that I created. They are analyzed in realtime in order to fide the whole words and then each individual letter. I created many particle system that react to the each letter. I hope to work on the piece some more and do more of these events. Thanks Josh for getting this together, next stop Boston.

Q6M

0J4I

907

HG8

see all photos here

Kids & Interaction

Todd Vanderlin — Sat, 26 Apr 2008 16:55:24 +0000

We had some kids come in today, they got to see what we do and try out some of the toys. You can learn a ton watching kids interact with this table. It was amazing watching them learn how to use the table with no explanation. They would teach each other as they figured out new features. I have a ton of new ideas to take from this.

Some particle experiments

Todd Vanderlin — Wed, 23 Apr 2008 18:11:42 +0000

check out the HD ones here & here.
online pharmacycialislevitrasomaviagra

OF RFID

Todd Vanderlin — Tue, 15 Apr 2008 03:26:32 +0000

I hooked up a RFID reader to OpenFrameworks today. It works amazingly, can’t wait to get something together. We have some ideas!

Reel

Todd Vanderlin — Tue, 08 Apr 2008 22:54:25 +0000

Posted a reel of some current work check it out.

Flow

Todd Vanderlin — Wed, 02 Apr 2008 21:12:21 +0000

This is a rough example of flocking and obstacle avoidance. The creatures will ovoid the contours of any shape that is on the table. They also follow the rules of flocking separation, alignment, cohesion. Read more about Boids here.

MultiTouch Calibration

Todd Vanderlin — Wed, 19 Mar 2008 21:25:23 +0000

I want to get some feedback on how to do a proper and simple calabration for a multitouch system. I am going to try and walk you through the process and construction of the table. Here is the main setup for the table. For the most part the table is working check out latest video. The blobs are showing up and somewhat consistent. Better adjustment of IR would fix this.

This is what the projection looks like. The throw of the projection is much larger than the table top. This is where the problem I think starts. I need to align the physical touch points to the projected touch points.

To get the correct image to track I perform a warping technique. I drag the four points of a quad to the four corners of the table. This creates a 640 x 480 warped image where pixel 0,0 is the top left hand corner. I think that this works well and does the job for the most part. It is on the other hand the most processor intensive part of the application. The distortion of the image is not terrible. I have tried Stefanix’s checkerboard calibration but do not completely understand how it applies other than compensate for wide angle distortion in the camera.

More info in photo notes

So now that we have a corrected image to track I need to match the projection to the tabletop. We do a very simalar calibration, this does not feel correct but works. You drag the four points of a quad warping the openGL world to the table. This for the most part works but the distortion of the GL world is weird. There must be a better way to do this.

I have been looking into all the techniques done by other systems like TouchLib and Reactivision. Most are a four point or many point touch calibration system. I have not completely figured this out, this is where I ask for help. What is the best way to do this calibration and setup?

Multi-Touch Photos

Todd Vanderlin — Tue, 11 Mar 2008 16:32:32 +0000

Here is a new video of the Touch Table. We are working on a classic multi-touch photo appm, there are bugs but we are working them out. We have a set of photos growing here.

Thanks to Ryan Habbyshaw and The OF Team.

Smart Surface Beta

Todd Vanderlin — Tue, 04 Mar 2008 03:23:17 +0000

We got a solid test up and running today. There are defiantly bugs in alignment and calibration but its working. I’m going to get some code up soon for sharing, pumped its working. Check out the video.

Sick Eye Tracking

Todd Vanderlin — Thu, 21 Feb 2008 22:48:16 +0000

Using OpenCV and OpenFrameworks we now have sick eye tracking.

Multitouch

Todd Vanderlin — Thu, 14 Feb 2008 22:15:05 +0000

Video of the multitouch prototype. You can touch and push particles around.

New Drawing Machine

Todd Vanderlin — Thu, 17 Jan 2008 01:12:17 +0000

Built a new Drawing Machine at work. This one is long, about 13 feet long. Made some adjustments to the source code. The motors are a some-what smarter. I’m still using brush motors and not stepper motors. If I get some time I’m going to work on portraits.

Baby Ruth

Todd Vanderlin — Thu, 17 Jan 2008 00:40:10 +0000

Working on face detection using openCV. We all want to be Sloth. “Hey you guys”.

Processing Bug

Todd Vanderlin — Fri, 26 Oct 2007 22:37:01 +0000

Alpha bug in processing not sure how to fix it. As the images rotate in 3D space the bounding border is shown.

update: Fixed, well turned on depthTesting. This works but you loose track of depths.

RGB

Todd Vanderlin — Fri, 23 Mar 2007 00:25:24 +0000

some renderings from the project idea039 (time-lapse art). New features and content. More to come.

Idea039 Post

Todd Vanderlin — Sun, 12 Nov 2006 20:19:57 +0000

Love this post, funny as hell. View large.
View Project

Run

Todd Vanderlin — Wed, 06 Sep 2006 03:31:42 +0000

Runtime 3min

City Paths

Todd Vanderlin — Mon, 15 May 2006 02:44:19 +0000

Just launched a project I did this semester, City Paths. In a way it is a redesign for the project I did last semester Presence. The application works with live or recorded video data. This makes the concept come across much better, and there is much more feedback. Take a look.

99&9

Todd Vanderlin — Sat, 13 May 2006 22:23:11 +0000

99&9 is a documentation project for the 99 yeas of Communications Design and the 9 yeas of Design and Technology at Parsons. I set up several cameras around the area all running my Degree Time Lapse program. This project was a blast, the piece came out beautiful. Go and have a look (2 West 13st), while its still up.

BitmapData Tutorial

Todd Vanderlin — Tue, 02 May 2006 16:51:41 +0000

I put together a tutorial for class and figured I would share it with everyone. This is a very simple lesson on how to accesses the bitmapData Class in Flash 8. The end result is a pixel stretch with a live video feed.

Link

180° Time Lapse

Todd Vanderlin — Fri, 28 Apr 2006 08:05:02 +0000

This is the first attempt on a project I’m working on Degree Time Lapse. The footage was done with an iSight, so the video quality is not the best. I will have a project page up shortly. The video is about 5 hours in one minute.

This is a rig for a camera to capture 180° over a period of time.

IDEA:039 (Interactive Paper)

Todd Vanderlin — Mon, 27 Mar 2006 00:48:04 +0000

This a project that I have been working on for awhile now. Finally over vacation I made some good headway. Here it is, go make some “Paper” and see how creative you are.

Update:
Project makes it to PixelMakers

Concept:
IDEA:039 (Interactive Paper) is a collaborative art project. Through interaction with a camera the artist composes a designs in time lapse. The results are then uploaded to Flickr, creating a growing “piece of paper”.

Keep in mind this is new technology. Updates will arrive as the software develops. Uploading take some time, be patient. Hopefully Flash 8.5 and AS3 will fix this problem.

Links:
Project Page
IDEA:039 @ Flickr

Mobile Game Mosh

Todd Vanderlin — Tue, 14 Mar 2006 04:45:39 +0000

The Mobile Game Mosh was at Parsons this weekend. The competition was to make a multi-player or single player game for a mobile phone in 24 hours. We chose to make the multi-player game of course. After not sleeping a wink and running into crazy coding bugs, we came out with a awesome game. We won honorable mention for best concept and for best sound.

8am Still Coding…

Here is are game concept:
Gym Jungle is a multi-player mobile game played in conjunction with a large-scale, public digital gamespace. Players navigate to the top of a school gym ropes course on the larger screen by catching directional cues from dodge balls launched across each player’s handset.

Instructions given to player:
Catch the balls to plan your path. Three catches updates your location. Find the trophies for bonus points and reach the goal within your allotted (for example, 15) moves.

Additional gameplay information:
Before sending a command to the larger gameboard, the handset stores up a queue of three moves to perform in sequence. Players must catch the moves on their handset via the mini dodge ball game that then govern advantageous positioning/advancement on the large gameboard. Players must reach the top of the gameboard in a certain number of moves to receive points for that trial and are encouraged to pick up trophies along the way. Upon successful completion of a trial, the player is placed at the bottom of the map again, but the interaction on the handset increases in difficulty, i.e. the dodge balls fly faster and the number of allotted moves is decreased. Players compete against one another for points based on number of trials completed and trophies collected. The map remains static, so players may leave or enter the game at any time, competing most closely with those who joined the game within the same timeframe.

Game on mobile phone

Game on large screen

Hack Baby 2

Todd Vanderlin — Thu, 09 Mar 2006 16:01:01 +0000

The baby came back for round two. With strobing red eyes and audio outs in the rear; this baby is hacked.

Take a look at the making of Hack Baby. More photos can be seen on Flickr. There are description and notes to hep describe the process. I also did a recording of Hack Baby using the audio out in the rear into GarageBand.

Parts List:
2 Jumbo red LEDS
2 100k Potentiometers
Fancy Knobs or Dials
3 Small push buttons
Various Resistors (used to create pitch bend)
Various Capacitors (used to create pitch bend)
Wire
Solder

Links:
Flick Page
Hack Baby Video * exporting now
Hack Baby Audio

Flickr Photos

Me the Balloon

Todd Vanderlin — Fri, 24 Feb 2006 14:37:08 +0000

The idea was to make a :30 film about yourself. I guess I choose to use a red balloon. The balloon is a metaphor for my travels and routine through the city. I am following the system but observing my surrounds like a balloon. The statement at the end is to make you think just a little more and question your everyday routine.

Flickr Set
Inspired by “The Red Balloon

Baby goes BoingBoing

Todd Vanderlin — Tue, 14 Feb 2006 19:26:26 +0000

My simple little project for class gets linked to boingboing.net. This is crazy. Baby Hack

Update:
I thought that it was cool to get linked up on BoingBoing until my server went down, 28 GB later. All for a little stupid robotic baby. ha!

Other Mentions:
MAKE: Blog
Digg

Baby Hack

Todd Vanderlin — Mon, 13 Feb 2006 02:26:43 +0000

Update: The baby makes it to boingboing.net. This is crazy. Baby Hack

I bought a $10 electronic baby in china town. I cracked it open and soldered a couple of switches to the the speaker. Now the baby is possessed and I have hacked a baby.

Photo Set
Hack a baby (via my Parsons Blog)

Yamboy*

Todd Vanderlin — Wed, 18 Jan 2006 22:53:47 +0000

Check out the new addition to Hellercd.com, Yamboy. Find it under Diversion, enjoy.

Presence

Todd Vanderlin — Fri, 23 Dec 2005 06:15:25 +0000

The semester is over and I have to say it was all that I thought it would be. Can’t wait to get home for some cooking and fun. I’m posting my projects from the semester, I’ll get all of them up when I get a second. For the time being take a look at Presence. Have a great holiday.

Screen Shots from the project

Lines
These are screen shots from “lines” an application that I built. There are two version one that builds based off of the computer. The other that is built based on your movement. I will Post downloads once I clean up the patches.

Project

Todd Vanderlin — Thu, 08 Dec 2005 02:46:42 +0000

coming soon.

Anatomy

Todd Vanderlin — Thu, 02 Jun 2005 15:07:43 +0000

The anatomy of a complete carve. Ryan took fast shoots of me carving down the hill. I layered them on top of each other to show every step of the carve.

No video was used, all effects are done with photography.

Ryan Habbyshaw.com

Todd Vanderlin — Wed, 11 May 2005 21:19:28 +0000

I launched a new site for my friend Ryan. The site is based off my cordless engine. It was quick, but there will be a major update in the future. He has some great work, take a look.

www.ryanhabbyshaw.com

Graphic Design USA Magazine

Todd Vanderlin — Thu, 05 May 2005 17:23:03 +0000

Creative Edge Parties is in latest issue of Graphic Design Magazine.

“We wanted our chickens to symbolize what we see as the beauty our client creates. Only fancy chickens would do.” – Cheryl Heller

“The site takes a humorous look at the fundamental role of eggs in food…”

Read the review
www.creativeedgeparties.com

48 Hour Film Festival

Todd Vanderlin — Wed, 13 Apr 2005 23:11:04 +0000

The Shirtless Dingos Crew.

The Showing was awesome, there were some great films. Can’t wait till next year. Ill post the final version with all the bells and whistles soon.

48 Hour Film Festival Showing

Todd Vanderlin — Tue, 12 Apr 2005 03:53:14 +0000

A fantastic weekend to say the least. I had a chance to be a part of the 48 Hour Film Festival. I will post the film and more info soon. Please come and watch our film at Kendall Theater tomorrow at 7:00pm and 9:00pm.

Self Portrait

Todd Vanderlin — Wed, 30 Mar 2005 01:39:54 +0000

The assignment was to make a self portrait, I had the computer draw for me. I used a database of my nose, eyes, forehead, and mouth. The photographs are loaded randomly creating a dynamic personality. see it

more info please comment.

Multiplicity*

Todd Vanderlin — Tue, 29 Mar 2005 21:16:25 +0000

This is a project that I did for my Parsons application. The assignment was to use paper, photography or digital media to create a color collage representing an interior space where you spend most of your time. I chose my room; everything that is in color represents a part of me. I see “chickens” outside not the ordinary; I use my imagination. The concept is to show my process at one moment in time.

I took 12 photographs placing myself in the shoot at least twice. I did not use the Photo-merge in Photoshop; it does not work very well. I placed all the photos together and painted them onto each other. I lined up angles and objects as best as possible. The result is a very long photograph that starts and ends the same. Feel free to email me if you want to know more, or just post comments. see it

todd [at] toddvanderlin.com

Friends in the Garage

Todd Vanderlin — Tue, 29 Mar 2005 12:54:27 +0000

Good Morning. Well still nasty out, here are some photos of my friend Gerald and I and some of out close friends.