Piterwilson = Juan Carlos Ospina Gonzalez

The Animation Bible by Maureen Furniss

Piterwilson — Fri, 27 Jun 2008 20:54:02 +0000

I just got a copy of The Animation Bible, a book by Maureen Furniss (Ph.D) of the Animation Faculty at CalArts in Los Angeles.This very lenghty book touches about every topic there is on animation. From conception, pre-production, making a pitch, budgeting, actual development, history, techniques … the list goes on.

He recibido una copia de The Animation Bible, un libro por Maureen Furniss (Ph.D) de la Facultad de Animación en CalArts de Los Angeles. Este bastante extenso libro toca mas o menos todos los temas que hay acerca de la animación. Desde la concepción y conceptualización, presentación inicial, presupuestos, desarollo, historia, tecnicas… la lista de temas continua.

I had the great honor of being referenced under the chapter titled “Digital Media and Computer Animation” as one of the many case studies covered troughout the book, for my participation on the Flipbook! project, developed for Fabrica’s Interactive department.

Tuve el gran honor de aparecer referenciado como uno de los muchos casos de estudios mencionados en el libro por mi participación en Flipbook!, desarrollado para el departamento Interactivo de Fabrica

make posable puppet in as3, the simple way

Piterwilson — Thu, 22 May 2008 20:54:43 +0000

Even thou Inverse Kinematics are neat and spectacular, they are also very complex unless you are good at trigonometry. A simpler way to achieve a “posable” puppet is to make a graphic element that will rotate around a pivot point. Then, attach another graphic element to the first one that has its own pivot point and repeat as many times as necessary.

Take this example:

source for pivottest

Basic as3 IK puppet skeleton (2)

Piterwilson — Thu, 22 May 2008 19:35:55 +0000

Adding some constrains and making some points “fixed” is possible to create something close to a posable puppet. It’s also possible to store pre-set positions for later use.

source for iktestpuppet2

Basic as3 IK puppet skeleton

Piterwilson — Wed, 21 May 2008 22:06:42 +0000

This is a basic “humanoid” puppet using the IKMember from this post.

Even thou it works more or less for what i want, a lot of limitations are evident: setting different distances betweens different neighbor anchor points or making some of them static

source here : IKTestPuppet #1

Inverse Kinetimatics for as3

Piterwilson — Tue, 20 May 2008 19:05:15 +0000

I’ve trying to create an animated puppet with a skeleton that i can “pose” in flash. After some research i found out that to accomplish my goal i had to use something called Inverse Kinematics.

I don’t really understand the math behind it that well, but i used this tutorial made for as2 to create my own IKMember class, pretty much just copying it but translated to as3. This is my first attempt at the simplest of skeleton puppets : a Snake

Here’s the source code (IKSnake.zip)

PWButton as3 class

Piterwilson — Tue, 20 May 2008 01:26:16 +0000

I often use MovieClips as interface buttons. I’ve put together a class to save myself some time on this task.

The PWButton class takes a MovieClip and turns it into a fully functional button with some time-saving features:

you can use the ‘data’ property to store and retrieve information, such as a parameter for later use on a function
enable() and disable() methods, easily turn the PWButton on and off much like the SimpleButton.enabled property.
you can set the roll over, down, and disabled states using frames within the target movieclip.

example swf:

PWButton.zip

PLA 2008

Piterwilson — Sat, 17 May 2008 19:59:17 +0000

I’ve received the PLA award in the category of interactive media for my participation on the Flipbook! Deluxe installation at the Triennale in Milan.
These awards are always a good party. All the people from advertising agencies take the night off and go to this thing. You walk on a red/orange carpet at the entrance and theres a tv show host welcoming people and doing interviews! The awards are presented by local celebrities, for example: Click here to see a pic of me with Miss Colombia!. Afterwards there is free alcohol! yey!

Bitmapdata erasing in as3 (with custom brush shape)

Piterwilson — Thu, 08 May 2008 00:15:08 +0000

For a drawing program made in flash, i came across the need to erase a bitmapData object using a custom brush tip. Finally i came across this example which was exactly what i needed, except it was written for actionscript 2.

I updated the script to actionscript 3, and added some extra comments that made me understand how this worked. I hope it saves you some time if you need to do something similar. (Please forgive the roughness of the code, its just a test for learning porpouses)

type="application/x-shockwave-flash">

Download erasetest.fla (552 kb)

Projecto Diseño #54

Piterwilson — Sat, 26 Apr 2008 20:47:42 +0000

The 54th edition of Proyecto Diseño features all the nominees for the XI edition of the PLA (Iron Pencil) Design award aimed at Colombian professionals. This year they have 95 finalist projects in 21 categories in areas of design like architecture, product design, clothing design, graphics, Internet among others.

2 of my projects compete against each other on the Interactive Design category, which pretty much means i win by default.

La número 54 de la revista Proyecto Diseño presenta todos los nominados a la XI edición de los Premios Lapiz de Acero. Este año cuentan con 95 finalistas en 21 categorias como arquitectura, producto, modas, gráfica e Internet entre otras.

2 de mis proyectos compiten entre si en la categoría de Diseño Interactivo, lo cual quiere decir que gano “por W”.

Providencia

Piterwilson — Sat, 26 Apr 2008 04:01:59 +0000

Just got back from Providencia, a small Colombian island in the Caribbean sea. So tiny and remote that has somehow remained untouched by modern living. A great place for eco turism type activities (snorkeling, diving) and the sea food is to die for.