João Machete

Research and Development

EnaOCR – Open Source

by admin on Mar.25, 2010, under Research and Development

This is my first contribution to the world of open source. I started developing this project in the university, and I will continue to work on it until it is stable enough to run on any operating system. For now only runs in Windows and Linux. OSX is the next step, I hope this can be available soon.
splashWhat is EnaOCR?

EnaOCR is a Optical Character Recognition desktop application, that allows you to read multiple images files and convert them to ASCII text or XML.

With this application is easy to deploy any data to any external database in a short period of time. You just need one click to process hundreds of images in seconds, is very fast and with strong accuracy in the detection of words

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Procedural Rain System

by admin on Mar.09, 2010, under Research and Development

The nucleus solver is tool that can handle pouring liquids results. To these example I tried to recreate a rain system, with some tweaks and tests I found easy way to attract the particles to some object.

A plane has been setup to emit particles, with a simple “Particle Collision Event Editor” the particles will die when they collide with the sphere “lifespanPP =0″, that event will emitte 1 particle system without any spread and speed setup to 0.3. That second particle will create another event witch will split 60 particles width spread set to 0 and speed set to 1….remember in the collision properties setup the stickiness to zero..

Real water would tend to adhere to the objects a bit and the droplets must follow the first one and roll down. To accomplish this  I used the “Force Field” attribute on the sphere to create an attractive force for particles. On the nRigid shape for the sphere I have set the following:

Force Field = Single Sided
Field Magnitude = -4.0
Field Distance = 0.13


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Procedural Underwhater Animation

by admin on Mar.09, 2010, under Research and Development

In this scene I tried to recreate a underwater ambient 100% procedural, all done in maya. I used nParticles with the new solver Nucleus for the school of fish and for the plants. Each fish contain forces and field to push and pull other fishs and plants close to them.


To create the rocks I had bump and displacement a simple poly square with a noise shader.

The ocean is a nurbs plane converted in softbody with some turbulence on it.

Here is the preview, I will try to render all the scene soon.  :)


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First Time with GWT

by admin on Feb.03, 2009, under Research and Development

This tutorial introduces you to GWT. You can do develop GWT apps without any IDE, but it is really helpful if you use one. I choose Eclipse with Cypal Studio for GWT (which was earlier known as Googlipse) to walk thru this tutorial.

Requirements:

  • You need the latest GWT. You can download it at here. Make sure you download the latest version.
  • Download and install Eclipse 3.4 with WTP 2.0. You can get it here.
  • You need a Java 1.5 VM to run Eclipse. You can get it here.
  • Download Cypal Studio for GWT from here and extract it to your eclipse directory.

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