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trabajamos para ella !
Wednesday, March 11, 2009, 06:18 AM - Maya Embedded Language, Maya.general.modelling
Posted by Administrator

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Monday, December 8, 2008, 02:13 AM - Maya.c++.api., Analytical
Posted by Administrator

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Saturday, December 6, 2008, 07:38 PM - Maya.c++.api., Analytical, algorithms
Posted by Administrator

details soon.
9 comments ( 502 views )   |  0 trackbacks   |  permalink   |   ( 3 / 1010 )

Tuesday, November 18, 2008, 03:59 PM - Maya.general.modelling
Posted by Administrator

Feeling bored enough to render and fotoshop

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blind data 
Friday, October 24, 2008, 07:05 AM - Maya.c++.api., Analytical
Posted by Administrator
Image various data-mapping on torus mesh: R - L : ambient light & self shadowing, normal-field, and shortestEdgePath lengths.

The data is visualised using the blindDataShader plug-in. The source code for the plug-in ships with the Maya installation. Prior attempts used the in- built blind Data Editor and polyColorBlindData methods. The plug-in seems to work faster, and allows greater control over managing color-space.

Mental ray rendering of 'colored' mesh is by converting blind data to ColorPerVertex and using mentalVertexColors shading utility node.

videois in real-time.

12 comments ( 146 views )   |  0 trackbacks   |  permalink   |   ( 3 / 1011 )

Saturday, October 4, 2008, 04:07 PM
Posted by Administrator

As 'creative' code-writing and computational tools become an increasing part of the architectural repertoire....a sound conceptual footing ... computation and design... use proce55ing as an easy-to-use software platform..

The image is an hashed and scurried attempt and a result of being forced to think as to why processing might be a good starting point to learn all things computational..especially for us architect lot with a not-so-computational background.

proce55ing :
_is easy and open source. as such a good resource to look into the innards of many a simple algorithm such a flocking, springs, simple fluids,particle et al.
_has features to control whats displayed on-screen (like openGL).
_shares an OOP(object oriented) paradigm with many modern computing languages (java, c++, c# et al)
_comes with its own development environment and compiler (a la visual studio). so a good introduction to understand scripting, programming, compiling, etc.
_can interface with input devices, and external hardware and as such is increasingly used in installation art and newmedia projects (such as this one by minimaforms)
_is based on and is compatible with java, and hence can leverage extensive java APIS to extend itself.

so in essence, proce55ing can be a gentle,no jargon introduction the features of modern software.
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Extending Maya 
Saturday, October 4, 2008, 12:10 PM - Maya.c++.api., Analytical, Geometry, algorithms
Posted by Administrator
Example Iso-surface from a CFD data. Using VTK within Maya.
Comparing the powerCrust surfaceReconstruction algorithm (cs.utexas) with marching-Cubes based reconstruction.
Data used : pointCloud from radioHead video_ house of cards.
Special thanks to Tim Hutton,of UCL for the VTK port of the algorithm.

Maya has, in the previous years , served an useful role in the production pipeline of many a team at AADRL, as also here in our office. Evidently, it not being a CAD application by purpose, presents its hurdles. It has however, proven sufficiently amenable towards extending/customising its capacities through,

Scripting (MEL and python)
Interfacing with command-line applications (qhull,isosurf, tetgen etc).
Making custom plug-ins (C++ and python) .
Incorporating external and openSource libraries/APIs ( CGAL,VTK, openNURBS )

Images here represent recent efforts to integrate Visualization ToolKit(C++ class library, and interpreted interface layers for Tcl/Tk, Java, and Python).
Thanks to Remik Ziemlinski for example source code related to converting internal VTK data representations to Maya representations.
See here for similar efforts to integrate blender and VTK.
See here for vtk-autocad and vtk-solidworks conversion plug-ins.
See here for vtk-inventor integration.

VTK is an extensive class library with a plethora of core graphic/geometric algorithms including Principal Component Ananlysis, tensor and vector feild visualizations, CFD, FEM visualizations etc.
A rudimentary but working pipeline between Maya and VTK, means I will be like a kid in a candy shop for a while to come!

Other open-source code libraries.(viva la open source!)
openDXfull-featured software package for the visualization of scientific, engineering and analytical data.Formerly of SGI.
openInventor:is an object-oriented 3D toolkit offering a comprehensive solution to interactive graphics programming problems.Formerly of IBM.

Using vtk classes to add iso-surfacing capacity to Maya.

14 comments ( 68 views )   |  0 trackbacks   |  permalink   |   ( 3 / 1039 )

streamLines and vectorFields _p2 
Saturday, September 27, 2008, 12:21 PM - Maya.c++.api., utilities, programming interests
Posted by Administrator

Vector field: (from wikipedia)
is a construction in vector calculus which associates a vector to every point in a (locally) Euclidean space.

Streamlines: (from wikipedia)
are a family of curves that are instantaneously tangent to the (velocity) vector .(of the flow).

Custom Maya tool:
1. describes a set of input curves as a tangent vector field.
2. Computes streamlines.
Abdelkrim Mebarki. 2D Placement of Streamlines. In CGAL Editorial Board, editor, CGAL User and Reference Manual. 3.3 edition, 2007. [WWW] [bibtex-key = cgal:m-ps-07]
3. Uses the API to construct curves from output data of the computation.

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streamLines and vectorFields 
Wednesday, September 24, 2008, 02:47 PM - Research
Posted by Administrator

Inadvertent result from goofing around..freewheeling excursions in the name of research!...reminded me of Japanese wood-block prints / style.
12 comments ( 67 views )   |  0 trackbacks   |  permalink   |   ( 3 / 1114 )

vennDiagrams pacMan and greebling 
Wednesday, September 17, 2008, 04:13 PM - Maya.c++.api., Maya Embedded Language, algorithms
Posted by Administrator
Attempting to combine interests in 3 areas: vennDiagrams,pacMan and 'Greebling'.

Definitions from wikipedia:
Greebling : : algorithmically adding detail.
A greeble or nurnie is a small piece of detailing added to break up the surface of an object to add visual interest to a surface or object, particularly in movie special effects.

is an arcade game developed by Namco and licensed for distribution in the U.S. by Midway, first released in Japan on May 22, 1980.

Venn diagrams:
or set diagrams are diagrams that show all hypothetically possible logical relations between a finite collection of sets (groups of things). Venn diagrams were invented around 1880 by John Venn. They are used in many fields, including set theory, probability, logic, statistics, and computer science.

14 comments ( 67 views )   |  0 trackbacks   |  permalink   |   ( 3 / 1085 )

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