Mostrando entradas con la etiqueta Educacion. Mostrar todas las entradas
Mostrando entradas con la etiqueta Educacion. Mostrar todas las entradas

jueves, 6 de agosto de 2009

Test sanitario

Test sanitario general

Son conocidos ciertos rituales femeninos a la hora de ir al baño: generalmente cuando están en un lugar público van de a dos y por lo general sus visitas a los toilettes no duran menos de diez minutos. Pero los hombres también tenemos nuestras reglas de convivencia y de accionar dentro del recinto sanitario. Te propongo aquí un divertido test virtual para que pongas a prueba tus conocimientos acerca del comportamiento que un verdadero hombre debería tener en estas circunstancias.

Tal vez absurdo y carente de lógica, pero gracioso por lo estereotipado que podemos llegar a resultar los hombres en ciertos comportamientos, el test de cibermitanios nos pone a prueba en situaciones que constantemente afrontamos los hombres cuando recurrimos al baño de un lugar público como un shopping, un restaurant o un estadio.

Hazlo y verás como muchas veces esos actos silenciosos y poco compartidos con nuestros pares son obvios para cualquiera. Para hacer el test, haz click aqui.

Imagen: clker.com

domingo, 26 de julio de 2009

European Parliament

The European Parliament is one of the largest buildings of the continent (300m*100m). The building looks from above like the hat of Napoleon who had unified most parts of Europe (by use of war) and introduced the Code Civil in many conquered countries as a modern rule of law. The model contains quite small textures. The high detail on the glas front is done with a combination of pngs (window frames) and a large scaled jpg background (reflection).

bug with texture coordinates in scaled groups

In one of my models, I had to correct the positions of textures inside a group. When I closed the group again, most textures moved for some pixels (also textures that I did not edit). Unfortunately, the undo function does not undo this texture shift. So I had to do all texturing several times again.

After closing a group, all geometry and textures are saved again regardless of whether all geometry or only one element has changed. Due to a bug, Sketchup does not correctly calculate the texture coordinates in scaled/rotated groups or components correctly.

So I recommend doing texturing after scale and rotation has been perfected, and doing grouping at the very end when texturing has been finished.

1000 years Willigis' cathedral in Mainz

Just in time for its 1000th anniversary, Mainz Cathedral is visible as 3d-model in Google Earth. This Cathedral is the Episcopal Church of the diocese of Mainz and dates back to a construction by Bishop Willigis from around 975. Unfortunately, it was destroyed in a fire at its consecration on 29.8.1009. Until 1036, the cathedral was rebuilt by bishop Bardo as romanesque pier basilica. Throughout history, there have been numerous alterations in many architectural styles. The building is 116 m long and 83.5 m high.

Trifels Castle

Richard the Lionheart was here for some kind of 'vacation'.
model in the 3d-warehouse

Texturing complicated organic shapes

I modelled a quite difficult rock formation, which needed to be textured: http://sketchup.google.com/3dwarehouse/details?mid=d7801c562346005eb05fa4413d74cff0 I tried external applications that unfold the model and apply UV coordinates for the texture image. Unwrap3d (commercial, no export in free version) and Blender would have taken me to much time to learn and the first results were a chaos of vertices because the shape is to complex. So I used projected textures in Sketchup:
1.jpg
1. Use View > Parallel Projection. Place rectangles in the air that are roughly parallel to each side of the model. Select each and click right > Align View and save the View as a new Scene.


2.jpg
2. Make Screenshots (Alt+Print) of each Scene, cut them and import them as new textures.


3.jpg
3. Optional: assigning colors to the boundary edges for each texture can be helpful.


4.jpg
4. Place the textures on the rectangles and adjust them untill they overlay perfectly the geometry behind (hidden geometry on is helpful). Then project the textures on the model.


5.jpg
5. Now you can use your graphics editor to lay photos over the outlines of the textures. You only have to consider that the textures are fitting along the red lines. You may have to distort/paint on them until the model is seamless textured. Reload the texture images in Sketchup several times untill you are satisfied.


6.jpg
Taking screenshots with parallel perspective is also practical when you have to merge several photos like for this large facade:

Roman Estate revived

The Romans aquired our region in the first century AD. The area became quite popular for country estates where people grew newly introduced agricultural goods like wine. One of these estates has been rediscovered during land consolidation in 1981 and partly rebuilt. In order to see it more realistic and in full dimensions, I rebuilt it as a 3d-model and completed the rendered image with a photomontage (which was quite difficult as today the site looks totally different). The villa was built in the 2nd century with a 104m long facade, a representative portico (the row of columns), a amply roman bath and a very remarkable wine press. The reconstruction shows the full length after its extension to 150m in the 4th century. Towards the end of the roman empire, the Alamanni and other tribes came marauding and destroyed it. Despite the uncertain times, a larger villa was built within a stone's throw but hidden by a hill.

'roofing ceremony'!

My new project has reached the roof level: I'm rebuilding a medieval monastery church in romanesque style. My current Google Earth model gives only a rough impression of how it looked like. At the moment, the Sketchup file has 925kB with 130400 polygons due to component usage.

workaround for display issue 'burning-through'

Sometimes in Google Earth (as well as in Sketchup), semitransparent parts of png-textures look very strange. Instead of the faces behind the png, you see the Google Earth terrain in the background. The png texture 'burns through' all faces.

This can not be fixed by using pngs with only fully or zero transparent pixels, because in GE, pngs are sampled with something like a bilinear filter which always calculates a semitransparent transition between fully transparent and opaque pixels.

When I modelled the European Parliament, I got such an ugly result that I could never ever upload to the 3d-warehouse. More than half of it was burned through and I could see the Google Earth terrain well:

I found out (by chance!) that I need to put all faces behind the pngs in one group (so that all pngs are outside of this group). PNGs seem only to burn through faces that are on the same level in model hierarchy, they do not burn through groups or components.

workaround for display issue 'burning-through'

Sometimes in Google Earth (as well as in Sketchup), semitransparent parts of png-textures look very strange. Instead of the faces behind the png, you see the Google Earth terrain in the background. The png texture 'burns through' all faces.

This can not be fixed by using pngs with only fully or zero transparent pixels, because in GE, pngs are sampled with something like a bilinear filter which always calculates a semitransparent transition between fully transparent and opaque pixels.

When I modelled the European Parliament, I got such an ugly result that I could never ever upload to the 3d-warehouse. More than half of it was burned through and I could see the Google Earth terrain well:

I found out (by chance!) that I need to put all faces behind the pngs in one group (so that all pngs are outside of this group). PNGs seem only to burn through faces that are on the same level in model hierarchy, they do not burn through groups or components.

Römerplatz in Bad Dürkheim

The Römerplatz is a city square in Bad Dürkheim. This was for centuries the main traffic junction and the city hall was located here. Since 1989, traffic has to find other ways because it's a pedestrian zone now. I needed around 100 photos for modeling and had to split the model into 5 parts: Römerplatz in 3d-warehouse

bridge models

Some of my recent work:


bridge models

Some of my recent work:


Römerplatz in Bad Dürkheim

The Römerplatz is a city square in Bad Dürkheim. This was for centuries the main traffic junction and the city hall was located here. Since 1989, traffic has to find other ways because it's a pedestrian zone now. I needed around 100 photos for modeling and had to split the model into 5 parts: Römerplatz in 3d-warehouse

complete 3d-model of the Moscow Kremlin

I spent the last weeks modeling the governmental center of Russia for Google Earth.
The Kremlin contains the administrative buildings of the Russian government and over 8 cathedrals, 6 palaces and 20 individual towers. It is a fortified complex that dates back to former wooden buildings from the 11th century. Most parts of the modern complex were built in the 15th century by Italian architects (like the red walls and towers). Due to many severe fires, most historic structures have been destroyed and replaced. The Grand Kremlin Palace was built in 1839–49, followed by the new building of the Kremlin Armoury in 1851. The latest wave of alteration took place after the Russian Revolution and during the soviet period, when the State Kremlin Palace and the administrative buildings replaced former sacral buildings.

complete 3d-model of the Moscow Kremlin

I spent the last weeks modeling the governmental center of Russia for Google Earth.
The Kremlin contains the administrative buildings of the Russian government and over 8 cathedrals, 6 palaces and 20 individual towers. It is a fortified complex that dates back to former wooden buildings from the 11th century. Most parts of the modern complex were built in the 15th century by Italian architects (like the red walls and towers). Due to many severe fires, most historic structures have been destroyed and replaced. The Grand Kremlin Palace was built in 1839–49, followed by the new building of the Kremlin Armoury in 1851. The latest wave of alteration took place after the Russian Revolution and during the soviet period, when the State Kremlin Palace and the administrative buildings replaced former sacral buildings.

sábado, 25 de julio de 2009

El Libro Negro el Hacker - ***Aprende Todo Acerca del mundo Hack***


Fascinante obra digital equivalente a más de 1.000 páginas escritas.

Recorrido completo y profundo por el Mundo Hacker: su esencia, sus procedimientos y métodos, herramientas, programas y utilidades, con amplias explicaciones.

Los mejores escritos hacker en idioma Español.

Cómo defender su PC de “Ataques” externos, virus, troyanos, escaneo de puertos, aplicaciones perniciosas.

Cuatro discos llenos de información, utilidades, vínculos a páginas Web.



Contenido:

Disco 1:
  • PRÓLOGO por “El Hacker Negro”
  • Medidas de Seguridad para su sistema de cómputo
  • INTRODUCCIÓN: El Hacker –Manual
  • Todo sobre la IP
  • Crackeando Webs
  • Qué es el “Sniffin”
  • Hackeando vía TELNET
  • Qué es el “Spoofing”
  • Cómo se hacen los VIRUS

Disco 2:

  • Amenazas en la Red
  • INGENIERÍA INVERSA
  • Agujeros de seguridad informática
  • Entrar en Pc’s con recursos compartidos
  • Guía del CRACKER: manejo de ensamblador
  • Apodérate de ICQ
  • Cifrado de información
  • Cómo sacar la IP en IRC
  • Cómo liberarse de un virus TROYANO
  • Manual del IRC
  • Manual del Back Oriffice
  • Navegando anónimamente bajo Proxys
  • Crackeando sistemas
  • Identificación como Root

Disco 3: (Utilidades)

  • Descifrador de passwords PWL
  • Descifrador de asteriscos en passwords
  • Descifrando passwords del CMOS
  • Encripta tus archivos (programa Crypto)
  • Gran número de seriales de programas comerciales
  • Guía ligera del Hacker
  • IP AGENT
  • Lista completa de puertos de un sistema
  • OPTOUT2000: Detector de Intrusos (instálalo en tu sistema para comenzar-es Freeware).
  • Usa la “fuerza bruta” para adivinar claves en archivos ZIP

Disco 4: (Utilidades)

  • BIOS CRACKER: encuentra passwords de BIOS (por ejemplo, en portátiles)
  • Elimina los 30 días de los programas shareware
  • Monitorea tu Acceso Telefónico a Redes
Descargar
Peso:5Mb

El Libro Negro el Hacker - ***Aprende Todo Acerca del mundo Hack***


Fascinante obra digital equivalente a más de 1.000 páginas escritas.

Recorrido completo y profundo por el Mundo Hacker: su esencia, sus procedimientos y métodos, herramientas, programas y utilidades, con amplias explicaciones.

Los mejores escritos hacker en idioma Español.

Cómo defender su PC de “Ataques” externos, virus, troyanos, escaneo de puertos, aplicaciones perniciosas.

Cuatro discos llenos de información, utilidades, vínculos a páginas Web.



Contenido:

Disco 1:
  • PRÓLOGO por “El Hacker Negro”
  • Medidas de Seguridad para su sistema de cómputo
  • INTRODUCCIÓN: El Hacker –Manual
  • Todo sobre la IP
  • Crackeando Webs
  • Qué es el “Sniffin”
  • Hackeando vía TELNET
  • Qué es el “Spoofing”
  • Cómo se hacen los VIRUS

Disco 2:

  • Amenazas en la Red
  • INGENIERÍA INVERSA
  • Agujeros de seguridad informática
  • Entrar en Pc’s con recursos compartidos
  • Guía del CRACKER: manejo de ensamblador
  • Apodérate de ICQ
  • Cifrado de información
  • Cómo sacar la IP en IRC
  • Cómo liberarse de un virus TROYANO
  • Manual del IRC
  • Manual del Back Oriffice
  • Navegando anónimamente bajo Proxys
  • Crackeando sistemas
  • Identificación como Root

Disco 3: (Utilidades)

  • Descifrador de passwords PWL
  • Descifrador de asteriscos en passwords
  • Descifrando passwords del CMOS
  • Encripta tus archivos (programa Crypto)
  • Gran número de seriales de programas comerciales
  • Guía ligera del Hacker
  • IP AGENT
  • Lista completa de puertos de un sistema
  • OPTOUT2000: Detector de Intrusos (instálalo en tu sistema para comenzar-es Freeware).
  • Usa la “fuerza bruta” para adivinar claves en archivos ZIP

Disco 4: (Utilidades)

  • BIOS CRACKER: encuentra passwords de BIOS (por ejemplo, en portátiles)
  • Elimina los 30 días de los programas shareware
  • Monitorea tu Acceso Telefónico a Redes
Descargar
Peso:5Mb

miércoles, 22 de julio de 2009

El Diccionario de la lengua española



es el diccionario normativo más amplio del idioma castellano, editado y elaborado por la Real Academia Española (RAE), cuya primera edición data de 1780.
Es considerado como el principal diccionario y autoridad de consulta del castellano. El diccionario incluye todas las palabras de uso común extendido, al menos en un ámbito representativo de entre aquéllos en los que se habla el castellano, además incluye numerosos arcaísmos y vocablos hoy desusados, para entender la literatura castellana antigua. incluye las acepciones propias de los países hispanohablantes cuyas Academias de la Lengua forman parte de la Asociación de Academias de la Lengua Española. Es abreviado generalmente como DRAE (Diccionario de la Real Academia Española). La RAE lo denomina Diccionario Usual.


-----------------------------------------



Idioma:
Español

TAMAÑO:
6 MB

Descargar


El Diccionario de la lengua española



es el diccionario normativo más amplio del idioma castellano, editado y elaborado por la Real Academia Española (RAE), cuya primera edición data de 1780.
Es considerado como el principal diccionario y autoridad de consulta del castellano. El diccionario incluye todas las palabras de uso común extendido, al menos en un ámbito representativo de entre aquéllos en los que se habla el castellano, además incluye numerosos arcaísmos y vocablos hoy desusados, para entender la literatura castellana antigua. incluye las acepciones propias de los países hispanohablantes cuyas Academias de la Lengua forman parte de la Asociación de Academias de la Lengua Española. Es abreviado generalmente como DRAE (Diccionario de la Real Academia Española). La RAE lo denomina Diccionario Usual.


-----------------------------------------



Idioma:
Español

TAMAÑO:
6 MB

Descargar