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Sep 28
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Animating Urban Pollution in Google Maps

By google maps


Richard Milton, a researcher at CASA working on our GeoVUE project (funded by NCESS), has produced an interesting use of Google Maps to visualise urban pollution trails.

As a result of the write up of his work, in New Scientist, the BBC got in touch to film a sequence based on measuring carbon monoxide levels from a cyclists perspective.

The Google Map features a colour coded time line of pollution, animating along the path linked to a java applet. The peak of carbon monoxide emissions is as the presenter got stuck behind a bus..

You can view the Google Maps example from here

Richard has written up his account of the experiment on the CASA Blog.

Sep 26
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Architectual Visualisation in Game Engines – Oblivion

By 3D Modelling, Game Engines, Oblivion, Virtual London

As we mentioned in our post on Half Life 0 Oblivion 1 the engine behind Oblivion offers a lot of potential for architectural visualisation.

It has taken a couple of days but we finally have first stage work flow for importing models into Oblivion. The movie below shows the first beta output using our model of the Quad at University College London. The start of the movie is slightly dark due to the compression going into YouTube, we cycle through to daylight half way through the movie. A higher resolution version can be downloaded at the end of this post.



The Quad model was built to examine rapid modelling techniques (see our previous entry) for games and Google Earth. By importing it into a games engine it opens up the possibilities to rapidly visualise environments, both urban and rural.

We will put a tutorial online documenting the process as soon as its refined, thanks go to Joel at CASA for his help on the work flow…

Download a compressed version of the movie (16Mb .wmv) or high resolution (96Mb .wmv).

Sep 26
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Half Life 0 Oblivion 1 – Half Life Update

By Game Engines, Oblivion

Importing into the Half Life 2 Engine has proved slow and problematic. The requirement to create ‘qc’ files and compile models before even reaching the engine puts time constraints on the process that make it laborious for architectural models to be visualised.

The engine behind the game Oblivion however is a different matter. It is a joy to work with and with the use of plugins a work flow can be produced to visualise models in under an hour.

We are working on it at the moment with our University of London Quad model, a movie will be posted shortly… (Update – a movie is now online on the Oblivion post)

Sep 25
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Google Earth Rapid Modelling – UCL Quad Beta

By Google Earth

Following on from our post on Photomodelling in Sketchup pictured above is the model in Google Earth (Beta 4). The model is exported ‘as is’ to examine how Google Earth copes with high resolution textures with Open GL enabled (it crashes in DirectX).

If you have a high powered machine you can download the model from here (10.6Mb). Note the model is for test purposes only and does not portray the final product. At the moment we are using it to produce a work flow for rapid modelling and easy interchange of files formats between various graphics engines.

Any comments are as ever welcome…

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