Re: [Visualpython-users] Visual Python in a 3D Immersive Environment

[Bruce S. <bas...@un...>]

I would be interested in adding your enhancements to Visual, if you are 
willing. I haven't heard previously of the problems you report. As to 
the winding rules, where does this come up, other than in the faces 
primitive? What is the "Stereo Visual Python Program"?

Just yesterday I had an email exchange with people involved with the 
Geowall consortium (http://www.geowall.org) who use stereo projection in 
the service of geographic visualization. Their hardware configuration is 
two projectors with polarizers mounted very close together, projecting 
onto a screen that preserves polarization. They use passive polarizing 
glasses. They may try out VPython in their context.

Bruce Sherwood

Shaun Press wrote:
> I have modified Visual Python to run on The Wedge system at the
> Department of Computer Science, Australian National University. The
> Wedge is a 3D Immersive Environment, which presents scenes in real 3D.
> The details about The Wedge can be found at http://escience.anu.edu.au
> (usage information) and http://ephebe.anu.edu.au/wedge/index.html
> (technical and hardware information).
> Credit must also go to Hugh Fisher (author of the Stereo Visual Python
> Program) for assisting with the 3D transformation calculations. 
> 
> I have also added a couple of extras to Visual Python
> New shapes: Pyramid and Frustum
> New shape set: Points (which are a set of single points on the screen)
> New shape attribute: Wire (when true the shape is drawn as a wire frame)
> 
> I am giving a seminar next week on the project and I hope to have
> slides/screenshots/source available after that.
> 
> Now, a number of questions ....
> 
> Did anyone have problems building Visual Python under Windows from
> source? (either using the Visual C++ workspace file that came supplied,
> or linking the vector library)
> Did anyone have any problems running any demo's under the windows build
> that use vectors eg stars.py?
> Can anyone confirm that the algorithms used to generate the shapes do
> not follow the "winding" rules for front-facing or back-facing surfaces?
> 
> Shaun Press
> Department of Systems Engineering
> Research School of Information Sciences and Engineering
> Australian National University
> 
> 
> 
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