Some general questions

[farshizzo]

1,2) Vizard does not support publishing a script into a web application. You can only publish it into an executable.

3) Vizard has built-in support for the OpenGL shading language, which allows you to write your own shaders and rendering effects. We also have an exporter for 3dsmax which exports models into Vizards native file format. Having a good graphic artist that knows how to use 3dsmax is usually the best way to improve the realism of your virtual world.

4) The size of the actual marker is not very significant, it's how large the marker appears on the camera image. Having a small marker that is very near the camera lens will work better than a large marker that is very far from the camera lens. The ARToolkit plugin only supports marker based tracking. There are other tools out there for performing markerless face tracking, you should look into those if you don't want to use markers.