Colour interpretation and shading is poor. Movement is smooth. Microsoft VRML plug-in. Background is light blue by default. Shading is gradual, giving a much better appearance of lighting effects.
Colours are much brighter.
Transparency does not appear to work. Lighting control is not very good. In other words viewing the same scene using different browsers produces very different results. I think of the various combinations I prefer the Internet Explorer. I have almost been tempted to produce two different sets of source code, one each for Microsoft and Netscape.