The Caligari Corporation developed the TrueSpace software, which is a
complete 2D/3D graphic software package. It will let you model, texture,
light, animate and render 3D content to create traditional images, movies
and content for online shared spaces, and for Virtual Earth.
Microsoft has aquired Caligari, and now the complete software package is
offered for download free of charge from:
www.caligari.com.
There is an extensive set of video tutorials for free download, to give you
a quick start.
You can find masses of related material at
Moonman's
TrueSpace Resources website.
Watch this set of samples to see what a variety of images can be
created: