Open Inventor on-line documentations
Open
Inventor A brief introduction to Open Inventor
VRML
support -- VRML 1 and 2 support in Inventor
Porting
guide -- Porting an Open Inventor 2.0 application to 2.1 and 2.4
Performance
tips -- Hints for optimizing an Open Inventor application
Space
Ball -- How to use a 3D space ball or space mouse with Open Inventor
Large
Model Viewing overview -- New extensions to optimize rendering performance
for large data sets