VERA (Very Efficient Raytracing Algorithm)
can produce realistic and non-realistic images. The algorithm gets
its efficiency from a preprocessing step (using a regular grid method)
in connection with a subscene technique. Besides the usual features of
a raytracer it can be used for rendering copper plates and SIRDS.
VERA was developed at Univ-
Karlsruhe, Institut für Betriebs- und Dialogsysteme. The
first implementation was done by Prof.Dr. A.Schmitt in 1984; further
development by Prof.Dr. H.Müller. Integration from different
versions by Markus Linsenmann in 1986 to the Vera-I raytracer. After
1989 two branches were developed with focus on different topics:
Vera-II and Vera-IV.
Vera-II is maintained by Univ. Karlsruhe, Institut für
Betriebs- und Dialogsysteme, Abt.
Graphische DV. Vera-II has a
general texture mapping feature. Several projects at IBD, Univ. Karlsruhe have Vera-II
as their predecessor: e.g. XRay, Portray.
Vera-IV is the other main line. It is maintained by W. Leister and M.
The current version is Vera-IV 2.12. The preprocessing step is
implemented in a separate program, while the raytracer works on
preprocessed pagefiles. In addition to a spacial texture mapping
concept and many features from XRay (by Achim
Stößer ), Vera-IV contains SIRDS- and copper plate
Many details of the Vera project are described in a book, published by Springer Verlag.
Leister, Müller, Stößer: Fotorealistische Computeranimation (in german)
For general information about raytracing take a look at the Raytracing Pages or the