- does proper edge detection with the crease angle given in the ac file
- the reader is much more verbose in case of broken files
- no more static variables
- std::stream based
- much faster, up to a factor of 50 for a polygonal test model
- if the file contains polygonal surfaces the loaded geometry is still
polygonal as long as the polygons are convex. Concave polygons are still
tesselated. Rationale: If the user needs triangular models he can throw away
that extra information with the osgUtil::Optimizer himself. But the read step
preserves as much extra information that is contained in the file as
possible. Also the polygonal models look a bit smoother than the triangular
ones.
- a huge cleanup
- the basic parsing logic from the original ac3d developer is untouched
- the writer part is untouched
The tarball contains a replacement for the src/osgPlugins/ac3d directory that
is based on the current CVS (2006-11-13).
I have tested that loader with a osgconv foo.ac /tmp/xx.ive on everyfoo. ac
file I could find (~200 from flightgear and the object database). I also run
my flightgear development with that loader -> here I see the models.
I run valgrind testcases on some selected models."
2. Fixed a problem with the caching of textures when CACHE_IMAGES was enabled. This caused a conflict is the names used to cache the image and texture objects.
3. Fixed a problem where AC3D generates surfaces with duplicate vertex indices.
4. Removed what I believe are redundant calls to the tesselator.
5. Added a couple of asserts which should fire in debug mode if my assumptions about 4. are incorrect.
6. Removed obviously unused code. (Stuff that was commented or ifdeffed out.)"
Note, from Robert Osfield, changed the asserts to if () report error using notify so we can catch errors in both optimized and debug builds, but without crashing.
ac3d loader - better sharing of states between objects and Roger James' bug fix for missing normals.
Tesselator.cpp - faster processing of polygon tesselation for single triangles (which dont need to be tesselated)
osgtesselate.cpp - added wrap for texture so that appearance is as originally. Default texture behaviour has changed to clamp."
any reference to these in the distribution across to using unsigned char,
unsigned short etc. This has been done to keep the OSG code more opaque
to what types are.
