- 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."
I've attached a small fix for this.
Cause: uncompressed mipmap handling was done only for RGB pixel format.
Fix: added condition for handling alpha and luminance formats too."
contained an 8-bit color map. The crash occured at line 545:
remap_row(currPtr, inbuf, w, red, green, blue);
Cause: The code was trying to write past the end of the buffer while
doing this remapping. The size of the buffer is determined based on the
value of 'format', which was 1 in this case since bitspersample is
8(indicating a 8-bit color map). The buffer should have been created 3
times as large since that 8-bit value is indexing a 24-bit color.
Fix: I've put in an if statement to set format to 3 if 'photometric'
indicates the tif contains a palette as the output data will always be
24-bit color data in this case."
COLLADA plugin. dae->load will not return DAE_OK the second time a model is loaded, so a
second check for DAE_ERR_COLLECTION_ALREADY_EXISTS has been added."
only DAE instance when it's first needed instead of in the constructor.
This fixes the problem with osgdb_dae.dll not being loaded due to
unwanted ordering of global initialization.
This fix and the previous fix of the COLLADA plugin might be unnecessary
with the latest COLLADA DOM, but since many of us will probably still
use the older version of the DOM, I guess it's better this way.
"
plugin. It was only reading floats & doubles correctly on little
endian systems, which require byte swapping, and not on big
endian systems which don't require any swapping."
ignores the Object records if it's safe to do so. The reader option
preserveObject prevents this optimization.
I have also removed the flat shading attribute set by the Object
record. This flag is only intended for the "Calculate Shading"
operation in Creator."
( in OF external references) after the OF file is loaded. The change do
conditional
execution of already existing code.
I use this for optimized preprocessing of large databases what can not
be loaded
in one pass because of memory limits."
parent file is so old that it doesn't support Light Point palettes or Shader
palettes, then the parent file is not allowed to override those palettes in
the child."
osgPlugins\pfb\ConvertFromPerformer.cpp
Added support for
PFSTATE_ALPHAFUNC
PFSTATE_ALPHAREF
Improved handling of
PFTR_NO_OCCLUDE
I have tested this with WIN32 performer 3.1 and 3.2.2
and linux OpenGL Performer 3.1.1"
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