Actually, both OpenGL and DirectX specify a matrix layout where the base vectors and the translational
part is consecutive in memory.
OpenGL uses post-multiplication of column-vectors and stores the matrix in column-major storage format:
| X1 Y1 Z1 T1 | | a |
| X2 Y2 Z2 T2 | | b |
| X3 Y3 Z3 T3 | | c |
| 0 0 0 1 | | 1 |
DirectX on the other hand uses row-major storage format but also pre-multiplication of
row-vectors
| a b c 1 | | X1 X2 X3 0 |
| Y1 Y2 Y3 0 |
| Z1 Z2 Z3 0 |
| T1 T2 T3 1 |
So a matrix is stored the same way in both frameworks and both times the translational part is consecutive,
which is not the format that Assimp uses.
The columns of the matrix are the images of the standard base vectors rather than the base vectors themselves. Added some
description of the row-major storage format.
Some are doxy comments, some are just trivial source comment typos.
Found using `codespell -q 3 --skip="./contrib" -I ../assimp-whitelist.txt`
whereby whitelist contained:
```
childs
iff
lod
nto
ot
whitespaces
```
- pull in IOhannes' patch to set the gcc default visibility for all symbols to NO and to mark ASSIMP_API with __attribute__ ((visibility("default"))).
- drop unneeded ASSIMP_API from most internal classes in /code, we just need to keep some exports on Windows to keep AssimpView alive.
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1066 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
Start new documentation page for Performance/Profiling questions.
Migrate existing notes on multithreading to a new doc page, add more details.
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@772 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
- FIX build error on vc8/release-noboost x64, ConvertUTF.c had wrong PCH settings.
- ADD knowext and listext verbs to assimp_cmd, add some raw docs.
- Update unit tests to reflect these changes. Currently I keep getting failures in some tests, this needs to be resolved *urgently*.
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@567 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
FIX: aiProcess_TransformUVCoords tried to transform untransformed channels, and 'he' changed their order from time to time.
FIX: Viewer displays lightmap with scaling factor correctly now.
Further work on documentation, material doc is WIP for the moment.
Some improvements to fast_atof.
Updating makeifle.mingw to reflect my new boost location (arg, too lazy to make it better ...).
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@413 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
- FEATURE: Concave polygons are now triangulated correctly.
- internal face order is ccw now, flipwinding part of converttolh flag
- added test files for the various formats supporting such polygons
FindDegenerates:
- improved behaviour when processing polygons, more tolerant.
Obj:
- material files are now properly read using the given IOSystem
- redirecting some std::cerr calls to our logger
- spaces and tabs are now allowed at the beginning of a line
Viewer:
- max smoothing angle for normals is set to 90 deg now
vc9-workspace
- added assimp_cmd, renamed some virtual folders to be sexier.
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@374 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
- cleaned up doc, made section on face winding clearer
MD3
- fixed coordinate system
- changed default face order for .shader files
MD2
- fixed coordinate system
- fixed face order
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@367 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
- changing Assimp's coordinate system from RH z-up to RH y-up
- fixing coordinate system for LWO, 3DS, ASE, MD5, MDL, B3D, IRR, IRRMESH
- converttolh moved to three separate steps -> flipuv, flipwinding, makelh
LWO
- fixing texture coordinate generation -> mapping axis is correct now
- fixing z-fighting bug
ASE
- fixing crash due to invalid normal setup
- fixing parenting bug
- code cleanup
IRR
- code cleanup
- fixing placement of externally loaded meshes
MDL
- fixing texture coordinate space
PLY
- cleanup
- two-sided maat property is now set
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@366 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
Manuel Freiberger
Unknown
Squareys
mensinda
Eric Engestrom
Joe Hermaszewski
Wil Shipley
U-ORADEV\albihern
Eric Haines
Alexander Gessler
jonathanklein
aramis_acg
ulfjorensen