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Added group support for .obj files.

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git-svn-id: http://svn.code.sf.net/p/irrlicht/code/trunk@1263 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
hybrid 2008-02-26 16:35:52 +00:00
parent 0388712953
commit 69916f9d42
2 changed files with 37 additions and 21 deletions
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48
source/Irrlicht/COBJMeshFileLoader.cpp
View File

@ -46,7 +46,6 @@ bool COBJMeshFileLoader::isALoadableFileExtension(const c8* filename) const
}
//! creates/loads an animated mesh from the file.
//! \return Pointer to the created mesh. Returns 0 if loading failed.
//! If you no longer need the mesh, you should call IAnimatedMesh::drop().
@ -59,13 +58,11 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
const u32 WORD_BUFFER_LENGTH = 512;
SMesh* mesh = new SMesh();
core::array<core::vector3df> vertexBuffer;
core::array<core::vector2df> textureCoordBuffer;
core::array<core::vector3df> normalsBuffer;
core::array<core::vector2df> textureCoordBuffer;
SObjMtl * currMtl = new SObjMtl();
currMtl->Name="";
Materials.push_back(currMtl);
u32 smoothingGroup=0;
core::map<video::S3DVertex, int> vertMap;
@ -74,7 +71,7 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
// Patch to locate the file in the same folder as the .obj.
// If you load the file as "data/some.obj" and mtllib contains
// "mtlname test.mtl" (as usual), the loading will fail. Instead it
// must look for data/test.tml. This patch does exactly that.
// must look for data/test.mtl. This patch does exactly that.
//
// patch by mandrav@codeblocks.org
// ********************************************************************
@ -96,6 +93,7 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
// Process obj information
const c8* bufPtr = buf;
core::stringc grpName;
while(bufPtr != bufEnd)
{
switch(bufPtr[0])
@ -137,8 +135,11 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
}
break;
case 'g': // group names skipped
case 'g': // group name
{
c8 grp[WORD_BUFFER_LENGTH];
bufPtr = goAndCopyNextWord(grp, bufPtr, WORD_BUFFER_LENGTH, bufEnd);
grpName = grp;
}
break;
@ -159,7 +160,7 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
c8 matName[WORD_BUFFER_LENGTH];
bufPtr = goAndCopyNextWord(matName, bufPtr, WORD_BUFFER_LENGTH, bufEnd);
// retrieve the material
SObjMtl *useMtl = findMtl(matName);
SObjMtl *useMtl = findMtl(matName, grpName);
// only change material if we found it
if (useMtl)
currMtl = useMtl;
@ -246,6 +247,8 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
bufPtr = goNextLine(bufPtr, bufEnd);
} // end while(bufPtr && (bufPtr-buf<filesize))
SMesh* mesh = new SMesh();
// Combine all the groups (meshbuffers) into the mesh
for ( u32 m = 0; m < Materials.size(); ++m )
{
@ -507,6 +510,7 @@ void COBJMeshFileLoader::readMTL(const c8* fileName, core::stringc relPath)
SceneManager->getVideoDriver()->makeNormalMapTexture(texture, bumpiness);
currMaterial->Meshbuffer->Material.setTexture(1, texture);
currMaterial->Meshbuffer->Material.MaterialType=video::EMT_PARALLAX_MAP_SOLID;
currMaterial->Meshbuffer->Material.MaterialTypeParam=0.035f;
}
else if (type==2)
{
@ -572,15 +576,13 @@ void COBJMeshFileLoader::readMTL(const c8* fileName, core::stringc relPath)
// end of file. if there's an existing material, store it
if ( currMaterial )
{
Materials.push_back( currMaterial );
currMaterial = 0;
}
delete [] buf;
mtlReader->drop();
}
//! Read RGB color
const c8* COBJMeshFileLoader::readColor(const c8* bufPtr, video::SColor& color, const c8* const bufEnd)
{
@ -640,18 +642,30 @@ const c8* COBJMeshFileLoader::readBool(const c8* bufPtr, bool& tf, const c8* con
}
COBJMeshFileLoader::SObjMtl* COBJMeshFileLoader::findMtl(const c8* mtlName)
COBJMeshFileLoader::SObjMtl* COBJMeshFileLoader::findMtl(const core::stringc& mtlName, const core::stringc& grpName)
{
COBJMeshFileLoader::SObjMtl* defMaterial = 0;
for (u32 i = 0; i < Materials.size(); ++i)
{
if ( Materials[i]->Name == mtlName )
return Materials[i];
{
if ( Materials[i]->Group == grpName )
return Materials[i];
else
if ( Materials[i]->Group == "" )
defMaterial = Materials[i];
}
}
if (defMaterial)
{
Materials.push_back(new SObjMtl(*defMaterial));
Materials.getLast()->Group = grpName;
return Materials.getLast();
}
return 0;
}
//! skip space characters and stop on first non-space
const c8* COBJMeshFileLoader::goFirstWord(const c8* buf, const c8* const bufEnd)
{
@ -812,9 +826,7 @@ bool COBJMeshFileLoader::retrieveVertexIndices(c8* vertexData, s32* idx, const c
void COBJMeshFileLoader::cleanUp()
{
u32 i;
for (i = 0; i < Materials.size(); ++i )
for (u32 i=0; i < Materials.size(); ++i )
{
Materials[i]->Meshbuffer->drop();
delete Materials[i];
@ -827,5 +839,5 @@ void COBJMeshFileLoader::cleanUp()
} // end namespace scene
} // end namespace irr
#endif // _IRR_COMPILE_WITH_OBJ_LOADER_

10
source/Irrlicht/COBJMeshFileLoader.h
View File

@ -51,12 +51,16 @@ private:
}
SObjMtl(SObjMtl& o)
: Meshbuffer(o.Meshbuffer), Name(o.Name),
: Name(o.Name), Group(o.Group),
Bumpiness(o.Bumpiness), Illumination(o.Illumination)
{ o.Meshbuffer->grab(); }
{
Meshbuffer = new SMeshBuffer();
Meshbuffer->Material = o.Meshbuffer->Material;
}
scene::SMeshBuffer *Meshbuffer;
core::stringc Name;
core::stringc Group;
f32 Bumpiness;
c8 Illumination;
};
@ -77,7 +81,7 @@ private:
//! Read the material from the given file
void readMTL(const c8* fileName, core::stringc relPath);
//! Find and return the material with the given name
SObjMtl * findMtl(const c8* mtlName);
SObjMtl* findMtl(const core::stringc& mtlName, const core::stringc& grpName);
//! Read RGB color
const c8* readColor(const c8* bufPtr, video::SColor& color, const c8* const pBufEnd);