bool RBExport::ProcessSkin( INode* node )
{
m_pSkin = NULL;
m_pSkinData = NULL;
m_pPhysique = NULL;
Modifier* pMod = NULL;
// check for 'Skin' modifier
pMod = FindModifier( node, SKIN_CLASSID );
if (pMod)
{
m_pSkin = (ISkin*) pMod->GetInterface( I_SKIN );
if (!m_pSkin) return false;
m_pSkinData = m_pSkin->GetContextInterface( node );
// build bone reindexing table for the skin
int nBones = m_pSkin->GetNumBones();
for (int i = 0; i < nBones; i++)
{
INode* pBoneNode = m_pSkin->GetBone( i );
ExpNode* pExportedBone = GetExportedNode( pBoneNode );
m_pCurExpNode->m_BoneIdx.push_back( pExportedBone->m_Index );
}
return true;
}
// check for physique modifier
pMod = FindModifier( node, Class_ID( PHYSIQUE_CLASS_ID_A, PHYSIQUE_CLASS_ID_B ) );
if (pMod)
{
IPhysiqueExport* iPExport = (IPhysiqueExport*)pMod->GetInterface( I_PHYINTERFACE );
if (!iPExport) return false;
m_pPhysique = (IPhyContextExport*) iPExport->GetContextInterface( node );
if (!m_pPhysique) return false;
// convert to rigid with blending
m_pPhysique->ConvertToRigid ( TRUE );
m_pPhysique->AllowBlending ( TRUE );
return true;
}
return false;
} // RBExport::ProcessSkin
//-----------------------------------------------------------------------------
BOOL CExporter::Capture()
{
VERIFY (m_Style!=eExportUndef);
Modifier* pPhysique;
IPhysiqueExport* pExport;
IPhyContextExport* pContext;
Object* pObject;
Matrix3 matMesh;
Matrix3 matZero;
if (!m_MeshNode){
ERR("Select mesh and try again.");
m_bHasError=TRUE;
return FALSE;
}
pObject = m_MeshNode->GetObjectRef();
if (!IsExportableMesh(m_MeshNode,pObject)){
ERR("Can't receive node references.");
m_bHasError=TRUE;
return FALSE;
}
// Get export interface
pPhysique = FindPhysiqueModifier(m_MeshNode);
if (!pPhysique){
ERR("Can't find Physique modifier.");
m_bHasError=TRUE;
return FALSE;
}
pExport = (IPhysiqueExport *)pPhysique->GetInterface(I_PHYINTERFACE);
if (!pExport){
ERR("Can't find Physique interface.");
m_bHasError=TRUE;
return FALSE;
}
// Get mesh initial transform (used to mult by the bone matrices)
int rval = CGINTM(m_MeshNode,pExport->GetInitNodeTM(m_MeshNode, matMesh));
matZero.Zero();
if (rval || matMesh.Equals(matZero, 0.0)){
ERR("Old CS version. Can't export mesh");
matMesh.IdentityMatrix();
}
// Add hierrarhy parts that has no effect on vertices,
// but required for hierrarhy stability
if (eExportMotion==m_Style){
if (m_AllBones.empty()){
ERR("Invalid skin object. Bone not found.");
return FALSE;
}
EConsole.ProgressStart((float)m_AllBones.size(),"..Capturing bones");
for (DWORD i=0; i<m_AllBones.size(); i++){
AddBone(m_AllBones[i], matMesh, pExport);
EConsole.ProgressInc();
}
EConsole.ProgressEnd();
}
bool bRes = TRUE;
if (eExportSkin==m_Style){
// For a given Object's INode get a
// ModContext Interface from the Physique Export Interface:
pContext = (IPhyContextExport *)pExport->GetContextInterface(m_MeshNode);
if (!pContext){
ERR("Can't find Physique context interface.");
return FALSE;
}
// convert to rigid with blending
pContext->ConvertToRigid(TRUE);
pContext->AllowBlending (TRUE);
// process vertices
int numVertices = pContext->GetNumberVertices();
EConsole.ProgressStart(float(numVertices),"..Capturing vertices");
for (int iVertex = 0; iVertex < numVertices; iVertex++ ){
IPhyVertexExport *pVertexExport = (IPhyVertexExport *)pContext->GetVertexInterface(iVertex);
R_ASSERT(pVertexExport);
// What kind of vertices are these?
int iVertexType = pVertexExport->GetVertexType();
IPhyRigidVertex* pRigidVertex=(IPhyRigidVertex*)pContext->GetVertexInterface(iVertex);
R_ASSERT (pRigidVertex);
switch (iVertexType){
case RIGID_TYPE:{
INode* node = pRigidVertex->GetNode();
R_ASSERT (node);
LPCSTR nm = node->GetName();
// get bone and create vertex
CVertexDef* pVertex = AddVertex();
int boneId = AddBone(node,matMesh,pExport);
if(BONE_NONE==boneId){
ERR ("Invalid bone: ",node->GetName());
bRes = FALSE;
}else pVertex->Append (boneId,1.f);
}break;
case RIGID_BLENDED_TYPE:{
IPhyBlendedRigidVertex* pBlendedRigidVertex=(IPhyBlendedRigidVertex*)pRigidVertex;
int cnt = pBlendedRigidVertex->GetNumberNodes();
CVertexDef* pVertex = AddVertex();
for (int i=0; i<cnt; i++){
INode* node = pBlendedRigidVertex->GetNode(i);
R_ASSERT (node);
LPCSTR nm = node->GetName();
// get bone and create vertex
int boneId = AddBone(node,matMesh,pExport);
if(BONE_NONE==boneId){
ERR ("Invalid bone: ",node->GetName());
bRes = FALSE;
}else pVertex->Append(boneId,pBlendedRigidVertex->GetWeight(i));
}
}break;
}
// release vertex
pContext->ReleaseVertexInterface( pRigidVertex );
EConsole.ProgressInc();
if (!bRes) break;
}
EConsole.ProgressEnd();
if (!bRes) return FALSE;
static int remap[3];
if (U.m_SkinFlipFaces){
remap[0] = 0;
remap[1] = 1;
remap[2] = 2;
}else{
remap[0] = 0;
remap[1] = 2;
remap[2] = 1;
}
// Process mesh
// Get object from node. Abort if no object.
Log("..Transforming mesh");
BOOL bDeleteTriObject;
R_ASSERT (pObject);
TriObject * pTriObject = GetTriObjectFromObjRef(pObject, &bDeleteTriObject);
if (!pTriObject){
ERR("Can't create tri object.");
return FALSE;
}
Mesh& M = pTriObject->mesh;
// Vertices
{
// check match with
int iNumVert = M.getNumVerts();
if (!(iNumVert==numVertices && iNumVert==m_Vertices.size()))
{
ERR("Non attached vertices found.");
if (bDeleteTriObject) delete(pTriObject);
return FALSE;
}
// transform vertices
for (int i=0; i<iNumVert; i++){
Point3 P = M.getVert(i);
Point3 T = matMesh.PointTransform(P);
T *= m_fGlobalScale;
m_Vertices[i]->SetPosition(T);
}
}
Log("..Parsing materials");
// Parse Materials
m_MtlMain = m_MeshNode->GetMtl();
R_ASSERT(m_MtlMain);
DWORD cSubMaterials=m_MtlMain->NumSubMtls();
if (cSubMaterials < 1) {
// Count the material itself as a submaterial.
cSubMaterials = 1;
}
// build normals
M.buildRenderNormals();
Log("..Converting vertices");
// our Faces and Vertices
{
for (int i=0; i<M.getNumFaces(); i++){
Face* gF = M.faces + i;
TVFace* tF = M.tvFace + i;
int m_id = gF->getMatID();
if (cSubMaterials == 1){
m_id = 0;
}else{
// SDK recommends mod'ing the material ID by the valid # of materials,
// as sometimes a material number that's too high is returned.
m_id %= cSubMaterials;
}
st_FACE* nF = xr_new<st_FACE>();
nF->m_id = m_id;
nF->sm_group = gF->getSmGroup();
for (int VVV=0; VVV<3; VVV++){
int vert_id = gF->v[remap[VVV]];
CVertexDef &D = *(m_Vertices[vert_id]);
Point3 &UV = M.tVerts[tF->t[remap[VVV]]];
st_VERT v;
v.Set (D);
v.P.set (D.P);
v.SetUV (UV.x,1-UV.y);
// v.sm_group = U.m_SkinSuppressSmoothGroup?0:gF->getSmGroup(); // smooth group
nF->v[VVV] = AddVert(v);
}
m_ExpFaces.push_back(nF);
}
}
if (bDeleteTriObject) delete(pTriObject);
}
UpdateParenting();
return bRes;
};
static void extractTriangleGeometry( GmModel* gm, INode* node, Mesh* mesh, Mtl* material )
{
#ifdef SGEXPORT_PHYSIQUE
Modifier* phyMod = 0;
IPhysiqueExport* phyExport = 0;
IPhyContextExport* mcExport = 0;
#endif
Modifier* skinMod = 0;
ISkin* skin = 0;
String nodeName ( node->GetName() );
try
{
// vertex transform to left-handed system
Matrix3 pivot = TmUtil::getPivotTransform( node );
Matrix3 vertexTM = pivot * s_convtm;
bool insideOut = TmUtil::hasNegativeParity( pivot );
/*Matrix4x4 pm = TmUtil::toLH( vertexTM );
Debug::println( "Object {0} vertex local TM is", nodeName );
Debug::println( " {0,#.###} {1,#.###} {2,#.###} {3,#.###}", pm(0,0), pm(0,1), pm(0,2), pm(0,3) );
Debug::println( " {0,#.###} {1,#.###} {2,#.###} {3,#.###}", pm(1,0), pm(1,1), pm(1,2), pm(1,3) );
Debug::println( " {0,#.###} {1,#.###} {2,#.###} {3,#.###}", pm(2,0), pm(2,1), pm(2,2), pm(2,3) );
Debug::println( " {0,#.###} {1,#.###} {2,#.###} {3,#.###}", pm(3,0), pm(3,1), pm(3,2), pm(3,3) );*/
// add vertex positions
int vertices = mesh->getNumVerts();
for ( int vi = 0 ; vi < vertices ; ++vi )
{
Point3 v = vertexTM * mesh->verts[vi];
mb::Vertex* vert = gm->addVertex();
vert->setPosition( v.x, v.y, v.z );
}
// add vertex weights (from Physique modifier)
#ifdef SGEXPORT_PHYSIQUE
phyMod = PhyExportUtil::findPhysiqueModifier( node );
if ( phyMod )
{
Debug::println( " Found Physique modifier: {0}", gm->name );
// get (possibly shared) Physique export interface
phyExport = (IPhysiqueExport*)phyMod->GetInterface( I_PHYINTERFACE );
if( !phyExport )
throw Exception( Format("No Physique modifier export interface") );
// export from initial pose?
phyExport->SetInitialPose( false );
// get (unique) context dependent export inteface
mcExport = (IPhyContextExport*)phyExport->GetContextInterface( node );
if( !mcExport )
throw Exception( Format("No Physique modifier context export interface") );
// convert to rigid for time independent vertex assignment
mcExport->ConvertToRigid( true );
// allow blending to export multi-link assignments
mcExport->AllowBlending( true );
// list bones
Vector<INode*> bones( Allocator<INode*>(__FILE__,__LINE__) );
PhyExportUtil::listBones( mcExport, bones );
// add vertex weight maps
for ( int i = 0 ; i < bones.size() ; ++i )
{
INode* bone = bones[i];
String name = bone->GetName();
mb::VertexMap* vmap = gm->addVertexMap( 1, name, mb::VertexMapFormat::VERTEXMAP_WEIGHT );
PhyExportUtil::addWeights( vmap, bone, mcExport );
}
}
#endif // SGEXPORT_PHYSIQUE
// add vertex weights (from Skin modifier)
skinMod = SkinExportUtil::findSkinModifier( node );
if ( skinMod )
{
skin = (ISkin*)skinMod->GetInterface(I_SKIN);
require( skin );
ISkinContextData* skincx = skin->GetContextInterface( node );
require( skincx );
Debug::println( " Found Skin modifier: {0} ({1} bones, {2} points)", gm->name, skin->GetNumBones(), skincx->GetNumPoints() );
if ( skincx->GetNumPoints() != gm->vertices() )
throw Exception( Format("Only some vertices ({0}/{1}) of {2} are skinned", skincx->GetNumPoints(), gm->vertices(), gm->name) );
// list bones
Vector<INode*> bones( Allocator<INode*>(__FILE__,__LINE__) );
SkinExportUtil::listBones( skin, bones );
// add vertex weight maps
for ( int i = 0 ; i < bones.size() ; ++i )
{
INode* bone = bones[i];
String name = bone->GetName();
mb::VertexMap* vmap = gm->addVertexMap( 1, name, mb::VertexMapFormat::VERTEXMAP_WEIGHT );
SkinExportUtil::addWeights( vmap, bone, skin, skincx );
//Debug::println( " Bone {0} is affecting {1} vertices", name, vmap->size() );
}
// DEBUG: print skin node tm and initial object tm
/*Matrix3 tm;
int ok = skin->GetSkinInitTM( node, tm );
require( ok == SKIN_OK );
Debug::println( " NodeInitTM of {0}", nodeName );
TmUtil::println( tm, 4 );
ok = skin->GetSkinInitTM( node, tm, true );
require( ok == SKIN_OK );
Debug::println( " NodeObjectTM of {0}", nodeName );
TmUtil::println( tm, 4 );*/
// DEBUG: print bones
/*Debug::println( " bones of {0}:", nodeName );
for ( int i = 0 ; i < bones.size() ; ++i )
{
Debug::println( " bone ({0}): {1}", i, String(bones[i]->GetName()) );
skin->GetBoneInitTM( bones[i], tm );
Debug::println( " InitNodeTM:" );
TmUtil::println( tm, 6 );
skin->GetBoneInitTM( bones[i], tm, true );
Debug::println( " InitObjectTM:" );
TmUtil::println( tm, 6 );
}*/
// DEBUG: print bones used by the points
/*for ( int i = 0 ; i < skincx->GetNumPoints() ; ++i )
{
int bonec = skincx->GetNumAssignedBones(i);
Debug::println( " point {0} has {1} bones", i, bonec );
for ( int k = 0 ; k < bonec ; ++k )
{
int boneidx = skincx->GetAssignedBone( i, k );
float w = skincx->GetBoneWeight( i, k );
Debug::println( " point {0} boneidx ({1}): {2}, weight {3}", i, k, boneidx, w );
}
}*/
}
// ensure clockwise polygon vertex order
int vx[3] = {2,1,0};
if ( insideOut )
{
int tmp = vx[0];
vx[0] = vx[2];
vx[2] = tmp;
}
// list unique materials used by the triangles
Vector<ShellMaterial> usedMaterials( Allocator<ShellMaterial>(__FILE__,__LINE__) );
if ( material )
{
for ( int fi = 0 ; fi < mesh->getNumFaces() ; ++fi )
{
Face& face = mesh->faces[fi];
int mergesubmaterial = -1;
int originalsubmaterial = -1;
for ( int j = 0; j < material->NumSubMtls(); ++j)
{
// Get Sub Material Slot name
TSTR name = material->GetSubMtlSlotName(j);
// Light maps are stored in sub material slot named "Baked Material"
if ( strcmp( name, "Baked Material" ) == 0 )
mergesubmaterial = j;
else
originalsubmaterial = j;
}
if ( mergesubmaterial != -1 ) // A baked material was found, shell materials will be created
{
Mtl* mat = material->GetSubMtl( originalsubmaterial );
Mtl* bakedmtl = material->GetSubMtl( mergesubmaterial );
if ( mat->NumSubMtls() > 0 ) // Check for nested multi-material
{
for ( int j = 0; j < mat->NumSubMtls(); ++j)
usedMaterials.add( ShellMaterial( mat->GetSubMtl( face.getMatID() % mat->NumSubMtls() ), bakedmtl ) );
} else
usedMaterials.add( ShellMaterial( mat, bakedmtl ) );
}
else if ( material->NumSubMtls() > 0 ) // Multi-material without baked material
{
usedMaterials.add( ShellMaterial( material->GetSubMtl( face.getMatID() % material->NumSubMtls() ), 0 ) );
}
else // Single material without baked material
{
usedMaterials.add( ShellMaterial( material, 0 ) );
}
}
std::sort( usedMaterials.begin(), usedMaterials.end() );
usedMaterials.setSize( std::unique( usedMaterials.begin(), usedMaterials.end() ) - usedMaterials.begin() );
}
// create used materials
for ( int mi = 0 ; mi < usedMaterials.size() ; ++mi )
{
ShellMaterial shellmtl = usedMaterials[mi];
gm->materials.add( GmUtil::createGmMaterial( shellmtl.original, shellmtl.baked ) );
}
// add triangles
for ( int fi = 0 ; fi < mesh->getNumFaces() ; ++fi )
{
mb::Polygon* poly = gm->addPolygon();
// triangle indices
Face& face = mesh->faces[fi];
for ( int vxi = 0 ; vxi < 3 ; ++vxi )
{
int vi = face.v[ vx[vxi] ];
require( vi >= 0 && vi < gm->vertices() );
mb::Vertex* vert = gm->getVertex( vi );
poly->addVertex( vert );
}
// triangle material
int polyMaterialIndex = 0;
if ( material )
{
ShellMaterial mat( material, 0 );
int numsubmaterials = material->NumSubMtls();
if ( numsubmaterials > 0 )
{
mat.original = material->GetSubMtl( face.getMatID() % material->NumSubMtls() );
for ( int j = 0; j < numsubmaterials; ++j) // Is baked material present?
{
TSTR name = material->GetSubMtlSlotName(j);
if ( strcmp( name, "Baked Material" ) == 0 )
mat.baked = material->GetSubMtl( j );
if ( strcmp( name, "Original Material" ) == 0 )
mat.original = material->GetSubMtl( j );
}
if ( mat.original->NumSubMtls() > 0 ) // Is there a nested multi-material?
{
mat.original = mat.original->GetSubMtl( face.getMatID() % mat.original->NumSubMtls() );
}
}
for ( int mi = 0 ; mi < usedMaterials.size() ; ++mi )
{
if ( usedMaterials[mi] == mat )
{
polyMaterialIndex = mi;
break;
}
}
}
poly->setMaterial( polyMaterialIndex );
}
// add vertex colors
int mp = 0;
if ( mesh->mapSupport(mp) && mesh->getNumMapVerts(mp) > 0 )
{
mb::DiscontinuousVertexMap* vmad = gm->addDiscontinuousVertexMap( 3, "rgb", mb::VertexMapFormat::VERTEXMAP_RGB );
int tverts = mesh->getNumMapVerts( mp );
UVVert* tvert = mesh->mapVerts( mp );
TVFace* tface = mesh->mapFaces( mp );
//Debug::println( "Vertex colors:" );
for ( int fi = 0 ; fi < mesh->getNumFaces() ; ++fi )
{
Face& face = mesh->faces[fi];
mb::Polygon* poly = gm->getPolygon( fi );
for ( int vxi = 0 ; vxi < 3 ; ++vxi )
{
int vi = face.v[ vx[vxi] ];
mb::Vertex* vert = gm->getVertex( vi );
Point3 tc = tvert[ tface[fi].t[ vx[vxi] ] % tverts ];
float rgb[3] = {tc.x, tc.y, tc.z};
vmad->addValue( vert->index(), poly->index(), rgb, 3 );
//Debug::println( " vertex[{0}].rgb: {1} {2} {3}", vert->index(), rgb[0], rgb[1], rgb[2] );
}
}
}
// add texcoord layers
int lastCoords = MAX_MESHMAPS-2;
while ( lastCoords > 0 && (!mesh->mapSupport(lastCoords) || 0 == mesh->getNumMapVerts(lastCoords)) )
--lastCoords;
if ( lastCoords > 8 )
throw IOException( Format("Too many texture coordinate sets ({1}) in {0}", gm->name, lastCoords) );
for ( mp = 1 ; mp <= lastCoords ; ++mp )
{
mb::DiscontinuousVertexMap* vmad = gm->addDiscontinuousVertexMap( 2, "uv", mb::VertexMapFormat::VERTEXMAP_TEXCOORD );
if ( mesh->mapSupport(mp) && mesh->getNumMapVerts(mp) > 0 )
{
int tverts = mesh->getNumMapVerts( mp );
UVVert* tvert = mesh->mapVerts( mp );
TVFace* tface = mesh->mapFaces( mp );
for ( int fi = 0 ; fi < mesh->getNumFaces() ; ++fi )
{
Face& face = mesh->faces[fi];
mb::Polygon* poly = gm->getPolygon( fi );
for ( int vxi = 0 ; vxi < 3 ; ++vxi )
{
int vi = face.v[ vx[vxi] ];
mb::Vertex* vert = gm->getVertex( vi );
Point3 tc = tvert[ tface[fi].t[ vx[vxi] ] % tverts ];
float uv[2] = {tc.x, 1.f-tc.y};
vmad->addValue( vert->index(), poly->index(), uv, 2 );
}
}
}
}
// compute face vertex normals from smoothing groups
require( mesh->getNumFaces() == gm->polygons() );
mb::DiscontinuousVertexMap* vmad = gm->addDiscontinuousVertexMap( 3, "vnormals", mb::VertexMapFormat::VERTEXMAP_NORMALS );
for ( int fi = 0 ; fi < gm->polygons() ; ++fi )
{
mb::Polygon* poly = gm->getPolygon( fi );
require( poly );
require( poly->index() >= 0 && poly->index() < mesh->getNumFaces() );
Face& face = mesh->faces[ poly->index() ];
require( poly->vertices() == 3 );
for ( int j = 0 ; j < poly->vertices() ; ++j )
{
Vector3 vn(0,0,0);
mb::Vertex* vert = poly->getVertex( j );
// sum influencing normals
for ( int k = 0 ; k < vert->polygons() ; ++k )
{
mb::Polygon* vpoly = vert->getPolygon( k );
require( vpoly );
require( vpoly->index() >= 0 && vpoly->index() < mesh->getNumFaces() );
Face& vface = mesh->faces[ vpoly->index() ];
if ( 0 != (face.smGroup & vface.smGroup) || poly == vpoly )
{
Vector3 vpolyn;
vpoly->getNormal( &vpolyn.x, &vpolyn.y, &vpolyn.z );
vn += vpolyn;
}
}
// normalize
float lensqr = vn.lengthSquared();
if ( lensqr > Float::MIN_VALUE )
vn *= 1.f / Math::sqrt(lensqr);
else
vn = Vector3(0,0,0);
vmad->addValue( vert->index(), poly->index(), vn.begin(), 3 );
}
}
// re-export mesh points in non-deformed pose if Skin modifier present
// NOTE: 3ds Mesh must not be used after this, because collapsing can invalidate it
if ( skin )
{
// evaluate derived object before Skin modifier
TimeValue time = 0;
bool evalNext = false;
bool evalDone = false;
::ObjectState os;
::Object* obj = node->GetObjectRef();
while ( obj->SuperClassID() == GEN_DERIVOB_CLASS_ID && !evalDone )
{
IDerivedObject* derivedObj = static_cast<IDerivedObject*>(obj);
for ( int modStack = 0 ; modStack < derivedObj->NumModifiers() ; ++modStack )
{
if ( evalNext )
{
os = derivedObj->Eval( time, modStack );
evalDone = true;
break;
}
Modifier* mod = derivedObj->GetModifier(modStack);
if ( mod->ClassID() == SKIN_CLASSID )
evalNext = true;
}
obj = derivedObj->GetObjRef();
}
// evaluate possible non-derived object
if ( evalNext && !evalDone )
{
os = obj->Eval( time );
evalDone = true;
}
// convert to TriObject and get points
if ( evalDone && os.obj->CanConvertToType( Class_ID(TRIOBJ_CLASS_ID,0) ) )
{
Debug::println( " Evaluating object {0} before Skin modifier", nodeName );
// get TriObject
std::auto_ptr<TriObject> triAutoDel(0);
TriObject* tri = static_cast<TriObject*>( os.obj->ConvertToType( time, Class_ID(TRIOBJ_CLASS_ID,0) ) );
if ( tri != os.obj )
triAutoDel = std::auto_ptr<TriObject>( tri );
// get mesh points before Skin is applied
//Debug::println( " Original collapsed mesh has {0} points, before Skin modifier {1} points", mesh->getNumVerts(), tri->mesh.getNumVerts() );
require( gm->vertices() == tri->mesh.getNumVerts() );
Mesh* mesh = &tri->mesh;
int vertices = mesh->getNumVerts();
for ( int vi = 0 ; vi < vertices ; ++vi )
{
Point3 v = vertexTM * mesh->verts[vi];
mb::Vertex* vert = gm->getVertex( vi );
vert->setPosition( v.x, v.y, v.z );
}
}
}
// split vertices with discontinuous vertex map values
for ( int vmi = 0 ; vmi < gm->discontinuousVertexMaps() ; ++vmi )
{
mb::DiscontinuousVertexMap* vmad = gm->getDiscontinuousVertexMap( vmi );
gm->splitVertexDiscontinuities( vmad );
}
// find base texcoord layer
mb::DiscontinuousVertexMap* texcoords = 0;
for ( int i = 0 ; i < gm->discontinuousVertexMaps() ; ++i )
{
mb::DiscontinuousVertexMap* vmad = gm->getDiscontinuousVertexMap(i);
if ( vmad->dimensions() == 2 && vmad->format() == mb::VertexMapFormat::VERTEXMAP_TEXCOORD )
{
texcoords = vmad;
break;
}
}
if ( !texcoords )
Debug::printlnError( "Object {0} must have texture coordinates", gm->name );
// requires identification of footsteps in MySceneExport::isExportableGeometry
//throw IOException( Format("Object {0} must have texture coordinates", gm->name) );
// optimize
gm->removeUnusedVertices();
// cleanup export interfaces
#ifdef SGEXPORT_PHYSIQUE
if ( mcExport )
{
require( phyExport );
phyExport->ReleaseContextInterface( mcExport );
mcExport = 0;
}
if ( phyExport )
{
require( phyMod );
phyMod->ReleaseInterface( I_PHYINTERFACE, phyExport );
phyExport = 0;
}
#endif // SGEXPORT_PHYSIQUE
if ( skin )
{
skinMod->ReleaseInterface( I_SKIN, skin );
skin = 0;
skinMod = 0;
}
}
catch ( ... )
{
// cleanup export interfaces
#ifdef SGEXPORT_PHYSIQUE
if ( mcExport )
{
require( phyExport );
phyExport->ReleaseContextInterface( mcExport );
mcExport = 0;
}
if ( phyExport )
{
require( phyMod );
phyMod->ReleaseInterface( I_PHYINTERFACE, phyExport );
phyExport = 0;
}
#endif // SGEXPORT_PHYSIQUE
if ( skin )
{
skinMod->ReleaseInterface( I_SKIN, skin );
skin = 0;
skinMod = 0;
}
throw;
}
}
CVertexCandidate *CMaxMesh::GetVertexCandidate(CSkeletonCandidate *pSkeletonCandidate, int faceId, int faceVertexId)
{
// check for valid mesh and physique modifier
if((m_pIMesh == 0))
{
theExporter.SetLastError("Invalid handle.", __FILE__, __LINE__);
return 0;
}
// check if face id is valid
if((faceId < 0) || (faceId >= m_pIMesh->getNumFaces()))
{
theExporter.SetLastError("Invalid face id found.", __FILE__, __LINE__);
return 0;
}
// check if face vertex id is valid
if((faceVertexId < 0) || (faceVertexId >= 3))
{
theExporter.SetLastError("Invalid face vertex id found.", __FILE__, __LINE__);
return 0;
}
// allocate a new vertex candidate
CVertexCandidate *pVertexCandidate;
pVertexCandidate = new CVertexCandidate();
if(pVertexCandidate == 0)
{
theExporter.SetLastError("Memory allocation failed.", __FILE__, __LINE__);
return 0;
}
// create the new vertex candidate
if(!pVertexCandidate->Create())
{
delete pVertexCandidate;
return 0;
}
// get vertex id
int vertexId;
vertexId = m_pIMesh->faces[faceId].v[faceVertexId];
// get the absolute vertex position
Point3 vertex;
vertex = m_pIMesh->getVert(vertexId) * m_tm;
// set the vertex candidate position
pVertexCandidate->SetPosition(vertex.x, vertex.y, vertex.z);
pVertexCandidate->SetUniqueId(vertexId);
// get the absolute vertex normal
Point3 normal;
normal = GetVertexNormal(faceId, vertexId);
normal = normal * Inverse(Transpose(m_tm));
normal = normal.Normalize();
// set the vertex candidate normal
pVertexCandidate->SetNormal(normal.x, normal.y, normal.z);
if(m_pIMesh->numCVerts > 0)
{
VertColor vc;
vc = m_pIMesh->vertCol[m_pIMesh->vcFace[faceId].t[faceVertexId]];
CalVector vcCal(vc.x, vc.y, vc.z);
pVertexCandidate->SetVertColor(vcCal);
}
// get the vertex weight array
float *pVertexWeights;
pVertexWeights = m_pIMesh->getVertexWeights();
//if( pVertexWeights == NULL ) {
// delete pVertexCandidate;
// theExporter.SetLastError("Mesh has no vertex weights", __FILE__, __LINE__);
// return 0;
//}
// get the vertex weight (if possible)
float weight;
if(pVertexWeights != 0)
{
weight = pVertexWeights[vertexId];
}
else
{
weight = 0.0f;
}
// another 3ds max weird behaviour:
// zero out epsilon weights
if(weight < 0.0005f) weight = 0.0f;
// set the vertex candidate weight
pVertexCandidate->SetPhysicalProperty(weight);
// get the material id of the face
int materialId;
materialId = GetFaceMaterialId(faceId);
if((materialId < 0) || (materialId >= (int)m_vectorStdMat.size()))
{
delete pVertexCandidate;
theExporter.SetLastError("Invalid material id found.", __FILE__, __LINE__);
return 0;
}
// get the material of the face
StdMat *pStdMat;
pStdMat = m_vectorStdMat[materialId];
// loop through all the mapping channels and extract texture coordinates
int mapId;
for(mapId = 0; mapId < pStdMat->NumSubTexmaps(); mapId++)
{
// get texture map
Texmap *pTexMap;
pTexMap = pStdMat->GetSubTexmap(mapId);
// check if map is valid
if((pTexMap != 0) && (pStdMat->MapEnabled(mapId)))
{
// get the mapping channel
int channel;
channel = pTexMap->GetMapChannel();
bool bValidUV;
bValidUV = false;
// extract the texture coordinate
UVVert uvVert;
if(m_pIMesh->mapSupport(channel))
{
TVFace *pTVFace;
pTVFace = m_pIMesh->mapFaces(channel);
UVVert *pUVVert;
pUVVert = m_pIMesh->mapVerts(channel);
uvVert = pUVVert[pTVFace[faceId].t[faceVertexId]];
bValidUV = true;
}
else if(m_pIMesh->numTVerts > 0)
{
uvVert = m_pIMesh->tVerts[m_pIMesh->tvFace[faceId].t[faceVertexId]];
bValidUV = true;
}
// if we found valid texture coordinates, add them to the vertex candidate
if(bValidUV)
{
// apply a possible uv generator
StdUVGen *pStdUVGen;
pStdUVGen = (StdUVGen *)pTexMap->GetTheUVGen();
if(pStdUVGen != 0)
{
Matrix3 tmUV;
pStdUVGen->GetUVTransform(tmUV);
uvVert = uvVert * tmUV;
}
// add texture coordinate to the vertex candidate, inverting the y coordinate
pVertexCandidate->AddTextureCoordinate(uvVert.x, 1.0f - uvVert.y);
}
}
}
// check for physique modifier
if(m_modifierType == MODIFIER_PHYSIQUE)
{
// create a physique export interface
IPhysiqueExport *pPhysiqueExport;
pPhysiqueExport = (IPhysiqueExport *)m_pModifier->GetInterface(I_PHYINTERFACE);
if(pPhysiqueExport == 0)
{
delete pVertexCandidate;
theExporter.SetLastError("Physique modifier interface not found.", __FILE__, __LINE__);
return 0;
}
// create a context export interface
IPhyContextExport *pContextExport;
pContextExport = (IPhyContextExport *)pPhysiqueExport->GetContextInterface(m_pINode);
if(pContextExport == 0)
{
m_pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
delete pVertexCandidate;
theExporter.SetLastError("Context export interface not found.", __FILE__, __LINE__);
return 0;
}
// set the flags in the context export interface
pContextExport->ConvertToRigid(TRUE);
pContextExport->AllowBlending(TRUE);
// get the vertex export interface
IPhyVertexExport *pVertexExport;
pVertexExport = (IPhyVertexExport *)pContextExport->GetVertexInterface(vertexId);
if(pVertexExport == 0)
{
pPhysiqueExport->ReleaseContextInterface(pContextExport);
m_pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
delete pVertexCandidate;
theExporter.SetLastError("Vertex export interface not found.", __FILE__, __LINE__);
return 0;
}
// get the vertex type
int vertexType;
vertexType = pVertexExport->GetVertexType();
// handle the specific vertex type
if(vertexType == RIGID_TYPE)
{
// typecast to rigid vertex
IPhyRigidVertex *pTypeVertex;
pTypeVertex = (IPhyRigidVertex *)pVertexExport;
// add the influence to the vertex candidate
// get the influencing bone
if(!AddBoneInfluence(pSkeletonCandidate, pVertexCandidate, pTypeVertex->GetNode(), 1.0f))
{
pPhysiqueExport->ReleaseContextInterface(pContextExport);
m_pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
delete pVertexCandidate;
theExporter.SetLastError("Invalid bone assignment.", __FILE__, __LINE__);
return 0;
}
}
else if(vertexType == RIGID_BLENDED_TYPE)
{
// typecast to blended vertex
IPhyBlendedRigidVertex *pTypeVertex;
pTypeVertex = (IPhyBlendedRigidVertex *)pVertexExport;
// loop through all influencing bones
int nodeId;
for(nodeId = 0; nodeId < pTypeVertex->GetNumberNodes(); nodeId++)
{
// add the influence to the vertex candidate
if(!AddBoneInfluence(pSkeletonCandidate, pVertexCandidate, pTypeVertex->GetNode(nodeId), pTypeVertex->GetWeight(nodeId)))
{
pPhysiqueExport->ReleaseContextInterface(pContextExport);
m_pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
delete pVertexCandidate;
theExporter.SetLastError("Invalid bone assignment.", __FILE__, __LINE__);
return 0;
}
}
}
// release all interfaces
pPhysiqueExport->ReleaseContextInterface(pContextExport);
m_pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
}
#if MAX_RELEASE >= 4000
// check for skin modifier
else if(m_modifierType == MODIFIER_SKIN)
{
// create a skin interface
ISkin *pSkin;
pSkin = (ISkin*)m_pModifier->GetInterface(I_SKIN);
if(pSkin == 0)
{
delete pVertexCandidate;
theExporter.SetLastError("Skin modifier interface not found.", __FILE__, __LINE__);
return 0;
}
// create a skin context data interface
ISkinContextData *pSkinContextData;
pSkinContextData = (ISkinContextData *)pSkin->GetContextInterface(m_pINode);
if(pSkinContextData == 0)
{
m_pModifier->ReleaseInterface(I_SKIN, pSkin);
delete pVertexCandidate;
theExporter.SetLastError("Skin context data interface not found.", __FILE__, __LINE__);
return 0;
}
// loop through all influencing bones
int nodeId;
for(nodeId = 0; nodeId < pSkinContextData->GetNumAssignedBones(vertexId); nodeId++)
{
// get the bone id
int boneId;
boneId = pSkinContextData->GetAssignedBone(vertexId, nodeId);
if(boneId < 0) continue;
// add the influence to the vertex candidate
if(!AddBoneInfluence(pSkeletonCandidate, pVertexCandidate, pSkin->GetBone(boneId), pSkinContextData->GetBoneWeight(vertexId, nodeId)))
{
m_pModifier->ReleaseInterface(I_SKIN, pSkin);
delete pVertexCandidate;
theExporter.SetLastError("Invalid bone assignment.", __FILE__, __LINE__);
return 0;
}
}
// release all interfaces
m_pModifier->ReleaseInterface(I_SKIN, pSkin);
}
#endif
else if( m_modifierType == MODIFIER_MORPHER || m_modifierType == MODIFIER_NONE ) {
}
else
{
theExporter.SetLastError("No physique/skin/morpher modifier found.", __FILE__, __LINE__);
return 0;
}
return pVertexCandidate;
}
// --[ Method ]---------------------------------------------------------------
//
// - Class : CStravaganzaMaxTools
//
// - prototype : int BuildPhysiqueData(INode* pMaxNode,
// CObject* pObject,
// std::vector<std::string> &vecBoneNames,
// std::vector<CBlendedVertex> &vecBlendedVertices)
//
// - Purpose : Builds the bone data for a given node. Returns the number
// of bones processed (0 = failure).
//
// -----------------------------------------------------------------------------
int CStravaganzaMaxTools::BuildPhysiqueData(INode* pMaxNode,
CObject* pObject,
std::vector<std::string> &vecBoneNames,
std::vector<CBlendedVertex> &vecBlendedVertices)
{
int nCount = 0;
int nBoneCount = 0;
Modifier *pPhyModifier = NULL; // Physique modifier
IPhysiqueExport *pPhyExport = NULL; // Physique export interface
IPhyContextExport *pPhyObjExport = NULL; // Physique object export interface
vecBoneNames.clear();
vecBlendedVertices.clear();
// Build bone list
std::vector<INode*> vecMaxBones;
if(!AddNodeBones(vecMaxBones, pMaxNode))
{
LOG.Write("\nWARNING - Error building node %s bone list", pMaxNode->GetName());
return 0;
}
// Build bones name list
for(nBoneCount = 0; nBoneCount < vecMaxBones.size(); nBoneCount++)
{
vecBoneNames.push_back(vecMaxBones[nBoneCount]->GetName());
}
// Get Physique modifier
if(pPhyModifier = GetPhysiqueModifier(pMaxNode))
{
pPhyExport = (IPhysiqueExport *)pPhyModifier->GetInterface(I_PHYINTERFACE);
if(pPhyExport == NULL)
{
LOG.Write("\nWARNING - Couldn't get Physique export interface.\nFailed with node %s.", pMaxNode->GetName());
return 0;
}
}
// Get physique object export interface
pPhyObjExport = pPhyExport->GetContextInterface(pMaxNode);
if(pPhyObjExport == NULL)
{
pPhyModifier->ReleaseInterface(I_PHYINTERFACE, pPhyExport);
LOG.Write("\nWARNING - Unable to get physique context export.\nFailed with node %s.", pMaxNode->GetName());
return 0;
}
// Convert to rigid for time independent vertex assignment
// Allow blending to export multi-link assignments
pPhyObjExport->ConvertToRigid(true);
pPhyObjExport->AllowBlending(true);
// Build deformable vertex list
bool bOK = true;
int nBlendedCount = 0, nBlendedRigidCount = 0, nFloatingCount = 0;
for(nCount = 0; nCount < pPhyObjExport->GetNumberVertices(); nCount++)
{
IPhyVertexExport *pPhyVertExport;
IPhyBlendedRigidVertex *pPhyBRVertexExport;
IPhyRigidVertex *pPhyRigidVertexExport;
IPhyFloatingVertex *pPhyFloatingVertex;
pPhyVertExport = pPhyObjExport->GetVertexInterface(nCount);
CBlendedVertex blendedVertex;
float fTotalWeight = 0.0f;
bool bFloatingBones = false;
// Floating Vertex
pPhyFloatingVertex = pPhyObjExport->GetFloatingVertexInterface(nCount);
if(pPhyFloatingVertex)
{
bFloatingBones = true;
CVector3 v3OffsetVector;
float fWeight;
// More than one bone
int nNumVtxBones = pPhyFloatingVertex->GetNumberNodes();
// LOG.Write("\n%u - Floating, with %u bones", nCount, nNumVtxBones);
for(nBoneCount = 0; nBoneCount < nNumVtxBones; nBoneCount++)
{
int nIndex = GetBoneIndex(vecMaxBones, pPhyFloatingVertex->GetNode(nBoneCount));
if(nIndex == -1)
{
LOG.Write("\nWARNING - Unable to get bone index (%s)", pPhyFloatingVertex->GetNode(nBoneCount)->GetName());
bOK = false;
break;
}
float fTotal;
v3OffsetVector = Point3ToVector3(pPhyFloatingVertex->GetOffsetVector(nBoneCount));
fWeight = pPhyFloatingVertex->GetWeight(nBoneCount, fTotal);
fTotalWeight += fWeight;//fTotal;
//fWeight = fTotal;
// LOG.Write("\n Weight = %f (%s)", fWeight, pPhyFloatingVertex->GetNode(nBoneCount)->GetName());
blendedVertex.AddLink(v3OffsetVector, nIndex, fWeight);
}
// LOG.Write("\n Total = %f", fTotalWeight);
if(!ARE_EQUAL(fTotalWeight, 1.0f))
{
LOG.Write("\n WARNING - Vertex %u has total weights %f", nCount, fTotalWeight);
}
nFloatingCount++;
pPhyObjExport->ReleaseVertexInterface(pPhyFloatingVertex);
}
if(pPhyVertExport)
{
if(pPhyVertExport->GetVertexType() & BLENDED_TYPE)
{
CVector3 v3OffsetVector;
float fWeight;
// More than one bone
pPhyBRVertexExport = (IPhyBlendedRigidVertex *)pPhyVertExport;
int nNumVtxBones = pPhyBRVertexExport->GetNumberNodes();
// LOG.Write("\n%u - Blended, with %u bones", nCount, nNumVtxBones);
for(nBoneCount = 0; nBoneCount < nNumVtxBones; nBoneCount++)
{
int nIndex = GetBoneIndex(vecMaxBones, pPhyBRVertexExport->GetNode(nBoneCount));
if(nIndex == -1)
{
LOG.Write("\nWARNING - Unable to get bone index (%s)", pPhyBRVertexExport->GetNode(nBoneCount)->GetName());
bOK = false;
break;
}
v3OffsetVector = Point3ToVector3(pPhyBRVertexExport->GetOffsetVector(nBoneCount));
fWeight = pPhyBRVertexExport->GetWeight(nBoneCount);
fTotalWeight += fWeight;
// LOG.Write("\n Weight = %f (%s)", fWeight, pPhyBRVertexExport->GetNode(nBoneCount)->GetName());
blendedVertex.AddLink(v3OffsetVector, nIndex, fWeight);
}
// LOG.Write("\n Total = %f", fTotalWeight);
if(!ARE_EQUAL(fTotalWeight, 1.0f))
{
LOG.Write("\n WARNING - Vertex %u has total weights %f", nCount, fTotalWeight);
}
nBlendedCount++;
}
else
{
CVector3 v3OffsetVector;
float fWeight;
// Single bone
pPhyRigidVertexExport = (IPhyRigidVertex *)pPhyVertExport;
int nIndex = GetBoneIndex(vecMaxBones, pPhyRigidVertexExport->GetNode());
if(nIndex == -1)
{
LOG.Write("\nWARNING - Unable to get bone index (%s)", pPhyRigidVertexExport->GetNode()->GetName());
bOK = false;
break;
}
v3OffsetVector = Point3ToVector3(pPhyRigidVertexExport->GetOffsetVector());
fWeight = 1.0f;
fTotalWeight = 1.0f;
// LOG.Write("\n%u - Rigid (%s)", nCount, pPhyRigidVertexExport->GetNode()->GetName());
blendedVertex.AddLink(v3OffsetVector, nIndex, fWeight);
nBlendedRigidCount++;
}
pPhyObjExport->ReleaseVertexInterface(pPhyVertExport);
}
for(int i = 0; i < blendedVertex.GetNumLinks(); i++)
{
// Normalize
blendedVertex.SetWeight(i, blendedVertex.GetWeight(i) / fTotalWeight);
}
vecBlendedVertices.push_back(blendedVertex);
}
pPhyExport->ReleaseContextInterface(pPhyObjExport);
pPhyModifier->ReleaseInterface(I_PHYINTERFACE, pPhyExport);
if(!bOK)
{
vecMaxBones.clear();
vecBoneNames.clear();
vecBlendedVertices.clear();
}
else
{
LOG.Write("\nPhysique: %u bones, %u vertices (%u rigid, %u rigidblended, %u floating)",
vecBoneNames.size(),
vecBlendedVertices.size(),
nBlendedRigidCount,
nBlendedCount,
nFloatingCount);
}
return vecMaxBones.size();
}
// --[ Method ]---------------------------------------------------------------
//
// - Class : CStravaganzaMaxTools
//
// - prototype : bool AddNodeBones(std::vector<INode*> &vecMaxBones, INode *pMaxNode)
//
// - Purpose : Adds all bones belonging to the node to the given list.
//
// -----------------------------------------------------------------------------
bool CStravaganzaMaxTools::AddNodeBones(std::vector<INode*> &vecMaxBones, INode *pMaxNode)
{
int nCount = 0;
int nBoneCount = 0;
bool bOK = true;
Modifier *pPhyModifier = NULL; // Physique modifier
IPhysiqueExport *pPhyExport = NULL; // Physique export interface
IPhyContextExport *pPhyObjExport = NULL; // Physique object export interface
// Get Physique modifier
if(pPhyModifier = GetPhysiqueModifier(pMaxNode))
{
pPhyExport = (IPhysiqueExport *)pPhyModifier->GetInterface(I_PHYINTERFACE);
if(pPhyExport == NULL)
{
return false;
}
}
else
{
return false;
}
// Get physique object export interface
pPhyObjExport = pPhyExport->GetContextInterface(pMaxNode);
if(pPhyObjExport == NULL)
{
pPhyModifier->ReleaseInterface(I_PHYINTERFACE, pPhyExport);
return false;
}
pPhyObjExport->ConvertToRigid(true);
pPhyObjExport->AllowBlending(true);
INode *pMaxBone;
// Build bone list
LOG.Write("\nObject %s Bone List:", pMaxNode->GetName());
for(nCount = 0; nCount < pPhyObjExport->GetNumberVertices(); nCount++)
{
IPhyVertexExport *pPhyVertExport;
IPhyBlendedRigidVertex *pPhyBRVertexExport;
IPhyRigidVertex *pPhyRigidVertexExport;
IPhyFloatingVertex *pPhyFloatingVertex;
pPhyVertExport = pPhyObjExport->GetVertexInterface(nCount);
if(pPhyVertExport)
{
if(pPhyVertExport->GetVertexType() & BLENDED_TYPE)
{
pPhyBRVertexExport = (IPhyBlendedRigidVertex *)pPhyVertExport;
for(nBoneCount = 0; nBoneCount < pPhyBRVertexExport->GetNumberNodes(); nBoneCount++)
{
pMaxBone = pPhyBRVertexExport->GetNode(nBoneCount);
if(IsBoneInList(vecMaxBones, pMaxBone) == false)
{
// LOG.Write("\n %s (blended)", pMaxBone->GetName());
vecMaxBones.push_back(pMaxBone);
}
}
}
else
{
pPhyRigidVertexExport = (IPhyRigidVertex *)pPhyVertExport;
pMaxBone = pPhyRigidVertexExport->GetNode();
if(IsBoneInList(vecMaxBones, pMaxBone) == false)
{
// LOG.Write("\n %s (rigid)", pMaxBone->GetName());
vecMaxBones.push_back(pMaxBone);
}
}
pPhyObjExport->ReleaseVertexInterface(pPhyVertExport);
}
pPhyFloatingVertex = pPhyObjExport->GetFloatingVertexInterface(nCount);
if(pPhyFloatingVertex)
{
for(nBoneCount = 0; nBoneCount < pPhyFloatingVertex->GetNumberNodes(); nBoneCount++)
{
pMaxBone = pPhyFloatingVertex->GetNode(nBoneCount);
if(IsBoneInList(vecMaxBones, pMaxBone) == false)
{
// LOG.Write("\n %s (floating)", pMaxBone->GetName());
vecMaxBones.push_back(pMaxBone);
}
}
pPhyObjExport->ReleaseVertexInterface(pPhyFloatingVertex);
}
}
pPhyExport->ReleaseContextInterface(pPhyObjExport);
pPhyModifier->ReleaseInterface(I_PHYINTERFACE, pPhyExport);
return bOK;
}
void SGP_MaxInterface::GetBoneGroup( Modifier *pModifier,
int nModifierType,
INode* pNode,
Mesh* pMesh,
int nVertexId,
BoneGroup& boneGroup )
{
if( !pMesh )
{
assert( false );
return;
}
if( nVertexId >= pMesh->numVerts )
{
assert( false );
return;
}
// static mesh
if( nModifierType == MODIFIER_NONE )
{
INode* pParent = pNode->GetParentNode();
if( pParent && ( IsBone( pParent ) || IsBipedBone( pParent ) ) )
{
Influence infl;
infl.fWeight = 1.0f;
strcpy( infl.szBoneName, pParent->GetName() );
boneGroup.AddInfluence( infl );
}
}
// check for physique modifier
else if( nModifierType == MODIFIER_PHYSIQUE )
{
assert( pModifier && "get bone group error, modifier is null" );
// create a physique export interface
IPhysiqueExport *pPhysiqueExport = (IPhysiqueExport *)pModifier->GetInterface(I_PHYINTERFACE);
if(pPhysiqueExport == NULL)
{
return;
}
// create a context export interface
IPhyContextExport *pContextExport = (IPhyContextExport *)pPhysiqueExport->GetContextInterface(pNode);
if(pContextExport == NULL)
{
pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
return;
}
// set the flags in the context export interface
pContextExport->ConvertToRigid(TRUE);
pContextExport->AllowBlending(TRUE);
// get the vertex export interface
IPhyVertexExport *pVertexExport = (IPhyVertexExport *)pContextExport->GetVertexInterface(nVertexId);
if(pVertexExport == NULL)
{
pPhysiqueExport->ReleaseContextInterface(pContextExport);
pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
return;
}
// get the vertex type
int vertexType = pVertexExport->GetVertexType();
// handle the specific vertex type
if(vertexType == RIGID_TYPE)
{
// typecast to rigid vertex
IPhyRigidVertex *pTypeVertex = (IPhyRigidVertex *)pVertexExport;
Influence infl;
if( pTypeVertex->GetNode() )
{
strcpy( infl.szBoneName, pTypeVertex->GetNode()->GetName() );
infl.fWeight = 1.0f;
boneGroup.AddInfluence( infl );
}
else
return;
}
else if(vertexType == RIGID_BLENDED_TYPE)
{
// typecast to blended vertex
IPhyBlendedRigidVertex *pTypeVertex = (IPhyBlendedRigidVertex *)pVertexExport;
// loop through all influencing bones
Influence infl;
for(int nodeId = 0; nodeId < pTypeVertex->GetNumberNodes(); nodeId++)
{
strcpy( infl.szBoneName, pTypeVertex->GetNode( nodeId )->GetName() );
infl.fWeight = pTypeVertex->GetWeight( nodeId );
boneGroup.AddInfluence( infl );
}
}
// release all interfaces
pPhysiqueExport->ReleaseContextInterface(pContextExport);
pModifier->ReleaseInterface(I_PHYINTERFACE, pPhysiqueExport);
}
else if( nModifierType == MODIFIER_SKIN)
{
assert( pModifier && "get bone group error, modifier is null" );
// create a skin interface
ISkin *pSkin = (ISkin*)pModifier->GetInterface(I_SKIN);
if(pSkin == 0)
{
return;
}
// create a skin context data interface
ISkinContextData *pSkinContextData;
pSkinContextData = (ISkinContextData *)pSkin->GetContextInterface(pNode);
if(pSkinContextData == NULL)
{
pModifier->ReleaseInterface(I_SKIN, pSkin);
return;
}
// loop through all influencing bones
for(int nodeId = 0; nodeId < pSkinContextData->GetNumAssignedBones(nVertexId); nodeId++)
{
// get the bone id
int boneId = pSkinContextData->GetAssignedBone(nVertexId, nodeId);
if(boneId < 0)
continue;
INode* pBone = pSkin->GetBone( boneId );
Influence infl;
strcpy( infl.szBoneName, pBone->GetName() );
infl.fWeight = pSkinContextData->GetBoneWeight(nVertexId, nodeId);
boneGroup.AddInfluence( infl );
}
// release all interfaces
pModifier->ReleaseInterface(I_SKIN, pSkin);
}
}