int CMaxMesh::GetSubmeshMapCount(int submeshId)
{
// check if the submesh id is valid
if((submeshId < 0) || (submeshId >= (int)m_vectorStdMat.size()))
{
theExporter.SetLastError("Invalid handle.", __FILE__, __LINE__);
return -1;
}
// get the material of the submesh
StdMat *pStdMat;
pStdMat = m_vectorStdMat[submeshId];
// count all the mapping channels in this material
int mapCount;
mapCount = 0;
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)))
{
// check if we have a valid texture coordinate
if((m_pIMesh->mapSupport(pTexMap->GetMapChannel())) || (m_pIMesh->numTVerts > 0))
{
mapCount++;
}
}
}
return mapCount;
}
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;
}
//=================================================================
// Methods for DumpModelTEP
//
int DumpModelTEP::callback(INode *pnode)
{
Object* pobj;
int fHasMat = TRUE;
// clear physique export parameters
m_mcExport = NULL;
m_phyExport = NULL;
m_phyMod = NULL;
ASSERT_MBOX(!(pnode)->IsRootNode(), "Encountered a root node!");
if (::FNodeMarkedToSkip(pnode))
return TREE_CONTINUE;
int iNode = ::GetIndexOfINode(pnode);
TSTR strNodeName(pnode->GetName());
// The Footsteps node apparently MUST have a dummy mesh attached! Ignore it explicitly.
if (FStrEq((char*)strNodeName, "Bip01 Footsteps"))
return TREE_CONTINUE;
// Helper nodes don't have meshes
pobj = pnode->GetObjectRef();
if (pobj->SuperClassID() == HELPER_CLASS_ID)
return TREE_CONTINUE;
// The model's root is a child of the real "scene root"
INode *pnodeParent = pnode->GetParentNode();
BOOL fNodeIsRoot = pnodeParent->IsRootNode( );
// Get node's material: should be a multi/sub (if it has a material at all)
Mtl *pmtlNode = pnode->GetMtl();
if (pmtlNode == NULL)
{
return TREE_CONTINUE;
fHasMat = FALSE;
}
else if (!(pmtlNode->ClassID() == Class_ID(MULTI_CLASS_ID, 0) && pmtlNode->IsMultiMtl()))
{
// sprintf(st_szDBG, "ERROR--Material on node %s isn't a Multi/Sub-Object", (char*)strNodeName);
// ASSERT_AND_ABORT(FALSE, st_szDBG);
fHasMat = FALSE;
}
// Get Node's object, convert to a triangle-mesh object, so I can access the Faces
ObjectState os = pnode->EvalWorldState(m_tvToDump);
pobj = os.obj;
TriObject *ptriobj;
BOOL fConvertedToTriObject =
pobj->CanConvertToType(triObjectClassID) &&
(ptriobj = (TriObject*)pobj->ConvertToType(m_tvToDump, triObjectClassID)) != NULL;
if (!fConvertedToTriObject)
return TREE_CONTINUE;
Mesh *pmesh = &ptriobj->mesh;
// Shouldn't have gotten this far if it's a helper object
if (pobj->SuperClassID() == HELPER_CLASS_ID)
{
sprintf(st_szDBG, "ERROR--Helper node %s has an attached mesh, and it shouldn't.", (char*)strNodeName);
ASSERT_AND_ABORT(FALSE, st_szDBG);
}
// Ensure that the vertex normals are up-to-date
pmesh->buildNormals();
// We want the vertex coordinates in World-space, not object-space
Matrix3 mat3ObjectTM = pnode->GetObjectTM(m_tvToDump);
// initialize physique export parameters
m_phyMod = FindPhysiqueModifier(pnode);
if (m_phyMod)
{
// Physique Modifier exists for given Node
m_phyExport = (IPhysiqueExport *)m_phyMod->GetInterface(I_PHYINTERFACE);
if (m_phyExport)
{
// create a ModContext Export Interface for the specific node of the Physique Modifier
m_mcExport = (IPhyContextExport *)m_phyExport->GetContextInterface(pnode);
if (m_mcExport)
{
// convert all vertices to Rigid
m_mcExport->ConvertToRigid(TRUE);
}
}
}
// Dump the triangle face info
int cFaces = pmesh->getNumFaces();
for (int iFace = 0; iFace < cFaces; iFace++)
{
Face* pface = &pmesh->faces[iFace];
TVFace* ptvface = &pmesh->tvFace[iFace];
DWORD smGroupFace = pface->getSmGroup();
// Get face's 3 indexes into the Mesh's vertex array(s).
DWORD iVertex0 = pface->getVert(0);
DWORD iVertex1 = pface->getVert(1);
DWORD iVertex2 = pface->getVert(2);
ASSERT_AND_ABORT((int)iVertex0 < pmesh->getNumVerts(), "Bogus Vertex 0 index");
ASSERT_AND_ABORT((int)iVertex1 < pmesh->getNumVerts(), "Bogus Vertex 1 index");
ASSERT_AND_ABORT((int)iVertex2 < pmesh->getNumVerts(), "Bogus Vertex 2 index");
// Get the 3 Vertex's for this face
Point3 pt3Vertex0 = pmesh->getVert(iVertex0);
Point3 pt3Vertex1 = pmesh->getVert(iVertex1);
Point3 pt3Vertex2 = pmesh->getVert(iVertex2);
// Get the 3 RVertex's for this face
// NOTE: I'm using getRVertPtr instead of getRVert to work around a 3DSMax bug
RVertex *prvertex0 = pmesh->getRVertPtr(iVertex0);
RVertex *prvertex1 = pmesh->getRVertPtr(iVertex1);
RVertex *prvertex2 = pmesh->getRVertPtr(iVertex2);
// Find appropriate normals for each RVertex
// A vertex can be part of multiple faces, so the "smoothing group"
// is used to locate the normal for this face's use of the vertex.
Point3 pt3Vertex0Normal;
Point3 pt3Vertex1Normal;
Point3 pt3Vertex2Normal;
if (smGroupFace)
{
pt3Vertex0Normal = Pt3GetRVertexNormal(prvertex0, smGroupFace);
pt3Vertex1Normal = Pt3GetRVertexNormal(prvertex1, smGroupFace);
pt3Vertex2Normal = Pt3GetRVertexNormal(prvertex2, smGroupFace);
}
else
{
pt3Vertex0Normal = pmesh->getFaceNormal( iFace );
pt3Vertex1Normal = pmesh->getFaceNormal( iFace );
pt3Vertex2Normal = pmesh->getFaceNormal( iFace );
}
ASSERT_AND_ABORT( Length( pt3Vertex0Normal ) <= 1.1, "bogus orig normal 0" );
ASSERT_AND_ABORT( Length( pt3Vertex1Normal ) <= 1.1, "bogus orig normal 1" );
ASSERT_AND_ABORT( Length( pt3Vertex2Normal ) <= 1.1, "bogus orig normal 2" );
// Get Face's sub-material from node's material, to get the bitmap name.
// And no, there isn't a simpler way to get the bitmap name, you have to
// dig down through all these levels.
TCHAR szBitmapName[256] = "null.bmp";
if (fHasMat)
{
MtlID mtlidFace = pface->getMatID();
if (mtlidFace >= pmtlNode->NumSubMtls())
{
sprintf(st_szDBG, "ERROR--Bogus sub-material index %d in node %s; highest valid index is %d",
mtlidFace, (char*)strNodeName, pmtlNode->NumSubMtls()-1);
// ASSERT_AND_ABORT(FALSE, st_szDBG);
mtlidFace = 0;
}
Mtl *pmtlFace = pmtlNode->GetSubMtl(mtlidFace);
ASSERT_AND_ABORT(pmtlFace != NULL, "NULL Sub-material returned");
if ((pmtlFace->ClassID() == Class_ID(MULTI_CLASS_ID, 0) && pmtlFace->IsMultiMtl()))
{
// it's a sub-sub material. Gads.
pmtlFace = pmtlFace->GetSubMtl(mtlidFace);
ASSERT_AND_ABORT(pmtlFace != NULL, "NULL Sub-material returned");
}
if (!(pmtlFace->ClassID() == Class_ID(DMTL_CLASS_ID, 0)))
{
sprintf(st_szDBG,
"ERROR--Sub-material with index %d (used in node %s) isn't a 'default/standard' material [%x].",
mtlidFace, (char*)strNodeName, pmtlFace->ClassID());
ASSERT_AND_ABORT(FALSE, st_szDBG);
}
StdMat *pstdmtlFace = (StdMat*)pmtlFace;
Texmap *ptexmap = pstdmtlFace->GetSubTexmap(ID_DI);
// ASSERT_AND_ABORT(ptexmap != NULL, "NULL diffuse texture")
if (ptexmap != NULL)
{
if (!(ptexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0)))
{
sprintf(st_szDBG,
"ERROR--Sub-material with index %d (used in node %s) doesn't have a bitmap as its diffuse texture.",
mtlidFace, (char*)strNodeName);
ASSERT_AND_ABORT(FALSE, st_szDBG);
}
BitmapTex *pbmptex = (BitmapTex*)ptexmap;
strcpy(szBitmapName, pbmptex->GetMapName());
TSTR strPath, strFile;
SplitPathFile(TSTR(szBitmapName), &strPath, &strFile);
strcpy(szBitmapName,strFile);
}
}
UVVert UVvertex0( 0, 0, 0 );
UVVert UVvertex1( 1, 0, 0 );
UVVert UVvertex2( 0, 1, 0 );
// All faces must have textures assigned to them
if (pface->flags & HAS_TVERTS)
{
// Get TVface's 3 indexes into the Mesh's TVertex array(s).
DWORD iTVertex0 = ptvface->getTVert(0);
DWORD iTVertex1 = ptvface->getTVert(1);
DWORD iTVertex2 = ptvface->getTVert(2);
ASSERT_AND_ABORT((int)iTVertex0 < pmesh->getNumTVerts(), "Bogus TVertex 0 index");
ASSERT_AND_ABORT((int)iTVertex1 < pmesh->getNumTVerts(), "Bogus TVertex 1 index");
ASSERT_AND_ABORT((int)iTVertex2 < pmesh->getNumTVerts(), "Bogus TVertex 2 index");
// Get the 3 TVertex's for this TVFace
// NOTE: I'm using getRVertPtr instead of getRVert to work around a 3DSMax bug
UVvertex0 = pmesh->getTVert(iTVertex0);
UVvertex1 = pmesh->getTVert(iTVertex1);
UVvertex2 = pmesh->getTVert(iTVertex2);
}
else
{
//sprintf(st_szDBG, "ERROR--Node %s has a textureless face. All faces must have an applied texture.", (char*)strNodeName);
//ASSERT_AND_ABORT(FALSE, st_szDBG);
}
/*
const char *szExpectedExtension = ".bmp";
if (stricmp(szBitmapName+strlen(szBitmapName)-strlen(szExpectedExtension), szExpectedExtension) != 0)
{
sprintf(st_szDBG, "Node %s uses %s, which is not a %s file", (char*)strNodeName, szBitmapName, szExpectedExtension);
ASSERT_AND_ABORT(FALSE, st_szDBG);
}
*/
// Determine owning bones for the vertices.
int iNodeV0, iNodeV1, iNodeV2;
if (m_mcExport)
{
// The Physique add-in allows vertices to be assigned to bones arbitrarily
iNodeV0 = InodeOfPhyVectex( iVertex0 );
iNodeV1 = InodeOfPhyVectex( iVertex1 );
iNodeV2 = InodeOfPhyVectex( iVertex2 );
}
else
{
// Simple 3dsMax model: the vertices are owned by the object, and hence the node
iNodeV0 = iNode;
iNodeV1 = iNode;
iNodeV2 = iNode;
}
// Rotate the face vertices out of object-space, and into world-space space
Point3 v0 = pt3Vertex0 * mat3ObjectTM;
Point3 v1 = pt3Vertex1 * mat3ObjectTM;
Point3 v2 = pt3Vertex2 * mat3ObjectTM;
Matrix3 mat3ObjectNTM = mat3ObjectTM;
mat3ObjectNTM.NoScale( );
ASSERT_AND_ABORT( Length( pt3Vertex0Normal ) <= 1.1, "bogus pre normal 0" );
pt3Vertex0Normal = VectorTransform(mat3ObjectNTM, pt3Vertex0Normal);
ASSERT_AND_ABORT( Length( pt3Vertex0Normal ) <= 1.1, "bogus post normal 0" );
ASSERT_AND_ABORT( Length( pt3Vertex1Normal ) <= 1.1, "bogus pre normal 1" );
pt3Vertex1Normal = VectorTransform(mat3ObjectNTM, pt3Vertex1Normal);
ASSERT_AND_ABORT( Length( pt3Vertex1Normal ) <= 1.1, "bogus post normal 1" );
ASSERT_AND_ABORT( Length( pt3Vertex2Normal ) <= 1.1, "bogus pre normal 2" );
pt3Vertex2Normal = VectorTransform(mat3ObjectNTM, pt3Vertex2Normal);
ASSERT_AND_ABORT( Length( pt3Vertex2Normal ) <= 1.1, "bogus post normal 2" );
// Finally dump the bitmap name and 3 lines of face info
fprintf(m_pfile, "%s\n", szBitmapName);
fprintf(m_pfile, "%3d %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f\n",
iNodeV0, v0.x, v0.y, v0.z,
pt3Vertex0Normal.x, pt3Vertex0Normal.y, pt3Vertex0Normal.z,
UVvertex0.x, UVvertex0.y);
fprintf(m_pfile, "%3d %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f\n",
iNodeV1, v1.x, v1.y, v1.z,
pt3Vertex1Normal.x, pt3Vertex1Normal.y, pt3Vertex1Normal.z,
UVvertex1.x, UVvertex1.y);
fprintf(m_pfile, "%3d %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f\n",
iNodeV2, v2.x, v2.y, v2.z,
pt3Vertex2Normal.x, pt3Vertex2Normal.y, pt3Vertex2Normal.z,
UVvertex2.x, UVvertex2.y);
}
cleanup( );
return TREE_CONTINUE;
}