/*********************************************************************************
*Function: operator=(const VMesh& fromMesh)
*Description： 重载操作符operator =
*Input: fromMesh-源网格
*Return: 拷贝后的网格
*CREATED BY: [7/30/2015 niewenchao]
**********************************************************************************/
VMesh& VMesh::operator=(const VMesh& fromMesh)
{
CopyVerts(fromMesh); //拷贝顶点
CopyFaces(fromMesh); //拷贝面片
CopyVertColors(fromMesh);
return (*this);
}
//-----------------------------------------------------------------------------
// Computes LOD vertices for a model piece.
//-----------------------------------------------------------------------------
static void UnifyModelLODs( s_model_t *pSrcModel )
{
CUtlVector<s_source_t *> lods;
int nNumLODs = g_ScriptLODs.Count();
lods.AddMultipleToTail( nNumLODs );
if( Q_stricmp( pSrcModel->name, "blank" ) == 0 )
return;
// lod source are not gauranteed to be unique
// an lod's source may be the same source at multiple lods
// and therefore shared
GetLODSources( lods, pSrcModel );
// each lod has a unique vertex mapping table
int nLodID;
int *pMeshVertIndexMaps[MAX_NUM_LODS];
for ( nLodID = 0; nLodID < MAX_NUM_LODS; nLodID++ )
{
if ( nLodID < nNumLODs && lods[nLodID] )
{
pMeshVertIndexMaps[nLodID] = new int[lods[nLodID]->numvertices];
#ifdef _DEBUG
memset( pMeshVertIndexMaps[nLodID], 0xDD, lods[nLodID]->numvertices * sizeof(int) );
#endif
}
else
{
pMeshVertIndexMaps[nLodID] = NULL;
}
}
// These hold the aggregate data for the model that grows as lods are processed
CVertexDictionary vertexDictionary;
CUtlVector<s_face_t> faces;
CUtlVector<s_mesh_t> meshes;
meshes.AddMultipleToTail( MAXSTUDIOSKINS );
Assert( meshes.Count() == MAXSTUDIOSKINS );
memset( meshes.Base(), 0, meshes.Count() * sizeof( s_mesh_t ) );
int nMeshID;
for( nMeshID = 0; nMeshID < pSrcModel->source->nummeshes; nMeshID++ )
{
s_mesh_t *pVertexDictMesh = &meshes[pSrcModel->source->meshindex[nMeshID]];
pVertexDictMesh->numvertices = 0;
pVertexDictMesh->vertexoffset = vertexDictionary.VertexCount();
pVertexDictMesh->numfaces = 0;
pVertexDictMesh->faceoffset = faces.Count();
// First build up information for LOD 0
if ( !lods[0] )
continue;
// lookup the material used by this mesh
int nMaterialID = lods[0]->meshindex[nMeshID];
s_mesh_t *pLOD0Mesh = FindMeshByMaterial( lods[0], nMaterialID );
if ( !pLOD0Mesh )
continue;
// populate with all vertices from LOD 0
int nStart = vertexDictionary.VertexCount();
CopyVerts( 0, lods[0], pLOD0Mesh, vertexDictionary, pVertexDictMesh, pMeshVertIndexMaps[0] );
vertexDictionary.SetRootVertexRange( nStart, vertexDictionary.VertexCount() );
MarkRootLODBones( vertexDictionary );
// only fix up the faces for the highest lod since the lowest ones are going
// to be reprocessed later.
CopyFaces( lods[0], pLOD0Mesh, faces, pVertexDictMesh );
// Now, for each LOD, try to build meshes using the vertices in LOD 0.
// Ideally, vertices used in an LOD would be in LOD 0 for the benefit of shared vertices.
// If we don't find vertices in LOD 0, this code will add vertices into LOD 0's list
// of vertices for the next LOD to find
for ( nLodID = 1; nLodID < nNumLODs; ++nLodID )
{
s_source_t *pCurrLOD = lods[nLodID];
if ( !pCurrLOD )
continue;
// Find the mesh that matches the material
// mesh may not be present or could be culled due to $removemesh commands
s_mesh_t *pCurrLODMesh = FindOrCullMesh( nLodID, pCurrLOD, nMaterialID );
if ( !pCurrLODMesh )
continue;
CreateLODVertsInDictionary( nLodID, lods[0], pCurrLOD, pCurrLODMesh, pVertexDictMesh, vertexDictionary, pMeshVertIndexMaps[nLodID]);
}
}
#ifdef _DEBUG
Msg( "Total vertex count: %d\n", vertexDictionary.VertexCount() );
#endif
// save the data we just built into the processed data section
// The processed data has all of the verts that are needed for all LODs.
SetProcessedWithDictionary( lods, vertexDictionary, faces, meshes, pMeshVertIndexMaps );
// PrintSourceVerts( lods[0] );
}
/*********************************************************************************
*Function: VMesh(const VMesh& fromMesh)
*Description： 拷贝构造函数
*Input: 原网格
*Return: 无
*CREATED BY: [7/30/2015 niewenchao]
**********************************************************************************/
VMesh::VMesh(const VMesh& fromMesh)
{
CopyVerts(fromMesh); //拷贝顶点
CopyVertColors(fromMesh); //拷贝顶点颜色
CopyFaces(fromMesh); //拷贝面片
}