199 lines
7.4 KiB
C++
199 lines
7.4 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Mesh Manipulation Utilities
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//
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//=============================================================================
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#ifndef DMMESHUTILS_H
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#define DMMESHUTILS_H
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#if defined( _WIN32 )
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#pragma once
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#endif
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#include "movieobjects/dmevertexdata.h"
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#include "tier1/utlstring.h"
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#include "tier1/UtlStringMap.h"
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#include "tier1/utlvector.h"
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class CDmeMesh;
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class CDmMeshComp::CEdge;
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//-----------------------------------------------------------------------------
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// Mesh Utility function class (more like a namespace)
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//-----------------------------------------------------------------------------
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class CDmMeshUtils
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{
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public:
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static bool RemoveLargeAxisAlignedPlanarFaces( CDmeMesh *pMesh );
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static bool RemoveFacesWithMaterial( CDmeMesh *pMesh, const char *pMaterialName );
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static bool RemoveFacesWithMoreThanNVerts( CDmeMesh *pMesh, const int nVertexCount );
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enum Axis_t
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{
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kXAxis,
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kYAxis,
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kZAxis
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};
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static bool Mirror( CDmeMesh *pMesh, int axis = kXAxis );
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static bool RemapMaterial( CDmeMesh *pMesh, const CUtlString &src, const CUtlString &dst );
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static bool RemapMaterial( CDmeMesh *pMesh, const int nMaterialIndex, const CUtlString &dst );
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// Merge the specified mesh onto the first mesh under pRoot that fits it
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static bool Merge( CDmeMesh *pSrcMesh, CDmElement *pRoot );
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static bool Merge( CDmeMesh *pSrcMesh, CDmeMesh *pDstMesh, int nSkinningJointIndex );
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static bool CreateDeltasFromPresets( CDmeMesh *pMesh, CDmeVertexData *pPassedDst, const CUtlStringMap< CUtlString > &presetMap, bool bPurge, const CUtlVector< CUtlString > *pPurgeAllButThese = NULL );
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static bool PurgeUnusedDeltas( CDmeMesh *pMesh );
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enum WrinkleOp
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{
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kReplace,
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kAdd
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};
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static bool CreateWrinkleDeltaFromBaseState( CDmeVertexDeltaData *pDelta, float flScale = 1.0f, WrinkleOp wrinkleOp = kReplace, CDmeMesh *pMesh = NULL, CDmeVertexData *pBind = NULL, CDmeVertexData *pCurrent = NULL );
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static int FindMergeSocket(
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const CUtlVector< CUtlVector< CDmMeshComp::CEdge * > > &srcBorderEdgesList,
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CDmeMesh *pDstMesh );
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static bool Merge( CDmMeshComp &srcComp, const CUtlVector< CDmMeshComp::CEdge * > &edgeList, CDmeMesh *pDstMesh );
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protected:
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static const int *BuildDataMirrorMap( CDmeVertexData *pBase, int axis, CDmeVertexData::StandardFields_t standardField, CUtlVector< int > &dataMirrorMap );
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static bool MirrorVertices( CDmeMesh *pMesh, CDmeVertexData *pBase, int axis, CUtlVector< int > &mirrorMap );
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static bool MirrorVertices( CDmeVertexData *pBase, int axis, int nOldVertexCount, int nMirrorCount, const CUtlVector< int > &mirrorMap, const CUtlVector< int > &posMirrorMap, const CUtlVector< int > &normalMirrorMap, const CUtlVector< int > &uvMirrorMap );
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static void MirrorVertices( CDmeVertexData *pBase, FieldIndex_t fieldIndex, int nOldVertexCount, int nMirrorCount, const CUtlVector< int > &baseIndices, const CUtlVector< int > &mirrorMap );
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static bool MirrorDelta( CDmeVertexDeltaData *pDelta, int axis, const CUtlVector< int > &posMirrorMap, const CUtlVector< int > &normalMirrorMap, const CUtlVector< int > &uvMirrorMap );
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static bool PurgeUnusedData( CDmeMesh *pMesh );
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static void CreateDeltasFromPresetGroup( CDmePresetGroup *pPresetGroup, CDmeCombinationOperator * pComboOp, const CUtlVector< CUtlString > * pPurgeAllButThese, CDmeMesh * pMesh, CDmeVertexData * pDst, CUtlStringMap< CUtlString > &conflictingNames, CUtlStringMap< CDmePreset * > &presetMap );
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static void PurgeUnreferencedDeltas( CDmeMesh *pMesh, CUtlStringMap< CDmePreset * > &presetMap, const CUtlVector< CUtlString > *pPurgeAllButThese, CDmeCombinationOperator *pComboOp );
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};
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//-----------------------------------------------------------------------------
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// Iterate over all of the faces in a mesh. Use it like this:
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//
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// for ( CDmMeshFaceIt fIt( pMesh ); !fIt.IsDone(); fIt.Next() )
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// {
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// }
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//-----------------------------------------------------------------------------
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class CDmMeshFaceIt
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{
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public:
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// Constructs a new face iterator for the specified mesh
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CDmMeshFaceIt( const CDmeMesh *pMesh, const CDmeVertexData *pVertexData = NULL );
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// Resets the iterator to the start of the specified mesh or for another iteration of the
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// current mesh if the specified mesh is NULL
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bool Reset( const CDmeMesh *pMesh = NULL, const CDmeVertexData *pVertexData = NULL );
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// Returns the total number of faces in the mesh
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int Count() const;
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// The number of vertices in the face
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int VertexCount() const;
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// Is the iterator at the end of the mesh?
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bool IsDone() const;
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// Move the iterator to the next face
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bool Next();
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// The face index of the current face in the range [ 0, Count() ]
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int Index() const;
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// Returns opposite sense of IsDone(), i.e. !IsDone() so true if iterator still has stuff to do
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operator bool() const { return !IsDone(); }
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// Prefix ++ which just calls Next() for syntax sugar
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CDmMeshFaceIt &operator ++() { Next(); return *this; }
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// Postfix ++ which just calls Next() for syntax sugar
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CDmMeshFaceIt operator ++( int ) { const CDmMeshFaceIt thisCopy( *this ); ++( *this ); return thisCopy; }
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// Gets the vertex indices for the vertices of this face
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bool GetVertexIndices( int *pIndices, int nIndices ) const;
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// Gets the vertex indices for the vertices of this face
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bool GetVertexIndices( CUtlVector< int > &vertexIndices ) const;
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// Gets the mesh relative vertex index given the face relative vertex index
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int GetVertexIndex( int nFaceRelativeVertexIndex ) const;
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// Gets the specified vertex data for the vertices of this face (if it exists) and the type matches
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template < class T_t >
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bool GetVertexData(
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CUtlVector< T_t > &vertexData,
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CDmeVertexDataBase::StandardFields_t nStandardField,
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CDmeVertexData *pPassedBase = NULL ) const;
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protected:
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bool SetFaceSet();
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const CDmeMesh *m_pMesh; // Current Mesh
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const CDmeVertexData *m_pVertexData; // Current Vertex Data
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int m_nFaceSetCount; // Number of face sets in current mesh: m_pMesh->FaceSetCount();
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int m_nFaceSetIndex; // Index of current face set: [ 0, m_nFaceSetCount ]
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const CDmeFaceSet *m_pFaceSet; // Current face set: m_pMesh->GetFaceSet( m_nFaceSetIndex )
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int m_nFaceSetIndexCount; // Number of indices in current face set: m_pFaceSet->NumIndices();
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int m_nFaceSetIndexIndex; // Index of current face set's indices: [ 0, m_nFaceSetIndexCount ]
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int m_nFaceCount; // Number of faces in current mesh
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int m_nFaceIndex; // The current face in the iteration [ 0, m_nFaceCount ]
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};
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//-----------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------
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template < class T_t >
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inline bool CDmMeshFaceIt::GetVertexData(
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CUtlVector< T_t > &vertexData,
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CDmeVertexDataBase::StandardFields_t nStandardField,
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CDmeVertexData *pPassedBase /* = NULL */ ) const
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{
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vertexData.RemoveAll();
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if ( IsDone() )
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return false;
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CDmeVertexData *pBase = pPassedBase ? pPassedBase : m_pMesh->GetCurrentBaseState();
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if ( !pBase )
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return false;
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const FieldIndex_t nFieldIndex = pBase->FindFieldIndex( nStandardField );
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if ( nFieldIndex < 0 )
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return false;
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CDmAttribute *pDataAttr = pBase->GetVertexData( nFieldIndex );
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if ( pDataAttr->GetType() != CDmAttributeInfo< CUtlVector< T_t > >().AttributeType() )
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return false;
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const CDmrArrayConst< T_t > data( pDataAttr );
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const CUtlVector< int > &indices( pBase->GetVertexIndexData( nFieldIndex ) );
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}
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#endif // DMMESHUTILS_H
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