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497 lines
20 KiB
C++
497 lines
20 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// A class representing a mesh
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//
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//=============================================================================
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#ifndef DMEMESH_H
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#define DMEMESH_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "movieobjects/dmeshape.h"
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#include "movieobjects/dmevertexdata.h"
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#include "materialsystem/MaterialSystemUtil.h"
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#include "mathlib/vector.h"
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#include "tier1/utllinkedlist.h"
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#include "Color.h"
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//-----------------------------------------------------------------------------
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// Forward declarations
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//-----------------------------------------------------------------------------
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class CDmElement;
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class CDmeFaceSet;
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class CDmeVertexData;
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class IMaterial;
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class IMorph;
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class IMesh;
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class Vector;
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class Vector4D;
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class Color;
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class CDmeDag;
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class CMeshBuilder;
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class CDmeCombinationOperator;
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class CDmeSingleIndexedComponent;
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class CDmeDrawSettings;
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class CDmMeshComp;
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//-----------------------------------------------------------------------------
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// Mesh weights
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//-----------------------------------------------------------------------------
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enum MeshDeltaWeightType_t
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{
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MESH_DELTA_WEIGHT_FIRST = 0,
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MESH_DELTA_WEIGHT_NORMAL = 0,
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MESH_DELTA_WEIGHT_LAGGED,
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MESH_DELTA_WEIGHT_TYPE_COUNT,
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};
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//-----------------------------------------------------------------------------
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// Mesh representation
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//-----------------------------------------------------------------------------
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class CDmeMesh : public CDmeShape
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{
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DEFINE_ELEMENT( CDmeMesh, CDmeShape );
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public:
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// resolve internal data from changed attributes
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virtual void OnAttributeChanged( CDmAttribute *pAttribute );
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void GetBoundingSphere( Vector &c, float &r, CDmeVertexData *pPassedBase, CDmeSingleIndexedComponent *pPassedSelection ) const;
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virtual void GetBoundingSphere( Vector &c, float &r ) const { return GetBoundingSphere( c, r, NULL, NULL ); }
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void GetBoundingBox( Vector &min, Vector &max, CDmeVertexData *pPassedBase /* = NULL */, CDmeSingleIndexedComponent *pPassedSelection /* = NULL */ ) const;
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virtual void GetBoundingBox( Vector &min, Vector &max ) const { return GetBoundingBox( min, max, NULL, NULL ); }
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// accessors
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int FaceSetCount() const;
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CDmeFaceSet *GetFaceSet( int nFaceSetIndex );
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const CDmeFaceSet *GetFaceSet( int nFaceSetIndex ) const;
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void AddFaceSet( CDmeFaceSet *faceSet );
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void RemoveFaceSet( int nFaceSetIndex );
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// Base states
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int BaseStateCount() const;
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CDmeVertexData *GetBaseState( int nBaseIndex ) const;
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CDmeVertexData *FindBaseState( const char *pStateName ) const;
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CDmeVertexData *FindOrCreateBaseState( const char *pStateName );
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bool DeleteBaseState( const char *pStateName );
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// Selects a particular base state to be current state
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void SetCurrentBaseState( const char *pStateName );
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CDmeVertexData *GetCurrentBaseState();
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const CDmeVertexData *GetCurrentBaseState() const;
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bool SetBindBaseState( CDmeVertexData *pBaseState );
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CDmeVertexData *GetBindBaseState();
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const CDmeVertexData *GetBindBaseState() const;
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// Draws the mesh
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void Draw( const matrix3x4_t &shapeToWorld, CDmeDrawSettings *pDrawSettings = NULL );
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// Compute triangulated indices
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void ComputeTriangulatedIndices( const CDmeVertexData *pBaseState, CDmeFaceSet *pFaceSet, int nFirstIndex, int *pIndices, int nOutCount );
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// Compute a default per-vertex tangent given normal data + uv data for all vertex data referenced by this mesh
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void ComputeDefaultTangentData( bool bSmoothTangents = false );
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// Compute a default per-vertex tangent given normal data + uv data
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void ComputeDefaultTangentData( CDmeVertexData *pVertexData, bool bSmoothTangents = false );
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// Delta states
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int DeltaStateCount() const;
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CDmeVertexDeltaData *GetDeltaState( int nDeltaIndex ) const;
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CDmeVertexDeltaData *FindDeltaState( const char *pDeltaName ) const;
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CDmeVertexDeltaData *FindOrCreateDeltaState( const char *pDeltaName );
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bool DeleteDeltaState( const char *pDeltaName );
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bool ResetDeltaState( const char *pDeltaName );
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int FindDeltaStateIndex( const char *pDeltaName ) const;
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void SetDeltaStateWeight( int nDeltaIndex, MeshDeltaWeightType_t type, float flMorphWeight );
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void SetDeltaStateWeight( int nDeltaIndex, MeshDeltaWeightType_t type, float flLeftWeight, float flRightWeight );
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CDmeVertexDeltaData *ModifyOrCreateDeltaStateFromBaseState( const char *pDeltaName, CDmeVertexData *pPassedBase = NULL, bool absolute = false );
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// Sets all of the data in the current base state to be the bind state plus the corrected delta, if delta is NULL then it's set to the bind state
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bool SetBaseStateToDelta( const CDmeVertexDeltaData *pDelta, CDmeVertexData *pPassedBase = NULL );
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// Selects the vertices from the delta that change position
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void SelectVerticesFromDelta( CDmeVertexDeltaData *pDelta, CDmeSingleIndexedComponent *pSelection );
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// Selects all the vertices in the mesh
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void SelectAllVertices( CDmeSingleIndexedComponent *pSelection, CDmeVertexData *pPassedBase = NULL );
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enum SelectHalfType_t
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{
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kLeft,
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kRight
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};
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// Selects all the vertices in the mesh
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void SelectHalfVertices( SelectHalfType_t selectHalfType, CDmeSingleIndexedComponent *pSelection, CDmeVertexData *pPassedBase = NULL );
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// Add the delta into the vertex data state weighted by the weight and masked by the weight map
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bool AddMaskedDelta(
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CDmeVertexDeltaData *pDelta,
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CDmeVertexData *pDst = NULL,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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// Interpolate between the current state and the specified delta by the specified percentage masked by the selection
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bool InterpMaskedDelta(
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CDmeVertexDeltaData *pDelta,
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CDmeVertexData *pDst = NULL,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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// Grows the selection by a specified amount
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void GrowSelection( int nSize, CDmeSingleIndexedComponent *pSelection, CDmMeshComp *pPassedMeshComp );
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// Shrinks the selection by a specified amount
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void ShrinkSelection( int nSize, CDmeSingleIndexedComponent *pSelection, CDmMeshComp *pPassedMeshComp );
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enum Falloff_t
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{
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STRAIGHT = 0,
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LINEAR = STRAIGHT,
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BELL,
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SMOOTH = BELL,
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SPIKE,
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DOME
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};
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enum Distance_t
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{
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DIST_ABSOLUTE = 0,
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DIST_RELATIVE,
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DIST_DEFAULT
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};
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CDmeSingleIndexedComponent *FeatherSelection( float falloffDistance, Falloff_t falloffType, Distance_t distanceType, CDmeSingleIndexedComponent *pSelection, CDmMeshComp *pPassedMeshComp );
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// Computes new normal deltas for all states based on position deltas
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void ComputeDeltaStateNormals();
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struct DeltaComputation_t
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{
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int m_nDeltaIndex;
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int m_nDimensionality;
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CUtlVector<int> m_DependentDeltas;
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};
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// Construct list of all n-1 -> 1 dimensional delta states that will be active when this delta state is active
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void ComputeDependentDeltaStateList( CUtlVector< DeltaComputation_t > &compList );
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// Construct list of all > n dimensional delta states that when active have the specified state as a dependent
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bool ComputeSuperiorDeltaStateList( const char *pDeltaName, CUtlVector< int > &superiorDeltaStates );
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void SetDeltaNormalDataFromActualNormals( int nDeltaIndex, const CUtlVector<int> &deltaStateList, int nNormalCount, Vector *pNormals );
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void ComputeAllCorrectedPositionsFromActualPositions();
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// Computes adds a delta to the passed data weighted by the passed weight
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template < class T_t > void AddDelta(
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const CDmeVertexDeltaData *pDelta, T_t *pFullData, int nFullData, FieldIndex_t fieldIndex, float weight = 1.0f, const CDmeSingleIndexedComponent *pMask = NULL );
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template < class T_t > void AddDelta(
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const CDmeVertexDeltaData *pDelta, T_t *pFullData, int nFullData, CDmeVertexData::StandardFields_t standardField, float weight = 1.0f, const CDmeSingleIndexedComponent *pMask = NULL );
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bool SetBaseStateToDeltas( CDmeVertexData *pPassedBase = NULL );
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template < class T_t >
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bool SetBaseDataToDeltas( CDmeVertexData *pBase, CDmeVertexData::StandardFields_t nStandardField, CDmrArrayConst< T_t > &srcData, CDmrArray< T_t > &dstData, bool bDoStereo, bool bDoLag );
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// Replace all instances of a material with a different material
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void ReplaceMaterial( const char *pOldMaterialName, const char *pNewMaterialName );
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// makes all the normals in the mesh unit length
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void NormalizeNormals();
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// Collapses redundant normals in the model
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// flNormalBlend is the maximum difference in the dot product between two normals to consider them
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// to be the same normal, a value of cos( DEG2RAD( 2.0 ) ) is the default studiomdl uses, for example
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void CollapseRedundantNormals( float flNormalBlend );
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// SWIG errors on the parsing of something in the private section of DmeMesh, it isn't exposed by SWIG anyway, so have SWIG ignore it
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#ifndef SWIG
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template < class T_t > static int GenerateCompleteDataForDelta( const CDmeVertexDeltaData *pDelta, T_t *pFullData, int nFullData, CDmeVertexData::StandardFields_t standardField );
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private:
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friend class CDmMeshComp;
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struct FaceSet_t
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{
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FaceSet_t() : m_bBuilt(false) {}
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IMesh *m_pMesh;
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bool m_bBuilt;
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};
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struct Triangle_t
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{
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int m_nIndex[3];
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Vector m_vecTangentS;
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Vector m_vecTangentT;
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};
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struct RenderVertexDelta_t
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{
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Vector m_vecDeltaPosition;
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Vector m_vecDeltaNormal;
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Vector2D m_vecDeltaUV;
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Vector4D m_vecDeltaColor;
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float m_flDeltaWrinkle;
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};
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VertexFormat_t ComputeHwMeshVertexFormat( void );
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IMorph *CreateHwMorph( IMaterial *pMTL );
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IMesh *CreateHwMesh( CDmeFaceSet *pFaceSet );
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// Draws the mesh when it uses too many bones
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void DrawDynamicMesh( CDmeFaceSet *pFaceSet, matrix3x4_t *pPoseToWorld, bool bHasActiveDeltaStates, CDmeDrawSettings *pDrawSettings = NULL );
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// Build a map from vertex index to a list of triangles that share the vert.
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void BuildTriangleMap( const CDmeVertexData *pBaseState, CDmeFaceSet* pFaceSet, CUtlVector<Triangle_t>& triangles, CUtlVector< CUtlVector<int> >* pVertToTriMap = NULL );
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// Computes tangent space data for triangles
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void ComputeTriangleTangets( const CDmeVertexData *pVertexData, CUtlVector<Triangle_t>& triangles );
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// Build a map from vertex index to a list of triangles that share the vert.
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void ComputeAverageTangent( CDmeVertexData *pVertexData, bool bSmoothTangents, CUtlVector< CUtlVector<int> >& vertToTriMap, CUtlVector<Triangle_t>& triangles );
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// Do we have active delta state data?
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bool HasActiveDeltaStates() const;
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// Adds deltas into a delta mesh
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template< class T > bool AddVertexDelta( CDmeVertexData *pBaseState, void *pVertexData, int nStride, CDmeVertexDataBase::StandardFields_t fieldId, int nIndex, bool bDoLag );
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template< class T > bool AddStereoVertexDelta( CDmeVertexData *pBaseState, void *pVertexData, int nStride, CDmeVertexDataBase::StandardFields_t fieldId, int nIndex, bool bDoLag );
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void AddTexCoordDelta( RenderVertexDelta_t *pRenderDelta, float flWeight, CDmeVertexDeltaData *pDeltaState );
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void AddColorDelta( RenderVertexDelta_t *pRenderDelta, float flWeight, CDmeVertexDeltaData *pDeltaState );
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// Builds deltas based on the current deltas, returns true if there was delta wrinkle data
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bool BuildDeltaMesh( int nVertices, RenderVertexDelta_t *pDelta );
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// Builds a map from vertex index to all triangles that use it
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void BuildVertToTriMap( const CDmeVertexData *pVertexData, CUtlVector<Triangle_t> &triangles, CUtlVector< CUtlVector<int> > &vertToTriMap );
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// Compute the dimensionality of the delta state (how many inputs affect it)
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int ComputeDeltaStateDimensionality( int nDeltaIndex );
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// Discovers the atomic controls used by the various delta states
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void BuildAtomicControlLists( int nCount, DeltaComputation_t *pInfo, CUtlVector< CUtlVector< int > > &deltaStateUsage );
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// Computes the aggregate position for all vertices after applying a set of delta states
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void AddDelta( CDmeVertexData *pBaseState, Vector *pDeltaPosition, int nDeltaStateIndex, CDmeVertexData::StandardFields_t fieldId );
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// Converts pose-space normals into deltas appropriate for correction delta states
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void ComputeCorrectedNormalsFromActualNormals( const CUtlVector<int> &deltaStateList, int nNormalCount, Vector *pNormals );
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// Copies the corrected normal data into a delta state
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void SetDeltaNormalData( int nDeltaIndex, int nNormalCount, Vector *pNormals );
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// Renders normals
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void RenderNormals( matrix3x4_t *pPoseToWorld, RenderVertexDelta_t *pDelta );
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// Writes triangulated indices for a face set into a meshbuilder
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void WriteTriangluatedIndices( const CDmeVertexData *pBaseState, CDmeFaceSet *pFaceSet, CMeshBuilder &meshBuilder );
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// Initializes the normal material
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static void InitializeNormalMaterial();
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// Sort function
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static int DeltaStateLessFunc( const void * lhs, const void * rhs );
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// Computes a list of the delta states ordered by dimensionality
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void ComputeDeltaStateComputationList( CUtlVector< DeltaComputation_t > &compList );
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// Compute the number of combinations of n items taken k at a time nCk - Probably doesn't belong here but it useful for combos
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static void Combinations( int n, int k, CUtlVector< CUtlVector< int > > &combos, int *pTmpArray = NULL, int start = 0, int currentK = 0 );
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// Splits the passed delta state name on '_' and finds all of the control Delta states which make up the name
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bool GetControlDeltaIndices( CDmeVertexDeltaData *pDeltaState, CUtlVector< int > &controlDeltaIndices ) const;
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// Splits the passed delta state name on '_' and finds all of the control Delta states which make up the name
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bool GetControlDeltaIndices( const char *pDeltaStateName, CUtlVector< int > &controlDeltaIndices ) const;
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// Builds a complete list of all of the delta states expressed as the control indices
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bool BuildCompleteDeltaStateControlList( CUtlVector< CUtlVector< int > > &deltaStateControlList ) const;
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// Given a list of control indices and a complete list of control indices for each delta state, returns the delta index or -1 if it doesn't exist
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int FindDeltaIndexFromControlIndices( const CUtlVector< int > &controlIndices, const CUtlVector< CUtlVector< int > > &controlList ) const;
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// Builds a list of all of the dependent delta states that do not already exist
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bool BuildMissingDependentDeltaList( CDmeVertexDeltaData *pDeltaState, CUtlVector< int > &controlIndices, CUtlVector< CUtlVector< int > > &dependentStates ) const;
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static void ComputeCorrectedPositionsFromActualPositions( const CUtlVector< int > &deltaStateList, int nPositionCount, Vector *pPositions );
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template < class T_t > void AddCorrectedDelta(
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CDmrArray< T_t > &baseDataArray,
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const CUtlVector< int > &baseIndices,
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const DeltaComputation_t &deltaComputation,
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const char *pFieldName,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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template < class T_t > void AddCorrectedDelta(
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CUtlVector< T_t > &baseData,
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const CUtlVector< int > &baseIndices,
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const DeltaComputation_t &deltaComputation,
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const char *pFieldName,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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// Add the delta into the vertex data state weighted by the weight and masked by the weight map
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bool AddCorrectedMaskedDelta(
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CDmeVertexDeltaData *pDelta,
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CDmeVertexData *pDst = NULL,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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template < class T_t > void AddRawDelta(
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CDmeVertexDeltaData *pDelta,
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CDmrArray< T_t > &baseDataArray,
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FieldIndex_t nDeltaFieldIndex,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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template < class T_t > void AddRawDelta(
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CDmeVertexDeltaData *pDelta,
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CUtlVector< T_t > &baseData,
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FieldIndex_t nDeltaFieldIndex,
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float weight = 1.0f,
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const CDmeSingleIndexedComponent *pMask = NULL );
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friend class CDmxEdit;
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bool RemoveBaseState( CDmeVertexData *pBase );
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CDmeVertexData *FindOrAddBaseState( CDmeVertexData *pBase );
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// CFalloff functors map [0, 1] values to [0, 1] values
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template < int T >
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class CFalloff
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{
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public:
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virtual inline float operator()( float x ) { return 1 - x; }
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};
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template<>
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class CFalloff< CDmeMesh::LINEAR >
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{
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public:
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virtual inline float operator()( float x ) { return 1 - x; }
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};
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template<>
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class CFalloff< CDmeMesh::SMOOTH >
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{
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public:
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virtual inline float operator()( float x ) {
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return ( cosf( x * M_PI ) + 1.0f ) / 2.0f;
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}
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};
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template<>
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class CFalloff< CDmeMesh::DOME >
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{
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public:
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virtual inline float operator()( float x ) {
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return ( cosf( x * M_PI / 2.0 ) );
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}
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};
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template<>
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class CFalloff< CDmeMesh::SPIKE >
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{
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public:
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virtual inline float operator()( float x ) {
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return ( 1.0f - cosf( ( 1.0f - x ) * M_PI / 2.0 ) );
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}
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};
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// Feather's the selection by a specified amount, creates a new CDmeSingleIndexedComponent or NULL if error
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template < int T >
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CDmeSingleIndexedComponent *FeatherSelection( float fFalloffDistance, Distance_t distanceType, CDmeSingleIndexedComponent *pSelection, CDmMeshComp *pPassedMeshComp );
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bool CreateDeltaFieldFromBaseField( CDmeVertexData::StandardFields_t nStandardFieldIndex, const CDmrArrayConst< float > &baseArray, const CDmrArrayConst< float > &bindArray, CDmeVertexDeltaData *pDelta );
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bool CreateDeltaFieldFromBaseField( CDmeVertexData::StandardFields_t nStandardFieldIndex, const CDmrArrayConst< Vector2D > &baseArray, const CDmrArrayConst< Vector2D > &bindArray, CDmeVertexDeltaData *pDelta );
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bool CreateDeltaFieldFromBaseField( CDmeVertexData::StandardFields_t nStandardFieldIndex, const CDmrArrayConst< Vector > &baseArray, const CDmrArrayConst< Vector > &bindArray, CDmeVertexDeltaData *pDelta );
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template< class T_t > bool InterpMaskedData(
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CDmrArray< T_t > &aData,
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const CUtlVector< T_t > &bData,
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float weight,
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const CDmeSingleIndexedComponent *pMask ) const;
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// Interpolate between the current state and the specified delta by the specified percentage masked by the selection
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bool InterpMaskedData(
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CDmeVertexData *paData,
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const CDmeVertexData *pbData,
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float weight,
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const CDmeSingleIndexedComponent *pMask ) const;
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// Find the closest vertex in the specified selection to the passed vertex in the specified base state, if the passed base state is NULL is the current base state
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int ClosestSelectedVertex( int vIndex, CDmeSingleIndexedComponent *pSelection, const CDmeVertexData *pPassedBase = NULL ) const;
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// Return the distance between the two vertices in the specified base state, if the specified base state is NULL the current state is used
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float DistanceBetween( int vIndex0, int vIndex1, const CDmeVertexData *pPassedBase = NULL ) const;
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void DrawWireframeFaceSet( CDmeFaceSet *pFaceSet, matrix3x4_t *pPoseToWorld, bool bHasActiveDeltaStates, CDmeDrawSettings *pDrawSettings );
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void ComputeNormalsFromPositions( CDmeVertexData *pBase, const Vector *pPosition, const CUtlVector<Triangle_t> &triangles, int nNormalCount, Vector *pNormals );
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CDmaElement< CDmeVertexData > m_BindBaseState;
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CDmaElement< CDmeVertexData > m_CurrentBaseState;
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CDmaElementArray< CDmeVertexData > m_BaseStates;
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CDmaElementArray< CDmeVertexDeltaData > m_DeltaStates;
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CDmaElementArray< CDmeFaceSet > m_FaceSets;
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// x is left value, y is right value. If the delta state isn't split, they are the same value
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CDmaArray<Vector2D> m_DeltaStateWeights[MESH_DELTA_WEIGHT_TYPE_COUNT];
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// Cached-off map of fields->
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CUtlVector< FaceSet_t > m_hwFaceSets;
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// Normal rendering materials
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static bool s_bNormalMaterialInitialized;
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static CMaterialReference s_NormalMaterial;
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static CMaterialReference s_NormalErrorMaterial;
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static bool s_bMaterialsInitialized;
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static CMaterialReference s_WireframeMaterial;
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static CMaterialReference s_WireframeOnShadedMaterial;
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friend class CRenderInfo;
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#endif // ndef SWIG
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};
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//-----------------------------------------------------------------------------
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// Inline methods
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//-----------------------------------------------------------------------------
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inline int CDmeMesh::BaseStateCount() const
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{
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return m_BaseStates.Count();
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}
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inline CDmeVertexData *CDmeMesh::GetBaseState( int nBaseIndex ) const
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{
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return m_BaseStates[ nBaseIndex ];
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}
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//-----------------------------------------------------------------------------
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// Utility method to compute default tangent data on all meshes in the sub-dag hierarchy
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//-----------------------------------------------------------------------------
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void ComputeDefaultTangentData( CDmeDag *pDag, bool bSmoothTangents );
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#endif // DMEMESH_H
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