1HEADmaster

7 files changed, 1279 insertions, 0 deletions

diff --git a/utils/vtaexp/smexprc.h b/utils/vtaexp/smexprc.h
new file mode 100644
index 0000000..5a78a64
--- /dev/null
+++ b/utils/vtaexp/smexprc.h
@@ -0,0 +1,22 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+//{{NO_DEPENDENCIES}}
+// Microsoft Developer Studio generated include file.
+// Used by vtaexp.rc
+//
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1006
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/utils/vtaexp/vtadefs.h b/utils/vtaexp/vtadefs.h
new file mode 100644
index 0000000..098110e
--- /dev/null
+++ b/utils/vtaexp/vtadefs.h
@@ -0,0 +1,172 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+
+//===================================================================
+// Useful macros
+//
+#define CONSTRUCTOR
+#define DESTRUCTOR
+
+#define EXPORT_THIS		__declspec(dllexport)
+
+#define DEFAULT_EXT		_T("vta")
+
+#define FStrEq(sz1, sz2) (strcmp((sz1), (sz2)) == 0)
+
+
+//===================================================================
+// Class that implements the scene-export.
+//
+class VtaExportClass : public SceneExport
+{
+	friend BOOL CALLBACK ExportOptionsDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
+	friend class DumpModelTEP;
+	friend class DumpDeformsTEP;
+
+public:
+	CONSTRUCTOR				VtaExportClass	(void);
+	DESTRUCTOR				~VtaExportClass	(void);
+
+	// Required by classes derived from SceneExport
+	virtual int				ExtCount		(void)		{ return 1;						}
+	virtual const TCHAR*	Ext				(int i)		{ return DEFAULT_EXT;			}
+	virtual const TCHAR*	LongDesc		(void)		{ return _T("Valve Skeletal Model Exporter for 3D Studio Max");	}
+	virtual const TCHAR*	ShortDesc		(void)		{ return _T("Valve VTA");			}
+	virtual const TCHAR*	AuthorName		(void)		{ return _T("Valve, LLC");			}
+	virtual const TCHAR*	CopyrightMessage(void)		{ return _T("Copyright (c) 1998, Valve LLC");			}
+	virtual const TCHAR*	OtherMessage1	(void)		{ return _T("");				}
+	virtual const TCHAR*	OtherMessage2	(void)		{ return _T("");				}
+	virtual unsigned int	Version			(void)		{ return 100;					}
+	virtual void			ShowAbout		(HWND hWnd)	{ return;						}
+	// virtual int				DoExport		(const TCHAR *name, ExpInterface *ei, Interface *i);
+	virtual int		DoExport(const TCHAR *name,ExpInterface *ei,Interface *i, BOOL suppressPrompts=FALSE,DWORD options=0); // Export	file
+
+	// Integer constants for this class
+	enum
+		{
+		MAX_NAME_CHARS			= 70,
+		UNDESIRABLE_NODE_MARKER	= -7777
+		};
+
+	// For keeping info about each (non-ignored) 3dsMax node in the tree
+	typedef struct
+	{
+		char		szNodeName[MAX_NAME_CHARS];	// usefull for lookups
+		Matrix3		mat3NodeTM;					// node's transformation matrix (at time zero)
+		Matrix3		mat3ObjectTM;				// object-offset transformation matrix (at time zero)
+		int			imaxnodeParent;				// cached index of parent node
+		float		xRotFirstFrame;				// 1st frame's X rotation
+		float		yRotFirstFrame;				// 1st frame's Y rotation
+		float		zRotFirstFrame;				// 1st frame's Z rotation
+	} MaxNode;
+	MaxNode		*m_rgmaxnode;		// array of nodes
+	long		m_imaxnodeMac;		// # of nodes
+
+	// Animation metrics (gleaned from 3dsMax and cached for convenience)
+	Interval	m_intervalOfAnimation;
+	TimeValue	m_tvStart;
+	TimeValue	m_tvEnd;
+	int			m_tpf;		// ticks-per-frame
+
+private:
+	BOOL					CollectNodes	(ExpInterface *expiface);
+	BOOL					DumpBones		(FILE *pFile, ExpInterface *pexpiface);
+	BOOL					DumpRotations	(FILE *pFile, ExpInterface *pexpiface);
+	BOOL					DumpModel		(FILE *pFile, ExpInterface *pexpiface);
+	BOOL					DumpDeforms		(FILE *pFile, ExpInterface *pexpiface);
+};
+
+
+//===================================================================
+// Basically just a ClassFactory for communicating with 3DSMAX.
+//
+class VtaExportClassDesc : public ClassDesc
+{
+public:
+	int				IsPublic		(void)					{ return TRUE;								}
+	void *			Create			(BOOL loading=FALSE)	{ return new VtaExportClass;				}
+	const TCHAR *	ClassName		(void)					{ return _T("VtaExport");					}
+	SClass_ID 		SuperClassID	(void)					{ return SCENE_EXPORT_CLASS_ID;				}
+	Class_ID 		ClassID			(void)					{ return Class_ID(0x5616745e, 0x65643ba5);	}
+	const TCHAR *	Category		(void)					{ return _T("");							}
+};
+
+
+//===================================================================
+// Tree Enumeration Callback
+//		Just counts the nodes in the node tree
+//
+class CountNodesTEP : public ITreeEnumProc
+{
+public:
+	virtual int				callback(INode *node);
+	int						m_cNodes;		// running count of nodes
+};
+
+
+//===================================================================
+// Tree Enumeration Callback
+//		Collects the nodes in the tree into the global array
+//
+class CollectNodesTEP : public ITreeEnumProc
+{
+public:
+	virtual int				callback(INode *node);
+	VtaExportClass			*m_phec;
+};
+
+
+//===================================================================
+// Tree Enumeration Callback
+//		Dumps the bone offsets to a file.
+//
+class DumpNodesTEP : public ITreeEnumProc
+{
+public:
+	virtual int				callback(INode *node);
+	FILE					*m_pfile;		// write to this file
+	VtaExportClass			*m_phec;
+};
+
+
+//===================================================================
+// Tree Enumeration Callback
+//		Dumps the per-frame bone rotations to a file.
+//
+class DumpFrameRotationsTEP : public ITreeEnumProc
+{
+public:
+	virtual int				callback(INode *node);
+	void					cleanup(void);
+	FILE					*m_pfile;		// write to this file
+	TimeValue				m_tvToDump;		// dump snapshot at this frame time
+	VtaExportClass			*m_phec;
+};
+
+
+//===================================================================
+// Tree Enumeration Callback
+//		Dumps the triangle meshes to a file.
+//
+class DumpModelTEP : public ITreeEnumProc
+{
+public:
+	~DumpModelTEP();
+	virtual int				callback(INode *node);
+	FILE					*m_pfile;		// write to this file
+	TimeValue				m_tvBase;		// reference dump snapshot at this frame time
+	TimeValue				m_tvToDump;		// delta dump snapshot at this frame time
+	VtaExportClass			*m_phec;
+
+	int						m_baseVertCount;
+	Point3					*m_baseVert;
+private:
+	// int						InodeOfPhyVectex( int iVertex0 );
+	Point3					Pt3GetRVertexNormal(RVertex *prvertex, DWORD smGroupFace);
+};
+
diff --git a/utils/vtaexp/vtaexp.cpp b/utils/vtaexp/vtaexp.cpp
new file mode 100644
index 0000000..0cc7002
--- /dev/null
+++ b/utils/vtaexp/vtaexp.cpp
@@ -0,0 +1,762 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+
+#include "MAX.H"
+#include "DECOMP.H"
+#include "STDMAT.H"
+#include "ANIMTBL.H"
+#include "istdplug.h"
+#include "phyexp.h"
+#include "vtaexprc.h"
+#include "vtadefs.h"
+
+
+
+//===================================================================
+// Prototype declarations
+//
+int GetIndexOfINode(INode *pnode,BOOL fAssertPropExists = TRUE);
+void SetIndexOfINode(INode *pnode, int inode);
+BOOL FUndesirableNode(INode *pnode);
+BOOL FNodeMarkedToSkip(INode *pnode);
+float FlReduceRotation(float fl);
+
+
+//===================================================================
+// Global variable definitions
+//
+
+// Save for use with dialogs
+static HINSTANCE hInstance;
+
+// We just need one of these to hand off to 3DSMAX.
+static VtaExportClassDesc VtaExportCD;
+
+// For OutputDebugString and misc sprintf's
+static char st_szDBG[300];
+
+// INode mapping table
+static int g_inmMac = 0;
+
+//===================================================================
+// Utility functions
+//
+
+static int AssertFailedFunc(char *sz)
+{
+	MessageBox(GetActiveWindow(), sz, "Assert failure", MB_OK);
+	int Set_Your_Breakpoint_Here = 1;
+	return 1;
+}
+#define ASSERT_MBOX(f, sz) ((f) ? 1 : AssertFailedFunc(sz))
+
+
+//===================================================================
+// Required plug-in export functions
+//
+BOOL WINAPI DllMain( HINSTANCE hinstDLL, ULONG fdwReason, LPVOID lpvReserved) 
+{	
+	static int fFirstTimeHere = TRUE;
+	if (fFirstTimeHere)
+	{
+		fFirstTimeHere = FALSE;
+		hInstance = hinstDLL;
+	}
+	return TRUE;
+}
+
+	
+EXPORT_THIS int LibNumberClasses(void)
+{
+	return 1;
+}
+
+	
+EXPORT_THIS ClassDesc *LibClassDesc(int iWhichClass)
+{
+	switch(iWhichClass)
+	{
+		case 0: return &VtaExportCD;
+		default: return 0;
+	}
+}
+
+	
+EXPORT_THIS const TCHAR *LibDescription()
+{
+	return _T("Valve VTA Plug-in.");
+}
+
+	
+EXPORT_THIS ULONG LibVersion()
+{
+	return VERSION_3DSMAX;
+}
+
+
+//=====================================================================
+// Methods for VtaExportClass
+//
+
+CONSTRUCTOR VtaExportClass::VtaExportClass(void)
+{
+	m_rgmaxnode		= NULL;
+}
+
+
+DESTRUCTOR VtaExportClass::~VtaExportClass(void)
+{
+	if (m_rgmaxnode)
+		delete[] m_rgmaxnode;
+}
+
+
+int VtaExportClass::DoExport(const TCHAR *name,ExpInterface *ei,Interface *i, BOOL suppressPrompts, DWORD options) 
+{
+	ExpInterface	*pexpiface = ei;	// Hungarian
+	Interface		*piface = i;		// Hungarian
+	
+	// Reset the name-map property manager
+	g_inmMac = 0;
+
+	// Break up filename, re-assemble longer versions
+	TSTR strPath, strFile, strExt;
+	TCHAR szFile[MAX_PATH];
+	SplitFilename(TSTR(name), &strPath, &strFile, &strExt);
+		sprintf(szFile,  "%s\\%s.%s",  (char*)strPath, (char*)strFile, DEFAULT_EXT);
+
+	FILE *pFile;
+	if ((pFile = fopen(szFile, "w")) == NULL)
+		return FALSE/*failure*/;
+
+	fprintf( pFile, "version %d\n", 1 );
+
+	// Get animation metrics
+	m_intervalOfAnimation = piface->GetAnimRange();
+	m_tvStart = m_intervalOfAnimation.Start();
+	m_tvEnd = m_intervalOfAnimation.End();
+	m_tpf = ::GetTicksPerFrame();
+
+	// Count nodes, label them, collect into array
+	if (!CollectNodes(pexpiface))
+		return 0;	/*fail*/
+	
+	// Output nodes
+	if (!DumpBones(pFile, pexpiface))
+	{
+		fclose( pFile );
+		return 0;	/*fail*/
+	}
+
+	// Output bone rotations, for each frame. Do only first frame if this is the reference frame MAX file
+	DumpRotations(pFile, pexpiface);
+
+	// Output triangle meshes (first frame/all frames), if this is the reference frame MAX file
+	DumpModel(pFile, pexpiface);
+
+	// Tell user that exporting is finished (it can take a while with no feedback)
+	char szExportComplete[300];
+	sprintf(szExportComplete, "Exported %s.", szFile);
+	MessageBox(GetActiveWindow(), szExportComplete, "Status", MB_OK);
+
+	fclose( pFile );
+
+	return 1/*success*/;
+}
+	
+	
+BOOL VtaExportClass::CollectNodes( ExpInterface *pexpiface)
+{
+	// Count total nodes in the model, so I can alloc array
+	// Also "brands" each node with node index, or with "skip me" marker.
+	CountNodesTEP procCountNodes;
+	procCountNodes.m_cNodes = 0;
+	(void) pexpiface->theScene->EnumTree(&procCountNodes);
+	ASSERT_MBOX(procCountNodes.m_cNodes > 0, "No nodes!");
+
+	// Alloc and fill array
+	m_imaxnodeMac = procCountNodes.m_cNodes;
+	m_rgmaxnode = new MaxNode[m_imaxnodeMac];
+	ASSERT_MBOX(m_rgmaxnode != NULL, "new failed");
+
+
+	CollectNodesTEP procCollectNodes;
+	procCollectNodes.m_phec = this;
+	(void) pexpiface->theScene->EnumTree(&procCollectNodes);
+	
+	return TRUE;
+}
+
+
+BOOL VtaExportClass::DumpBones(FILE *pFile, ExpInterface *pexpiface)
+{
+	// Dump bone names
+	DumpNodesTEP procDumpNodes;
+	procDumpNodes.m_pfile = pFile;
+	procDumpNodes.m_phec = this;
+	fprintf(pFile, "nodes\n" );
+	(void) pexpiface->theScene->EnumTree(&procDumpNodes);
+	fprintf(pFile, "end\n" );
+
+	return TRUE;
+}
+
+	
+BOOL VtaExportClass::DumpRotations(FILE *pFile, ExpInterface *pexpiface)
+{
+	// Dump bone-rotation info, for each frame
+	// Also dumps root-node translation info (the model's world-position at each frame)
+	DumpFrameRotationsTEP procDumpFrameRotations;
+	procDumpFrameRotations.m_pfile	= pFile;
+	procDumpFrameRotations.m_phec	= this;
+
+	fprintf(pFile, "skeleton\n" );
+	for (TimeValue tv = m_tvStart; tv <= m_tvEnd; tv += m_tpf)
+	{
+		fprintf(pFile, "time %d\n", tv / GetTicksPerFrame() );
+		procDumpFrameRotations.m_tvToDump = tv;
+		(void) pexpiface->theScene->EnumTree(&procDumpFrameRotations);
+	}
+	fprintf(pFile, "end\n" );
+
+	return TRUE;
+}
+	
+	
+BOOL VtaExportClass::DumpModel( FILE *pFile, ExpInterface *pexpiface)
+{
+	// Dump mesh info: vertices, normals, UV texture map coords, bone assignments
+	DumpModelTEP procDumpModel;
+	procDumpModel.m_pfile	= pFile;
+	procDumpModel.m_phec	= this;
+
+	procDumpModel.m_tvBase = m_tvStart;
+
+	fprintf(pFile, "vertexanimation\n" );
+	procDumpModel.m_baseVert = NULL;
+	for (TimeValue tv = m_tvStart; tv <= m_tvEnd; tv += m_tpf)
+	{
+		fprintf(pFile, "time %d\n", tv / GetTicksPerFrame() );
+		procDumpModel.m_tvToDump = tv;
+		procDumpModel.m_baseVertCount = 0;
+		(void) pexpiface->theScene->EnumTree(&procDumpModel);
+	}
+	fprintf(pFile, "end\n" );
+
+	return TRUE;
+}	
+
+
+
+
+//=============================================================================
+//							TREE-ENUMERATION PROCEDURES
+//=============================================================================
+
+#define ASSERT_AND_ABORT(f, sz)							\
+	if (!(f))											\
+	{													\
+		ASSERT_MBOX(FALSE, sz);							\
+		/* cleanup( ); */								\
+		return TREE_ABORT;								\
+	}
+
+
+//=================================================================
+// Methods for CountNodesTEP
+//
+int CountNodesTEP::callback( INode *node)
+{
+	INode *pnode = node; // Hungarian
+
+	ASSERT_MBOX(!(pnode)->IsRootNode(), "Encountered a root node!");
+
+	if (::FUndesirableNode(pnode))
+	{
+		// Mark as skippable
+		::SetIndexOfINode(pnode, VtaExportClass::UNDESIRABLE_NODE_MARKER);
+		return TREE_CONTINUE;
+	}
+	
+	// Establish "node index"--just ascending ints
+	::SetIndexOfINode(pnode, m_cNodes);
+
+	m_cNodes++;
+	
+	return TREE_CONTINUE;
+}
+
+
+//=================================================================
+// Methods for CollectNodesTEP
+//
+int CollectNodesTEP::callback(INode *node)
+{
+	INode *pnode = node; // Hungarian
+
+	ASSERT_MBOX(!(pnode)->IsRootNode(), "Encountered a root node!");
+
+	if (::FNodeMarkedToSkip(pnode))
+		return TREE_CONTINUE;
+
+	// Get pre-stored "index"
+	int iNode = ::GetIndexOfINode(pnode);
+	ASSERT_MBOX(iNode >= 0 && iNode <= m_phec->m_imaxnodeMac-1, "Bogus iNode");
+	
+	// Get name, store name in array
+	TSTR strNodeName(pnode->GetName());
+	strcpy(m_phec->m_rgmaxnode[iNode].szNodeName, (char*)strNodeName);
+
+	// Get Node's time-zero Transformation Matrices
+	m_phec->m_rgmaxnode[iNode].mat3NodeTM		= pnode->GetNodeTM(0/*TimeValue*/);
+	m_phec->m_rgmaxnode[iNode].mat3ObjectTM		= pnode->GetObjectTM(0/*TimeValue*/);
+
+	// I'll calculate this later
+	m_phec->m_rgmaxnode[iNode].imaxnodeParent	= VtaExportClass::UNDESIRABLE_NODE_MARKER;
+
+	return TREE_CONTINUE;
+}
+
+
+
+
+
+
+//=================================================================
+// Methods for DumpNodesTEP
+//
+int DumpNodesTEP::callback(INode *pnode)
+{
+	ASSERT_MBOX(!(pnode)->IsRootNode(), "Encountered a root node!");
+
+	if (::FNodeMarkedToSkip(pnode))
+		return TREE_CONTINUE;
+
+	// Get node's parent
+	INode *pnodeParent;
+	pnodeParent = pnode->GetParentNode();
+	
+	// The model's root is a child of the real "scene root"
+	TSTR strNodeName(pnode->GetName());
+	BOOL fNodeIsRoot = pnodeParent->IsRootNode( );
+	
+	int iNode = ::GetIndexOfINode(pnode);
+	int iNodeParent = ::GetIndexOfINode(pnodeParent, !fNodeIsRoot/*fAssertPropExists*/);
+
+	// Convenient time to cache this
+	m_phec->m_rgmaxnode[iNode].imaxnodeParent = fNodeIsRoot ? VtaExportClass::UNDESIRABLE_NODE_MARKER : iNodeParent;
+
+	// Root node has no parent, thus no translation
+	if (fNodeIsRoot)
+		iNodeParent = -1;
+		
+	// Dump node description
+	fprintf(m_pfile, "%3d \"%s\" %3d\n", 
+		iNode, 
+		strNodeName, 
+		iNodeParent );
+
+	return TREE_CONTINUE;
+}
+
+
+
+//=================================================================
+// Methods for DumpFrameRotationsTEP
+//
+int DumpFrameRotationsTEP::callback(INode *pnode)
+{
+	ASSERT_MBOX(!(pnode)->IsRootNode(), "Encountered a root node!");
+
+	if (::FNodeMarkedToSkip(pnode))
+		return TREE_CONTINUE;
+
+	int iNode = ::GetIndexOfINode(pnode);
+
+	TSTR strNodeName(pnode->GetName());
+
+	// The model's root is a child of the real "scene root"
+	INode *pnodeParent = pnode->GetParentNode();
+	BOOL fNodeIsRoot = pnodeParent->IsRootNode( );
+
+	// Get Node's "Local" Transformation Matrix
+	Matrix3 mat3NodeTM		= pnode->GetNodeTM(m_tvToDump);
+	Matrix3 mat3ParentTM	= pnodeParent->GetNodeTM(m_tvToDump);
+	mat3NodeTM.NoScale();		// Clear these out because they apparently
+	mat3ParentTM.NoScale();		// screw up the following calculation.
+	Matrix3 mat3NodeLocalTM	= mat3NodeTM * Inverse(mat3ParentTM);
+	Point3 rowTrans = mat3NodeLocalTM.GetTrans();
+
+	// Get the rotation (via decomposition into "affine parts", then quaternion-to-Euler)
+	// Apparently the order of rotations returned by QuatToEuler() is X, then Y, then Z.
+	AffineParts affparts;
+	float rgflXYZRotations[3];
+
+	decomp_affine(mat3NodeLocalTM, &affparts);
+	QuatToEuler(affparts.q, rgflXYZRotations);
+
+	float xRot = rgflXYZRotations[0];		// in radians
+	float yRot = rgflXYZRotations[1];		// in radians
+	float zRot = rgflXYZRotations[2];		// in radians
+
+	// Get rotations in the -2pi...2pi range
+	xRot = ::FlReduceRotation(xRot);
+	yRot = ::FlReduceRotation(yRot);
+	zRot = ::FlReduceRotation(zRot);
+	
+	// Print rotations
+	//fprintf(m_pfile, "%3d %8.4f %8.4f %8.4f %8.4f %8.4f %8.4f\n", 
+	fprintf(m_pfile, "%3d %f %f %f %f %f %f\n", 
+			// Node:%-15s Rotation (x,y,z)\n",
+			iNode, rowTrans.x, rowTrans.y, rowTrans.z, xRot, yRot, zRot);
+
+	return TREE_CONTINUE;
+}
+
+
+
+//=================================================================
+// Methods for DumpModelTEP
+//
+Modifier *FindPhysiqueModifier (INode *nodePtr)
+{
+	// Get object from node. Abort if no object.
+	Object *ObjectPtr = nodePtr->GetObjectRef();
+	if (!ObjectPtr) return NULL;
+
+	// Is derived object ?
+	if (ObjectPtr->SuperClassID() == GEN_DERIVOB_CLASS_ID)
+	{
+		// Yes -> Cast.
+		IDerivedObject *DerivedObjectPtr = static_cast<IDerivedObject*>(ObjectPtr);
+
+		// Iterate over all entries of the modifier stack.
+		int ModStackIndex = 0;
+		while (ModStackIndex < DerivedObjectPtr->NumModifiers())
+		{
+			// Get current modifier.
+			Modifier *ModifierPtr = DerivedObjectPtr->GetModifier(ModStackIndex);
+
+			// Is this Physique ?
+			if (ModifierPtr->ClassID() == Class_ID(	PHYSIQUE_CLASS_ID_A, PHYSIQUE_CLASS_ID_B) )
+			{
+				// Yes -> Exit.
+				return ModifierPtr;
+			}
+			// Next modifier stack entry.
+			ModStackIndex++;
+		}
+	}
+	// Not found.
+	return NULL;
+}
+
+
+// #define DEBUG_MESH_DUMP
+
+//=================================================================
+// Methods for DumpModelTEP
+//
+int DumpModelTEP::callback(INode *pnode)
+{
+	ASSERT_MBOX(!(pnode)->IsRootNode(), "Encountered a root node!");
+
+	if (::FNodeMarkedToSkip(pnode))
+		return TREE_CONTINUE;
+	
+	if ( !pnode->Selected())
+		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
+	Object *pobj = pnode->GetObjectRef();
+	if (pobj->SuperClassID() == HELPER_CLASS_ID)
+		return TREE_CONTINUE;
+
+
+   // Get the object's parameter block if it has one 
+
+    IParamBlock *pb = NULL;
+    IParamArray *pa = pobj->GetParamBlock(); 
+
+	if (!pa) 
+	{
+		int i = pobj->NumRefs();
+		// Search the references looking for a parameter block 
+		for (i = 0; i < pobj->NumRefs(); i++) 
+		{
+			RefTargetHandle r = pobj->GetReference(i); 
+			if (r)
+			{
+				Class_ID x = r->ClassID();
+
+				if (r && r->ClassID() == Class_ID(PARAMETER_BLOCK_CLASS_ID,0)) 
+				{
+					pb = (IParamBlock *) r;
+				}
+			}
+		}
+	}
+	else 
+	{
+		// pb = pa->GetParamBlock2();
+	}
+
+	if (pb)
+	{
+	    // Find out how many _animatable_ parameters there are 
+        int count = pb->NumSubs();
+
+        // Display data about each one
+        for (int i = 0; i < count; i++)
+		{
+			TSTR name = pb->SubAnimName(i);
+
+			int pbIndex = pb->AnimNumToParamNum(i);
+
+			TSTR cname;
+
+			SClass_ID sc = pb->GetAnimParamControlType(i); 
+
+			if (sc == CTRL_FLOAT_CLASS_ID) 
+
+			cname = TSTR(_T("Float"));
+
+			else if (sc == CTRL_POINT3_CLASS_ID) 
+
+			cname = TSTR(_T("Point3"));
+		}
+	}
+
+
+
+	// 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;
+
+	// 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);
+	}
+
+	// convert mesh to triobject
+	if (!pobj->CanConvertToType(triObjectClassID))
+		return TREE_CONTINUE;
+	TriObject *ptriobj = (TriObject*)pobj->ConvertToType(m_tvToDump, triObjectClassID);
+
+	if (ptriobj == NULL)
+		return TREE_CONTINUE;
+
+	Mesh *pmesh = &ptriobj->mesh;
+	BOOL deleteMesh = (ptriobj != pobj);
+
+	// 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);
+	Matrix3 mat3ObjectNTM = mat3ObjectTM;
+	mat3ObjectNTM.NoScale( );
+
+	int cVerts = pmesh->getNumVerts();
+
+	// it would be nice to just evaluate the object for both time periods, but MAX
+	// may do EvalWorldState in place, so the vertex animations get stomped
+	if (m_tvToDump == m_tvBase)
+	{
+		if (m_baseVert)
+			m_baseVert = (Point3 *)realloc( m_baseVert, (m_baseVertCount + cVerts) * sizeof( Point3 ) );
+		else
+			m_baseVert = (Point3 *)malloc( (m_baseVertCount + cVerts) * sizeof( Point3 ) );
+
+		for (int iVert = 0; iVert < cVerts; iVert++)
+		{
+			Point3 pt3Vertex1 = pmesh->getVert(iVert);
+			int iAdjVert = m_baseVertCount + iVert;
+
+			m_baseVert[iAdjVert] = pt3Vertex1 * mat3ObjectTM;
+
+			Point3 pt3Normal1 = pmesh->getNormal(iVert);
+			pt3Normal1 = VectorTransform( mat3ObjectNTM, pt3Normal1 );
+
+			fprintf(m_pfile, "%5d %8.4f %8.4f %8.4f  %9.6f %9.6f %9.6f\n",
+					iAdjVert, m_baseVert[iAdjVert].x, m_baseVert[iAdjVert].y, m_baseVert[iAdjVert].z,
+					pt3Normal1.x, pt3Normal1.y, pt3Normal1.z );
+
+		}
+	}
+	else
+	{
+		for (int iVert = 0; iVert < cVerts; iVert++)
+		{
+			Point3 pt3Vertex1 = pmesh->getVert(iVert);
+			Point3 v1 = pt3Vertex1 * mat3ObjectTM;
+
+			int iAdjVert = m_baseVertCount + iVert;
+
+			if (Length( m_baseVert[iAdjVert] - v1) > 0.01)
+			{
+				Point3 pt3Vertex2 = pt3Vertex1;
+				pt3Vertex2.z = pt3Vertex2.z + 10.0;
+				pmesh->setVert( iVert, pt3Vertex2 );
+				
+				Point3 pt3Normal1 = pmesh->getNormal(iVert);
+				pt3Normal1 = VectorTransform( mat3ObjectNTM, pt3Normal1 );
+
+				fprintf(m_pfile, "%5d %8.4f %8.4f %8.4f  %9.6f %9.6f %9.6f\n",
+						iAdjVert, v1.x, v1.y, v1.z, 
+						pt3Normal1.x, pt3Normal1.y, pt3Normal1.z );
+			}
+		}
+	}
+	m_baseVertCount += cVerts;
+
+	fflush( m_pfile );
+
+	/*
+	if (deleteMesh)
+		delete pmesh;
+	*/
+
+	return TREE_CONTINUE;
+}
+
+
+
+Point3 DumpModelTEP::Pt3GetRVertexNormal(RVertex *prvertex, DWORD smGroupFace)
+{
+	// Lookup the appropriate vertex normal, based on smoothing group.
+	int cNormals = prvertex->rFlags & NORCT_MASK;
+
+	ASSERT_MBOX((cNormals == 1 && prvertex->ern == NULL) ||
+				(cNormals > 1 && prvertex->ern != NULL), "BOGUS RVERTEX");
+	
+	if (cNormals == 1)
+		return prvertex->rn.getNormal();
+	else
+	{
+		for (int irn = 0; irn < cNormals; irn++)
+			if (prvertex->ern[irn].getSmGroup() & smGroupFace)
+				break;
+
+		if (irn >= cNormals) 
+		{
+			irn = 0;
+			// ASSERT_MBOX(irn < cNormals, "unknown smoothing group\n");
+		}
+		return prvertex->ern[irn].getNormal();
+	}
+}
+
+
+DumpModelTEP::~DumpModelTEP()
+{
+	if (m_baseVert)
+	{
+		delete m_baseVert;
+	}
+}
+
+
+//========================================================================
+// Utility functions for getting/setting the personal "node index" property.
+// NOTE: I'm storing a string-property because I hit a 3DSMax bug in v1.2 when I
+// NOTE: tried using an integer property.
+// FURTHER NOTE: those properties seem to change randomly sometimes, so I'm
+// implementing my own.
+
+typedef struct
+{
+	char	szNodeName[VtaExportClass::MAX_NAME_CHARS];
+	int		iNode;
+} NAMEMAP;
+const int MAX_NAMEMAP = 512;
+static NAMEMAP g_rgnm[MAX_NAMEMAP];
+
+int GetIndexOfINode(INode *pnode, BOOL fAssertPropExists)
+{
+	TSTR strNodeName(pnode->GetName());
+	for (int inm = 0; inm < g_inmMac; inm++)
+		if (FStrEq(g_rgnm[inm].szNodeName, (char*)strNodeName))
+			return g_rgnm[inm].iNode;
+	if (fAssertPropExists)
+		ASSERT_MBOX(FALSE, "No NODEINDEXSTR property");
+	return -7777;
+}
+
+	
+void SetIndexOfINode(INode *pnode, int inode)
+{
+	TSTR strNodeName(pnode->GetName());
+	NAMEMAP *pnm;
+	for (int inm = 0; inm < g_inmMac; inm++)
+		if (FStrEq(g_rgnm[inm].szNodeName, (char*)strNodeName))
+			break;
+	if (inm < g_inmMac)
+		pnm = &g_rgnm[inm];
+	else
+	{
+		ASSERT_MBOX(g_inmMac < MAX_NAMEMAP, "NAMEMAP is full");
+		pnm = &g_rgnm[g_inmMac++];
+		strcpy(pnm->szNodeName, (char*)strNodeName);
+	}
+	pnm->iNode = inode;
+}
+
+
+//=============================================================
+// Returns TRUE if a node should be ignored during tree traversal.
+//
+BOOL FUndesirableNode(INode *pnode)
+{
+	// Get Node's underlying object, and object class name
+	Object *pobj = pnode->GetObjectRef();
+
+	// Don't care about lights, dummies, and cameras
+	if (pobj->SuperClassID() == CAMERA_CLASS_ID)
+		return TRUE;
+	if (pobj->SuperClassID() == LIGHT_CLASS_ID)
+		return TRUE;
+
+	return FALSE;
+
+	// Actually, if it's not selected, pretend it doesn't exist!
+	//if (!pnode->Selected())
+	//	return TRUE;
+	//return FALSE;
+}
+
+
+//=============================================================
+// Returns TRUE if a node has been marked as skippable
+//
+BOOL FNodeMarkedToSkip(INode *pnode)
+{
+	return (::GetIndexOfINode(pnode) == VtaExportClass::UNDESIRABLE_NODE_MARKER);
+}
+
+	
+//=============================================================
+// Reduces a rotation to within the -2PI..2PI range.
+//
+static float FlReduceRotation(float fl)
+{
+	while (fl >= TWOPI)
+		fl -= TWOPI;
+	while (fl <= -TWOPI)
+		fl += TWOPI;
+	return fl;
+}
diff --git a/utils/vtaexp/vtaexp.def b/utils/vtaexp/vtaexp.def
new file mode 100644
index 0000000..ad4a17f
--- /dev/null
+++ b/utils/vtaexp/vtaexp.def
@@ -0,0 +1,8 @@
+LIBRARY vtaexp
+EXPORTS
+	LibDescription		@1
+	LibNumberClasses	@2
+	LibClassDesc		@3
+	LibVersion			@4
+SECTIONS
+	.data READ WRITE
diff --git a/utils/vtaexp/vtaexp.rc b/utils/vtaexp/vtaexp.rc
new file mode 100644
index 0000000..49e5f31
--- /dev/null
+++ b/utils/vtaexp/vtaexp.rc
@@ -0,0 +1,109 @@
+//Microsoft Developer Studio generated resource script.
+//
+#include "smexprc.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "afxres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (U.S.) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+#ifdef _WIN32
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+#pragma code_page(1252)
+#endif //_WIN32
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "smexprc.h\0"
+END
+
+2 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "#include ""afxres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+#ifndef _MAC
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION 2,0,0,1
+ PRODUCTVERSION 2,0,0,1
+ FILEFLAGSMASK 0x3fL
+#ifdef _DEBUG
+ FILEFLAGS 0x1L
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS 0x40004L
+ FILETYPE 0x2L
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "Comments", "\0"
+            VALUE "CompanyName", "Valve LLC\0"
+            VALUE "FileDescription", "VTA file exporter (3D Studio Max plugin)\0"
+            VALUE "FileVersion", "2, 0, 0, 1\0"
+            VALUE "InternalName", "VTAEXP\0"
+            VALUE "LegalCopyright", "Copyright � 1998, Valve LLC\0"
+            VALUE "LegalTrademarks", "The following are registered trademarks of Autodesk, Inc.: 3D Studio MAX.  The following are trademarks of Autodesk, Inc.: Kinetix, Kinetix(logo), BIPED, Physique, Character Studio, MAX DWG, DWG Unplugged, Heidi, FLI, FLC, DXF.\0"
+            VALUE "OriginalFilename", "VTAEXP.DLE\0"
+            VALUE "PrivateBuild", "\0"
+            VALUE "ProductName", "Valve LLC VTAEXP\0"
+            VALUE "ProductVersion", "2, 0, 0, 1\0"
+            VALUE "SpecialBuild", "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END
+
+#endif    // !_MAC
+
+#endif    // English (U.S.) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
+
diff --git a/utils/vtaexp/vtaexp.vcproj b/utils/vtaexp/vtaexp.vcproj
new file mode 100644
index 0000000..4c8d322
--- /dev/null
+++ b/utils/vtaexp/vtaexp.vcproj
@@ -0,0 +1,178 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="7.10"
+	Name="vtaexp"
+	ProjectGUID="{018A7CD6-C40A-463D-86B1-2AF2D0F4B2CD}"
+	SccProjectName=""
+	SccLocalPath="">
+	<Platforms>
+		<Platform
+			Name="Win32"/>
+	</Platforms>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory=".\Debug"
+			IntermediateDirectory=".\Debug"
+			ConfigurationType="2"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="FALSE"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\MAXSDK\INCLUDE"
+				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;VTAEXP_EXPORTS"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="2"
+				UsePrecompiledHeader="2"
+				PrecompiledHeaderFile=".\Debug/vtaexp.pch"
+				AssemblerListingLocation=".\Debug/"
+				ObjectFile=".\Debug/"
+				ProgramDataBaseFileName=".\Debug/"
+				BrowseInformation="1"
+				WarningLevel="3"
+				SuppressStartupBanner="TRUE"
+				DebugInformationFormat="4"
+				CompileAs="0"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="maxutil.lib geom.lib mesh.lib core.lib odbc32.lib odbccp32.lib"
+				OutputFile="c:\3DSMAX3_1\plugins\VTAEXP.DLE"
+				LinkIncremental="1"
+				SuppressStartupBanner="TRUE"
+				AdditionalLibraryDirectories="..\..\maxsdk\lib"
+				ModuleDefinitionFile=".\vtaexp.def"
+				GenerateDebugInformation="TRUE"
+				ProgramDatabaseFile=".\Debug/VTAEXP.pdb"
+				ImportLibrary=".\Debug/VTAEXP.lib"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="_DEBUG"
+				MkTypLibCompatible="TRUE"
+				SuppressStartupBanner="TRUE"
+				TargetEnvironment="1"
+				TypeLibraryName=".\Debug/vtaexp.tlb"
+				HeaderFileName=""/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="_DEBUG"
+				Culture="1033"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory=".\Release"
+			IntermediateDirectory=".\Release"
+			ConfigurationType="2"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="FALSE"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\MAXSDK\INCLUDE"
+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;VTAEXP_EXPORTS"
+				StringPooling="TRUE"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="TRUE"
+				UsePrecompiledHeader="2"
+				PrecompiledHeaderFile=".\Release/vtaexp.pch"
+				AssemblerListingLocation=".\Release/"
+				ObjectFile=".\Release/"
+				ProgramDataBaseFileName=".\Release/"
+				WarningLevel="3"
+				SuppressStartupBanner="TRUE"
+				CompileAs="0"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="c:\3DSMAX3\plugins\VTAEXP.DLE"
+				LinkIncremental="1"
+				SuppressStartupBanner="TRUE"
+				ModuleDefinitionFile=".\vtaexp.def"
+				ProgramDatabaseFile=".\Release/VTAEXP.pdb"
+				ImportLibrary=".\Release/VTAEXP.lib"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="TRUE"
+				SuppressStartupBanner="TRUE"
+				TargetEnvironment="1"
+				TypeLibraryName=".\Release/vtaexp.tlb"
+				HeaderFileName=""/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1033"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
+			<File
+				RelativePath="vtaexp.cpp">
+			</File>
+			<File
+				RelativePath="vtaexp.def">
+			</File>
+			<File
+				RelativePath="vtaexp.rc">
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl">
+			<File
+				RelativePath="vtadefs.h">
+			</File>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/utils/vtaexp/vtaexprc.h b/utils/vtaexp/vtaexprc.h
new file mode 100644
index 0000000..065a66b
--- /dev/null
+++ b/utils/vtaexp/vtaexprc.h
@@ -0,0 +1,28 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+//{{NO_DEPENDENCIES}}
+// Microsoft Developer Studio generated include file.
+// Used by vtaexp.rc
+//
+#define IDD_VTAEXP_UI                  101
+#define IDD_EXPORTOPTIONS               101
+#define IDC_CHECK_SKELETAL              1000
+#define IDC_CHECK_DEFORM                1001
+#define IDC_CHECK_REFFRAME              1002
+#define IDC_CHECK_PHYSIQUE              1003
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1006
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif