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OgreXSIMeshExporter.cpp @ 692

Revision 692, 55.1 KB checked in by mattausch, 19 years ago (diff)
adding ogre 1.2 and dependencies

Line
1	/*
2	-----------------------------------------------------------------------------
3	This source file is part of OGRE
4	(Object-oriented Graphics Rendering Engine)
5	For the latest info, see http://www.ogre3d.org/
6
7	Copyright (c) 2000-2005 The OGRE Team
8	Also see acknowledgements in Readme.html
9
10	This program is free software; you can redistribute it and/or modify it under
11	the terms of the GNU Lesser General Public License as published by the Free Software
12	Foundation; either version 2 of the License, or (at your option) any later
13	version.
14
15	This program is distributed in the hope that it will be useful, but WITHOUT
16	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17	FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19	You should have received a copy of the GNU Lesser General Public License along with
20	this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21	Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22	http://www.gnu.org/copyleft/lesser.txt.
23	-----------------------------------------------------------------------------
24	*/
25	#include "OgreXSIMeshExporter.h"
26	#include <xsi_model.h>
27	#include <xsi_primitive.h>
28	#include <xsi_polygonnode.h>
29	#include <xsi_material.h>
30	#include <xsi_vertex.h>
31	#include <xsi_trianglevertex.h>
32	#include <xsi_cluster.h>
33	#include <xsi_kinematics.h>
34	#include <xsi_kinematicstate.h>
35	#include <xsi_selection.h>
36	#include <xsi_envelope.h>
37	#include <xsi_time.h>
38	#include <xsi_source.h>
39	#include <xsi_edge.h>
40	#include <xsi_vector3.h>
41	#include <xsi_matrix4.h>
42	#include <xsi_mixer.h>
43	#include <xsi_clip.h>
44	#include <xsi_timecontrol.h>
45	#include <xsi_actionsource.h>
46	#include <xsi_fcurve.h>
47	#include <xsi_fcurvekey.h>
48
49	#include "OgreException.h"
50	#include "OgreXSIHelper.h"
51	#include "OgreLogManager.h"
52	#include "OgreMeshManager.h"
53	#include "OgreMesh.h"
54	#include "OgreSubMesh.h"
55	#include "OgreMeshManager.h"
56	#include "OgreMeshSerializer.h"
57	#include "OgreHardwareBufferManager.h"
58	#include "OgreVertexBoneAssignment.h"
59	#include "OgrePose.h"
60	#include "OgreAnimation.h"
61	#include "OgreAnimationTrack.h"
62
63	using namespace XSI;
64
65
66	namespace Ogre {
67	//-----------------------------------------------------------------------
68	XsiMeshExporter::UniqueVertex::UniqueVertex()
69	: position(Vector3::ZERO), normal(Vector3::ZERO), colour(0), nextIndex(0)
70	{
71	for (int i = 0; i < OGRE_MAX_TEXTURE_COORD_SETS; ++i)
72	uv[i] = Vector3::ZERO;
73	}
74	//-----------------------------------------------------------------------
75	bool XsiMeshExporter::UniqueVertex::operator==(const UniqueVertex& rhs) const
76	{
77	bool ret = position == rhs.position &&
78	normal == rhs.normal &&
79	colour == rhs.colour;
80	if (!ret) return ret;
81
82	for (int i = 0; i < OGRE_MAX_TEXTURE_COORD_SETS && ret; ++i)
83	{
84	ret = ret && (uv[i] == rhs.uv[i]);
85	}
86
87	return ret;
88
89
90	}
91	//-----------------------------------------------------------------------
92	//-----------------------------------------------------------------------
93	XsiMeshExporter::XsiMeshExporter()
94	{
95	}
96	//-----------------------------------------------------------------------
97	XsiMeshExporter::~XsiMeshExporter()
98	{
99	/// Tidy up
100	cleanupDeformerMap();
101	cleanupMaterialMap();
102	}
103	//-----------------------------------------------------------------------
104	DeformerMap& XsiMeshExporter::exportMesh(const String& fileName,
105	bool mergeSubMeshes, bool exportChildren,
106	bool edgeLists, bool tangents, bool vertexAnimation,
107	AnimationList& animList, Real fps, const String& materialPrefix,
108	LodData* lod, const String& skeletonName)
109	{
110
111	LogOgreAndXSI(L" Begin OGRE Mesh Export ");
112	// Derive the scene root
113	X3DObject sceneRoot(mXsiApp.GetActiveSceneRoot());
114
115	// Construct mesh
116	MeshPtr pMesh = MeshManager::getSingleton().createManual("XSIExport",
117	ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
118
119	mMaterialPrefix = materialPrefix;
120
121	cleanupDeformerMap();
122	cleanupMaterialMap();
123	mShapeKeyMapping.clear();
124
125	// Find all PolygonMesh objects
126	buildPolygonMeshList(exportChildren);
127	// progress report
128	ProgressManager::getSingleton().progress();
129
130	// notify of skeleton beforehand
131	if (!skeletonName.empty())
132	{
133	pMesh->setSkeletonName(skeletonName);
134	}
135
136	// write the data into a mesh
137	buildMesh(pMesh.getPointer(), mergeSubMeshes, !skeletonName.empty(),
138	vertexAnimation, animList, fps);
139
140	// progress report
141	ProgressManager::getSingleton().progress();
142
143	if (lod)
144	{
145	pMesh->generateLodLevels(lod->distances, lod->quota, lod->reductionValue);
146	// progress report
147	ProgressManager::getSingleton().progress();
148	}
149
150	if(edgeLists)
151	{
152	LogOgreAndXSI(L"Calculating edge lists");
153	pMesh->buildEdgeList();
154	// progress report
155	ProgressManager::getSingleton().progress();
156	}
157
158	if(tangents)
159	{
160	LogOgreAndXSI(L"Calculating tangents");
161	unsigned short src, dest;
162	if (pMesh->suggestTangentVectorBuildParams(src, dest))
163	{
164	pMesh->buildTangentVectors(src, dest);
165	}
166	else
167	{
168	LogOgreAndXSI(L"Could not derive tangents parameters");
169	}
170	// progress report
171	ProgressManager::getSingleton().progress();
172
173	}
174
175	MeshSerializer serializer;
176	serializer.exportMesh(pMesh.getPointer(), fileName);
177
178	// progress report
179	ProgressManager::getSingleton().progress();
180
181	cleanupPolygonMeshList();
182
183	LogOgreAndXSI(L" OGRE Mesh Export Complete ");
184
185	return mXsiDeformerMap;
186	}
187	//-----------------------------------------------------------------------
188	MaterialMap& XsiMeshExporter::getMaterials(void)
189	{
190	return mXsiMaterialMap;
191	}
192	//-----------------------------------------------------------------------
193	TextureProjectionMap& XsiMeshExporter::getTextureProjectionMap(void)
194	{
195	return mTextureProjectionMap;
196	}
197	//-----------------------------------------------------------------------
198	void XsiMeshExporter::buildMesh(Mesh* pMesh, bool mergeSubmeshes,
199	bool lookForBoneAssignments, bool vertexAnimation, AnimationList& animList,
200	Real fps)
201	{
202	/* Iterate over the list of polygon meshes that we've already located.
203	For each one:
204	If we're not merging submeshes, bake any protosubmeshes built
205	into the mesh and clear the protosubmesh list
206	Scan the clusters for 'poly' clusters (which can contain material
207	discrepancies). Any that use a different material should be
208	noted in the polycluster list
209	Build ProtoSubMeshes by iterating over the triangles in the mesh,
210	building the list of UniqueVertices against the material as we
211	go. We check each triangle to see if the polygon index is in
212	the list of polyclusters & if so it goes into the other lists
213
214	Finally, we bake any remaining protosubmeshes into submeshes.
215	*/
216	// Calculate the number of progress updates each mesh must raise
217	float progPerMesh = (float)OGRE_XSI_NUM_MESH_STEPS / (float)(mXsiPolygonMeshList.size());
218	float currProg = 0.0f;
219	for (PolygonMeshList::iterator pm = mXsiPolygonMeshList.begin();
220	pm != mXsiPolygonMeshList.end(); ++pm)
221	{
222	currProg += progPerMesh;
223	unsigned short progUpdates = (unsigned short)currProg;
224	currProg -= progUpdates;
225	// build contents of this polymesh into ProtoSubMesh(es)
226	processPolygonMesh(pMesh, *pm, lookForBoneAssignments, progUpdates);
227
228	if (!mergeSubmeshes)
229	{
230	// export out at the end of every PolygonMesh
231	exportProtoSubMeshes(pMesh);
232	}
233	}
234	if (mergeSubmeshes)
235	{
236	// export out the combined result
237	exportProtoSubMeshes(pMesh);
238	}
239
240	if (vertexAnimation)
241	{
242	exportAnimations(pMesh, animList, fps);
243	}
244	}
245	//-----------------------------------------------------------------------
246	XsiMeshExporter::ProtoSubMesh* XsiMeshExporter::createOrRetrieveProtoSubMesh(
247	const String& materialName, const String& name,
248	TextureCoordDimensionList& texCoordDims, bool hasVertexColours)
249	{
250	bool createNew = false;
251	ProtoSubMesh* ret = 0;
252
253	ProtoSubMeshList::iterator pi = mProtoSubmeshList.find(materialName);
254	if (pi == mProtoSubmeshList.end())
255	{
256	createNew = true;
257	}
258	else
259	{
260	// Check format is compatible
261	bool compat = true;
262	if (pi->second->textureCoordDimensions.size() != texCoordDims.size())
263	{
264	compat = false;
265	}
266	if (pi->second->hasVertexColours != hasVertexColours)
267	{
268	compat = false;
269	}
270	std::vector<ushort>::iterator t = texCoordDims.begin();
271	std::vector<ushort>::iterator u = pi->second->textureCoordDimensions.begin();
272	for (;t != texCoordDims.end(); ++t,++u)
273	{
274	if (t != u)
275	{
276	compat = false;
277	break;
278	}
279	}
280
281	if (compat)
282	{
283	ret = pi->second;
284	}
285	else
286	{
287	// Can't merge these - create new
288	createNew = true;
289	}
290	}
291
292	if (createNew)
293	{
294	ret = new ProtoSubMesh();
295	mProtoSubmeshList[materialName] = ret;
296	ret->materialName = materialName;
297	ret->name = name;
298	ret->textureCoordDimensions = texCoordDims;
299	ret->hasVertexColours = hasVertexColours;
300	}
301
302	return ret;
303
304	}
305	//-----------------------------------------------------------------------
306	void XsiMeshExporter::processPolygonMesh(Mesh* pMesh, PolygonMeshEntry* xsiMesh,
307	bool lookForBoneAssignments, unsigned short progressUpdates)
308	{
309	// Pre-process the mesh
310	if (!preprocessPolygonMesh(xsiMesh))
311	{
312	while(progressUpdates--)
313	ProgressManager::getSingleton().progress();
314
315	return;
316	}
317
318	// Retrieve all the XSI relevant summary info
319	CPointRefArray pointArray(xsiMesh->mesh.GetPoints());
320	MATH::CVector3Array srcPosArray = pointArray.GetPositionArray();
321	CPolygonNodeRefArray nodeArray(xsiMesh->mesh.GetNodes());
322	MATH::CVector3Array srcNormArray = nodeArray.GetNormalArray();
323	CTriangleRefArray triArray = xsiMesh->mesh.GetTriangles();
324
325	StringUtil::StrStreamType msg;
326	msg << "-- " << XSItoOgre(xsiMesh->obj.GetName()) << " --" << std::endl;
327	msg << "Points: " << pointArray.GetCount() << std::endl;
328	msg << "Triangles: " << triArray.GetCount() << std::endl;
329	msg << "Normals: " << srcNormArray.GetCount() << std::endl;
330	msg << "Num UVs: " << mCurrentTextureCoordDimensions.size() << std::endl;
331	String str = msg.str();
332	LogOgreAndXSI(str);
333
334	if (mCurrentTextureCoordDimensions.size() > OGRE_MAX_TEXTURE_COORD_SETS)
335	{
336	// too many texture coordinates!
337	StringUtil::StrStreamType str;
338	str << "PolygonMesh '" << XSItoOgre(xsiMesh->mesh.GetName())
339	<< "' has too many texture coordinate sets ("
340	<< mCurrentTextureCoordDimensions.size()
341	<< "); the limit is " << OGRE_MAX_TEXTURE_COORD_SETS;
342
343	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, str.str(),
344	"XsiMeshExporter::processPolygonMesh");
345
346	}
347
348	// Save transforms
349	MATH::CTransformation xsiTransform = xsiMesh->obj.GetKinematics().GetGlobal().GetTransform();
350	MATH::CTransformation rotTrans;
351	rotTrans.SetRotation(xsiTransform.GetRotation());
352	// Bounds calculation
353	Real squaredRadius = 0.0f;
354	Vector3 min, max;
355	bool first = true;
356	CPolygonFaceRefArray polys(xsiMesh->mesh.GetPolygons());
357	UniqueVertex vertex;
358
359
360	float progPerTri = (float)progressUpdates / triArray.GetCount();
361	float prog = 0.0f;
362	// Iterate through all the triangles
363	// There will often be less positions than normals and UVs
364	// But TrianglePoint
365	for (long t = 0; t < triArray.GetCount(); ++t)
366	{
367	Triangle tri(triArray[t]);
368	// derive sampler indices for triangle
369	size_t samplerIndices[3];
370	deriveSamplerIndices(tri, polys[tri.GetPolygonIndex()], samplerIndices);
371
372	// Decide which ProtoSubMesh we're to add this to (assume main)
373	// If we find this triangle relates to a polygon which is in
374	// a cluster which has a different material, we change
375	ProtoSubMesh* currentProto = mMainProtoMesh;
376	PolygonToProtoSubMeshList::iterator polyi =
377	mPolygonToProtoSubMeshList.find(tri.GetPolygonIndex());
378	if (polyi != mPolygonToProtoSubMeshList.end())
379	{
380	currentProto = polyi->second;
381	}
382	// has this mesh been used in this proto before? if not set offset
383	size_t positionIndexOffset;
384	if (currentProto->lastMeshEntry == xsiMesh)
385	{
386	positionIndexOffset = currentProto->lastMeshIndexOffset;
387	}
388	else
389	{
390	// first time this has been used
391	// since we assume we 100% process each polygon mesh before the next,
392	// just use last pointer since faster in this section
393	currentProto->lastMeshEntry = xsiMesh;
394	positionIndexOffset = currentProto->indices.size();
395	currentProto->lastMeshIndexOffset = positionIndexOffset;
396	// Also have to store this for future reference
397	currentProto->polygonMeshOffsetMap[xsiMesh] = positionIndexOffset;
398	}
399
400	CTriangleVertexRefArray points = tri.GetPoints();
401	for (long p = 0; p < 3; ++p)
402	{
403	TriangleVertex point(points[p]);
404	long posIndex = point.GetIndex(); // unique position index
405	// adjust index per offset, this makes position indices unique
406	// per polymesh in teh same protosubmesh
407	posIndex += positionIndexOffset;
408
409	// Get position
410	MATH::CVector3 xsipos = point.GetPosition();
411	// Apply global SRT
412	xsipos.MulByTransformationInPlace(xsiTransform);
413	vertex.position = XSItoOgre(xsipos);
414	// Get normal
415	MATH::CVector3 xsinorm = point.GetNormal();
416	// Apply global rotation
417	xsinorm *= rotTrans;
418	vertex.normal = XSItoOgre(xsinorm);
419
420	for (size_t i = 0; i < mCurrentTextureCoordDimensions.size(); ++i)
421	{
422	// sampler indices can correctly dereference to sampler-order
423	// uv sets we built earlier
424	vertex.uv[i] = (mCurrentSamplerSets[i])[samplerIndices[p]];
425	}
426
427	if (mCurrentHasVertexColours)
428	vertex.colour = XSItoOgre(point.GetColor());
429
430	size_t index = createOrRetrieveUniqueVertex(
431	currentProto, posIndex, true, vertex);
432	currentProto->indices.push_back(index);
433
434	// bounds
435	if (first)
436	{
437	squaredRadius = vertex.position.squaredLength();
438	min = max = vertex.position;
439	first = false;
440	}
441	else
442	{
443	squaredRadius =
444	std::max(squaredRadius, vertex.position.squaredLength());
445	min.makeFloor(vertex.position);
446	max.makeCeil(vertex.position);
447	}
448	}
449
450	// Progress
451	prog += progPerTri;
452	while (prog >= 1.0f)
453	{
454	ProgressManager::getSingleton().progress();
455	prog -= 1.0f;
456	}
457
458	}
459
460	// Merge bounds
461	AxisAlignedBox box;
462	box.setExtents(min, max);
463	box.merge(pMesh->getBounds());
464	pMesh->_setBounds(box);
465	pMesh->_setBoundingSphereRadius(
466	std::max(
467	pMesh->getBoundingSphereRadius(),
468	Math::Sqrt(squaredRadius)));
469
470	// Deal with any bone assignments
471	if (lookForBoneAssignments)
472	{
473	processBoneAssignments(pMesh, xsiMesh);
474	}
475
476	// process any shape keys
477	processShapeKeys(pMesh, xsiMesh);
478
479	// Post-process the mesh
480	postprocessPolygonMesh(xsiMesh);
481
482	}
483	//-----------------------------------------------------------------------
484	bool XsiMeshExporter::preprocessPolygonMesh(PolygonMeshEntry* xsiMesh)
485	{
486	// derive number of UVs
487	int numUVs = 0;
488	CRefArray clusterRefArray;
489	// Filter to 'sample' types
490	xsiMesh->mesh.GetClusters().Filter(
491	siSampledPointCluster,CStringArray(),L"",clusterRefArray);
492
493	Cluster samplePointClusterUV;
494	CRefArray uvClusterPropertiesRefArray;
495	int i;
496
497	for(i = 0; i < clusterRefArray.GetCount(); ++i)
498	{
499	Cluster cluster(clusterRefArray[i]);
500	// Now filter all the 'uvspace' children
501	// there is one of these per UV set
502	if(cluster.GetProperties().Filter(
503	siClsUVSpaceTxtType, CStringArray(), L"",
504	uvClusterPropertiesRefArray) == CStatus::OK)
505	{
506	samplePointClusterUV = cluster;
507	break;
508	}
509	}
510
511	// Ok, we now have our array of UV sets
512	numUVs = uvClusterPropertiesRefArray.GetCount();
513	size_t numSamplerPoints = xsiMesh->mesh.GetNodes().GetCount();
514	// list of UVs stored in order of sampler points (use 3D coords by default)
515	mCurrentSamplerSets.reserve(numUVs);
516	mCurrentTextureCoordDimensions.reserve(numUVs);
517	for(i = 0; i < numUVs; ++i)
518	{
519	// init sampler points
520	Vector3* samplerUVs = new Vector3[numSamplerPoints];
521	mCurrentSamplerSets.push_back(samplerUVs);
522
523	// Detect the dimensions by figuring out if any are all 0
524	bool hasU, hasV, hasW;
525	hasU = hasV = hasW = false;
526
527	// Pull out all the UV data for this set and reorder it based on
528	// samples, we'll need this for reference later
529	// get Elements from uvspace Property
530	ClusterProperty uvProp(uvClusterPropertiesRefArray[i]);
531	CClusterPropertyElementArray uvElements = uvProp.GetElements();
532
533	// Add this to an map from uv set name to index
534	String textureProjectionName = XSItoOgre(uvProp.GetName());
535	mTextureProjectionMap[textureProjectionName] = i;
536
537	// Now, each Element here is actually a CDoubleArray of the u,v,w values
538	// However it's not in order of samplers, we need to use the Array
539	// linked to from the Elements collection under the cluster (not the
540	// cluster property, confusing I know) to figure out what sampler
541	// index it is, i.e.
542	// samplerUVs[Array[j]] = Element[j]
543	// In all casesmCurrentSamplerSets in XSI element properties are referenced back to
544	// their original poly index via this array, ie all cluster properties
545	// in the same cluster are dereferenced in the same way.
546	CLongArray derefArray = samplePointClusterUV.GetElements().GetArray();
547
548	for (int j = 0; j < uvElements.GetCount(); ++j)
549	{
550	CDoubleArray curUVW(uvElements.GetItem(j));
551	size_t samplerIndex = derefArray[j];
552	samplerUVs[samplerIndex].x = curUVW[0];//u
553	samplerUVs[samplerIndex].y = 1.0f - curUVW[1];//v (invert)
554	samplerUVs[samplerIndex].z = curUVW[2];//w
555
556	if (!hasU && curUVW[0] > 0)
557	hasU = true;
558	if (!hasV && curUVW[1] > 0)
559	hasV = true;
560	if (!hasW && curUVW[2] > 0)
561	hasW = true;
562
563	}
564
565	// save dimensions
566	mCurrentTextureCoordDimensions.push_back(
567	(hasU?1:0) + (hasV?1:0) + (hasW?1:0));
568
569	}
570
571
572	// do we have vertex colours?
573	ClusterProperty vertexColourClusterProperty = xsiMesh->mesh.GetCurrentVertexColor();
574	if (vertexColourClusterProperty.IsValid())
575	mCurrentHasVertexColours = true;
576	else
577	mCurrentHasVertexColours = false;
578
579
580	/* Create any ProtoSubMeshes which don't exist yet for the
581	* materials in question, and define the PolygonCluster map
582	*/
583	// Main material (will never exist if not merging submeshes)
584	String materialName = mMaterialPrefix +
585	XSItoOgre(xsiMesh->obj.GetMaterial().GetName());
586	registerMaterial(materialName, xsiMesh->obj.GetMaterial());
587
588	mMainProtoMesh = createOrRetrieveProtoSubMesh(
589	materialName,
590	XSItoOgre(xsiMesh->obj.GetName()),
591	mCurrentTextureCoordDimensions,
592	mCurrentHasVertexColours);
593
594	// For each polygon cluster
595	CRefArray polygonClusters;
596	// Filter to 'poly' types
597	xsiMesh->mesh.GetClusters().Filter(siPolygonCluster, CStringArray(), L"",
598	polygonClusters);
599	mPolygonToProtoSubMeshList.clear();
600	for(i = 0; i < polygonClusters.GetCount(); ++i)
601	{
602	Cluster cluster(polygonClusters[i]);
603	// Is the material different for this poly cluster?
604	if (cluster.GetMaterial() != xsiMesh->obj.GetMaterial())
605	{
606	String submatName = mMaterialPrefix +
607	XSItoOgre(cluster.GetMaterial().GetName());
608	registerMaterial(submatName, cluster.GetMaterial());
609	ProtoSubMesh* ps = createOrRetrieveProtoSubMesh(
610	submatName,
611	XSItoOgre(cluster.GetName()),
612	mCurrentTextureCoordDimensions,
613	mCurrentHasVertexColours);
614	// Each element is a polygon index
615	CLongArray elems = cluster.GetElements().GetArray();
616	for (int p = 0; p < elems.GetCount(); ++p)
617	{
618	mPolygonToProtoSubMeshList[elems[p]] = ps;
619	}
620	}
621	}
622
623	return true;
624
625
626	}
627	//-----------------------------------------------------------------------
628	void XsiMeshExporter::postprocessPolygonMesh(PolygonMeshEntry* xsiMesh)
629	{
630	// clear all position index remaps, incase merged
631	for (ProtoSubMeshList::iterator p = mProtoSubmeshList.begin();
632	p != mProtoSubmeshList.end(); ++p)
633	{
634	ProtoSubMesh* ps = p->second;
635	ps->posIndexRemap.clear();
636	}
637
638	// free temp UV data now
639	for(SamplerSetList::iterator s = mCurrentSamplerSets.begin();
640	s != mCurrentSamplerSets.end(); ++s)
641	{
642	// init sampler points
643	delete [] *s;
644	}
645	mCurrentSamplerSets.clear();
646	mCurrentTextureCoordDimensions.clear();
647
648	}
649	//-----------------------------------------------------------------------
650	void XsiMeshExporter::processBoneAssignments(Mesh* pMesh, PolygonMeshEntry* xsiMesh)
651	{
652	// We have to iterate over the clusters which have envelope assignments
653	// then, for each protosubmesh which uses this polymesh, we need to create
654	// a bone assignment for each deformer, not forgetting to add one for
655	// each duplicated copy of this vertex too
656	// We build up a global list of deformers as we go which will get passed
657	// back to the top-level caller to build a skeleton from later
658	CRefArray clusterRefArray;
659	// Filter to 'vertex' types
660	xsiMesh->mesh.GetClusters().Filter(
661	siVertexCluster,CStringArray(),L"",clusterRefArray);
662
663
664
665	for(int i = 0; i < clusterRefArray.GetCount(); ++i)
666	{
667	Cluster cluster(clusterRefArray[i]);
668
669	CRefArray envelopes = cluster.GetEnvelopes();
670	for (int e = 0; e < envelopes.GetCount(); ++e)
671	{
672	Envelope envelope(envelopes[e]);
673
674	// Get mapping from cluster element index to geometry position index
675	CLongArray derefArray = envelope.GetElements(CTime().GetTime()).GetArray();
676
677	CRefArray deformers = envelope.GetDeformers();
678	for (int d = 0; d < deformers.GetCount(); ++d)
679	{
680	X3DObject deformer(deformers[d]);
681	// Has this deformer been allocated a boneID already?
682	String deformerName = XSItoOgre(deformer.GetName());
683	DeformerMap::iterator di =
684	mXsiDeformerMap.find(deformerName);
685	DeformerEntry* deformerEntry;
686	bool newDeformerEntry = false;
687	bool atLeastOneAssignment = false;
688	if (di == mXsiDeformerMap.end())
689	{
690	deformerEntry = new DeformerEntry(mXsiDeformerMap.size(), deformer);
691	deformerEntry->hasVertexAssignments = true;
692	newDeformerEntry = true;
693	}
694	else
695	{
696	deformerEntry = di->second;
697	}
698
699	// Get the weights for this deformer
700	CDoubleArray weights =
701	envelope.GetDeformerWeights(deformer, CTime().GetTime());
702	// Weights are in order of cluster elements, we need to dereference
703	// those to the original point index using the cluster element array
704	for (int w = 0; w < weights.GetCount(); ++w)
705	{
706	size_t positionIndex = derefArray[w];
707	float weight = weights[w];
708	// Skip zero weights
709	if (weight == 0.0f)
710	continue;
711
712	// Locate ProtoSubMeshes which use this mesh
713	for (ProtoSubMeshList::iterator psi = mProtoSubmeshList.begin();
714	psi != mProtoSubmeshList.end(); ++psi)
715	{
716	ProtoSubMesh* ps = psi->second;
717	ProtoSubMesh::PolygonMeshOffsetMap::iterator poli =
718	ps->polygonMeshOffsetMap.find(xsiMesh);
719	if (poli != ps->polygonMeshOffsetMap.end())
720	{
721	// adjust index based on merging
722	size_t adjIndex = positionIndex + poli->second;
723	// look up real index
724	// If it doesn't exist, it's probably on a seam
725	// between clusters and we can safely skip it
726	IndexRemap::iterator remi = ps->posIndexRemap.find(adjIndex);
727	if (remi != ps->posIndexRemap.end())
728	{
729
730	size_t vertIndex = remi->second;
731	bool moreVerts = true;
732	// add UniqueVertex and clones
733	while (moreVerts)
734	{
735	UniqueVertex& vertex = ps->uniqueVertices[vertIndex];
736	VertexBoneAssignment vba;
737	vba.boneIndex = deformerEntry->boneID;
738	vba.vertexIndex = vertIndex;
739	vba.weight = weight;
740	ps->boneAssignments.insert(
741	Mesh::VertexBoneAssignmentList::value_type(vertIndex, vba));
742	atLeastOneAssignment = true;
743
744	if (vertex.nextIndex == 0)
745	{
746	moreVerts = false;
747	}
748	else
749	{
750	vertIndex = vertex.nextIndex;
751	}
752	}
753	}
754
755	}
756	}
757
758
759
760	}
761
762	// Only add new deformer if we actually had any assignments
763	if (newDeformerEntry && atLeastOneAssignment)
764	{
765	mXsiDeformerMap[deformerName] = deformerEntry;
766	}
767
768
769
770
771	}
772
773
774	}
775	}
776
777
778	}
779	//-----------------------------------------------------------------------
780	void XsiMeshExporter::processShapeKeys(Mesh* pMesh, PolygonMeshEntry* xsiMesh)
781	{
782	// ShapeKeys are kept underneath clusters
783	// The clusters are point clusters, not poly clusters like those used
784	// to define materials
785	// Each point cluster identifies the list of points involved, and the shape key
786	// contains the offsets for that key
787	// Like bone assignments, we have to ensure we add keys for duplicated points
788
789	// Get points & vertices incase we need to convert from local reference frame
790	CPointRefArray pointsArray = xsiMesh->mesh.GetPoints();
791	CVertexRefArray verticesArray = xsiMesh->mesh.GetVertices();
792
793	CRefArray clusterRefArray;
794	// Filter to 'pnt' types
795	xsiMesh->mesh.GetClusters().Filter(
796	siVertexCluster,CStringArray(),L"",clusterRefArray);
797
798	for(int i = 0; i < clusterRefArray.GetCount(); ++i)
799	{
800	Cluster cluster(clusterRefArray[i]);
801
802	// Cluster elements are the vertex indices affected
803	CClusterElementArray vertexIndexArray = cluster.GetElements();
804
805	CRefArray clusterProperties = cluster.GetProperties();
806	for (int p = 0; p < clusterProperties.GetCount(); ++p)
807	{
808	ClusterProperty prop(clusterProperties[p]);
809	// Pull out only shape keys
810	if (prop.GetPropertyType() == siClusterPropertyShapeKeyType)
811	{
812	ShapeKey shapeKey(prop);
813
814	Parameter keyTypeParam = shapeKey.GetParameter(L"KeyType");
815	CValue currMode = keyTypeParam.GetValue();
816	/*
817	StringUtil::StrStreamType str;
818	str << "KeyType = " << (unsigned short)currMode <<
819	" siShapeLocalReferenceMode = " << (unsigned short)siShapeLocalReferenceMode <<
820	" siShapeAbsoluteReferenceMode = " << (unsigned short)siShapeAbsoluteReferenceMode <<
821	" siShapeObjectReferenceMode = " << (unsigned short)siShapeObjectReferenceMode;
822	LogOgreAndXSI(str.str());
823	*/
824
825	// XSI bug? siShapeReferenceMode enum doesn't match runtime values
826	// Local = 1, Absolute = 0, Object = 2 in real life
827	// Logged with Softimage as UDEV00203965
828	bool isLocalSpace =
829	((unsigned short)currMode) == 1; //siShapeLocalReferenceMode;
830	bool isGlobalSpace =
831	((unsigned short)currMode) == 0;//siShapeAbsoluteReferenceMode;
832
833	LogOgreAndXSI("Found shape key " + XSItoOgre(shapeKey.GetName()));
834	// elements of property are the offsets, a double array of values
835	CClusterPropertyElementArray shapeElements = shapeKey.GetElements();
836
837	// Locate ProtoSubMeshes which use this mesh
838	for (ProtoSubMeshList::iterator psi = mProtoSubmeshList.begin();
839	psi != mProtoSubmeshList.end(); ++psi)
840	{
841	ProtoSubMesh* ps = psi->second;
842	ProtoSubMesh::PolygonMeshOffsetMap::iterator poli =
843	ps->polygonMeshOffsetMap.find(xsiMesh);
844	if (poli != ps->polygonMeshOffsetMap.end())
845	{
846	// remap from mesh vertex index to proto vertex index
847	size_t indexAdjustment = poli->second;
848
849	// Create a new pose, target is implied by proto, final
850	// index to be determined later including merging
851	Pose pose(0, XSItoOgre(shapeKey.GetName()));
852
853	// Iterate per vertex affected
854	for (int xi = 0; xi < vertexIndexArray.GetCount(); ++xi)
855	{
856	// Index
857	size_t positionIndex = vertexIndexArray.GetItem(xi);
858	// Now get offset
859	CDoubleArray xsiOffset = shapeElements.GetItem(xi);
860	Vector3 offset(xsiOffset[0], xsiOffset[1], xsiOffset[2]);
861
862	// Skip zero offsets
863	if (offset == Vector3::ZERO)
864	continue;
865
866
867	if (isLocalSpace)
868	{
869	// Local reference mode -> object space
870	// Local mode is the most popular since in XSI
871	// it plays nice with skeletal animation, but
872	// it's relative to the _point's_ local space
873
874	// Get local axes
875	// XSI defines local space as:
876	// Y = vertex normal
877	// X = normalised projection of first edge
878	// from vertex onto normal plane
879	// Z = cross product of above
880	Point point(pointsArray[positionIndex]);
881	bool normalValid;
882	Vector3 localY = XSItoOgre(point.GetNormal(normalValid));
883	Vertex vertex(verticesArray.GetItem(positionIndex));
884	CEdgeRefArray edgeArray = vertex.GetNeighborEdges();
885	if (normalValid && edgeArray.GetCount() > 0)
886	{
887
888	Edge edge(edgeArray[0]);
889	CVertexRefArray verticesOnEdge = edge.GetNeighborVertices();
890	Vertex otherVertex =
891	(verticesOnEdge[0] == vertex) ?
892	verticesOnEdge[1] : verticesOnEdge[0];
893	Vector3 edgeVector
894	= XSItoOgre(otherVertex.GetPosition())
895	- XSItoOgre(vertex.GetPosition());
896	// Project the vector onto the normal plane (d irrelevant)
897	Plane normPlane(localY, 0);
898	Vector3 localX = normPlane.projectVector(edgeVector);
899	localX.normalise();
900
901	Vector3 localZ = localX.crossProduct(localY);
902
903	// multiply out position by local axes to form
904	// final position
905	offset = (localX * offset.x) +
906	(localY * offset.y) +
907	(localZ * offset.z);
908
909	}
910
911	}
912
913	if (!isGlobalSpace)
914	{
915	// shape is in object space, if object is parented
916	// by a null or a static bone, we need to adjust the
917	// shape offset since this inherited transform is
918	// baked into the base OGRE mesh (to preserve
919	// relative positioning of parts)
920
921	// If object is parented
922	// Don't know if anyone really uses this
923	// Convert global to object space
924	MATH::CTransformation xform =
925	xsiMesh->obj.GetKinematics().GetGlobal().GetTransform();
926	MATH::CVector3 off(offset.x, offset.y, offset.z);
927	off.MulByTransformationInPlace(xform);
928	offset = XSItoOgre(off);
929
930	}
931
932
933	// adjust index based on merging
934	size_t adjIndex = positionIndex + indexAdjustment;
935	// look up real index
936	// If it doesn't exist, it's probably on a seam
937	// between clusters and we can safely skip it
938	IndexRemap::iterator remi = ps->posIndexRemap.find(adjIndex);
939	if (remi != ps->posIndexRemap.end())
940	{
941
942	size_t vertIndex = remi->second;
943	bool moreVerts = true;
944
945
946	// add UniqueVertex and clones
947	while (moreVerts)
948	{
949	UniqueVertex& vertex = ps->uniqueVertices[vertIndex];
950
951	// Create a vertex pose entry
952	pose.addVertex(vertIndex, offset);
953
954	if (vertex.nextIndex == 0)
955	{
956	moreVerts = false;
957	}
958	else
959	{
960	vertIndex = vertex.nextIndex;
961	}
962	} // more duplicate verts
963	} // found remap?
964	} // for each vertex affected
965
966	// Add pose to proto
967	ps->poseList.push_back(pose);
968
969	// record that we used this shape key
970	ps->shapeKeys.Add(shapeKey);
971
972
973	} // proto found?
974	}// for each proto
975	} // shape key cluster property?
976	} // for each cluster property
977	} // for each cluster
978
979	}
980	//-----------------------------------------------------------------------
981	void XsiMeshExporter::buildShapeClipList(ShapeClipList& listToPopulate)
982	{
983	// Process all mixers
984	Model root = mXsiApp.GetActiveSceneRoot();
985	if (root.HasMixer())
986	buildShapeClipList(root.GetMixer(), listToPopulate);
987
988	// Get all child models (recursive)
989	CRefArray models = root.GetModels();
990	for (int m = 0; m < models.GetCount(); ++m)
991	{
992	Model model(models[m]);
993	if (model.HasMixer())
994	buildShapeClipList(model.GetMixer(), listToPopulate);
995	}
996
997	}
998	//-----------------------------------------------------------------------
999	void XsiMeshExporter::buildShapeClipList(ClipContainer& container,
1000	ShapeClipList& listToPopulate)
1001	{
1002	CRefArray clips = container.GetClips();
1003	for (int c = 0; c < clips.GetCount(); ++c)
1004	{
1005	if (clips[c].IsA(siClipContainerID))
1006	{
1007	ClipContainer container(clips[c]);
1008	// cascade
1009	buildShapeClipList(container, listToPopulate);
1010	}
1011	else
1012	{
1013
1014	XSI::Clip clip(clips[c]);
1015	XSI::CString clipType = clip.GetType();
1016	if (clip.GetType() == siClipShapeType)
1017	{
1018	XSI::TimeControl timeControl = clip.GetTimeControl();
1019	ShapeClipEntry sce;
1020	sce.clip = clip;
1021	sce.startFrame = timeControl.GetStartOffset();
1022	long length = (1.0 / timeControl.GetScale()) *
1023	(timeControl.GetClipOut() - timeControl.GetClipIn() + 1);
1024	sce.endFrame = sce.startFrame + length - 1;
1025
1026	// Find link to shape
1027	sce.keytoPose = 0;
1028	ActionSource source(clip.GetSource());
1029	CRefArray sourceItems = source.GetItems();
1030	assert (sourceItems.GetCount() == 1 && "More than one source item on shape clip!");
1031	AnimationSourceItem sourceItem(sourceItems[0]);
1032	// Source is the shape key
1033	// Locate this in the list we built while building poses
1034	for (ShapeKeyMapping::iterator skm = mShapeKeyMapping.begin();
1035	skm != mShapeKeyMapping.end(); ++skm)
1036	{
1037	ShapeKeyToPoseEntry& mapping = *skm;
1038	if(mapping.shapeKey == sourceItem.GetSource())
1039	{
1040	// bingo
1041	sce.keytoPose = &(*skm);
1042	}
1043	}
1044
1045	listToPopulate.push_back(sce);
1046
1047	}
1048	}
1049
1050	}
1051
1052
1053	}
1054	//-----------------------------------------------------------------------
1055	void XsiMeshExporter::exportAnimations(Mesh* pMesh, AnimationList& animList,
1056	Real fps)
1057	{
1058	ShapeClipList clipList;
1059	buildShapeClipList(clipList);
1060	// Add all animations
1061	for (AnimationList::iterator i = animList.begin(); i != animList.end(); ++i)
1062	{
1063	// For each animation, we want to search for all shape clips using a
1064	// shape key which has been used
1065	AnimationEntry& animEntry = *i;
1066	Animation* anim = 0;
1067
1068	// Iterate per submesh since we want to collect a track per submesh
1069	// Iterate over the 'target index' which is submesh index + 1
1070	for (ushort targetIndex = 1; targetIndex <= pMesh->getNumSubMeshes(); ++targetIndex)
1071	{
1072	// find all shape clips for this submesh overlapping this time period
1073	// we'll clamp the clip too
1074	ShapeClipList submeshClipList;
1075	std::set<long> keyframeList;
1076
1077	deriveShapeClipAndKeyframeList(targetIndex, animEntry, clipList,
1078	submeshClipList, keyframeList);
1079
1080	if (!submeshClipList.empty())
1081	{
1082
1083	// Create animation if we haven't already
1084	if (!anim)
1085	{
1086	Real len = (float)(animEntry.endFrame - animEntry.startFrame + 1) / fps;
1087	anim = pMesh->createAnimation(animEntry.animationName, len);
1088	}
1089
1090	// Create track
1091	VertexAnimationTrack* track =
1092	anim->createVertexTrack(targetIndex, VAT_POSE);
1093
1094	// Now sample all the clips on all the keyframes
1095	for (std::set<long>::iterator k = keyframeList.begin();
1096	k != keyframeList.end(); ++k)
1097	{
1098	// Create a key
1099	long frameNum = *k;
1100	Real keyTime = (float)(frameNum - animEntry.startFrame) / fps;
1101	VertexPoseKeyFrame* keyFrame =
1102	track->createVertexPoseKeyFrame(keyTime);
1103
1104	// Sample all the clips
1105	for (ShapeClipList::iterator c = submeshClipList.begin();
1106	c != submeshClipList.end(); ++c)
1107	{
1108	ShapeClipEntry& sce = *c;
1109	if(frameNum >= sce.startFrame &&
1110	frameNum <= sce.endFrame)
1111	{
1112
1113	// map the keyframe number to a local number
1114	long localFrameNum = frameNum - sce.startFrame *
1115	sce.clip.GetTimeControl().GetScale();
1116
1117	// sample pose influences
1118	// Iterate over the animated parameters, find a 'weight' fcurve entry
1119	bool fcurveFound = false;
1120	CRefArray params = sce.clip.GetAnimatedParameters();
1121	for (int p = 0; p < params.GetCount(); ++p)
1122	{
1123	Parameter param(params[p]);
1124	if (param.GetSource().IsA(siFCurveID))
1125	{
1126	fcurveFound = true;
1127	FCurve fcurve(param.GetSource());
1128	CValue val = fcurve.Eval(localFrameNum);
1129	if ((float)val != 0.0f)
1130	{
1131	keyFrame->addPoseReference(
1132	sce.keytoPose->poseIndex, val);
1133	}
1134
1135	}
1136	}
1137
1138	if (!fcurveFound)
1139	{
1140	// No fcurves, so just assume 1.0 weight since that's
1141	// how XSI deals with it
1142	keyFrame->addPoseReference(sce.keytoPose->poseIndex, 1.0f);
1143
1144	}
1145	}
1146	}
1147	}
1148
1149	}
1150
1151	}
1152	}
1153
1154	}
1155	//-----------------------------------------------------------------------
1156	void XsiMeshExporter::deriveShapeClipAndKeyframeList(ushort targetIndex,
1157	AnimationEntry& animEntry, ShapeClipList& inClipList,
1158	ShapeClipList& outClipList, std::set<long>& keyFrameList)
1159	{
1160	for (ShapeClipList::iterator sci = inClipList.begin();
1161	sci != inClipList.end(); ++sci)
1162	{
1163	ShapeClipEntry& sce = *sci;
1164
1165	if (sce.startFrame <= animEntry.endFrame &&
1166	sce.endFrame >= animEntry.startFrame &&
1167	sce.keytoPose->targetHandle == targetIndex)
1168	{
1169	// Clip overlaps with the animation sampling area and
1170	// applies to this submesh
1171	ShapeClipEntry newClipEntry;
1172	newClipEntry.startFrame = std::max(sce.startFrame, animEntry.startFrame);
1173	newClipEntry.endFrame = std::min(sce.endFrame, animEntry.endFrame);
1174	newClipEntry.clip = sce.clip;
1175	newClipEntry.keytoPose = sce.keytoPose;
1176	outClipList.push_back(newClipEntry);
1177
1178	// Iterate over the animated parameters, find a 'weight' fcurve entry
1179	CRefArray params = sce.clip.GetAnimatedParameters();
1180	for (int p = 0; p < params.GetCount(); ++p)
1181	{
1182	Parameter param(params[p]);
1183	if (param.GetSource().IsA(siFCurveID))
1184	{
1185	FCurve fcurve(param.GetSource());
1186	CRefArray keys = fcurve.GetKeys();
1187	for (int k = 0; k < keys.GetCount(); ++k)
1188	{
1189	FCurveKey key(keys[k]);
1190	// convert from key time to global frame number
1191	CTime time = key.GetTime();
1192	long frameNum = (long)((double)(time.GetTime() + sce.startFrame)
1193	/ sce.clip.GetTimeControl().GetScale());
1194	keyFrameList.insert(frameNum);
1195	}
1196
1197
1198	}
1199	}
1200
1201	}
1202	}
1203	// Always sample start & end frames
1204	keyFrameList.insert(animEntry.startFrame);
1205	keyFrameList.insert(animEntry.endFrame);
1206
1207	}
1208	//-----------------------------------------------------------------------
1209	void XsiMeshExporter::exportProtoSubMeshes(Mesh* pMesh)
1210	{
1211	// Take the list of ProtoSubMesh instances and bake a SubMesh per
1212	// instance, then clear the list
1213
1214	for (ProtoSubMeshList::iterator i = mProtoSubmeshList.begin();
1215	i != mProtoSubmeshList.end(); ++i)
1216	{
1217	// export each one
1218	exportProtoSubMesh(pMesh, i->second);
1219
1220	// free it
1221	delete i->second;
1222	}
1223	mProtoSubmeshList.clear();
1224	}
1225	//-----------------------------------------------------------------------
1226	void XsiMeshExporter::exportProtoSubMesh(Mesh* pMesh, ProtoSubMesh* proto)
1227	{
1228	// Skip protos which have ended up empty
1229	if (proto->indices.empty())
1230	return;
1231
1232	SubMesh* sm = 0;
1233	if (proto->name.empty())
1234	{
1235	// anonymous submesh
1236	sm = pMesh->createSubMesh();
1237	}
1238	else
1239	{
1240	// named submesh
1241	sm = pMesh->createSubMesh(proto->name);
1242	}
1243
1244	// Set material
1245	sm->setMaterialName(proto->materialName);
1246	// never use shared geometry
1247	sm->useSharedVertices = false;
1248	sm->vertexData = new VertexData();
1249	// always do triangle list
1250	sm->indexData->indexCount = proto->indices.size();
1251
1252	sm->vertexData->vertexCount = proto->uniqueVertices.size();
1253	// Determine index size
1254	bool use32BitIndexes = false;
1255	if (proto->uniqueVertices.size() > 65536)
1256	{
1257	use32BitIndexes = true;
1258	}
1259
1260	sm->indexData->indexBuffer =
1261	HardwareBufferManager::getSingleton().createIndexBuffer(
1262	use32BitIndexes ? HardwareIndexBuffer::IT_32BIT : HardwareIndexBuffer::IT_16BIT,
1263	sm->indexData->indexCount,
1264	HardwareBuffer::HBU_STATIC_WRITE_ONLY);
1265	if (use32BitIndexes)
1266	{
1267	uint32* pIdx = static_cast<uint32*>(
1268	sm->indexData->indexBuffer->lock(HardwareBuffer::HBL_DISCARD));
1269	writeIndexes(pIdx, proto->indices);
1270	sm->indexData->indexBuffer->unlock();
1271	}
1272	else
1273	{
1274	uint16* pIdx = static_cast<uint16*>(
1275	sm->indexData->indexBuffer->lock(HardwareBuffer::HBL_DISCARD));
1276	writeIndexes(pIdx, proto->indices);
1277	sm->indexData->indexBuffer->unlock();
1278	}
1279
1280
1281	// define vertex declaration
1282	unsigned buf = 0;
1283	size_t offset = 0;
1284	// always add position and normal
1285	sm->vertexData->vertexDeclaration->addElement(buf, offset, VET_FLOAT3, VES_POSITION);
1286	offset += VertexElement::getTypeSize(VET_FLOAT3);
1287	// Split vertex data after position if poses present
1288	if (!proto->poseList.empty())
1289	{
1290	buf++;
1291	offset = 0;
1292	}
1293	sm->vertexData->vertexDeclaration->addElement(buf, offset, VET_FLOAT3, VES_NORMAL);
1294	offset += VertexElement::getTypeSize(VET_FLOAT3);
1295	// split vertex data here if animated
1296	if (pMesh->hasSkeleton())
1297	{
1298	buf++;
1299	offset = 0;
1300	}
1301	// Optional vertex colour
1302	if(proto->hasVertexColours)
1303	{
1304	sm->vertexData->vertexDeclaration->addElement(buf, offset, VET_COLOUR, VES_DIFFUSE);
1305	offset += VertexElement::getTypeSize(VET_COLOUR);
1306	}
1307	// Define UVs
1308	for (unsigned short uvi = 0; uvi < proto->textureCoordDimensions.size(); ++uvi)
1309	{
1310	VertexElementType uvType =
1311	VertexElement::multiplyTypeCount(
1312	VET_FLOAT1, proto->textureCoordDimensions[uvi]);
1313	sm->vertexData->vertexDeclaration->addElement(
1314	buf, offset, uvType, VES_TEXTURE_COORDINATES, uvi);
1315	offset += VertexElement::getTypeSize(uvType);
1316	}
1317
1318	// create & fill buffer(s)
1319	for (unsigned short b = 0; b <= sm->vertexData->vertexDeclaration->getMaxSource(); ++b)
1320	{
1321	createVertexBuffer(sm->vertexData, b, proto->uniqueVertices);
1322	}
1323
1324	// deal with any bone assignments
1325	if (!proto->boneAssignments.empty())
1326	{
1327	// rationalise first (normalises and strips out any excessive bones)
1328	sm->parent->_rationaliseBoneAssignments(
1329	sm->vertexData->vertexCount, proto->boneAssignments);
1330
1331	for (Mesh::VertexBoneAssignmentList::iterator bi = proto->boneAssignments.begin();
1332	bi != proto->boneAssignments.end(); ++bi)
1333	{
1334	sm->addBoneAssignment(bi->second);
1335	}
1336	}
1337
1338	// poses
1339	// derive target index (current submesh index + 1 since 0 is shared geom)
1340	ushort targetIndex = pMesh->getNumSubMeshes();
1341	ushort sk = 0;
1342	for (std::list<Pose>::iterator pi = proto->poseList.begin();
1343	pi != proto->poseList.end(); ++pi, ++sk)
1344	{
1345	Pose* pose = pMesh->createPose(targetIndex, pi->getName());
1346	Pose::VertexOffsetIterator vertIt =
1347	pi->getVertexOffsetIterator();
1348	while (vertIt.hasMoreElements())
1349	{
1350	pose->addVertex(vertIt.peekNextKey(), vertIt.peekNextValue());
1351	vertIt.getNext();
1352	}
1353
1354	// record shape key to pose mapping for animation later
1355	ShapeKeyToPoseEntry se;
1356	se.shapeKey = proto->shapeKeys[sk];
1357	se.poseIndex = pMesh->getPoseCount() - 1;
1358	se.targetHandle = targetIndex;
1359	mShapeKeyMapping.push_back(se);
1360
1361	}
1362
1363	}
1364	//-----------------------------------------------------------------------
1365	void XsiMeshExporter::buildPolygonMeshList(bool includeChildren)
1366	{
1367	Selection sel(mXsiApp.GetSelection());
1368	if (sel.GetCount() == 0)
1369	{
1370	// Whole scene
1371	// Derive the scene root
1372	X3DObject sceneRoot(mXsiApp.GetActiveSceneRoot());
1373	findPolygonMeshes(sceneRoot, true);
1374	}
1375	else
1376	{
1377	// iterate over selection
1378	for (int i = 0; i < sel.GetCount(); ++i)
1379	{
1380	X3DObject obj(sel[i]);
1381	findPolygonMeshes(obj,includeChildren);
1382	}
1383	}
1384	}
1385	//-----------------------------------------------------------------------
1386	void XsiMeshExporter::findPolygonMeshes(X3DObject& x3dObj, bool recurse)
1387	{
1388	// Check validity of current object
1389	if (!x3dObj.IsValid())
1390	{
1391	OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
1392	"Invalid X3DObject found",
1393	"XsiMeshExporter::exportX3DObject");
1394	}
1395	// Log a message in script window
1396	CString name = x3dObj.GetName() ;
1397	LogOgreAndXSI(L"-- Traversing " + name) ;
1398
1399
1400	// locate any geometry
1401	if (!x3dObj.IsA(siCameraID) &&
1402	!x3dObj.IsA(siLightID) &&
1403	!x3dObj.IsA(siNullID) &&
1404	!x3dObj.IsA(siModelID))
1405	{
1406	Primitive prim(x3dObj.GetActivePrimitive());
1407	if (prim.IsValid())
1408	{
1409	Geometry geom(prim.GetGeometry());
1410	if (geom.GetRef().GetClassID() == siPolygonMeshID)
1411	{
1412	// add it to the list
1413	PolygonMesh pmesh(geom);
1414	mXsiPolygonMeshList.insert(
1415	new PolygonMeshEntry(pmesh, x3dObj));
1416
1417	LogOgreAndXSI(L"-- Queueing " + name) ;
1418	}
1419	}
1420
1421	}
1422
1423	// Cascade into children
1424	if (recurse)
1425	{
1426	CRefArray children = x3dObj.GetChildren();
1427
1428	for(long i = 0; i < children.GetCount(); i++)
1429	{
1430	X3DObject childObj = children[i];
1431	findPolygonMeshes(childObj, recurse);
1432	}
1433	}
1434
1435	}
1436	//-----------------------------------------------------------------------
1437	void XsiMeshExporter::cleanupPolygonMeshList(void)
1438	{
1439	for (PolygonMeshList::iterator pm = mXsiPolygonMeshList.begin();
1440	pm != mXsiPolygonMeshList.end(); ++pm)
1441	{
1442	delete *pm;
1443	}
1444	mXsiPolygonMeshList.clear();
1445	}
1446	//-----------------------------------------------------------------------
1447	void XsiMeshExporter::cleanupDeformerMap(void)
1448	{
1449	for (DeformerMap::iterator d = mXsiDeformerMap.begin();
1450	d != mXsiDeformerMap.end(); ++d)
1451	{
1452	delete d->second;
1453	}
1454	mXsiDeformerMap.clear();
1455	}
1456	//-----------------------------------------------------------------------
1457	void XsiMeshExporter::cleanupMaterialMap(void)
1458	{
1459	for (MaterialMap::iterator d = mXsiMaterialMap.begin();
1460	d != mXsiMaterialMap.end(); ++d)
1461	{
1462	delete d->second;
1463	}
1464	mXsiMaterialMap.clear();
1465	}
1466	//-----------------------------------------------------------------------
1467	void XsiMeshExporter::deriveSamplerIndices(const Triangle& tri,
1468	const PolygonFace& face, size_t* samplerIndices)
1469	{
1470	//We want to find what is the SampleIndex associated with 3
1471	//vertex in a Triangle
1472	CPointRefArray facePoints = face.GetPoints();
1473
1474	//Get the position of the 3 vertex in the triangle
1475	MATH::CVector3Array triPos = tri.GetPositionArray();
1476
1477	//Get the position of the N Points in the polygon
1478	MATH::CVector3Array facePos = facePoints.GetPositionArray();
1479
1480	//To know if the 3 vertex have a point in the same position
1481	bool found[3];
1482	found[0] = false;
1483	found[1] = false;
1484	found[2] = false;
1485
1486	int p,t;
1487	//For the 3 triangle vertices
1488	for(t=0; t<3 ; t++)
1489	{ //for each polygon point
1490	for(p=0; p<facePos.GetCount() && !found[t]; p++)
1491	{
1492	//Check if the position is the same
1493	if(triPos[t] == facePos[p])
1494	{
1495	//if so, we know the PolygonPointIndex of the TriangleVertex
1496	//then, we must find what is the sample index associated
1497	//with this Point
1498	samplerIndices[t] =
1499	getSamplerIndex(Facet(face), facePoints[p]);
1500	found[t] = true;
1501	}
1502	}
1503
1504	}
1505
1506	if (!found[0] \|\| !found[1] \|\| !found[2] )
1507	{
1508	// Problem!
1509	LogOgreAndXSI(L"!! Couldn't find a matching UV point!");
1510	}
1511
1512	}
1513	//-----------------------------------------------------------------------
1514	size_t XsiMeshExporter::getSamplerIndex(const Facet &f, const Point &p)
1515	{
1516	//This function check if a Sample is shared by a Facet and a Point
1517	//just by using the operator=
1518	//Only one Sample can be shared.
1519
1520	Sample curFacetSample;
1521	CSampleRefArray facetSamples( f.GetSamples() );
1522	CSampleRefArray pointSamples( p.GetSamples() );
1523
1524	for(int i = 0; i < facetSamples.GetCount(); i++ )
1525	{
1526
1527	curFacetSample = Sample( facetSamples[i] );
1528
1529	for(int j = 0; j < pointSamples.GetCount(); j++)
1530	{
1531	if(curFacetSample == Sample(pointSamples[j]))
1532	{
1533	return curFacetSample.GetIndex();
1534	}
1535	}
1536	}
1537	// Problem!
1538	mXsiApp.LogMessage(L"!! Couldn't find a matching sample point!");
1539	return 0;
1540	}
1541	//-----------------------------------------------------------------------
1542	template <typename T>
1543	void XsiMeshExporter::writeIndexes(T* buf, IndexList& indexes)
1544	{
1545	IndexList::const_iterator i, iend;
1546	iend = indexes.end();
1547	for (i = indexes.begin(); i != iend; ++i)
1548	{
1549	buf++ = static_cast<T>(i);
1550	}
1551	}
1552	//-----------------------------------------------------------------------
1553	void XsiMeshExporter::createVertexBuffer(VertexData* vd,
1554	unsigned short bufIdx, UniqueVertexList& uniqueVertexList)
1555	{
1556	HardwareVertexBufferSharedPtr vbuf =
1557	HardwareBufferManager::getSingleton().createVertexBuffer(
1558	vd->vertexDeclaration->getVertexSize(bufIdx),
1559	vd->vertexCount,
1560	HardwareBuffer::HBU_STATIC_WRITE_ONLY);
1561	vd->vertexBufferBinding->setBinding(bufIdx, vbuf);
1562	size_t vertexSize = vd->vertexDeclaration->getVertexSize(bufIdx);
1563
1564	char* pBase = static_cast<char*>(
1565	vbuf->lock(HardwareBuffer::HBL_DISCARD));
1566
1567	VertexDeclaration::VertexElementList elems =
1568	vd->vertexDeclaration->findElementsBySource(bufIdx);
1569	VertexDeclaration::VertexElementList::iterator ei, eiend;
1570	eiend = elems.end();
1571	float* pFloat;
1572	RGBA* pRGBA;
1573
1574	UniqueVertexList::iterator srci = uniqueVertexList.begin();
1575
1576	for (size_t v = 0; v < vd->vertexCount; ++v, ++srci)
1577	{
1578	for (ei = elems.begin(); ei != eiend; ++ei)
1579	{
1580	VertexElement& elem = *ei;
1581	switch(elem.getSemantic())
1582	{
1583	case VES_POSITION:
1584	elem.baseVertexPointerToElement(pBase, &pFloat);
1585	*pFloat++ = srci->position.x;
1586	*pFloat++ = srci->position.y;
1587	*pFloat++ = srci->position.z;
1588	break;
1589	case VES_NORMAL:
1590	elem.baseVertexPointerToElement(pBase, &pFloat);
1591	*pFloat++ = srci->normal.x;
1592	*pFloat++ = srci->normal.y;
1593	*pFloat++ = srci->normal.z;
1594	break;
1595	case VES_DIFFUSE:
1596	elem.baseVertexPointerToElement(pBase, &pRGBA);
1597	*pRGBA = srci->colour;
1598	break;
1599	case VES_TEXTURE_COORDINATES:
1600	elem.baseVertexPointerToElement(pBase, &pFloat);
1601	for (int t = 0; t < VertexElement::getTypeCount(elem.getType()); ++t)
1602	{
1603	Real val = srci->uv[elem.getIndex()][t];
1604	*pFloat++ = val;
1605	}
1606	break;
1607	}
1608	}
1609	pBase += vertexSize;
1610	}
1611	vbuf->unlock();
1612
1613	}
1614	//-----------------------------------------------------------------------
1615	size_t XsiMeshExporter::createOrRetrieveUniqueVertex(
1616	ProtoSubMesh* proto, size_t positionIndex,
1617	bool positionIndexIsOriginal, const UniqueVertex& vertex)
1618	{
1619	size_t lookupIndex;
1620	if (positionIndexIsOriginal)
1621	{
1622	// look up the original index
1623	IndexRemap::iterator remapi =
1624	proto->posIndexRemap.find(positionIndex);
1625	if (remapi == proto->posIndexRemap.end())
1626	{
1627	// not found, add
1628	size_t realIndex = proto->uniqueVertices.size();
1629	// add remap entry so we can find this again
1630	proto->posIndexRemap[positionIndex] = realIndex;
1631	proto->uniqueVertices.push_back(vertex);
1632	return realIndex;
1633	}
1634	else
1635	{
1636	// Found existing mapping
1637	lookupIndex = remapi->second;
1638	}
1639	}
1640	else
1641	{
1642	// Not an original index, index is real
1643	lookupIndex = positionIndex;
1644	}
1645
1646	// If we get here, either the position isn't an original index (ie
1647	// we've already found that it doesn't match, and have cascaded)
1648	// or there is an existing entry
1649	// Get existing
1650	UniqueVertex& orig = proto->uniqueVertices[lookupIndex];
1651	// Compare, do we have the same details?
1652	if (orig == vertex)
1653	{
1654	// ok, they match
1655	return lookupIndex;
1656	}
1657	else
1658	{
1659	// no match, go to next or create new
1660	if (orig.nextIndex)
1661	{
1662	// cascade to the next candidate (which is a real index, not an original)
1663	return createOrRetrieveUniqueVertex(
1664	proto, orig.nextIndex, false, vertex);
1665	}
1666	else
1667	{
1668	// No more cascades to check, must be a new one
1669	// get new index
1670	size_t realIndex = proto->uniqueVertices.size();
1671	orig.nextIndex = realIndex;
1672	// create new (NB invalidates 'orig' reference)
1673	proto->uniqueVertices.push_back(vertex);
1674	// note, don't add to remap, that's only for finding the
1675	// first entry, nextIndex is used to chain to the others
1676
1677	return realIndex;
1678	}
1679	}
1680	}
1681	//-----------------------------------------------------------------------
1682	void XsiMeshExporter::registerMaterial(const String& name,
1683	XSI::Material mat)
1684	{
1685	// Check we have a real-time shader based material first
1686	XSI::Parameter rtParam = mat.GetParameter(L"RealTime");
1687
1688	if(rtParam.GetSource().IsValid() &&
1689	rtParam.GetSource().IsA(XSI::siShaderID))
1690	{
1691	MaterialMap::iterator i = mXsiMaterialMap.find(name);
1692	if (i == mXsiMaterialMap.end())
1693	{
1694	// Add this one to the list
1695	MaterialEntry* matEntry = new MaterialEntry();
1696	matEntry->name = name;
1697	matEntry->xsiShader = XSI::Shader(rtParam.GetSource());
1698	mXsiMaterialMap[name] = matEntry;
1699	}
1700	}
1701	}
1702	}

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source: OGRE/trunk/ogrenew/Tools/XSIExport/src/OgreXSIMeshExporter.cpp @ 692

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