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OgreInstancedGeometry.cpp @ 11

Last change on this file since 11 was 5, checked in by anonymous, 17 years ago
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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) 2000-2006 Torus Knot Software Ltd
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	You may alternatively use this source under the terms of a specific version of
25	the OGRE Unrestricted License provided you have obtained such a license from
26	Torus Knot Software Ltd.
27	-----------------------------------------------------------------------------
28	*/
29	#include "OgreStableHeaders.h"
30	#include "OgreInstancedGeometry.h"
31	#include "OgreEntity.h"
32	#include "OgreSubEntity.h"
33	#include "OgreSceneNode.h"
34	#include "OgreException.h"
35	#include "OgreMesh.h"
36	#include "OgreSubMesh.h"
37	#include "OgreLogManager.h"
38	#include "OgreSceneManager.h"
39	#include "OgreCamera.h"
40	#include "OgreMaterialManager.h"
41	#include "OgreRoot.h"
42	#include "OgreRenderSystem.h"
43	#include "OgreEdgeListBuilder.h"
44	#include "OgreStringConverter.h"
45
46	namespace Ogre {
47
48	#define BatchInstance_RANGE 1024
49	#define BatchInstance_HALF_RANGE 512
50	#define BatchInstance_MAX_INDEX 511
51	#define BatchInstance_MIN_INDEX -512
52
53	//--------------------------------------------------------------------------
54	InstancedGeometry::InstancedGeometry(SceneManager* owner, const String& name):
55	mOwner(owner),
56	mName(name),
57	mBuilt(false),
58	mUpperDistance(0.0f),
59	mSquaredUpperDistance(0.0f),
60	mCastShadows(false),
61	mBatchInstanceDimensions(Vector3(1000,1000,1000)),
62	mHalfBatchInstanceDimensions(Vector3(500,500,500)),
63	mOrigin(Vector3(0,0,0)),
64	mVisible(true),
65	mRenderQueueID(RENDER_QUEUE_MAIN),
66	mRenderQueueIDSet(false),
67	mObjectCount(0),
68	mInstancedGeometryInstance(0),
69	mSkeletonInstance(0)
70	{
71	mBaseSkeleton.setNull();
72	}
73	//--------------------------------------------------------------------------
74	InstancedGeometry::~InstancedGeometry()
75	{
76	reset();
77	if(mSkeletonInstance)
78	delete mSkeletonInstance;
79
80
81	}
82	//--------------------------------------------------------------------------
83	InstancedGeometry::BatchInstance*InstancedGeometry::getInstancedGeometryInstance(void)
84	{
85	if (!mInstancedGeometryInstance)
86	{
87	uint32 index = 0;
88	// Make a name
89	StringUtil::StrStreamType str;
90	str << mName << ":" << index;
91
92	mInstancedGeometryInstance = new BatchInstance(this, str.str(), mOwner, index);
93	mOwner->injectMovableObject(mInstancedGeometryInstance);
94	mInstancedGeometryInstance->setVisible(mVisible);
95	mInstancedGeometryInstance->setCastShadows(mCastShadows);
96	if (mRenderQueueIDSet)
97	{
98	mInstancedGeometryInstance->setRenderQueueGroup(mRenderQueueID);
99	}
100	mBatchInstanceMap[index] = mInstancedGeometryInstance;
101
102
103	}
104	return mInstancedGeometryInstance;
105	}
106	//--------------------------------------------------------------------------
107	InstancedGeometry::BatchInstance* InstancedGeometry::getBatchInstance(const AxisAlignedBox& bounds,
108	bool autoCreate)
109	{
110	if (bounds.isNull())
111	return 0;
112
113	// Get the BatchInstance which has the largest overlapping volume
114	const Vector3 min = bounds.getMinimum();
115	const Vector3 max = bounds.getMaximum();
116
117	// Get the min and max BatchInstance indexes
118	ushort minx, miny, minz;
119	ushort maxx, maxy, maxz;
120	getBatchInstanceIndexes(min, minx, miny, minz);
121	getBatchInstanceIndexes(max, maxx, maxy, maxz);
122	Real maxVolume = 0.0f;
123	ushort finalx =0 , finaly = 0, finalz = 0;
124	for (ushort x = minx; x <= maxx; ++x)
125	{
126	for (ushort y = miny; y <= maxy; ++y)
127	{
128	for (ushort z = minz; z <= maxz; ++z)
129	{
130	Real vol = getVolumeIntersection(bounds, x, y, z);
131	if (vol > maxVolume)
132	{
133	maxVolume = vol;
134	finalx = x;
135	finaly = y;
136	finalz = z;
137	}
138
139	}
140	}
141	}
142
143	assert(maxVolume > 0.0f &&
144	"Static geometry: Problem determining closest volume match!");
145
146	return getBatchInstance(finalx, finaly, finalz, autoCreate);
147
148	}
149	//--------------------------------------------------------------------------
150	Real InstancedGeometry::getVolumeIntersection(const AxisAlignedBox& box,
151	ushort x, ushort y, ushort z)
152	{
153	// Get bounds of indexed BatchInstance
154	AxisAlignedBox BatchInstanceBounds = getBatchInstanceBounds(x, y, z);
155	AxisAlignedBox intersectBox = BatchInstanceBounds.intersection(box);
156	// return a 'volume' which ignores zero dimensions
157	// since we only use this for relative comparisons of the same bounds
158	// this will still be internally consistent
159	Vector3 boxdiff = box.getMaximum() - box.getMinimum();
160	Vector3 intersectDiff = intersectBox.getMaximum() - intersectBox.getMinimum();
161
162	return (boxdiff.x == 0 ? 1 : intersectDiff.x) *
163	(boxdiff.y == 0 ? 1 : intersectDiff.y) *
164	(boxdiff.z == 0 ? 1 : intersectDiff.z);
165
166	}
167	//--------------------------------------------------------------------------
168	AxisAlignedBox InstancedGeometry::getBatchInstanceBounds(ushort x, ushort y, ushort z)
169	{
170	Vector3 min(
171	((Real)x - BatchInstance_HALF_RANGE) * mBatchInstanceDimensions.x + mOrigin.x,
172	((Real)y - BatchInstance_HALF_RANGE) * mBatchInstanceDimensions.y + mOrigin.y,
173	((Real)z - BatchInstance_HALF_RANGE) * mBatchInstanceDimensions.z + mOrigin.z
174	);
175	Vector3 max = min + mBatchInstanceDimensions;
176	return AxisAlignedBox(min, max);
177	}
178	//--------------------------------------------------------------------------
179	Vector3 InstancedGeometry::getBatchInstanceCentre(ushort x, ushort y, ushort z)
180	{
181	return Vector3(
182	((Real)x - BatchInstance_HALF_RANGE) * mBatchInstanceDimensions.x + mOrigin.x
183	+ mHalfBatchInstanceDimensions.x,
184	((Real)y - BatchInstance_HALF_RANGE) * mBatchInstanceDimensions.y + mOrigin.y
185	+ mHalfBatchInstanceDimensions.y,
186	((Real)z - BatchInstance_HALF_RANGE) * mBatchInstanceDimensions.z + mOrigin.z
187	+ mHalfBatchInstanceDimensions.z
188	);
189	}
190	//--------------------------------------------------------------------------
191	InstancedGeometry::BatchInstance* InstancedGeometry::getBatchInstance(
192	ushort x, ushort y, ushort z, bool autoCreate)
193	{
194	uint32 index = packIndex(x, y, z);
195	BatchInstance* ret = getBatchInstance(index);
196	if (!ret && autoCreate)
197	{
198	// Make a name
199	StringUtil::StrStreamType str;
200	str << mName << ":" << index;
201	// Calculate the BatchInstance centre
202	Vector3 centre(0,0,0);// = getBatchInstanceCentre(x, y, z);
203	ret = new BatchInstance(this, str.str(), mOwner, index/, centre/);
204	mOwner->injectMovableObject(ret);
205	ret->setVisible(mVisible);
206	ret->setCastShadows(mCastShadows);
207	if (mRenderQueueIDSet)
208	{
209	ret->setRenderQueueGroup(mRenderQueueID);
210	}
211	mBatchInstanceMap[index] = ret;
212	}
213	return ret;
214	}
215	//--------------------------------------------------------------------------
216	InstancedGeometry::BatchInstance* InstancedGeometry::getBatchInstance(uint32 index)
217	{
218	BatchInstanceMap::iterator i = mBatchInstanceMap.find(index);
219	if (i != mBatchInstanceMap.end())
220	{
221	return i->second;
222	}
223	else
224	{
225	return 0;
226	}
227
228	}
229	//--------------------------------------------------------------------------
230	void InstancedGeometry::getBatchInstanceIndexes(const Vector3& point,
231	ushort& x, ushort& y, ushort& z)
232	{
233	// Scale the point into multiples of BatchInstance and adjust for origin
234	Vector3 scaledPoint = (point - mOrigin) / mBatchInstanceDimensions;
235
236	// Round down to 'bottom left' point which represents the cell index
237	int ix = Math::IFloor(scaledPoint.x);
238	int iy = Math::IFloor(scaledPoint.y);
239	int iz = Math::IFloor(scaledPoint.z);
240
241	// Check bounds
242	if (ix < BatchInstance_MIN_INDEX \|\| ix > BatchInstance_MAX_INDEX
243	\|\| iy < BatchInstance_MIN_INDEX \|\| iy > BatchInstance_MAX_INDEX
244	\|\| iz < BatchInstance_MIN_INDEX \|\| iz > BatchInstance_MAX_INDEX)
245	{
246	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
247	"Point out of bounds",
248	"InstancedGeometry::getBatchInstanceIndexes");
249	}
250	// Adjust for the fact that we use unsigned values for simplicity
251	// (requires less faffing about for negatives give 10-bit packing
252	x = static_cast<ushort>(ix + BatchInstance_HALF_RANGE);
253	y = static_cast<ushort>(iy + BatchInstance_HALF_RANGE);
254	z = static_cast<ushort>(iz + BatchInstance_HALF_RANGE);
255
256
257	}
258	//--------------------------------------------------------------------------
259	uint32 InstancedGeometry::packIndex(ushort x, ushort y, ushort z)
260	{
261	return x + (y << 10) + (z << 20);
262	}
263	//--------------------------------------------------------------------------
264	InstancedGeometry::BatchInstance* InstancedGeometry::getBatchInstance(const Vector3& point,
265	bool autoCreate)
266	{
267	ushort x, y, z;
268	getBatchInstanceIndexes(point, x, y, z);
269	return getBatchInstance(x, y, z, autoCreate);
270	}
271	//--------------------------------------------------------------------------
272	AxisAlignedBox InstancedGeometry::calculateBounds(VertexData* vertexData,
273	const Vector3& position, const Quaternion& orientation,
274	const Vector3& scale)
275	{
276	const VertexElement* posElem =
277	vertexData->vertexDeclaration->findElementBySemantic(
278	VES_POSITION);
279	HardwareVertexBufferSharedPtr vbuf =
280	vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
281	unsigned char* vertex =
282	static_cast<unsigned char*>(
283	vbuf->lock(HardwareBuffer::HBL_READ_ONLY));
284	float* pFloat;
285
286	Vector3 min, max;
287	bool first = true;
288
289	for(size_t j = 0; j < vertexData->vertexCount; ++j, vertex += vbuf->getVertexSize())
290	{
291	posElem->baseVertexPointerToElement(vertex, &pFloat);
292
293	Vector3 pt;
294
295	pt.x = (*pFloat++);
296	pt.y = (*pFloat++);
297	pt.z = (*pFloat++);
298	// Transform to world (scale, rotate, translate)
299	pt = (orientation * (pt * scale)) + position;
300	if (first)
301	{
302	min = max = pt;
303	first = false;
304	}
305	else
306	{
307	min.makeFloor(pt);
308	max.makeCeil(pt);
309	}
310
311	}
312	vbuf->unlock();
313	return AxisAlignedBox(min, max);
314	}
315	//--------------------------------------------------------------------------
316	void InstancedGeometry::addEntity(Entity* ent, const Vector3& position,
317	const Quaternion& orientation, const Vector3& scale)
318	{
319
320	const MeshPtr& msh = ent->getMesh();
321	// Validate
322	if (msh->isLodManual())
323	{
324	LogManager::getSingleton().logMessage(
325	"WARNING (InstancedGeometry): Manual LOD is not supported. "
326	"Using only highest LOD level for mesh " + msh->getName());
327	}
328
329	//get the skeleton of the entity, if that's not already done
330	if(!ent->getMesh()->getSkeleton().isNull()&&mBaseSkeleton.isNull())
331	{
332	mBaseSkeleton=ent->getMesh()->getSkeleton();
333	mSkeletonInstance=new SkeletonInstance(mBaseSkeleton);
334	mSkeletonInstance->load();
335	mAnimationState=ent->getAllAnimationStates();
336	}
337	AxisAlignedBox sharedWorldBounds;
338	// queue this entities submeshes and choice of material
339	// also build the lists of geometry to be used for the source of lods
340
341
342	for (uint i = 0; i < ent->getNumSubEntities(); ++i)
343	{
344	SubEntity* se = ent->getSubEntity(i);
345	QueuedSubMesh* q = new QueuedSubMesh();
346
347	// Get the geometry for this SubMesh
348	q->submesh = se->getSubMesh();
349	q->geometryLodList = determineGeometry(q->submesh);
350	q->materialName = se->getMaterialName();
351	q->orientation = orientation;
352	q->position = position;
353	q->scale = scale;
354	q->ID = mObjectCount;
355	// Determine the bounds based on the highest LOD
356	q->worldBounds = calculateBounds(
357	(*q->geometryLodList)[0].vertexData,
358	position, orientation, scale);
359
360	mQueuedSubMeshes.push_back(q);
361	}
362	mObjectCount++;
363
364	}
365	//--------------------------------------------------------------------------
366	InstancedGeometry::SubMeshLodGeometryLinkList*
367	InstancedGeometry::determineGeometry(SubMesh* sm)
368	{
369	// First, determine if we've already seen this submesh before
370	SubMeshGeometryLookup::iterator i =
371	mSubMeshGeometryLookup.find(sm);
372	if (i != mSubMeshGeometryLookup.end())
373	{
374	return i->second;
375	}
376	// Otherwise, we have to create a new one
377	SubMeshLodGeometryLinkList* lodList = new SubMeshLodGeometryLinkList();
378	mSubMeshGeometryLookup[sm] = lodList;
379	ushort numLods = sm->parent->isLodManual() ? 1 :
380	sm->parent->getNumLodLevels();
381	lodList->resize(numLods);
382	for (ushort lod = 0; lod < numLods; ++lod)
383	{
384	SubMeshLodGeometryLink& geomLink = (*lodList)[lod];
385	IndexData *lodIndexData;
386	if (lod == 0)
387	{
388	lodIndexData = sm->indexData;
389	}
390	else
391	{
392	lodIndexData = sm->mLodFaceList[lod - 1];
393	}
394	// Can use the original mesh geometry?
395	if (sm->useSharedVertices)
396	{
397	if (sm->parent->getNumSubMeshes() == 1)
398	{
399	// Ok, this is actually our own anyway
400	geomLink.vertexData = sm->parent->sharedVertexData;
401	geomLink.indexData = lodIndexData;
402	}
403	else
404	{
405	// We have to split it
406	splitGeometry(sm->parent->sharedVertexData,
407	lodIndexData, &geomLink);
408	}
409	}
410	else
411	{
412	if (lod == 0)
413	{
414	// Ok, we can use the existing geometry; should be in full
415	// use by just this SubMesh
416	geomLink.vertexData = sm->vertexData;
417	geomLink.indexData = sm->indexData;
418	}
419	else
420	{
421	// We have to split it
422	splitGeometry(sm->vertexData,
423	lodIndexData, &geomLink);
424	}
425	}
426	assert (geomLink.vertexData->vertexStart == 0 &&
427	"Cannot use vertexStart > 0 on indexed geometry due to "
428	"rendersystem incompatibilities - see the docs!");
429	}
430
431
432	return lodList;
433	}
434	//--------------------------------------------------------------------------
435	void InstancedGeometry::splitGeometry(VertexData* vd, IndexData* id,
436	InstancedGeometry::SubMeshLodGeometryLink* targetGeomLink)
437	{
438	// Firstly we need to scan to see how many vertices are being used
439	// and while we're at it, build the remap we can use later
440	bool use32bitIndexes =
441	id->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT;
442	uint16 *p16;
443	uint32 *p32;
444	IndexRemap indexRemap;
445	if (use32bitIndexes)
446	{
447	p32 = static_cast<uint32*>(id->indexBuffer->lock(
448	id->indexStart,
449	id->indexCount * id->indexBuffer->getIndexSize(),
450	HardwareBuffer::HBL_READ_ONLY));
451	buildIndexRemap(p32, id->indexCount, indexRemap);
452	id->indexBuffer->unlock();
453	}
454	else
455	{
456	p16 = static_cast<uint16*>(id->indexBuffer->lock(
457	id->indexStart,
458	id->indexCount * id->indexBuffer->getIndexSize(),
459	HardwareBuffer::HBL_READ_ONLY));
460	buildIndexRemap(p16, id->indexCount, indexRemap);
461	id->indexBuffer->unlock();
462	}
463	if (indexRemap.size() == vd->vertexCount)
464	{
465	// ha, complete usage after all
466	targetGeomLink->vertexData = vd;
467	targetGeomLink->indexData = id;
468	return;
469	}
470
471
472	// Create the new vertex data records
473	targetGeomLink->vertexData = vd->clone(false);
474	// Convenience
475	VertexData* newvd = targetGeomLink->vertexData;
476	//IndexData* newid = targetGeomLink->indexData;
477	// Update the vertex count
478	newvd->vertexCount = indexRemap.size();
479
480	size_t numvbufs = vd->vertexBufferBinding->getBufferCount();
481	// Copy buffers from old to new
482	for (unsigned short b = 0; b < numvbufs; ++b)
483	{
484	// Lock old buffer
485	HardwareVertexBufferSharedPtr oldBuf =
486	vd->vertexBufferBinding->getBuffer(b);
487	// Create new buffer
488	HardwareVertexBufferSharedPtr newBuf =
489	HardwareBufferManager::getSingleton().createVertexBuffer(
490	oldBuf->getVertexSize(),
491	indexRemap.size(),
492	HardwareBuffer::HBU_STATIC);
493	// rebind
494	newvd->vertexBufferBinding->setBinding(b, newBuf);
495
496	// Copy all the elements of the buffer across, by iterating over
497	// the IndexRemap which describes how to move the old vertices
498	// to the new ones. By nature of the map the remap is in order of
499	// indexes in the old buffer, but note that we're not guaranteed to
500	// address every vertex (which is kinda why we're here)
501	uchar* pSrcBase = static_cast<uchar*>(
502	oldBuf->lock(HardwareBuffer::HBL_READ_ONLY));
503	uchar* pDstBase = static_cast<uchar*>(
504	newBuf->lock(HardwareBuffer::HBL_DISCARD));
505	size_t vertexSize = oldBuf->getVertexSize();
506	// Buffers should be the same size
507	assert (vertexSize == newBuf->getVertexSize());
508
509	for (IndexRemap::iterator r = indexRemap.begin();
510	r != indexRemap.end(); ++r)
511	{
512	assert (r->first < oldBuf->getNumVertices());
513	assert (r->second < newBuf->getNumVertices());
514
515	uchar* pSrc = pSrcBase + r->first * vertexSize;
516	uchar* pDst = pDstBase + r->second * vertexSize;
517	memcpy(pDst, pSrc, vertexSize);
518	}
519	// unlock
520	oldBuf->unlock();
521	newBuf->unlock();
522
523	}
524
525	// Now create a new index buffer
526	HardwareIndexBufferSharedPtr ibuf =
527	HardwareBufferManager::getSingleton().createIndexBuffer(
528	id->indexBuffer->getType(), id->indexCount,
529	HardwareBuffer::HBU_STATIC);
530
531	if (use32bitIndexes)
532	{
533	uint32 pSrc32, pDst32;
534	pSrc32 = static_cast<uint32*>(id->indexBuffer->lock(
535	id->indexStart, id->indexCount * id->indexBuffer->getIndexSize(),
536	HardwareBuffer::HBL_READ_ONLY));
537	pDst32 = static_cast<uint32*>(ibuf->lock(
538	HardwareBuffer::HBL_DISCARD));
539	remapIndexes(pSrc32, pDst32, indexRemap, id->indexCount);
540	id->indexBuffer->unlock();
541	ibuf->unlock();
542	}
543	else
544	{
545	uint16 pSrc16, pDst16;
546	pSrc16 = static_cast<uint16*>(id->indexBuffer->lock(
547	id->indexStart, id->indexCount * id->indexBuffer->getIndexSize(),
548	HardwareBuffer::HBL_READ_ONLY));
549	pDst16 = static_cast<uint16*>(ibuf->lock(
550	HardwareBuffer::HBL_DISCARD));
551	remapIndexes(pSrc16, pDst16, indexRemap, id->indexCount);
552	id->indexBuffer->unlock();
553	ibuf->unlock();
554	}
555
556	targetGeomLink->indexData = new IndexData();
557	targetGeomLink->indexData->indexStart = 0;
558	targetGeomLink->indexData->indexCount = id->indexCount;
559	targetGeomLink->indexData->indexBuffer = ibuf;
560
561	// Store optimised geometry for deallocation later
562	OptimisedSubMeshGeometry *optGeom = new OptimisedSubMeshGeometry();
563	optGeom->indexData = targetGeomLink->indexData;
564	optGeom->vertexData = targetGeomLink->vertexData;
565	mOptimisedSubMeshGeometryList.push_back(optGeom);
566	}
567	//--------------------------------------------------------------------------
568	void InstancedGeometry::addSceneNode(const SceneNode* node)
569	{
570	SceneNode::ConstObjectIterator obji = node->getAttachedObjectIterator();
571	while (obji.hasMoreElements())
572	{
573	MovableObject* mobj = obji.getNext();
574	if (mobj->getMovableType() == "Entity")
575	{
576	addEntity(static_cast<Entity*>(mobj),
577	node->_getDerivedPosition(),
578	node->_getDerivedOrientation(),
579	node->_getDerivedScale());
580	}
581	}
582	// Iterate through all the child-nodes
583	SceneNode::ConstChildNodeIterator nodei = node->getChildIterator();
584
585	while (nodei.hasMoreElements())
586	{
587	const SceneNode* newNode = static_cast<const SceneNode*>(nodei.getNext());
588	// Add this subnode and its children...
589	addSceneNode( newNode );
590	}
591	}
592	//--------------------------------------------------------------------------
593	void InstancedGeometry::build(void)
594	{
595	// Make sure there's nothing from previous builds
596	destroy();
597
598	// Firstly allocate meshes to BatchInstances
599	for (QueuedSubMeshList::iterator qi = mQueuedSubMeshes.begin();
600	qi != mQueuedSubMeshes.end(); ++qi)
601	{
602	QueuedSubMesh* qsm = *qi;
603	//BatchInstance* BatchInstance = getBatchInstance(qsm->worldBounds, true);
604	BatchInstance* batchInstance = getInstancedGeometryInstance();
605	batchInstance->assign(qsm);
606	}
607
608	// Now tell each BatchInstance to build itself
609	for (BatchInstanceMap::iterator ri = mBatchInstanceMap.begin();
610	ri != mBatchInstanceMap.end(); ++ri)
611	{
612	ri->second->build();
613	}
614
615
616	}
617	//--------------------------------------------------------------------------
618	void InstancedGeometry::addBatchInstance(void)
619	{
620
621
622	BatchInstanceIterator regIt = getBatchInstanceIterator();
623	BatchInstance*lastBatchInstance=0 ;
624	while(regIt.hasMoreElements())
625	{
626	lastBatchInstance= regIt.getNext();
627	}
628	uint32 index=(lastBatchInstance)?lastBatchInstance->getID()+1:0;
629	//create a new BatchInstance
630
631	BatchInstance*ret = new BatchInstance(this, mName+":"+StringConverter::toString(index),
632	mOwner, index);
633
634	ret->attachToScene();
635
636	mOwner->injectMovableObject(ret);
637	ret->setVisible(mVisible);
638	ret->setCastShadows(mCastShadows);
639	mBatchInstanceMap[index] = ret;
640
641	if (mRenderQueueIDSet)
642	{
643	ret->setRenderQueueGroup(mRenderQueueID);
644	}
645
646	const size_t numLod = lastBatchInstance->mLodSquaredDistances.size();
647	ret->mLodSquaredDistances.resize(numLod);
648	for (ushort lod = 0; lod < numLod; lod++)
649	{
650	ret->mLodSquaredDistances[lod] =
651	lastBatchInstance->mLodSquaredDistances[lod];
652	}
653
654
655
656	// update bounds
657	AxisAlignedBox box(lastBatchInstance->mAABB.getMinimum(),lastBatchInstance->mAABB.getMaximum());
658	ret->mAABB.merge(box);
659
660	ret->mBoundingRadius = lastBatchInstance->mBoundingRadius ;
661	//now create news instanced objects
662	BatchInstance::ObjectsMap::iterator objIt;
663	for(objIt=lastBatchInstance->getInstancesMap().begin();objIt!=lastBatchInstance->getInstancesMap().end();objIt++)
664	{
665	InstancedObject* instancedObject = ret->isInstancedObjectPresent(objIt->first);
666	if(instancedObject == NULL)
667	{
668	if(mBaseSkeleton.isNull())
669	{
670	instancedObject=new InstancedObject(objIt->first);
671	}
672	else
673	{
674	instancedObject=new InstancedObject(objIt->first,mSkeletonInstance,mAnimationState);
675	}
676	ret->addInstancedObject(objIt->first,instancedObject);
677	}
678
679	}
680
681
682
683	BatchInstance::LODIterator lodIterator = lastBatchInstance->getLODIterator();
684	//parse all the lod buckets of the BatchInstance
685	while (lodIterator.hasMoreElements())
686	{
687
688	LODBucket* lod = lodIterator.getNext();
689	//create a new lod bucket for the new BatchInstance
690	LODBucket* lodBucket= new LODBucket(ret,lod->getLod(),lod->getSquaredDistance());
691
692	//add the lod bucket to the BatchInstance list
693	ret->updateContainers(lodBucket);
694
695	LODBucket::MaterialIterator matIt = lod->getMaterialIterator();
696	//parse all the material buckets of the lod bucket
697	while (matIt.hasMoreElements())
698	{
699
700	MaterialBucket*mat = matIt.getNext();
701	//create a new material bucket
702	String materialName=mat->getMaterialName();
703	MaterialBucket* matBucket = new MaterialBucket(lodBucket,materialName);
704
705	//add the material bucket to the lod buckets list and map
706	lodBucket->updateContainers(matBucket, materialName);
707
708	MaterialBucket::GeometryIterator geomIt = mat->getGeometryIterator();
709	//parse all the geometry buckets of the material bucket
710	while(geomIt.hasMoreElements())
711	{
712	//get the source geometry bucket
713	GeometryBucket *geom = geomIt.getNext();
714	//create a new geometry bucket
715	GeometryBucket *geomBucket = new GeometryBucket(matBucket,geom->getFormatString(),geom);
716
717	//update the material bucket map of the material bucket
718	matBucket->updateContainers(geomBucket, geomBucket->getFormatString() );
719
720	//copy bounding informations
721	geomBucket->getAABB()=geom->getAABB();
722	geomBucket->setBoundingBox( geom->getBoundingBox());
723	//now setups the news InstancedObjects.
724	for(objIt=ret->getInstancesMap().begin();objIt!=ret->getInstancesMap().end();objIt++)
725	{
726	//get the destination IntanciedObject
727	InstancedObject*obj=objIt->second;
728	InstancedObject::GeometryBucketList::iterator findIt;
729	//check if the bucket is not already in the list
730	findIt=std::find(obj->getGeometryBucketList().begin(),obj->getGeometryBucketList().end(),geomBucket);
731	if(findIt==obj->getGeometryBucketList().end())
732	obj->addBucketToList(geomBucket);
733	}
734
735
736	}
737	}
738	}
739	}
740	//--------------------------------------------------------------------------
741	void InstancedGeometry::BatchInstance::updateContainers(LODBucket* bucket )
742	{
743	mLodBucketList.push_back(bucket);
744	}
745	//--------------------------------------------------------------------------
746	void InstancedGeometry::LODBucket::updateContainers(MaterialBucket* bucket, String& name )
747	{
748	mMaterialBucketMap[name] = bucket;
749	}
750
751	//--------------------------------------------------------------------------
752	String InstancedGeometry::GeometryBucket::getFormatString(void) const
753	{
754	return mFormatString;
755	}
756	//--------------------------------------------------------------------------
757	void InstancedGeometry::BatchInstance::attachToScene()
758	{
759
760	mNode = mSceneMgr->getRootSceneNode()->createChildSceneNode(mName/,mCentre/);
761	mNode->attachObject(this);
762	}
763	//--------------------------------------------------------------------------
764	void InstancedGeometry::MaterialBucket::updateContainers(InstancedGeometry::GeometryBucket* bucket, const String & format)
765	{
766	mCurrentGeometryMap[format]=bucket;
767	mGeometryBucketList.push_back(bucket);
768	}
769	void InstancedGeometry::MaterialBucket:: setMaterial(const String & name)
770	{
771	mMaterial=MaterialManager::getSingleton().getByName(name);
772	};
773	//--------------------------------------------------------------------------
774	void InstancedGeometry::destroy(void)
775	{
776	RenderOperationVector::iterator it;
777	for(it=mRenderOps.begin();it!=mRenderOps.end();++it)
778	{
779	delete (*it)->vertexData;
780	delete (*it)->indexData;
781
782	}
783	// delete the BatchInstances
784	for (BatchInstanceMap::iterator i = mBatchInstanceMap.begin();
785	i != mBatchInstanceMap.end(); ++i)
786	{
787	mOwner->extractMovableObject(i->second);
788	delete i->second;
789
790	}
791	mBatchInstanceMap.clear();
792	}
793	//--------------------------------------------------------------------------
794	void InstancedGeometry::reset(void)
795	{
796	destroy();
797
798	for (QueuedSubMeshList::iterator i = mQueuedSubMeshes.begin();
799	i != mQueuedSubMeshes.end(); ++i)
800	{
801	delete *i;
802
803	}
804	mQueuedSubMeshes.clear();
805	// Delete precached geoemtry lists
806	for (SubMeshGeometryLookup::iterator l = mSubMeshGeometryLookup.begin();
807	l != mSubMeshGeometryLookup.end(); ++l)
808	{
809	delete l->second;
810
811	}
812	mSubMeshGeometryLookup.clear();
813	// Delete optimised geometry
814	for (OptimisedSubMeshGeometryList::iterator o = mOptimisedSubMeshGeometryList.begin();
815	o != mOptimisedSubMeshGeometryList.end(); ++o)
816	{
817	delete *o;
818
819	}
820	mOptimisedSubMeshGeometryList.clear();
821
822	}
823	//--------------------------------------------------------------------------
824	void InstancedGeometry::setVisible(bool visible)
825	{
826
827	mVisible = visible;
828	// tell any existing BatchInstances
829	for (BatchInstanceMap::iterator ri = mBatchInstanceMap.begin();
830	ri != mBatchInstanceMap.end(); ++ri)
831	{
832
833
834	ri->second->setVisible(visible);
835	}
836	}
837	//--------------------------------------------------------------------------
838	void InstancedGeometry::setCastShadows(bool castShadows)
839	{
840	mCastShadows = castShadows;
841	// tell any existing BatchInstances
842	for (BatchInstanceMap::iterator ri = mBatchInstanceMap.begin();
843	ri != mBatchInstanceMap.end(); ++ri)
844	{
845	ri->second->setCastShadows(castShadows);
846	}
847
848	}
849	//--------------------------------------------------------------------------
850	void InstancedGeometry::setRenderQueueGroup(uint8 queueID)
851	{
852	assert(queueID <= RENDER_QUEUE_MAX && "Render queue out of range!");
853	mRenderQueueIDSet = true;
854	mRenderQueueID = queueID;
855	// tell any existing BatchInstances
856	for (BatchInstanceMap::iterator ri = mBatchInstanceMap.begin();
857	ri != mBatchInstanceMap.end(); ++ri)
858	{
859	ri->second->setRenderQueueGroup(queueID);
860	}
861	}
862	//--------------------------------------------------------------------------
863	uint8 InstancedGeometry::getRenderQueueGroup(void) const
864	{
865	return mRenderQueueID;
866	}
867	//--------------------------------------------------------------------------
868	void InstancedGeometry::dump(const String& filename) const
869	{
870	std::ofstream of(filename.c_str());
871	of << "Static Geometry Report for " << mName << std::endl;
872	of << "-------------------------------------------------" << std::endl;
873	of << "Number of queued submeshes: " << mQueuedSubMeshes.size() << std::endl;
874	of << "Number of BatchInstances: " << mBatchInstanceMap.size() << std::endl;
875	of << "BatchInstance dimensions: " << mBatchInstanceDimensions << std::endl;
876	of << "Origin: " << mOrigin << std::endl;
877	of << "Max distance: " << mUpperDistance << std::endl;
878	of << "Casts shadows?: " << mCastShadows << std::endl;
879	of << std::endl;
880	for (BatchInstanceMap::const_iterator ri = mBatchInstanceMap.begin();
881	ri != mBatchInstanceMap.end(); ++ri)
882	{
883	ri->second->dump(of);
884	}
885	of << "-------------------------------------------------" << std::endl;
886	}
887	//--------------------------------------------------------------------------
888	InstancedGeometry::InstancedObject::InstancedObject(int index,SkeletonInstance skeleton, AnimationStateSetanimations):mIndex(index),
889	mTransformation(Matrix4::ZERO),
890	mOrientation(Quaternion::IDENTITY),
891	mScale(Vector3::UNIT_SCALE),
892	mPosition(Vector3::ZERO),
893	mSkeletonInstance(skeleton),
894	mBoneWorldMatrices(NULL),
895	mBoneMatrices(NULL),
896	mNumBoneMatrices(0),
897	mFrameAnimationLastUpdated(std::numeric_limits<unsigned long>::max())
898
899	{
900
901	mSkeletonInstance->load();
902
903	mAnimationState = new AnimationStateSet();
904	mNumBoneMatrices = mSkeletonInstance->getNumBones();
905	mBoneMatrices = new Matrix4[mNumBoneMatrices];
906	AnimationStateIterator it=animations->getAnimationStateIterator();
907	while (it.hasMoreElements())
908	{
909	AnimationState*anim= it.getNext();
910	mAnimationState->createAnimationState(anim->getAnimationName(),anim->getTimePosition(),anim->getLength(),
911	anim->getWeight());
912
913	}
914
915	}
916	//--------------------------------------------------------------------------
917	InstancedGeometry::InstancedObject::InstancedObject(int index):mIndex(index),
918	mTransformation(Matrix4::ZERO),
919	mOrientation(Quaternion::IDENTITY),
920	mScale(Vector3::UNIT_SCALE),
921	mPosition(Vector3::ZERO),
922	mSkeletonInstance(0),
923	mBoneWorldMatrices(0),
924	mBoneMatrices(0),
925	mAnimationState(0),
926	mNumBoneMatrices(0),
927	mFrameAnimationLastUpdated(std::numeric_limits<unsigned long>::max())
928	{
929	}
930	//--------------------------------------------------------------------------
931	InstancedGeometry::InstancedObject::~InstancedObject()
932	{
933	mGeometryBucketList.clear();
934	delete mAnimationState;
935	delete[] mBoneMatrices;
936	delete[] mBoneWorldMatrices;
937	}
938	//--------------------------------------------------------------------------
939	void InstancedGeometry::InstancedObject::addBucketToList(GeometryBucket*bucket)
940	{
941	mGeometryBucketList.push_back(bucket);
942	}
943	//--------------------------------------------------------------------------
944	void InstancedGeometry::InstancedObject::setPosition( Vector3 position)
945	{
946
947	mPosition=position;
948	needUpdate();
949	BatchInstanceparentBatchInstance=((mGeometryBucketList.begin()))->getParent()->getParent()->getParent();
950	parentBatchInstance->updateBoundingBox();
951
952	}
953	//--------------------------------------------------------------------------
954	void InstancedGeometry::InstancedObject::translate(const Vector3 &d)
955	{
956	mPosition += d;
957	needUpdate();
958	}
959	//--------------------------------------------------------------------------
960	void InstancedGeometry::InstancedObject::translate(const Matrix3 & axes,const Vector3 &move)
961	{
962	Vector3 derived = axes * move;
963	translate(derived);
964	}
965	//--------------------------------------------------------------------------
966	Matrix3 InstancedGeometry::InstancedObject::getLocalAxes() const
967	{
968	Vector3 axisX = Vector3::UNIT_X;
969	Vector3 axisY = Vector3::UNIT_Y;
970	Vector3 axisZ = Vector3::UNIT_Z;
971
972	axisX = mOrientation * axisX;
973	axisY = mOrientation * axisY;
974	axisZ = mOrientation * axisZ;
975
976	return Matrix3(axisX.x, axisY.x, axisZ.x,
977	axisX.y, axisY.y, axisZ.y,
978	axisX.z, axisY.z, axisZ.z);
979	}
980	//--------------------------------------------------------------------------
981	Vector3 & InstancedGeometry::InstancedObject::getPosition(void)
982	{
983	return mPosition;
984	}
985	//--------------------------------------------------------------------------
986	void InstancedGeometry::InstancedObject::yaw(const Radian&angle)
987	{
988	Quaternion q;
989	q.FromAngleAxis(angle,Vector3::UNIT_Y);
990	rotate(q);
991	}
992	//--------------------------------------------------------------------------
993	void InstancedGeometry::InstancedObject::pitch(const Radian&angle)
994	{
995	Quaternion q;
996	q.FromAngleAxis(angle,Vector3::UNIT_X);
997	rotate(q);
998	}
999	//--------------------------------------------------------------------------
1000	void InstancedGeometry::InstancedObject::roll(const Radian&angle)
1001	{
1002	Quaternion q;
1003	q.FromAngleAxis(angle,Vector3::UNIT_Z);
1004	rotate(q);
1005
1006	}
1007	//--------------------------------------------------------------------------
1008	void InstancedGeometry::InstancedObject::setScale(const Vector3&scale)
1009	{
1010	mScale=scale;
1011	needUpdate();
1012	}
1013	//--------------------------------------------------------------------------
1014	void InstancedGeometry::InstancedObject::rotate(const Quaternion& q)
1015	{
1016
1017	mOrientation = mOrientation * q;
1018	needUpdate();
1019	}
1020	//--------------------------------------------------------------------------
1021	void InstancedGeometry::InstancedObject::needUpdate()
1022	{
1023	mTransformation.makeTransform(
1024	mPosition,
1025	mScale,
1026	mOrientation);
1027
1028
1029	}
1030	//--------------------------------------------------------------------------
1031	void InstancedGeometry::InstancedObject::updateAnimation(void)
1032	{
1033
1034	if(mSkeletonInstance)
1035	{
1036	GeometryBucketList::iterator it;
1037	mSkeletonInstance->setAnimationState(*mAnimationState);
1038	mSkeletonInstance->_getBoneMatrices(mBoneMatrices);
1039
1040	// Allocate bone world matrices on demand, for better memory footprint
1041	// when using software animation.
1042	if (!mBoneWorldMatrices)
1043	{
1044	mBoneWorldMatrices = new Matrix4[mNumBoneMatrices];
1045	}
1046
1047	for (unsigned short i = 0; i < mNumBoneMatrices; ++i)
1048	{
1049	mBoneWorldMatrices[i] = mTransformation * mBoneMatrices[i];
1050
1051	}
1052
1053
1054
1055	}
1056
1057	}
1058	//--------------------------------------------------------------------------
1059	AnimationState* InstancedGeometry::InstancedObject::getAnimationState(const String& name) const
1060	{
1061	if (!mAnimationState)
1062	{
1063	OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Object is not animated",
1064	"InstancedGeometry::InstancedObject::getAnimationState");
1065	}
1066	// AnimationStateIterator it=mAnimationState->getAnimationStateIterator();
1067	// while (it.hasMoreElements())
1068	// {
1069	// AnimationState*anim= it.getNext();
1070	//
1071	//
1072	// }
1073	return mAnimationState->getAnimationState(name);
1074	}
1075	//--------------------------------------------------------------------------
1076	InstancedGeometry::BatchInstanceIterator InstancedGeometry::getBatchInstanceIterator(void)
1077	{
1078	return BatchInstanceIterator(mBatchInstanceMap.begin(), mBatchInstanceMap.end());
1079	}
1080	//--------------------------------------------------------------------------
1081	InstancedGeometry::BatchInstance::BatchInstance(InstancedGeometry* parent, const String& name,
1082	SceneManager* mgr, uint32 BatchInstanceID)
1083	: MovableObject(name), mParent(parent), mSceneMgr(mgr), mNode(0),
1084	mBatchInstanceID(BatchInstanceID), mBoundingRadius(0.0f),
1085	mCurrentLod(0)
1086	{
1087	// First LOD mandatory, and always from 0
1088	mLodSquaredDistances.push_back(0.0f);
1089	}
1090	//--------------------------------------------------------------------------
1091	InstancedGeometry::BatchInstance::~BatchInstance()
1092	{
1093	if (mNode)
1094	{
1095	mNode->getParentSceneNode()->removeChild(mNode);
1096	mSceneMgr->destroySceneNode(mNode->getName());
1097	mNode = 0;
1098	}
1099	// delete
1100	for (LODBucketList::iterator i = mLodBucketList.begin();
1101	i != mLodBucketList.end(); ++i)
1102	{
1103	delete *i;
1104	}
1105	mLodBucketList.clear();
1106	ObjectsMap::iterator o;
1107
1108	for(o=mInstancesMap.begin();o!=mInstancesMap.end();o++)
1109	{
1110	delete o->second;
1111	}
1112	mInstancesMap.clear();
1113	// no need to delete queued meshes, these are managed in InstancedGeometry
1114	}
1115	//--------------------------------------------------------------------------
1116	void InstancedGeometry::BatchInstance::assign(QueuedSubMesh* qmesh)
1117	{
1118	mQueuedSubMeshes.push_back(qmesh);
1119	// update lod distances
1120	ushort lodLevels = qmesh->submesh->parent->getNumLodLevels();
1121	assert(qmesh->geometryLodList->size() == lodLevels);
1122
1123	while(mLodSquaredDistances.size() < lodLevels)
1124	{
1125	mLodSquaredDistances.push_back(0.0f);
1126	}
1127	// Make sure LOD levels are max of all at the requested level
1128	for (ushort lod = 1; lod < lodLevels; ++lod)
1129	{
1130	const MeshLodUsage& meshLod =
1131	qmesh->submesh->parent->getLodLevel(lod);
1132	mLodSquaredDistances[lod] = std::max(mLodSquaredDistances[lod],
1133	meshLod.fromDepthSquared);
1134	}
1135
1136	// update bounds
1137	// Transform world bounds relative to our centre
1138	AxisAlignedBox localBounds(
1139	qmesh->worldBounds.getMinimum() ,
1140	qmesh->worldBounds.getMaximum());
1141	mAABB.merge(localBounds);
1142	mBoundingRadius = std::max(mBoundingRadius, localBounds.getMinimum().length());
1143	mBoundingRadius = std::max(mBoundingRadius, localBounds.getMaximum().length());
1144
1145	}
1146	//--------------------------------------------------------------------------
1147	void InstancedGeometry::BatchInstance::build()
1148	{
1149	// Create a node
1150	mNode = mSceneMgr->getRootSceneNode()->createChildSceneNode(mName);
1151	mNode->attachObject(this);
1152	// We need to create enough LOD buckets to deal with the highest LOD
1153	// we encountered in all the meshes queued
1154	for (ushort lod = 0; lod < mLodSquaredDistances.size(); ++lod)
1155	{
1156	LODBucket* lodBucket =
1157	new LODBucket(this, lod, mLodSquaredDistances[lod]);
1158	mLodBucketList.push_back(lodBucket);
1159	// Now iterate over the meshes and assign to LODs
1160	// LOD bucket will pick the right LOD to use
1161	QueuedSubMeshList::iterator qi, qiend;
1162	qiend = mQueuedSubMeshes.end();
1163	for (qi = mQueuedSubMeshes.begin(); qi != qiend; ++qi)
1164	{
1165	lodBucket->assign(*qi, lod);
1166	}
1167	// now build
1168	lodBucket->build();
1169	}
1170
1171
1172	}
1173
1174	//--------------------------------------------------------------------------
1175	void InstancedGeometry::BatchInstance::updateBoundingBox()
1176	{
1177
1178	Vector3 *Positions = new Vector3[mInstancesMap.size()];
1179
1180	ObjectsMap::iterator objIt;
1181	size_t k = 0;
1182	for(objIt=mInstancesMap.begin();objIt!=mInstancesMap.end();objIt++)
1183	{
1184	Positions[k++] = objIt->second->getPosition();
1185	}
1186
1187	LODIterator lodIterator = getLODIterator();
1188	while (lodIterator.hasMoreElements())
1189	{
1190	LODBucket* lod = lodIterator.getNext();
1191	LODBucket::MaterialIterator matIt = lod->getMaterialIterator();
1192	while (matIt.hasMoreElements())
1193	{
1194	MaterialBucket*mat = matIt.getNext();
1195	MaterialBucket::GeometryIterator geomIt = mat->getGeometryIterator();
1196	while(geomIt.hasMoreElements())
1197	{
1198	// to generate the boundingBox
1199	Real Xmin= Positions[0].x;
1200	Real Ymin= Positions[0].y;
1201	Real Zmin= Positions[0].z;
1202
1203	Real Xmax= Positions[0].x;
1204	Real Ymax= Positions[0].y;
1205	Real Zmax= Positions[0].z;
1206
1207	GeometryBucket*geom=geomIt.getNext();
1208	for (size_t i = 0; i < mInstancesMap.size (); i++)
1209	{
1210	if(Positions[i].x<Xmin)
1211	Xmin = Positions[i].x;
1212	if(Positions[i].y<Ymin)
1213	Ymin = Positions[i].y;
1214	if(Positions[i].z<Zmin)
1215	Zmin = Positions[i].z;
1216	if(Positions[i].x>Xmax)
1217	Xmax = Positions[i].x;
1218	if(Positions[i].y>Ymax)
1219	Ymax = Positions[i].y;
1220	if(Positions[i].z>Zmax)
1221	Zmax = Positions[i].z;
1222	}
1223	geom->setBoundingBox(AxisAlignedBox(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax));
1224	mAABB=AxisAlignedBox(
1225	Vector3(Xmin,Ymin,Zmin) + geom->getAABB().getMinimum(),
1226	Vector3(Xmax,Ymax,Zmax) + geom->getAABB().getMaximum());
1227
1228	}
1229	}
1230	}
1231
1232	delete [] Positions;
1233	}
1234
1235
1236
1237
1238
1239
1240
1241
1242	//--------------------------------------------------------------------------
1243	void InstancedGeometry::BatchInstance::addInstancedObject(int index,InstancedObject* object)
1244	{
1245	mInstancesMap[index]=object;
1246	}
1247	//--------------------------------------------------------------------------
1248	InstancedGeometry::InstancedObject* InstancedGeometry::BatchInstance::isInstancedObjectPresent(int index)
1249	{
1250	if (mInstancesMap.find(index)!=mInstancesMap.end())
1251	return mInstancesMap[index];
1252	else return NULL;
1253	}
1254	//--------------------------------------------------------------------------
1255	InstancedGeometry::InstancedObject** InstancedGeometry::BatchInstance::getObjectsAsArray(unsigned short & size)
1256	{
1257	size = static_cast <unsigned short> (mInstancesMap.size());
1258	ObjectsMap::iterator it;
1259	InstancedObject** array=new InstancedObject*[size];
1260	int i=0;
1261	for(it=mInstancesMap.begin();it!=mInstancesMap.end();it++)
1262	{
1263	array[i]=it->second;
1264	i++;
1265	}
1266	return array;
1267	}
1268	//--------------------------------------------------------------------------
1269
1270	const String& InstancedGeometry::BatchInstance::getMovableType(void) const
1271	{
1272	static String sType = "InstancedGeometry";
1273	return sType;
1274	}
1275	//--------------------------------------------------------------------------
1276	void InstancedGeometry::BatchInstance::_notifyCurrentCamera(Camera* cam)
1277	{
1278	// Calculate squared view depth
1279	Vector3 diff = cam->getDerivedPosition() ;
1280	Real squaredDepth = diff.squaredLength();
1281
1282	// Determine whether to still render
1283	Real renderingDist = mParent->getRenderingDistance();
1284	if (renderingDist > 0)
1285	{
1286	// Max distance to still render
1287	Real maxDist = renderingDist + mBoundingRadius;
1288	if (squaredDepth > Math::Sqr(maxDist))
1289	{
1290	mBeyondFarDistance = true;
1291	return;
1292	}
1293	}
1294
1295	mBeyondFarDistance = false;
1296
1297	// Distance from the edge of the bounding sphere
1298	mCamDistanceSquared = squaredDepth - mBoundingRadius * mBoundingRadius;
1299	// Clamp to 0
1300	mCamDistanceSquared = std::max(static_cast<Real>(0.0), mCamDistanceSquared);
1301
1302	// Determine active lod
1303	mCurrentLod = static_cast<ushort>(mLodSquaredDistances.size() - 1);
1304	assert (!mLodSquaredDistances.empty());
1305	mCurrentLod = static_cast <unsigned short> (mLodSquaredDistances.size() - 1);
1306
1307	for (ushort i = 0; i < mLodSquaredDistances.size(); ++i)
1308	{
1309	if (mLodSquaredDistances[i] > mCamDistanceSquared)
1310	{
1311	mCurrentLod = i - 1;
1312	break;
1313	}
1314	}
1315
1316	}
1317	//--------------------------------------------------------------------------
1318	const AxisAlignedBox& InstancedGeometry::BatchInstance::getBoundingBox(void) const
1319	{
1320	return mAABB;
1321	}
1322	//--------------------------------------------------------------------------
1323	void InstancedGeometry::BatchInstance::setBoundingBox(AxisAlignedBox & box)
1324	{
1325	mAABB=box;
1326	}
1327	//--------------------------------------------------------------------------
1328	Real InstancedGeometry::BatchInstance::getBoundingRadius(void) const
1329	{
1330	return mBoundingRadius;
1331	}
1332	//--------------------------------------------------------------------------
1333	void InstancedGeometry::BatchInstance::_updateRenderQueue(RenderQueue* queue)
1334	{
1335	ObjectsMap::iterator it;
1336	//we parse the Instanced Object map to update the animations.
1337
1338	for (it=mInstancesMap.begin();it!=mInstancesMap.end();++it)
1339	{
1340	it->second->updateAnimation();
1341
1342	}
1343
1344	mLodBucketList[mCurrentLod]->addRenderables(queue, mRenderQueueID,
1345	mCamDistanceSquared);
1346	}
1347	//--------------------------------------------------------------------------
1348	bool InstancedGeometry::BatchInstance::isVisible(void) const
1349	{
1350	return mVisible && !mBeyondFarDistance;
1351	}
1352	//--------------------------------------------------------------------------
1353	InstancedGeometry::BatchInstance::LODIterator
1354	InstancedGeometry::BatchInstance::getLODIterator(void)
1355	{
1356	return LODIterator(mLodBucketList.begin(), mLodBucketList.end());
1357	}
1358	//--------------------------------------------------------------------------
1359	const LightList& InstancedGeometry::BatchInstance::getLights(void) const
1360	{
1361	return queryLights();
1362	}
1363	//--------------------------------------------------------------------------
1364	void InstancedGeometry::BatchInstance::dump(std::ofstream& of) const
1365	{
1366	of << "BatchInstance " << mBatchInstanceID << std::endl;
1367	of << "--------------------------" << std::endl;
1368	of << "Local AABB: " << mAABB << std::endl;
1369	of << "Bounding radius: " << mBoundingRadius << std::endl;
1370	of << "Number of LODs: " << mLodBucketList.size() << std::endl;
1371
1372	for (LODBucketList::const_iterator i = mLodBucketList.begin();
1373	i != mLodBucketList.end(); ++i)
1374	{
1375	(*i)->dump(of);
1376	}
1377	of << "--------------------------" << std::endl;
1378	}
1379	//--------------------------------------------------------------------------
1380	//--------------------------------------------------------------------------
1381	InstancedGeometry::LODBucket::LODBucket(BatchInstance* parent, unsigned short lod,
1382	Real lodDist)
1383	: mParent(parent), mLod(lod), mSquaredDistance(lodDist)
1384	{
1385	}
1386	//--------------------------------------------------------------------------
1387	InstancedGeometry::LODBucket::~LODBucket()
1388	{
1389	// delete
1390	for (MaterialBucketMap::iterator i = mMaterialBucketMap.begin();
1391	i != mMaterialBucketMap.end(); ++i)
1392	{
1393	delete i->second;
1394	}
1395	mMaterialBucketMap.clear();
1396	for(QueuedGeometryList::iterator qi = mQueuedGeometryList.begin();
1397	qi != mQueuedGeometryList.end(); ++qi)
1398	{
1399	delete *qi;
1400	}
1401	mQueuedGeometryList.clear();
1402	// no need to delete queued meshes, these are managed in InstancedGeometry
1403	}
1404	//--------------------------------------------------------------------------
1405	void InstancedGeometry::LODBucket::assign(QueuedSubMesh* qmesh, ushort atLod)
1406	{
1407	QueuedGeometry* q = new QueuedGeometry();
1408	mQueuedGeometryList.push_back(q);
1409	q->position = qmesh->position;
1410	q->orientation = qmesh->orientation;
1411	q->scale = qmesh->scale;
1412	q->ID = qmesh->ID;
1413	if (qmesh->geometryLodList->size() > atLod)
1414	{
1415	// This submesh has enough lods, use the right one
1416	q->geometry = &(*qmesh->geometryLodList)[atLod];
1417	}
1418	else
1419	{
1420	// Not enough lods, use the lowest one we have
1421	q->geometry =
1422	&(*qmesh->geometryLodList)[qmesh->geometryLodList->size() - 1];
1423	}
1424	// Locate a material bucket
1425	MaterialBucket* mbucket = 0;
1426	MaterialBucketMap::iterator m =
1427	mMaterialBucketMap.find(qmesh->materialName);
1428	if (m != mMaterialBucketMap.end())
1429	{
1430	mbucket = m->second;
1431	}
1432	else
1433	{
1434	mbucket = new MaterialBucket(this, qmesh->materialName);
1435	mMaterialBucketMap[qmesh->materialName] = mbucket;
1436	}
1437	mbucket->assign(q);
1438	}
1439	//--------------------------------------------------------------------------
1440	void InstancedGeometry::LODBucket::build()
1441	{
1442	// Just pass this on to child buckets
1443
1444	for (MaterialBucketMap::iterator i = mMaterialBucketMap.begin();
1445	i != mMaterialBucketMap.end(); ++i)
1446	{
1447	i->second->build();
1448	}
1449	}
1450	//--------------------------------------------------------------------------
1451	void InstancedGeometry::LODBucket::addRenderables(RenderQueue* queue,
1452	uint8 group, Real camDistanceSquared)
1453	{
1454	// Just pass this on to child buckets
1455	MaterialBucketMap::iterator i, iend;
1456	iend = mMaterialBucketMap.end();
1457	int j=0;
1458	for (i = mMaterialBucketMap.begin(); i != iend; ++i)
1459	{
1460	i->second->addRenderables(queue, group, camDistanceSquared);
1461	j++;
1462	}
1463	}
1464	//--------------------------------------------------------------------------
1465	InstancedGeometry::LODBucket::MaterialIterator
1466	InstancedGeometry::LODBucket::getMaterialIterator(void)
1467	{
1468	return MaterialIterator(
1469	mMaterialBucketMap.begin(), mMaterialBucketMap.end());
1470	}
1471	//--------------------------------------------------------------------------
1472	void InstancedGeometry::LODBucket::dump(std::ofstream& of) const
1473	{
1474	of << "LOD Bucket " << mLod << std::endl;
1475	of << "------------------" << std::endl;
1476	of << "Distance: " << Math::Sqrt(mSquaredDistance) << std::endl;
1477	of << "Number of Materials: " << mMaterialBucketMap.size() << std::endl;
1478	for (MaterialBucketMap::const_iterator i = mMaterialBucketMap.begin();
1479	i != mMaterialBucketMap.end(); ++i)
1480	{
1481	i->second->dump(of);
1482	}
1483	of << "------------------" << std::endl;
1484
1485	}
1486	//--------------------------------------------------------------------------
1487	//--------------------------------------------------------------------------
1488	InstancedGeometry::MaterialBucket::MaterialBucket(LODBucket* parent,
1489	const String& materialName)
1490	: mParent(parent), mMaterialName(materialName),mLastIndex(0)
1491	{
1492	mMaterial = MaterialManager::getSingleton().getByName(mMaterialName);
1493	}
1494	//--------------------------------------------------------------------------
1495	InstancedGeometry::MaterialBucket::~MaterialBucket()
1496	{
1497	// delete
1498	for (GeometryBucketList::iterator i = mGeometryBucketList.begin();
1499	i != mGeometryBucketList.end(); ++i)
1500	{
1501	delete *i;
1502	}
1503	mGeometryBucketList.clear();
1504	// no need to delete queued meshes, these are managed in InstancedGeometry
1505
1506	}
1507	//--------------------------------------------------------------------------
1508
1509	void InstancedGeometry::MaterialBucket::assign(QueuedGeometry* qgeom)
1510	{
1511	// Look up any current geometry
1512	String formatString = getGeometryFormatString(qgeom->geometry);
1513	CurrentGeometryMap::iterator gi = mCurrentGeometryMap.find(formatString);
1514	bool newBucket = true;
1515	if (gi != mCurrentGeometryMap.end())
1516	{
1517	// Found existing geometry, try to assign
1518	newBucket = !gi->second->assign(qgeom);
1519	// Note that this bucket will be replaced as the 'current'
1520	// for this format string below since it's out of space
1521	}
1522	// Do we need to create a new one?
1523	if (newBucket)
1524	{
1525	GeometryBucket* gbucket = new GeometryBucket(this, formatString,
1526	qgeom->geometry->vertexData, qgeom->geometry->indexData);
1527	// Add to main list
1528	mGeometryBucketList.push_back(gbucket);
1529	// Also index in 'current' list
1530	mCurrentGeometryMap[formatString] = gbucket;
1531	if (!gbucket->assign(qgeom))
1532	{
1533	OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
1534	"Somehow we couldn't fit the requested geometry even in a "
1535	"brand new GeometryBucket!! Must be a bug, please report.",
1536	"InstancedGeometry::MaterialBucket::assign");
1537	}
1538	}
1539	}
1540	//--------------------------------------------------------------------------
1541	void InstancedGeometry::MaterialBucket::build()
1542	{
1543	mMaterial = MaterialManager::getSingleton().getByName(mMaterialName);
1544	if (mMaterial.isNull())
1545	{
1546	OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
1547	"Material '" + mMaterialName + "' not found.",
1548	"InstancedGeometry::MaterialBucket::build");
1549	}
1550	mMaterial->load();
1551	// tell the geometry buckets to build
1552
1553	for (GeometryBucketList::iterator i = mGeometryBucketList.begin();
1554	i != mGeometryBucketList.end(); ++i)
1555	{
1556	(*i)->build();
1557	}
1558	}
1559	//--------------------------------------------------------------------------
1560	void InstancedGeometry::MaterialBucket::addRenderables(RenderQueue* queue,
1561	uint8 group, Real camDistanceSquared)
1562	{
1563
1564	// Determine the current material technique
1565	mTechnique = mMaterial->getTechnique(
1566	mMaterial->getLodIndexSquaredDepth(camDistanceSquared));
1567	GeometryBucketList::iterator i, iend;
1568	iend = mGeometryBucketList.end();
1569	int j=0;
1570
1571	for (i = mGeometryBucketList.begin(); i != iend; ++i)
1572	{
1573	queue->addRenderable(*i, group);
1574	j++;
1575	}
1576
1577	}
1578	//--------------------------------------------------------------------------
1579	String InstancedGeometry::MaterialBucket::getGeometryFormatString(
1580	SubMeshLodGeometryLink* geom)
1581	{
1582	// Formulate an identifying string for the geometry format
1583	// Must take into account the vertex declaration and the index type
1584	// Format is (all lines separated by '\|'):
1585	// Index type
1586	// Vertex element (repeating)
1587	// source
1588	// semantic
1589	// type
1590	StringUtil::StrStreamType str;
1591
1592	str << geom->indexData->indexBuffer->getType() << "\|";
1593	const VertexDeclaration::VertexElementList& elemList =
1594	geom->vertexData->vertexDeclaration->getElements();
1595	VertexDeclaration::VertexElementList::const_iterator ei, eiend;
1596	eiend = elemList.end();
1597	for (ei = elemList.begin(); ei != eiend; ++ei)
1598	{
1599	const VertexElement& elem = *ei;
1600	str << elem.getSource() << "\|";
1601	str << elem.getSource() << "\|";
1602	str << elem.getSemantic() << "\|";
1603	str << elem.getType() << "\|";
1604	}
1605
1606	return str.str();
1607
1608	}
1609	//--------------------------------------------------------------------------
1610	InstancedGeometry::MaterialBucket::GeometryIterator
1611	InstancedGeometry::MaterialBucket::getGeometryIterator(void)
1612	{
1613	return GeometryIterator(
1614	mGeometryBucketList.begin(), mGeometryBucketList.end());
1615	}
1616	//--------------------------------------------------------------------------
1617	void InstancedGeometry::MaterialBucket::dump(std::ofstream& of) const
1618	{
1619	of << "Material Bucket " << mMaterialName << std::endl;
1620	of << "--------------------------------------------------" << std::endl;
1621	of << "Geometry buckets: " << mGeometryBucketList.size() << std::endl;
1622	for (GeometryBucketList::const_iterator i = mGeometryBucketList.begin();
1623	i != mGeometryBucketList.end(); ++i)
1624	{
1625	(*i)->dump(of);
1626	}
1627	of << "--------------------------------------------------" << std::endl;
1628
1629	}
1630	//--------------------------------------------------------------------------
1631	//--------------------------------------------------------------------------
1632	InstancedGeometry::GeometryBucket::GeometryBucket(MaterialBucket* parent,
1633	const String& formatString, const VertexData* vData,
1634	const IndexData* iData)
1635	: SimpleRenderable(),
1636	mParent(parent),
1637	mFormatString(formatString),
1638	mVertexData(0),
1639	mIndexData(0)
1640	{
1641	mBatch=mParent->getParent()->getParent()->getParent();
1642	if(!mBatch->getBaseSkeleton().isNull())
1643	setCustomParameter(0,Vector4(mBatch->getBaseSkeleton()->getNumBones(),0,0,0));
1644	//mRenderOperation=new RenderOperation();
1645	// Clone the structure from the example
1646	mVertexData = vData->clone(false);
1647
1648	mRenderOp.useIndexes = true;
1649	mRenderOp.indexData = new IndexData();
1650
1651	mRenderOp.indexData->indexCount = 0;
1652	mRenderOp.indexData->indexStart = 0;
1653	mRenderOp.vertexData = new VertexData();
1654	mRenderOp.vertexData->vertexCount = 0;
1655
1656	mRenderOp.vertexData->vertexDeclaration = vData->vertexDeclaration->clone();
1657	mIndexType = iData->indexBuffer->getType();
1658	// Derive the max vertices
1659	if (mIndexType == HardwareIndexBuffer::IT_32BIT)
1660	{
1661	mMaxVertexIndex = 0xFFFFFFFF;
1662	}
1663	else
1664	{
1665	mMaxVertexIndex = 0xFFFF;
1666	}
1667
1668
1669	size_t offset=0, tcOffset=0;
1670	unsigned short texCoordOffset=0;
1671	unsigned short texCoordSource=0;
1672	for(ushort i=0;i<mRenderOp.vertexData->vertexDeclaration->getElementCount();i++)
1673	{
1674
1675	if(mRenderOp.vertexData->vertexDeclaration->getElement(i)->getSemantic() == VES_TEXTURE_COORDINATES)
1676	{
1677	texCoordOffset++;
1678	texCoordSource=mRenderOp.vertexData->vertexDeclaration->getElement(i)->getSource();
1679	tcOffset=mRenderOp.vertexData->vertexDeclaration->getElement(i)->getOffset()+VertexElement::getTypeSize(
1680	mRenderOp.vertexData->vertexDeclaration->getElement(i)->getType());
1681	}
1682	offset+= VertexElement::getTypeSize(
1683	mRenderOp.vertexData->vertexDeclaration->getElement(i)->getType());
1684	}
1685
1686	mRenderOp.vertexData->vertexDeclaration->addElement(texCoordSource,tcOffset, VET_FLOAT1, VES_TEXTURE_COORDINATES,texCoordOffset);
1687
1688	mTexCoordIndex=texCoordOffset;
1689
1690
1691
1692	}
1693	//--------------------------------------------------------------------------
1694	InstancedGeometry::GeometryBucket::GeometryBucket(MaterialBucket* parent,
1695	const String& formatString,GeometryBucket* bucket)
1696	: SimpleRenderable(),
1697	mParent(parent),
1698	mFormatString(formatString),
1699	mVertexData(0),
1700	mIndexData(0)
1701	{
1702
1703	mBatch=mParent->getParent()->getParent()->getParent();
1704	if(!mBatch->getBaseSkeleton().isNull())
1705	setCustomParameter(0,Vector4(mBatch->getBaseSkeleton()->getNumBones(),0,0,0));
1706	bucket->getRenderOperation(mRenderOp);
1707	mVertexData=mRenderOp.vertexData;
1708	mIndexData=mRenderOp.indexData;
1709	setBoundingBox(AxisAlignedBox(-10000,-10000,-10000,
1710	10000,10000,10000));
1711
1712	}
1713	//--------------------------------------------------------------------------
1714	InstancedGeometry::GeometryBucket::~GeometryBucket()
1715	{
1716	}
1717
1718	//--------------------------------------------------------------------------
1719	Real InstancedGeometry::GeometryBucket::getBoundingRadius(void) const
1720	{
1721	return 1;
1722	}
1723	//--------------------------------------------------------------------------
1724	const MaterialPtr& InstancedGeometry::GeometryBucket::getMaterial(void) const
1725	{
1726	return mParent->getMaterial();
1727	}
1728	//--------------------------------------------------------------------------
1729	Technique* InstancedGeometry::GeometryBucket::getTechnique(void) const
1730	{
1731	return mParent->getCurrentTechnique();
1732	}
1733	//--------------------------------------------------------------------------
1734	void InstancedGeometry::GeometryBucket::getWorldTransforms(Matrix4* xform) const
1735	{
1736	// Should be the identity transform, but lets allow transformation of the
1737	// nodes the BatchInstances are attached to for kicks
1738	if(mBatch->getBaseSkeleton().isNull())
1739	{
1740	BatchInstance::ObjectsMap::iterator it,itbegin,itend,newit;
1741	itbegin=mParent->getParent()->getParent()->getInstancesMap().begin();
1742	itend=mParent->getParent()->getParent()->getInstancesMap().end();
1743
1744	for (it=itbegin;
1745	it!=itend;
1746	++it,++xform)
1747	{
1748
1749	*xform = it->second->mTransformation;
1750	}
1751	}
1752	else
1753	{
1754	BatchInstance::ObjectsMap::iterator it,itbegin,itend,newit;
1755	itbegin=mParent->getParent()->getParent()->getInstancesMap().begin();
1756	itend=mParent->getParent()->getParent()->getInstancesMap().end();
1757
1758	for (it=itbegin;
1759	it!=itend;
1760	++it)
1761	{
1762
1763	for(int i=0;i<it->second->mNumBoneMatrices;++i,++xform)
1764	{
1765	*xform = it->second->mBoneWorldMatrices[i];
1766	}
1767	}
1768
1769	}
1770
1771	}
1772	//--------------------------------------------------------------------------
1773	unsigned short InstancedGeometry::GeometryBucket::getNumWorldTransforms(void) const
1774	{
1775	if(mBatch->getBaseSkeleton().isNull())
1776	{
1777	BatchInstance* batch=mParent->getParent()->getParent();
1778	return static_cast<ushort>(batch->getInstancesMap().size());
1779	}
1780	else
1781	{
1782	BatchInstance* batch=mParent->getParent()->getParent();
1783	return static_cast<ushort>(
1784	mBatch->getBaseSkeleton()->getNumBones()*batch->getInstancesMap().size());
1785	}
1786	}
1787	//--------------------------------------------------------------------------
1788	const Quaternion& InstancedGeometry::GeometryBucket::getWorldOrientation(void) const
1789	{
1790	return Quaternion::IDENTITY;
1791	}
1792	//--------------------------------------------------------------------------
1793	const Vector3& InstancedGeometry::GeometryBucket::getWorldPosition(void) const
1794	{
1795	return Vector3::ZERO;
1796	}
1797	//--------------------------------------------------------------------------
1798	Real InstancedGeometry::GeometryBucket::getSquaredViewDepth(const Camera* cam) const
1799	{
1800	return mParent->getParent()->getSquaredDistance();
1801	}
1802	//--------------------------------------------------------------------------
1803	const LightList& InstancedGeometry::GeometryBucket::getLights(void) const
1804	{
1805	return mParent->getParent()->getParent()->getLights();
1806	}
1807	//--------------------------------------------------------------------------
1808	bool InstancedGeometry::GeometryBucket::getCastsShadows(void) const
1809	{
1810	return mParent->getParent()->getParent()->getCastShadows();
1811	}
1812	//--------------------------------------------------------------------------
1813	bool InstancedGeometry::GeometryBucket::assign(QueuedGeometry* qgeom)
1814	{
1815	// Do we have enough space?
1816	if (mRenderOp.vertexData->vertexCount + qgeom->geometry->vertexData->vertexCount
1817	> mMaxVertexIndex)
1818	{
1819	return false;
1820	}
1821
1822	mQueuedGeometry.push_back(qgeom);
1823	mRenderOp.vertexData->vertexCount += qgeom->geometry->vertexData->vertexCount;
1824	mRenderOp.indexData->indexCount += qgeom->geometry->indexData->indexCount;
1825
1826	return true;
1827	}
1828
1829	//--------------------------------------------------------------------------
1830	void InstancedGeometry::GeometryBucket::build()
1831	{
1832
1833
1834
1835	// Ok, here's where we transfer the vertices and indexes to the shared
1836	// buffers
1837	// Shortcuts
1838	VertexDeclaration* dcl = mRenderOp.vertexData->vertexDeclaration;
1839	VertexBufferBinding* binds =mVertexData->vertexBufferBinding;
1840
1841	// create index buffer, and lock
1842	mRenderOp.indexData->indexBuffer = HardwareBufferManager::getSingleton()
1843	.createIndexBuffer(mIndexType, mRenderOp.indexData->indexCount,
1844	HardwareBuffer::HBU_STATIC_WRITE_ONLY);
1845	uint32* p32Dest = 0;
1846	uint16* p16Dest = 0;
1847
1848	if (mIndexType == HardwareIndexBuffer::IT_32BIT)
1849	{
1850	p32Dest = static_cast<uint32*>(
1851	mRenderOp.indexData->indexBuffer->lock(HardwareBuffer::HBL_DISCARD));
1852	}
1853	else
1854	{
1855	p16Dest = static_cast<uint16*>(
1856	mRenderOp.indexData->indexBuffer->lock(HardwareBuffer::HBL_DISCARD));
1857	}
1858
1859	// create all vertex buffers, and lock
1860	ushort b;
1861	//ushort posBufferIdx = dcl->findElementBySemantic(VES_POSITION)->getSource();
1862
1863	std::vector<uchar*> destBufferLocks;
1864	std::vector<VertexDeclaration::VertexElementList> bufferElements;
1865
1866	for (b = 0; b < binds->getBufferCount(); ++b)
1867	{
1868
1869	size_t vertexCount = mRenderOp.vertexData->vertexCount;
1870
1871	HardwareVertexBufferSharedPtr vbuf =
1872	HardwareBufferManager::getSingleton().createVertexBuffer(
1873	dcl->getVertexSize(b),
1874	vertexCount,
1875	HardwareBuffer::HBU_STATIC_WRITE_ONLY);
1876	binds->setBinding(b, vbuf);
1877	uchar* pLock = static_cast<uchar*>(
1878	vbuf->lock(HardwareBuffer::HBL_DISCARD));
1879	destBufferLocks.push_back(pLock);
1880	// Pre-cache vertex elements per buffer
1881	bufferElements.push_back(dcl->findElementsBySource(b));
1882	mRenderOp.vertexData->vertexBufferBinding->setBinding(b,vbuf);
1883	}
1884
1885
1886	// Iterate over the geometry items
1887	size_t indexOffset = 0;
1888
1889	QueuedGeometryList::iterator gi, giend;
1890	giend = mQueuedGeometry.end();
1891
1892	// to generate the boundingBox
1893	Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax;
1894	Xmin=0;
1895	Ymin=0;
1896	Zmin=0;
1897	Xmax=0;
1898	Ymax=0;
1899	Zmax=0;
1900	QueuedGeometry* precGeom = *(mQueuedGeometry.begin());
1901	int index=0;
1902	if( mParent->getLastIndex()!=0)
1903	index=mParent->getLastIndex()+1;
1904
1905	for (gi = mQueuedGeometry.begin(); gi != giend; ++gi)
1906	{
1907
1908	QueuedGeometry* geom = *gi;
1909	if(precGeom->ID!=geom->ID)
1910	index++;
1911
1912	//create a new instanced object
1913	InstancedObject* instancedObject = mParent->getParent()->getParent()->isInstancedObjectPresent(index);
1914	if(instancedObject == NULL)
1915	{
1916	if(mBatch->getBaseSkeleton().isNull())
1917	{
1918	instancedObject=new InstancedObject(index);
1919	}
1920	else
1921	{
1922	instancedObject=new InstancedObject(index,mBatch->getBaseSkeletonInstance(),
1923	mBatch->getBaseAnimationState());
1924	}
1925	mParent->getParent()->getParent()->addInstancedObject(index,instancedObject);
1926
1927	}
1928	instancedObject->addBucketToList(this);
1929
1930
1931
1932	// Copy indexes across with offset
1933	IndexData* srcIdxData = geom->geometry->indexData;
1934	if (mIndexType == HardwareIndexBuffer::IT_32BIT)
1935	{
1936	// Lock source indexes
1937	uint32* pSrc = static_cast<uint32*>(
1938	srcIdxData->indexBuffer->lock(
1939	srcIdxData->indexStart,
1940	srcIdxData->indexCount * srcIdxData->indexBuffer->getIndexSize(),
1941	HardwareBuffer::HBL_READ_ONLY));
1942
1943	copyIndexes(pSrc, p32Dest, srcIdxData->indexCount, indexOffset);
1944	p32Dest += srcIdxData->indexCount;
1945	srcIdxData->indexBuffer->unlock();
1946	}
1947	else
1948	{
1949
1950	// Lock source indexes
1951	uint16* pSrc = static_cast<uint16*>(
1952	srcIdxData->indexBuffer->lock(
1953	srcIdxData->indexStart,
1954	srcIdxData->indexCount * srcIdxData->indexBuffer->getIndexSize(),
1955	HardwareBuffer::HBL_READ_ONLY));
1956
1957	copyIndexes(pSrc, p16Dest, srcIdxData->indexCount, indexOffset);
1958	p16Dest += srcIdxData->indexCount;
1959	srcIdxData->indexBuffer->unlock();
1960	}
1961
1962	// Now deal with vertex buffers
1963	// we can rely on buffer counts / formats being the same
1964	VertexData* srcVData = geom->geometry->vertexData;
1965	VertexBufferBinding* srcBinds = srcVData->vertexBufferBinding;
1966
1967	for (b = 0; b < binds->getBufferCount(); ++b)
1968	{
1969
1970	// lock source
1971	HardwareVertexBufferSharedPtr srcBuf =
1972	srcBinds->getBuffer(b);
1973	uchar* pSrcBase = static_cast<uchar*>(
1974	srcBuf->lock(HardwareBuffer::HBL_READ_ONLY));
1975	// Get buffer lock pointer, we'll update this later
1976	uchar* pDstBase = destBufferLocks[b];
1977	size_t bufInc = srcBuf->getVertexSize();
1978
1979	// Iterate over vertices
1980	float pSrcReal, pDstReal;
1981	Vector3 tmp;
1982
1983
1984
1985	for (size_t v = 0; v < srcVData->vertexCount; ++v)
1986	{
1987	//to know if the current buffer is the one with the buffer or not
1988	bool isTheBufferWithIndex=false;
1989	// Iterate over vertex elements
1990	VertexDeclaration::VertexElementList& elems =
1991	bufferElements[b];
1992	VertexDeclaration::VertexElementList::iterator ei;
1993
1994	for (ei = elems.begin(); ei != elems.end(); ++ei)
1995	{
1996	VertexElement& elem = *ei;
1997	elem.baseVertexPointerToElement(pSrcBase, &pSrcReal);
1998	elem.baseVertexPointerToElement(pDstBase, &pDstReal);
1999	if(elem.getSemantic()==VES_TEXTURE_COORDINATES && elem.getIndex()==mTexCoordIndex)
2000	{
2001	isTheBufferWithIndex=true;
2002	*pDstReal++=index;
2003	}
2004	else
2005	{
2006	switch (elem.getSemantic())
2007	{
2008	case VES_POSITION:
2009	tmp.x = *pSrcReal++;
2010	tmp.y = *pSrcReal++;
2011	tmp.z = *pSrcReal++;
2012	*pDstReal++ = tmp.x;
2013	*pDstReal++ = tmp.y;
2014	*pDstReal++ = tmp.z;
2015	if(tmp.x<Xmin)
2016	Xmin = tmp.x;
2017	if(tmp.y<Ymin)
2018	Ymin = tmp.y;
2019	if(tmp.z<Zmin)
2020	Zmin = tmp.z;
2021	if(tmp.x>Xmax)
2022	Xmax = tmp.x;
2023	if(tmp.y>Ymax)
2024	Ymax = tmp.y;
2025	if(tmp.z>Zmax)
2026	Zmax = tmp.z;
2027	default:
2028	// just raw copy
2029	memcpy(pDstReal, pSrcReal,
2030	VertexElement::getTypeSize(elem.getType()));
2031	break;
2032	};
2033
2034	}
2035
2036
2037	}
2038	if (isTheBufferWithIndex)
2039	pDstBase += bufInc+4;
2040	else
2041	pDstBase += bufInc;
2042	pSrcBase += bufInc;
2043
2044	}
2045
2046	// Update pointer
2047	destBufferLocks[b] = pDstBase;
2048	srcBuf->unlock();
2049
2050
2051	}
2052	indexOffset += geom->geometry->vertexData->vertexCount;
2053
2054
2055	precGeom=geom;
2056
2057	}
2058	mParent->setLastIndex(index);
2059	// Unlock everything
2060	mRenderOp.indexData->indexBuffer->unlock();
2061	for (b = 0; b < binds->getBufferCount(); ++b)
2062	{
2063	binds->getBuffer(b)->unlock();
2064	}
2065
2066	delete mVertexData;
2067	delete mIndexData;
2068
2069	mVertexData=mRenderOp.vertexData;
2070	mIndexData=mRenderOp.indexData;
2071	mBatch->getRenderOperationVector().push_back(&mRenderOp);
2072	setBoundingBox(AxisAlignedBox(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax));
2073	mAABB=AxisAlignedBox(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax);
2074
2075	}
2076	//--------------------------------------------------------------------------
2077	void InstancedGeometry::GeometryBucket::dump(std::ofstream& of) const
2078	{
2079	of << "Geometry Bucket" << std::endl;
2080	of << "---------------" << std::endl;
2081	of << "Format string: " << mFormatString << std::endl;
2082	of << "Geometry items: " << mQueuedGeometry.size() << std::endl;
2083	of << "---------------" << std::endl;
2084
2085	}
2086	//--------------------------------------------------------------------------
2087
2088	}
2089

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source: downloads/ogre/OgreMain/src/OgreInstancedGeometry.cpp @ 11

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