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source: trunk/VUT/Ogre/src/OgreVisibilityTerrainSceneManager.cpp @ 175

Revision 175, 24.4 KB checked in by mattausch, 19 years ago (diff)
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1	#include "OgreVisibilityTerrainSceneManager.h"
2	#include "OgreVisibilityOptionsManager.h"
3	#include <OgreMath.h>
4	#include <OgreIteratorWrappers.h>
5	#include <OgreRenderSystem.h>
6	#include <OgreCamera.h>
7	#include <OgreLogManager.h>
8	#include <OgreStringConverter.h>
9	#include <OgreEntity.h>
10	#include <OgreSubEntity.h>
11
12
13	namespace Ogre {
14
15	//-----------------------------------------------------------------------
16	VisibilityTerrainSceneManager::VisibilityTerrainSceneManager(
17	GtpVisibility::VisibilityManager *visManager):
18	mVisibilityManager(visManager),
19	mShowVisualization(false),
20	mRenderNodesForViz(false),
21	mRenderNodesContentForViz(false),
22	mVisualizeCulledNodes(false),
23	mLeavePassesInQueue(0),
24	mDelayRenderTransparents(true),
25	mUseDepthPass(false),
26	mRenderDepthPass(false),
27	mUseItemBuffer(false),
28	//mUseItemBuffer(true),
29	mRenderItemBuffer(false),
30	mCurrentEntityId(1),
31	mEnableDepthWrite(true),
32	mSkipTransparents(false),
33	mSavedShadowTechnique(SHADOWTYPE_NONE),
34	mRenderTransparentsForItemBuffer(false),
35	mExecuteVertexProgramForAllPasses(false)
36	{
37	mHierarchyInterface = new OctreeHierarchyInterface(this, mDestRenderSystem);
38
39	//mDisplayNodes = true;//mShowBoundingBoxes = true;//mShowBoxes = true;
40
41	// TODO: set maxdepth to reasonable value
42	mMaxDepth = 50;
43	}
44	//-----------------------------------------------------------------------
45	void VisibilityTerrainSceneManager::InitDepthPass()
46	{
47	MaterialPtr depthMat = MaterialManager::getSingleton().getByName("Visibility/DepthPass");
48
49	if (depthMat.isNull())
50	{
51	depthMat = MaterialManager::getSingleton().create(
52	"Visibility/DepthPass",
53	ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
54
55	mDepthPass = depthMat->getTechnique(0)->getPass(0);
56	mDepthPass->setColourWriteEnabled(false);
57	mDepthPass->setDepthWriteEnabled(true);
58	mDepthPass->setLightingEnabled(false);
59	}
60	else
61	{
62	mDepthPass = depthMat->getTechnique(0)->getPass(0);
63	}
64	}
65	//-----------------------------------------------------------------------
66	VisibilityTerrainSceneManager::~VisibilityTerrainSceneManager()
67	{
68	if (mHierarchyInterface)
69	{
70	delete mHierarchyInterface;
71	mHierarchyInterface = NULL;
72	}
73	}
74	//-----------------------------------------------------------------------
75	void VisibilityTerrainSceneManager::InitItemBufferPass()
76	{
77	MaterialPtr itemBufferMat = MaterialManager::getSingleton().
78	getByName("Visibility/ItemBufferPass");
79
80	if (itemBufferMat.isNull())
81	{
82	// Init
83	itemBufferMat = MaterialManager::getSingleton().create("Visibility/ItemBufferPass",
84	ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
85
86	mItemBufferPass = itemBufferMat->getTechnique(0)->getPass(0);
87	mItemBufferPass->setColourWriteEnabled(true);
88	mItemBufferPass->setDepthWriteEnabled(true);
89	mItemBufferPass->setLightingEnabled(true);
90	//mItemBufferPass->setLightingEnabled(false);
91	}
92	else
93	{
94	mItemBufferPass = itemBufferMat->getTechnique(0)->getPass(0);
95	}
96	//mItemBufferPass->setAmbient(1, 1, 0);
97	}
98	//-----------------------------------------------------------------------
99	void VisibilityTerrainSceneManager::PrepareVisualization(Camera *cam)
100	{
101	// add player camera for visualization purpose
102	try
103	{
104	Camera *c;
105	if ((c = getCamera("PlayerCam")) != NULL)
106	{
107	getRenderQueue()->addRenderable(c);
108	}
109	}
110	catch (...)
111	{
112	// ignore
113	}
114	for (BoxList::iterator it = mBoxes.begin(); it != mBoxes.end(); ++it)
115	{
116	getRenderQueue()->addRenderable(*it);
117	}
118	if (mRenderNodesForViz \|\| mRenderNodesContentForViz)
119	{
120	// HACK: change node material so it is better suited for visualization
121	MaterialPtr nodeMat = MaterialManager::getSingleton().getByName("Core/NodeMaterial");
122	nodeMat->setAmbient(1, 1, 0);
123	nodeMat->setLightingEnabled(true);
124	nodeMat->getTechnique(0)->getPass(0)->removeAllTextureUnitStates();
125
126	for (NodeList::iterator it = mVisible.begin(); it != mVisible.end(); ++it)
127	{
128	if (mRenderNodesForViz)
129	{
130	// render the leaf nodes
131	if (((it)->numAttachedObjects() > 0) && ((it)->numChildren() == 0) &&
132	(*it)->getAttachedObject(0)->getMovableType() == "Entity")
133	{
134	getRenderQueue()->addRenderable((*it));
135	}
136
137	// addbounding boxes instead of node itself
138	//(*it)->_addBoundingBoxToQueue(getRenderQueue());
139	}
140	if (mRenderNodesContentForViz)
141	{
142	(*it)->_addToRenderQueue(cam, getRenderQueue(), false);
143	}
144	}
145	}
146	}
147	//-----------------------------------------------------------------------
148	Pass VisibilityTerrainSceneManager::setPass(Pass pass)
149	{
150	// TODO: setting vertex program is not efficient
151	//Pass *usedPass = ((mRenderDepthPass && !pass->hasVertexProgram()) ? mDepthPass : pass);
152
153	// set depth fill pass if we currently do not make an aabb occlusion query
154	Pass *usedPass = (mRenderDepthPass && !mHierarchyInterface->IsBoundingBoxQuery() ?
155	mDepthPass : pass);
156
157	IlluminationRenderStage savedStage = mIlluminationStage;
158
159	// set illumination stage to NONE so no shadow material is used
160	// for depth pass or for occlusion query
161	if (mRenderDepthPass \|\| mHierarchyInterface->IsBoundingBoxQuery())
162	{
163	mIlluminationStage = IRS_NONE;
164	}
165
166	// --- set vertex program of current pass in order to set correct depth
167	if (mExecuteVertexProgramForAllPasses && mRenderDepthPass && pass->hasVertexProgram())
168	{
169	// add vertex program of current pass to depth pass
170	mDepthPass->setVertexProgram(pass->getVertexProgramName());
171
172	if (mDepthPass->hasVertexProgram())
173	{
174	const GpuProgramPtr& prg = mDepthPass->getVertexProgram();
175	// Load this program if not done already
176	if (!prg->isLoaded())
177	prg->load();
178	// Copy params
179	mDepthPass->setVertexProgramParameters(pass->getVertexProgramParameters());
180	}
181	}
182	else if (mDepthPass->hasVertexProgram())
183	{
184	mDepthPass->setVertexProgram("");
185	}
186
187
188	bool IsDepthWrite = usedPass->getDepthWriteEnabled();
189
190	// global option which enables / disables depth writes
191	if (!mEnableDepthWrite)
192	{
193	usedPass->setDepthWriteEnabled(false);
194	}
195	//else if (mIsItemBufferPass) {usedPass = mItemBufferPass;}
196
197	Pass *result = SceneManager::setPass(usedPass);
198
199	// reset depth write
200	if (!mEnableDepthWrite)
201	{
202	usedPass->setDepthWriteEnabled(IsDepthWrite);
203	}
204
205	// reset illumination stage
206	mIlluminationStage = savedStage;
207
208	return result;
209	}
210	//-----------------------------------------------------------------------
211	void VisibilityTerrainSceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
212	{
213	//-- show visible scene nodes and octree bounding boxes from last frame
214	if (mShowVisualization)
215	{
216	PrepareVisualization(cam);
217	}
218	else
219	{
220	// for hierarchical culling, we interleave identification
221	// and rendering of objects in _renderVisibibleObjects
222
223	// for the shadow pass we use only standard rendering
224	// because of low occlusion
225	if (mShadowTechnique == SHADOWTYPE_TEXTURE_MODULATIVE &&
226	mIlluminationStage == IRS_RENDER_TO_TEXTURE)
227	{
228	TerrainSceneManager::_findVisibleObjects(cam, onlyShadowCasters);
229	}
230	// only shadow casters will be rendered in shadow texture pass
231	// mHierarchyInterface->SetOnlyShadowCasters(onlyShadowCasters);
232	}
233
234
235	// -- delete lists stored for visualization
236	mVisible.clear();
237	mBoxes.clear();
238	}
239	//-----------------------------------------------------------------------
240	void VisibilityTerrainSceneManager::_renderVisibleObjects()
241	{
242	InitDepthPass(); // create material for depth pass
243	InitItemBufferPass(); // create material for item buffer pass
244
245	// save ambient light to reset later
246	ColourValue savedAmbient = mAmbientLight;
247
248	//-- apply standard rendering for some modes (e.g., visualization, shadow pass)
249
250	if (mShowVisualization \|\|
251	(mShadowTechnique == SHADOWTYPE_TEXTURE_MODULATIVE &&
252	mIlluminationStage == IRS_RENDER_TO_TEXTURE))
253	{
254	IlluminationRenderStage savedStage = mIlluminationStage;
255
256	if (mShowVisualization)
257	// disable illumination stage to prevent rendering shadows
258	mIlluminationStage = IRS_NONE;
259
260	// standard rendering for shadow maps because of performance
261	TerrainSceneManager::_renderVisibleObjects();
262
263	mIlluminationStage = savedStage;
264	}
265	else //-- the hierarchical culling algorithm
266	{
267	// don't render backgrounds for item buffer
268	if (mUseItemBuffer)
269	{
270	clearSpecialCaseRenderQueues();
271	getRenderQueue()->clear();
272	}
273
274	//-- hierarchical culling
275	// the objects of different layers (e.g., background, scene,
276	// overlay) must be identified and rendered one after another
277
278	//-- render all early skies
279	clearSpecialCaseRenderQueues();
280	addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
281	addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_EARLY);
282	setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
283
284	TerrainSceneManager::_renderVisibleObjects();
285
286
287	#ifdef GTP_VISIBILITY_MODIFIED_OGRE
288	// delete previously rendered content
289	_deleteRenderedQueueGroups();
290	#endif
291
292	//-- prepare queue for visible objects (i.e., all but overlay and skies late)
293	clearSpecialCaseRenderQueues();
294	addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_LATE);
295	addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
296	setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
297
298
299	// set all necessary parameters for
300	// hierarchical visibility culling and rendering
301	InitVisibilityCulling(mCameraInProgress);
302
303	/**
304	* the hierarchical culling algorithm
305	* for depth pass: we just find objects and update depth buffer
306	* for "delayed" rendering: we render some passes afterwards
307	* e.g., transparents, because they need front-to-back sorting
308	**/
309
310	mVisibilityManager->ApplyVisibilityCulling();
311
312	// delete remaining renderables from queue (all not in mLeavePassesInQueue)
313	#ifdef GTP_VISIBILITY_MODIFIED_OGRE
314	_deleteRenderedQueueGroups(mLeavePassesInQueue);
315	#endif
316
317	//-- reset parameters
318	mRenderDepthPass = false;
319	mRenderItemBuffer = false;
320	mSkipTransparents = false;
321	mLeavePassesInQueue = 0;
322	mShadowTechnique = mSavedShadowTechnique;
323
324
325	// add visible nodes found by the visibility culling algorithm
326	if (mUseDepthPass)
327	{
328	for (NodeList::iterator it = mVisible.begin(); it != mVisible.end(); ++it)
329	{
330	(*it)->_addToRenderQueue(mCameraInProgress, getRenderQueue(), false);
331	}
332	}
333
334	//-- now we can render all remaining queue objects
335	// used for depth pass, transparents, overlay
336	clearSpecialCaseRenderQueues();
337	TerrainSceneManager::_renderVisibleObjects();
338	}
339
340	// set the new render level index
341	TerrainRenderable::NextRenderLevelIndex();
342
343	// reset ambient light
344	setAmbientLight(savedAmbient);
345
346	getRenderQueue()->clear(); // finally clear render queue
347	//WriteLog(); // write out stats
348	}
349
350	//-----------------------------------------------------------------------
351	void VisibilityTerrainSceneManager::_updateSceneGraph(Camera* cam)
352	{
353	mVisibilityManager->GetCullingManager()->SetHierarchyInterface(mHierarchyInterface);
354	mHierarchyInterface->SetRenderSystem(mDestRenderSystem);
355
356	TerrainSceneManager::_updateSceneGraph(cam);
357	}
358	//-----------------------------------------------------------------------
359	bool VisibilityTerrainSceneManager::setOption(const String & key, const void * val)
360	{
361	if (key == "UseDepthPass")
362	{
363	mUseDepthPass = (static_cast<const bool >(val));
364	return true;
365	}
366	if (key == "PrepareVisualization")
367	{
368	mShowVisualization = (static_cast<const bool >(val));
369	return true;
370	}
371	if (key == "RenderNodesForViz")
372	{
373	mRenderNodesForViz = (static_cast<const bool >(val));
374	return true;
375	}
376	if (key == "RenderNodesContentForViz")
377	{
378	mRenderNodesContentForViz = (static_cast<const bool >(val));
379	return true;
380	}
381	if (key == "SkyBoxEnabled")
382	{
383	mSkyBoxEnabled = (static_cast<const bool >(val));
384	return true;
385	}
386	if (key == "SkyPlaneEnabled")
387	{
388	mSkyPlaneEnabled = (static_cast<const bool >(val));
389	return true;
390	}
391	if (key == "SkyDomeEnabled")
392	{
393	mSkyDomeEnabled = (static_cast<const bool >(val));
394	return true;
395	}
396	if (key == "VisualizeCulledNodes")
397	{
398	mVisualizeCulledNodes = (static_cast<const bool >(val));
399	return true;
400	}
401	if (key == "DelayRenderTransparents")
402	{
403	mDelayRenderTransparents = (static_cast<const bool >(val));
404	return true;
405	}
406
407	if (key == "DepthWrite")
408	{
409	mEnableDepthWrite = (static_cast<const bool >(val));
410	return true;
411	}
412	if (key == "UseItemBuffer")
413	{
414	mUseItemBuffer = (static_cast<const bool >(val));
415	return true;
416	}
417	if (key == "ExecuteVertexProgramForAllPasses")
418	{
419	mExecuteVertexProgramForAllPasses = (static_cast<const bool >(val));
420	return true;
421	}
422	if (key == "RenderTransparentsForItemBuffer")
423	{
424	mRenderTransparentsForItemBuffer = (static_cast<const bool >(val));
425	return true;
426	}
427
428	return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
429	setOption(key, val) \|\| TerrainSceneManager::setOption(key, val);
430	}
431	//-----------------------------------------------------------------------
432	bool VisibilityTerrainSceneManager::getOption(const String & key, void *val)
433	{
434	if (key == "NumHierarchyNodes")
435	{
436	* static_cast<unsigned int *>(val) = (unsigned int)mNumOctreeNodes;
437	return true;
438	}
439
440	return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
441	getOption(key, val) && TerrainSceneManager::getOption(key, val);
442	}
443	//-----------------------------------------------------------------------
444	bool VisibilityTerrainSceneManager::getOptionValues(const String & key,
445	StringVector &refValueList)
446	{
447	return TerrainSceneManager::getOptionValues( key, refValueList);
448	}
449	//-----------------------------------------------------------------------
450	bool VisibilityTerrainSceneManager::getOptionKeys(StringVector & refKeys)
451	{
452	return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
453	getOptionKeys(refKeys) \|\| TerrainSceneManager::getOptionKeys(refKeys);
454	}
455	//-----------------------------------------------------------------------
456	void VisibilityTerrainSceneManager::setVisibilityManager(GtpVisibility::
457	VisibilityManager *visManager)
458	{
459	mVisibilityManager = visManager;
460	}
461	//-----------------------------------------------------------------------
462	GtpVisibility::VisibilityManager *VisibilityTerrainSceneManager::getVisibilityManager( void )
463	{
464	return mVisibilityManager;
465	}
466	//-----------------------------------------------------------------------
467	void VisibilityTerrainSceneManager::WriteLog()
468	{
469	std::stringstream d;
470
471	d << "Depth pass: " << StringConverter::toString(mUseDepthPass) << ", "
472	<< "Delay transparents: " << StringConverter::toString(mDelayRenderTransparents) << ", "
473	<< "Use optimization: " << StringConverter::toString(mHierarchyInterface->GetTestGeometryForVisibleLeaves()) << ", "
474	<< "Algorithm type: " << mVisibilityManager->GetCullingManagerType() << ", "
475	<< "Hierarchy nodes: " << mNumOctreeNodes << ", "
476	<< "Traversed nodes: " << mHierarchyInterface->GetNumTraversedNodes() << ", "
477	<< "Rendered nodes: " << mHierarchyInterface->GetNumRenderedNodes() << ", "
478	<< "Query culled nodes: " << mVisibilityManager->GetCullingManager()->GetNumQueryCulledNodes() << ", "
479	<< "Frustum culled nodes: " << mVisibilityManager->GetCullingManager()->GetNumFrustumCulledNodes() << ", "
480	<< "Queries issued: " << mVisibilityManager->GetCullingManager()->GetNumQueriesIssued() << "\n";
481
482	LogManager::getSingleton().logMessage(d.str());
483	}
484	//-----------------------------------------------------------------------
485	void VisibilityTerrainSceneManager::renderObjects(
486	const RenderPriorityGroup::TransparentRenderablePassList& objs,
487	bool doLightIteration, const LightList* manualLightList)
488	{
489	// for correct rendering, transparents must be rendered after hierarchical culling
490	if (!mSkipTransparents)
491	{
492	OctreeSceneManager::renderObjects(objs, doLightIteration, manualLightList);
493	}
494	}
495	//-----------------------------------------------------------------------
496	bool VisibilityTerrainSceneManager::validatePassForRendering(Pass* pass)
497	{
498	// skip all but first pass if we are doing the depth pass
499	if ((mRenderDepthPass \|\| mRenderItemBuffer) && pass->getIndex() > 0)
500	{
501	return false;
502	}
503	return SceneManager::validatePassForRendering(pass);
504	}
505	//-----------------------------------------------------------------------
506	void VisibilityTerrainSceneManager::renderQueueGroupObjects(RenderQueueGroup* pGroup)
507	{
508	if (!mRenderItemBuffer)
509	{
510	TerrainSceneManager::renderQueueGroupObjects(pGroup);
511	return;
512	}
513
514	//-- item buffer
515
516	// Iterate through priorities
517	RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
518
519	while (groupIt.hasMoreElements())
520	{
521	RenderItemBuffer(groupIt.getNext());
522	}
523	}
524	//-----------------------------------------------------------------------
525	void VisibilityTerrainSceneManager::RenderItemBuffer(RenderPriorityGroup* pGroup)
526	{
527	// Do solids
528	RenderPriorityGroup::SolidRenderablePassMap solidObjs = pGroup->_getSolidPasses();
529
530	// ----- SOLIDS LOOP -----
531	RenderPriorityGroup::SolidRenderablePassMap::const_iterator ipass, ipassend;
532	ipassend = solidObjs.end();
533
534	for (ipass = solidObjs.begin(); ipass != ipassend; ++ipass)
535	{
536	// Fast bypass if this group is now empty
537	if (ipass->second->empty())
538	continue;
539
540	// Render only first pass
541	if (ipass->first->getIndex() > 0)
542	continue;
543
544	RenderPriorityGroup::RenderableList* rendList = ipass->second;
545
546	RenderPriorityGroup::RenderableList::const_iterator irend, irendend;
547	irendend = rendList->end();
548
549	for (irend = rendList->begin(); irend != irendend; ++irend)
550	{
551	std::stringstream d; d << "itembuffer, pass name: " <<
552	ipass->first->getParent()->getParent()->getName();
553
554	LogManager::getSingleton().logMessage(d.str());
555
556	RenderSingleObjectForItemBuffer(*irend, ipass->first);
557	}
558	}
559
560	// -- TRANSPARENT LOOP: must be handled differently
561
562	// transparents are treated either as solids or completely discarded
563	if (mRenderTransparentsForItemBuffer)
564	{
565	RenderPriorityGroup::TransparentRenderablePassList transpObjs =
566	pGroup->_getTransparentPasses();
567	RenderPriorityGroup::TransparentRenderablePassList::const_iterator
568	itrans, itransend;
569
570	itransend = transpObjs.end();
571	for (itrans = transpObjs.begin(); itrans != itransend; ++itrans)
572	{
573	// like for solids, render only first pass
574	if (itrans->pass->getIndex() == 0)
575	{
576	RenderSingleObjectForItemBuffer(itrans->renderable, itrans->pass);
577	}
578	}
579	}
580	}
581	//-----------------------------------------------------------------------
582	void VisibilityTerrainSceneManager::RenderSingleObjectForItemBuffer(Renderable rend, Pass pass)
583	{
584	static LightList nullLightList;
585
586	int col[4];
587
588	// -- create color code out of object id
589	col[0] = (rend->getId() >> 16) & 255;
590	col[1] = (rend->getId() >> 8) & 255;
591	col[2] = rend->getId() & 255;
592	// col[3] = 255;
593
594	//mDestRenderSystem->setColour(col[0], col[1], col[2], col[3]);
595
596	mItemBufferPass->setAmbient(ColourValue(col[0] / 255.0f,
597	col[1] / 255.0f,
598	col[2] / 255.0f, 1));
599
600	// set vertex program of current pass
601	if (mExecuteVertexProgramForAllPasses && pass->hasVertexProgram())
602	{
603	mItemBufferPass->setVertexProgram(pass->getVertexProgramName());
604
605	if (mItemBufferPass->hasVertexProgram())
606	{
607	const GpuProgramPtr& prg = mItemBufferPass->getVertexProgram();
608	// Load this program if not done already
609	if (!prg->isLoaded())
610	prg->load();
611	// Copy params
612	mItemBufferPass->setVertexProgramParameters(pass->getVertexProgramParameters());
613	}
614	}
615	else if (mItemBufferPass->hasVertexProgram())
616	{
617	mItemBufferPass->setVertexProgram("");
618	}
619
620	Pass *usedPass = setPass(mItemBufferPass);
621
622
623	// Render a single object, this will set up auto params if required
624	renderSingleObject(rend, usedPass, false, &nullLightList);
625	}
626	//-----------------------------------------------------------------------
627	GtpVisibility::VisibilityManager *VisibilityTerrainSceneManager::GetVisibilityManager()
628	{
629	return mVisibilityManager;
630	}
631	//-----------------------------------------------------------------------
632	void VisibilityTerrainSceneManager::InitVisibilityCulling(Camera *cam)
633	{
634	// reset culling manager stats
635	mVisibilityManager->GetCullingManager()->InitFrame(mVisualizeCulledNodes);
636
637	// save shadow technique. It will be reset after hierarchical culling
638	mSavedShadowTechnique = mShadowTechnique;
639
640	// render standard solids without shadows during hierarchical culling pass
641	if ((mShadowTechnique == SHADOWTYPE_STENCIL_ADDITIVE) \|\|
642	(mShadowTechnique == SHADOWTYPE_STENCIL_MODULATIVE))
643	{
644	mShadowTechnique = SHADOWTYPE_NONE;
645	}
646
647	// set depth pass flag before rendering
648	mRenderDepthPass = mUseDepthPass;
649
650	// item buffer needs full ambient lighting to use item colors as unique id
651	if (mUseItemBuffer)
652	{
653	mRenderItemBuffer = true;
654	setAmbientLight(ColourValue(1,1,1,1));
655	}
656
657
658	// set passes which are stored in render queue
659	// for rendering AFTER hierarchical culling, i.e., passes which need
660	// a special rendering order
661	mLeavePassesInQueue = 0;
662
663	if (!mUseDepthPass \|\| !mUseItemBuffer)
664	{
665	if (mShadowTechnique == SHADOWTYPE_STENCIL_ADDITIVE)
666	{
667	// TODO: remove this pass because it should be processed during hierarchical culling
668	mLeavePassesInQueue \|= RenderPriorityGroup::SOLID_PASSES_NOSHADOW;
669
670	mLeavePassesInQueue \|= RenderPriorityGroup::SOLID_PASSES_DECAL;
671	mLeavePassesInQueue \|= RenderPriorityGroup::SOLID_PASSES_DIFFUSE_SPECULAR;
672	mLeavePassesInQueue \|= RenderPriorityGroup::TRANSPARENT_PASSES;
673
674	// just render ambient stuff
675	mIlluminationStage = IRS_AMBIENT;
676	}
677
678	if (mShadowTechnique == SHADOWTYPE_STENCIL_MODULATIVE)
679	{
680	mLeavePassesInQueue \|= RenderPriorityGroup::SOLID_PASSES_NOSHADOW;
681	mLeavePassesInQueue \|= RenderPriorityGroup::TRANSPARENT_PASSES;
682	}
683
684	// transparents should be rendered after hierarchical culling to
685	// provide front-to-back ordering
686	if (mDelayRenderTransparents)
687	{
688	mLeavePassesInQueue \|= RenderPriorityGroup::TRANSPARENT_PASSES;
689	}
690	}
691
692	// skip rendering transparents in the hierarchical culling
693	// (because they will be rendered afterwards)
694	mSkipTransparents = mUseDepthPass \|\|
695	(mLeavePassesInQueue & RenderPriorityGroup::TRANSPARENT_PASSES);
696
697	// -- initialise interface for rendering traversal of the hierarchy
698	mHierarchyInterface->SetHierarchyRoot(mOctree);
699
700	// possible two cameras (one for culling, one for rendering)
701	mHierarchyInterface->InitTraversal(mCameraInProgress,
702	mCullCamera ? getCamera("CullCamera") : NULL,
703	mLeavePassesInQueue);
704
705	//std::stringstream d; d << "leave passes in queue: " << mLeavePassesInQueue;LogManager::getSingleton().logMessage(d.str());
706	}
707	//-----------------------------------------------------------------------
708	OctreeHierarchyInterface *VisibilityTerrainSceneManager::GetHierarchyInterface()
709	{
710	return mHierarchyInterface;
711	}
712	//-----------------------------------------------------------------------
713	void VisibilityTerrainSceneManager::endFrame()
714	{
715	TerrainRenderable::ResetRenderLevelIndex();
716	}
717	//-----------------------------------------------------------------------
718	/void VisibilityTerrainSceneManager::renderBasicQueueGroupObjects(RenderQueueGroup pGroup)
719	{
720	// Basic render loop: Iterate through priorities
721	RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
722
723	while (groupIt.hasMoreElements())
724	{
725	RenderPriorityGroup* pPriorityGrp = groupIt.getNext();
726
727	// Sort the queue first
728	pPriorityGrp->sort(mCameraInProgress);
729
730	// Do solids
731	// TODO: render other solid passes for shadows
732	renderObjects(pPriorityGrp->_getSolidPassesNoShadows(), true);
733
734	// do solid passes no shadows if addititive stencil shadows
735	if (mSavedShadowTechnique == SHADOWTYPE_STENCIL_ADDITIVE)
736	renderObjects(pPriorityGrp->_getSolidPassesNoShadows(), true);
737
738	// Do transparents
739	renderObjects(pPriorityGrp->_getTransparentPasses(), true);
740
741
742	}// for each priority
743	}
744	*/
745	//-----------------------------------------------------------------------
746	Entity* VisibilityTerrainSceneManager::createEntity(const String& entityName,
747	const String& meshName)
748	{
749	Entity *ent = SceneManager::createEntity(entityName, meshName);
750
751	for (int i = 0; i < (int)ent->getNumSubEntities(); ++i)
752	{
753	ent->getSubEntity(i)->setId(mCurrentEntityId);
754	}
755
756	// increase counter of entity id values
757	++ mCurrentEntityId;
758
759	return ent;
760	}
761	} // namespace Ogre

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