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source: GTP/trunk/Lib/Illum/IllumModule/OgreIllumModule/src/OgreRenderingRun.cpp @ 1351

Revision 1351, 10.5 KB checked in by szirmay, 18 years ago (diff)

Line
1	#include "OgreRenderingrun.h"
2
3	MovablePlane* OgreRenderingRun::fullScreenQuad = NULL;
4	Entity* OgreRenderingRun::fullScreenQuadEntity = NULL;
5	SceneNode* OgreRenderingRun::fullScreenQuadNode = NULL;
6
7	class MaterialSetVisitor : public QueuedRenderableVisitor
8	{
9	private:
10	String materialName;
11	std::map<Renderable, String> visibleObjects;
12	public:
13
14	MaterialSetVisitor(String& materialName, std::map<Renderable, String> visibleObjects)
15	{
16	this->materialName = materialName;
17	this->visibleObjects = visibleObjects;
18	}
19
20	void visit(const Renderable* r)
21	{
22	Renderable* rend = (Renderable*) r; //sorry for removing the const
23
24	if( visibleObjects->count(rend) == 0)
25	{
26	(*visibleObjects)[rend] = rend->getMaterial().getPointer()->getName();
27	rend->setMaterialName(materialName);
28	}
29	}
30	bool visit(const Pass* p){return true;}
31	void visit(const RenderablePass* rp){}
32
33	};
34
35	Vector3 OgreRenderingRun::getCubeMapFaceDirection(unsigned char faceId)
36	{
37	switch(faceId)
38	{
39	case 0: //positive X
40	return Vector3(1,0,0);
41	case 1: //negative X
42	return Vector3(-1,0,0);
43	case 2: //positiove Y
44	return Vector3(0,1,0);
45	case 3: //negative Y
46	return Vector3(0,-1,0);
47	case 4: //positiove Z
48	return Vector3(0,0,-1);
49	case 5: //negative Z
50	return Vector3(0,0,1);
51	default:
52	return Vector3(0,0,0);
53	}
54	}
55
56	Texture* OgreRenderingRun::createCubeRenderTexture(String name, const Vector3 position, unsigned int resolution, PixelFormat format, int numMips, ColourValue clearColor)
57	{
58	//create texture
59	TexturePtr texPtr = Ogre::TextureManager::getSingleton().createManual( name,
60	"default",
61	TEX_TYPE_CUBE_MAP,
62	resolution,
63	resolution,
64	0,
65	numMips,
66	format,
67	TU_RENDERTARGET);
68	Texture* result = texPtr.getPointer();
69
70	//add viewports to faces
71	for(unsigned int i = 0; i < 6; i++)
72	{
73	Camera* cam = Root::getSingleton()._getCurrentSceneManager()
74	->createCamera(name + "CUBEMAPFACE_" + StringConverter::toString(i) + "_CAMERA");
75
76	cam->setPosition(position);
77	cam->setAspectRatio(1);
78	cam->setFOVy(Radian(Degree(90)));
79	cam->setNearClipDistance(0.1);
80
81	//set camera orientation
82	switch(i)
83	{
84	case 2:
85	cam->setOrientation(Quaternion(Radian(Degree(90)),Vector3(1,0,0)));
86	break;
87	case 3:
88	cam->setOrientation(Quaternion(Radian(Degree(90)),Vector3(-1,0,0)));
89	break;
90	default:
91	cam->setDirection(getCubeMapFaceDirection(i));
92	break;
93	}
94
95	HardwarePixelBuffer* hpb = (result->getBuffer(i, 0)).getPointer();
96	RenderTarget* rt = hpb->getRenderTarget(0);
97	Viewport* v = rt->addViewport(cam);
98	v->setOverlaysEnabled(false);
99	rt->setAutoUpdated(false);
100
101	Root::getSingleton().getRenderSystem()->_setViewport(v);
102	Root::getSingleton().getRenderSystem()->clearFrameBuffer( FBT_COLOUR, clearColor);
103	}
104
105	return result;
106
107	}
108
109	void OgreRenderingRun::setMaterialForRenderables(String& materialName, RenderQueue* rq)
110	{
111	RenderQueue::QueueGroupIterator queueIt = rq->_getQueueGroupIterator();
112
113	while (queueIt.hasMoreElements())
114	{
115	RenderQueueGroup* pGroup = queueIt.getNext();
116
117	RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
118
119	while (groupIt.hasMoreElements())
120	{
121	RenderPriorityGroup* pPriorityGrp = groupIt.getNext();
122	const QueuedRenderableCollection& solids = pPriorityGrp->getSolidsBasic();
123	const QueuedRenderableCollection& transparents = pPriorityGrp->getTransparents();
124	MaterialSetVisitor visitor(materialName, &visibleObjects);
125	solids.acceptVisitor(&visitor, QueuedRenderableCollection::OM_PASS_GROUP);
126	transparents.acceptVisitor(&visitor, QueuedRenderableCollection::OM_SORT_ASCENDING);
127	}
128	}
129
130	//refill renderqueue
131	rq->clear();
132
133	std::map<Renderable*, String>::iterator it = visibleObjects.begin();
134	std::map<Renderable*, String>::iterator itend = visibleObjects.end();
135
136	while(it != itend)
137	{
138	rq->addRenderable((*it).first);
139	it++;
140	}
141
142	SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
143	sm->setFindVisibleObjects(false);
144	}
145
146	void OgreRenderingRun::setMaterialForVisibles(String& materialName, Camera* cam, bool shadowcastersonly)
147	{
148	SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
149
150	RenderQueue* rq = sm->getRenderQueue();
151	rq->clear();
152
153	RenderQueue::QueueGroupIterator groupIter = rq->_getQueueGroupIterator();
154	while (groupIter.hasMoreElements())
155	{
156	RenderQueueGroup* g = groupIter.getNext();
157	g->defaultOrganisationMode();
158	}
159
160	sm->_findVisibleObjects (cam, shadowcastersonly);
161
162	setMaterialForRenderables(materialName, rq);
163	}
164
165	void OgreRenderingRun::restoreMaterials()
166	{
167	std::map<Renderable*, String>::iterator it = visibleObjects.begin();
168	std::map<Renderable*, String>::iterator itend = visibleObjects.end();
169
170	while(it != itend)
171	{
172	((it).first)->setMaterialName((it).second);
173	it++;
174	}
175
176	visibleObjects.clear();
177
178	SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
179	sm->setFindVisibleObjects(true);
180	}
181
182	void OgreRenderingRun::renderFullscreenQuad(String materialName, RenderTarget* target)
183	{
184	SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
185
186	if(fullScreenQuad == NULL)
187	{
188	fullScreenQuad = new MovablePlane("PASS_FULLSCREENQUAD_PLANE");
189	fullScreenQuad->d = 0;
190	fullScreenQuad->normal = Vector3::UNIT_Z;
191	MeshManager::getSingleton().createPlane("PASS_FULLSCREENQUAD_MESH",
192	ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
193	*fullScreenQuad, 2, 2,
194	1, 1, true, 1, 1, 1, Vector3::UNIT_Y);
195	fullScreenQuadEntity = sm->createEntity( "PASS_FULLSCREENQUAD_ENTITY", "PASS_FULLSCREENQUAD_MESH" );
196	sm->getRootSceneNode()->attachObject(fullScreenQuadEntity);
197	fullScreenQuadEntity->setVisible(false);
198	}
199
200	fullScreenQuadEntity->setMaterialName(materialName);
201	sm->getRenderQueue()->clear();
202	sm->getRenderQueue()->addRenderable(fullScreenQuadEntity->getSubEntity(0));
203	sm->setFindVisibleObjects(false);
204	target->update();
205	sm->setFindVisibleObjects(true);
206	}
207
208	void OgreRenderingRun::renderFullscreenGrid(String& materialName, RenderTarget* rt, int width, int height)
209	{
210	SceneManager* sm = Root::getSingleton()._getCurrentSceneManager();
211
212	if(this->fullscreenGrid == NULL)
213	{
214	MeshPtr mesh = MeshManager::getSingleton().createManual("FullScreenGrid",ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
215	SubMesh* subMesh = mesh->createSubMesh();
216
217	mesh->sharedVertexData = new VertexData();
218	VertexData* vertexData = mesh->sharedVertexData;
219
220	// define the vertex format
221	VertexDeclaration* vertexDecl = vertexData->vertexDeclaration;
222	size_t currOffset = 0;
223	// positions
224	vertexDecl->addElement(0, currOffset, VET_FLOAT3, VES_POSITION);
225	currOffset += VertexElement::getTypeSize(VET_FLOAT3);
226
227	// allocate the vertex buffer
228	vertexData->vertexCount = width * height;
229	HardwareVertexBufferSharedPtr vBuf = HardwareBufferManager::getSingleton().createVertexBuffer(vertexDecl->getVertexSize(0), vertexData->vertexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
230	VertexBufferBinding* binding = vertexData->vertexBufferBinding;
231	binding->setBinding(0, vBuf);
232	float* pVertex = static_cast<float*>(vBuf->lock(HardwareBuffer::HBL_DISCARD));
233
234	// allocate index buffer
235	subMesh->indexData->indexCount = 6 * (width - 1) * (height - 1);
236	subMesh->indexData->indexBuffer = HardwareBufferManager::getSingleton().createIndexBuffer(HardwareIndexBuffer::IT_16BIT, subMesh->indexData->indexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
237	HardwareIndexBufferSharedPtr iBuf = subMesh->indexData->indexBuffer;
238	unsigned short* pIndices = static_cast<unsigned short*>(iBuf->lock(HardwareBuffer::HBL_DISCARD));
239
240	unsigned short wVerticeIndex = 0 ;
241
242
243	for( int j = 0; j < height; j++ )
244	{
245	for( int i = 0; i < width; i++ )
246	{ //positions
247	float x = ((float)i + 0.5) / (float) width;
248	float y = ((float)j + 0.5) / (float) height;
249	*pVertex++ = x;
250	*pVertex++ = y;
251	*pVertex++ = 0;
252
253	//indexes
254	if( j < height - 1 && i < width -1 )
255	{
256	pIndices++ = j width + i;
257	pIndices++ = (j + 1) width + i;
258	pIndices++ = j width + i + 1;
259	pIndices++ = j width + i + 1;
260	pIndices++ = (j + 1) width + i;
261	pIndices++ = (j + 1) width + i + 1;
262	}
263
264	}
265	}
266
267	// Unlock
268	vBuf->unlock();
269	iBuf->unlock();
270	// Generate face list
271	subMesh->useSharedVertices = true;
272
273	// this line makes clear the mesh is loaded (avoids memory leaks)
274	mesh->load();
275
276	fullscreenGrid = sm->createEntity("FullScreenGridEntity", "FullScreenGrid");
277	SceneNode* n = sm->getRootSceneNode()->createChildSceneNode("FullScreenGridNode");
278	n->attachObject(fullscreenGrid);
279	fullscreenGrid->setVisible(false);
280	}
281
282	fullscreenGrid->setMaterialName(materialName);
283
284	sm->getRenderQueue()->clear();
285	sm->getRenderQueue()->addRenderable(fullscreenGrid->getSubEntity(0));
286	sm->setFindVisibleObjects(false);
287	rt->update();
288	sm->setFindVisibleObjects(true);
289
290	}
291
292	void OgreRenderingRun::renderPixelSprites(String& materialName, RenderTarget* rt, int width, int height)
293	{
294	SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
295
296	if(pixelSprites == 0)
297	{
298	int resolutionX = width;
299	int resolutionY = height;
300	pixelSprites = new BillboardSet(spriteSetName, resolutionX * resolutionY, true);
301	pixelSprites->setBillboardsInWorldSpace(true);
302	pixelSprites->setCullIndividually(false);
303	pixelSprites->setPointRenderingEnabled(true);
304	//pixelSprites->setDefaultDimensions(1.0 / (float) resolutionX, 1.0 / resolutionY);
305	pixelSprites->beginBillboards();
306	for(int i = 0; i < resolutionX; i++)
307	{
308	for(int j = 0; j < resolutionY; j++)
309	{
310	Billboard bb( Vector3(
311	( (float)i + 0.5 )/ (float) resolutionX, //position x
312	( (float)j + 0.5 )/ (float) resolutionY, //position y
313	0),
314	pixelSprites);
315	bb.setDimensions(1.0 / (float) resolutionX, 1.0 / resolutionY);
316	pixelSprites->injectBillboard(bb);
317	}
318	}
319	pixelSprites->endBillboards();
320
321	sm->getRootSceneNode()->attachObject(pixelSprites);
322
323	pixelSprites->setVisible(false);
324	}
325
326	pixelSprites->setMaterialName(materialName);
327
328	sm->getRenderQueue()->clear();
329	sm->getRenderQueue()->addRenderable(pixelSprites);
330	sm->setFindVisibleObjects(false);
331	rt->update();
332	sm->setFindVisibleObjects(true);
333
334	}
335

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