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source: GTP/trunk/Lib/Illum/IllumModule/OgreIllumModule/src/RenderingRuns/OgreCubeMapRenderingRun.cpp @ 2180

Revision 2180, 7.4 KB checked in by szirmay, 18 years ago (diff)

Line
1	#include "OgreCubeMapRenderingRun.h"
2	#include "OgreIlluminationManager.h"
3
4
5
6	OgreCubeMapRenderingRun::OgreCubeMapRenderingRun(OgreSharedRuns* sharedRuns,
7	String name,
8	unsigned long startFrame,
9	unsigned long updateInterval,
10	unsigned int resolution,
11	bool useDistCalc,
12	bool useFaceAngleCalc,
13	float distTolerance,
14	float angleTolerance,
15	bool updateAllFace,
16	bool renderSelf,
17	bool renderEnvironment,
18	String selfMaterial,
19	String environmentMaterial,
20	bool getMinMax,
21	RenderingRunType cubemapRunType)
22	:CubeMapRenderingRun(startFrame, updateInterval, resolution, useDistCalc, useFaceAngleCalc, distTolerance, angleTolerance, updateAllFace, renderSelf, renderEnvironment)
23	, OgreRenderingRun(startFrame, updateInterval)
24	, RenderingRun(startFrame, updateInterval)
25
26	{
27	this->getMinMax = getMinMax;
28	this->cubemapRunType = cubemapRunType;
29	this->sharedRuns = sharedRuns;
30	this->name = name;
31	this->selfMaterial = selfMaterial;
32	this->environmentMaterial = environmentMaterial;
33
34	if(environmentMaterial == "")
35	useEnvMaterial = false;
36	else
37	useEnvMaterial = true;
38
39	if(selfMaterial == "")
40	useSelfMaterial = false;
41	else
42	useSelfMaterial = true;
43
44
45	createCubeMap();
46	}
47
48	void OgreCubeMapRenderingRun::createCubeMap()
49	{
50	ColourValue clearColor = ColourValue::Black;
51	clearColor.a = 0.0;
52	cubemapTexture = createCubeRenderTexture(name,
53	sharedRuns->getRootPosition(),
54	resolution,
55	PF_FLOAT16_RGBA,
56	//PF_R8G8B8A8,
57	0,
58	clearColor);
59	}
60
61	void OgreCubeMapRenderingRun::updateCubeFace(int facenum)
62	{
63	OgreSharedRuns* root = (OgreSharedRuns*) sharedRuns->getRoot(cubemapRunType);
64	SceneManager* sm = Ogre::Root::getSingleton()._getCurrentSceneManager();
65	RenderQueue* rq = sm->getRenderQueue();
66
67	RenderTarget* rt = cubemapTexture->getBuffer(facenum, 0).getPointer()->getRenderTarget();
68	Camera* cam = rt->getViewport(0)->getCamera();
69	Vector3 center = sharedRuns->getRootPosition(cubemapRunType);
70	cam->setPosition(center);
71
72	bool renderAllwithOwnColor = false;
73
74	if(renderSelf && renderEnvironment && !useSelfMaterial && !useEnvMaterial)
75	renderAllwithOwnColor = true;
76
77	if(!renderAllwithOwnColor)
78	{
79	root->hide();
80
81	if(renderEnvironment)
82	{
83	if(useEnvMaterial)
84	{
85	/////////////////////////////////////////////////////////////////
86	//// DEBUG
87	/////////////////////////////////////////////////////////////////
88	/* Camera* camm = new Camera("tempCAm", sm);
89	TexturePtr texPtr = Ogre::TextureManager::getSingleton().createManual( "tempRT",
90	"default",
91	TEX_TYPE_2D,
92	256,
93	256,
94	0,
95	0,
96	PF_FLOAT16_RGBA,
97	TU_RENDERTARGET);
98	camm->setPosition(0,50,0);
99	camm->setAspectRatio(1);
100	camm->setFOVy(Radian(Degree(90)));
101	camm->setNearClipDistance(0.1);
102	camm->setFarClipDistance(1000);
103	Texture* result = texPtr.getPointer();
104	HardwarePixelBuffer* hpb = (result->getBuffer()).getPointer();
105	RenderTarget* rt = hpb->getRenderTarget(0);
106	Viewport* v = rt->addViewport(camm);
107	v->setOverlaysEnabled(false);
108	rt->setAutoUpdated(false);
109
110	int cnt = sm->_findVisibleObjectsOC(camm, v, false, true, false);
111	int cnt2 = sm->_findVisibleObjectsOC(cam, v, false, true, false);
112	int cnt3 = sm->_findVisibleObjectsOC(camm, cam->getViewport(), false, true, false);
113	int cnt3 = sm->_findVisibleObjectsOC(cam, cam->getViewport(), false, true, false);*/
114	///////////////////////////////////////////////////
115	setMaterialForVisibles(environmentMaterial, cam);
116	//sm->_queueSkiesForRendering(cam);
117	}
118	else
119	{
120	//sm->_findVisibleObjectsOC(cam, rt->getViewport(0), false, false, false);
121	sm->_findVisibleObjects(cam, false);
122	sm->_queueSkiesForRendering(cam);
123	sm->setFindVisibleObjects(false);
124	}
125	}
126	else
127	{
128	rq->clear();
129	sm->setFindVisibleObjects(false);
130	}
131
132	if(renderSelf)
133	{
134	root->restoreVisibility();
135	if(useSelfMaterial)
136	root->setMaterial(selfMaterial);
137	root->addRenderablesToQueue(rq);
138	}
139	}
140
141
142
143	rt->update();
144
145	//rt->writeContentsToFile( "cubeLayer" + StringConverter::toString(cubemapRunType)+ "face" + StringConverter::toString(facenum) + ".dds");
146
147	if(!renderAllwithOwnColor)
148	{
149	if(renderEnvironment && useEnvMaterial)
150	restoreMaterials();
151	else
152	sm->setFindVisibleObjects(true);
153
154	if(!renderSelf)
155	root->restoreVisibility();
156	else if(useSelfMaterial)
157	root->restoreMaterial();
158	}
159
160	if(facenum == 5 && getMinMax)
161	{
162	getCubeMapMinMax();
163	this->sharedRuns->runUpdated(cubemapRunType, this);
164	}
165	}
166
167	void OgreCubeMapRenderingRun::getCubeMapMinMax()
168	{
169	unsigned int buffersize = resolution * resolution * 4;
170	float* floatbuffer = new float[buffersize];
171	PixelBox lockBox(resolution, resolution, 1, PF_FLOAT32_RGBA, floatbuffer);
172
173	float minX = 0;
174	float minY = 0;
175	float minZ = 0;
176	float minW = 0;
177	float maxX = 0;
178	float maxY = 0;
179	float maxZ = 0;
180	float maxW = 0;
181
182	bool first = true;
183
184	for(int iFace = 0; iFace <6 ; iFace++)
185	{
186	this->cubemapTexture->getBuffer(iFace,0)->blitToMemory(lockBox);
187
188	for(unsigned int i = 0; i < buffersize; i+= 4)
189	{
190	float x = floatbuffer[i];
191	float y = floatbuffer[i + 1];
192	float z = floatbuffer[i + 2];
193	float w = floatbuffer[i + 3];
194
195	if(first && w != 0)
196	{
197	minX = x;
198	minY = y;
199	minZ = z;
200	minW = w;
201	maxX = x;
202	maxY = y;
203	maxZ = z;
204	maxW = w;
205
206	first = false;
207	}
208	else if( /(x x + y * y + z * z + w * w) != 0*/ w != 0)
209	{
210	if(x < minX)minX = x;
211	if(y < minY)minY = y;
212	if(z < minZ)minZ = z;
213	if(w < minW)minW = w;
214
215	if(x > maxX)maxX = x;
216	if(y > maxY)maxY = y;
217	if(z > maxZ)maxZ = z;
218	if(w > maxW)maxW = w;
219
220	}
221	}
222	}
223
224	min.x = minX; min.y = minY; min.z = minZ; min.w = minW;
225	max.x = maxX; max.y = maxY; max.z = maxZ; max.w = maxW;
226
227
228	delete[] floatbuffer;
229	}
230
231	bool OgreCubeMapRenderingRun::faceNeedsUpdate(int facenum)
232	{
233	if(useDistCalc \|\| useFaceAngleCalc)
234	{
235	float chance1 = 1.0;
236	float chance2 = 1.0;
237
238	Camera* mainCamera = OgreIlluminationManager::getSingleton().getMainCamera();
239
240	if(useDistCalc)
241	{
242	Vector3 cubemapPosition = sharedRuns->getRootPosition(cubemapRunType);
243	float objradius = sharedRuns->getRootBoundingSphere(cubemapRunType).getRadius();
244	float fov = mainCamera->getFOVy().valueRadians() / 2.0;
245	float dist = (cubemapPosition - mainCamera->getPosition()).length();
246	float vangle = Math::ASin( objradius / dist).valueRadians();
247	float angleratio = vangle / fov;
248	chance1 = Math::Pow(angleratio, 1.0 / distTolerance);
249	}
250
251	if(useFaceAngleCalc)
252	{
253	Vector3 faceDir = getCubeMapFaceDirection(facenum);
254	Vector3 cameraDir = mainCamera->getDirection();
255	float angle = faceDir.dotProduct(-1 * cameraDir);
256	float facingforward = (angle + 1) / 2.0;
257	chance2 = Math::Pow(facingforward, 1.0 / angleTolerance);
258	}
259
260	float dice = Math::UnitRandom();
261	float chance = chance1 * chance2;
262
263	if(dice < chance)
264	{
265	return true;
266	}
267	else
268	{
269	return false;
270	}
271	}
272
273	return true;
274	}

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