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source: GTP/trunk/Lib/Illum/IllumModule/OgreIllumModule/src/RenderingRuns/OgrePMWeightComputeRenderingRun.cpp @ 2218

Revision 2218, 7.1 KB checked in by szirmay, 17 years ago (diff)

Line
1	#include "OgrePMWeightComputeRenderingRun.h"
2	#include "OgreIlluminationManager.h"
3	#include "OgrePMEntryPointMapRenderingRun.h"
4	#include "OgreDepthShadowMapRenderingRun.h"
5
6	OgrePMWeightComputeRenderingRun::OgrePMWeightComputeRenderingRun(String name, String LightName)
7	: OgreRenderingRun(1, 1)
8	, RenderingRun(1, 1)
9	{
10	this->name = name;
11	weights = 0;
12
13	this->light = Root::getSingleton()._getCurrentSceneManager()->getLight(LightName);
14	createWeightMap();
15
16	OgreIlluminationManager::getSingleton().createGlobalRun(ILLUMRUN_PM_ENTRYPOINTMAP);
17	}
18
19	void OgrePMWeightComputeRenderingRun::createWeightMap()
20	{
21
22	unsigned int entryPointCnt = OgreIlluminationManager::getSingleton().getPathMapEntryPoints().size();
23	int width = entryPointCnt / 4096;
24	int height = 4096;
25	TexturePtr texPtr = Ogre::TextureManager::getSingleton().createManual(name + "_ALL",
26	"default",
27	TEX_TYPE_2D,
28	width,
29	height,
30	0,
31	0,
32	PF_FLOAT32_R,
33	TU_RENDERTARGET);
34	allWeightsTexture = texPtr.getPointer();
35	//add viewport to rendertarget
36	HardwarePixelBuffer* hpb = (allWeightsTexture->getBuffer()).getPointer();
37	RenderTarget* rt = hpb->getRenderTarget();
38	Camera* wc = Root::getSingleton()._getCurrentSceneManager()->createCamera(name + "_ALL_CAMERA");
39	Viewport* v = rt->addViewport(wc);
40	v->setOverlaysEnabled(false);
41	rt->setAutoUpdated(false);
42
43	unsigned int clustercount = OgreIlluminationManager::getSingleton().getPathMapClusterLengthsSize();
44	width = clustercount;
45	height = 1;
46	texPtr = Ogre::TextureManager::getSingleton().createManual(name,
47	"default",
48	TEX_TYPE_2D,
49	width,
50	height,
51	0,
52	0,
53	PF_FLOAT32_R,
54	TU_RENDERTARGET);
55	weightTexture = texPtr.getPointer();
56	//add viewport to rendertarget
57	hpb = (weightTexture->getBuffer()).getPointer();
58	rt = hpb->getRenderTarget();
59	wc = Root::getSingleton()._getCurrentSceneManager()->createCamera(name + "_CAMERA");
60	v = rt->addViewport(wc);
61	v->setOverlaysEnabled(false);
62	rt->setAutoUpdated(false);
63	}
64
65
66
67	void OgrePMWeightComputeRenderingRun::updateFrame(unsigned long frameNum)
68	{
69	OgreIlluminationManager::getSingleton().updateGlobalRun(ILLUMRUN_PM_ENTRYPOINTMAP, frameNum);
70	OgrePMEntryPointMapRenderingRun* PMEPrun = (OgrePMEntryPointMapRenderingRun*)
71	OgreIlluminationManager::getSingleton().getGlobalRun(ILLUMRUN_PM_ENTRYPOINTMAP)->asOgreRenderingRun();
72	unsigned int entryPointCnt = OgreIlluminationManager::getSingleton().getPathMapEntryPoints().size();
73	int col = entryPointCnt / 4096;
74
75	if(light->getType() == Light::LT_SPOTLIGHT)
76	{
77	OgreIlluminationManager::getSingleton().createPerLightRun(light->getName(), ILLUMRUN_DEPTH_SHADOWMAP);
78	OgreIlluminationManager::getSingleton().updatePerLightRun(light->getName(), ILLUMRUN_DEPTH_SHADOWMAP, frameNum);
79	OgreDepthShadowMapRenderingRun* SMrun = (OgreDepthShadowMapRenderingRun*) OgreIlluminationManager::getSingleton()
80	.getPerLightRun(light->getName(), ILLUMRUN_DEPTH_SHADOWMAP)->asOgreRenderingRun();
81
82	MaterialPtr mat = MaterialManager::getSingleton().getByName("GTP/PathMap_ComputeWeights");
83	GpuProgramParameters* Fparams = mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters().getPointer();
84
85	Vector3 lightPos = light->getPosition();
86	Vector3 lightDir = light->getDirection();
87	// Radian lightAngle = light->getSpotlightOuterAngle();
88
89	Fparams->setNamedConstant("nRadionColumns", col);
90	Fparams->setNamedConstant("lightPos", lightPos);
91	Fparams->setNamedConstant("lightDir", lightDir);
92	Fparams->setNamedConstant("lightViewProj", SMrun->getLightViewProjMatrix());
93	Fparams->setNamedConstant("lightFarPlane", SMrun->getLightFarPlane());
94
95	mat->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(
96	PMEPrun->getEntryPointTextureName());
97	mat->getTechnique(0)->getPass(0)->getTextureUnitState(1)->setTextureName(
98	SMrun->getDepthMapTextureName());
99
100	RenderTarget* rt = allWeightsTexture->getBuffer().getPointer()->getRenderTarget();
101	renderFullscreenQuad(mat->getName(), rt);
102
103	// rt->writeContentsToFile("allweights.bmp");
104	// rt->writeContentsToFile("allweights.dds");
105
106	/* float* allweights = new float[entryPointCnt / 4096 * 4096];
107	PixelBox lockBox(entryPointCnt / 4096, 4096, 1, PF_FLOAT32_R, allweights);
108	allWeightsTexture->getBuffer()->blitToMemory(lockBox);
109
110	///////////////////DEBUG
111	static BillboardSet* entryPointBBSet = 0;
112	if(entryPointBBSet == 0)
113	{
114	SceneManager* sm = Root::getSingleton()._getCurrentSceneManager();
115	entryPointBBSet = sm->createBillboardSet("PATHMAP_ENTRYPOINTS", entryPointCnt);
116	entryPointBBSet->setBillboardType(BBT_POINT);
117	entryPointBBSet->setBillboardsInWorldSpace(true);
118	entryPointBBSet->setPointRenderingEnabled(true);
119	for(unsigned int i = 0; i < entryPointCnt; i++)
120	{
121	PathMapEntryPoint EP = OgreIlluminationManager::getSingleton().getPathMapEntryPoints().at(i);
122	Vector3 billboardPosition = EP.position;
123
124	float uCoord = allweights[i];
125	float vCoord = 0;
126	//float uCoord = ((float) (i % col) + 0.5f) / (float) col;
127	//float vCoord = ((float)(i / col) + 0.5f) / 4096.0f;
128	entryPointBBSet->createBillboard(billboardPosition, ColourValue(uCoord, vCoord, 0, 0));
129	}
130	entryPointBBSet->setMaterialName("GTP/PM/EPBillboards");
131	MaterialPtr mater = MaterialManager::getSingleton().getByName("GTP/PM/EPBillboards");
132	mater->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(allWeightsTexture->getName());
133	sm->getRootSceneNode()->createChildSceneNode()->attachObject(entryPointBBSet);
134	}
135
136	delete[] allweights;*/
137
138	/////////////////
139	}
140	else
141	{
142	///not implemented
143	}
144
145	unsigned int clustercount = OgreIlluminationManager::getSingleton().getPathMapClusterLengthsSize();
146
147	MaterialPtr mat = MaterialManager::getSingleton().getByName("GTP/PathMap_SumWeights");
148	GpuProgramParameters* Fparams = mat->getTechnique(0)->getPass(0)->getFragmentProgramParameters().getPointer();
149	Fparams->setNamedConstant("nRadionColumns", col);
150	Fparams->setNamedConstant("clusterCount", (float) clustercount);
151	mat->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(
152	PMEPrun->getEntryPointTextureName());
153	mat->getTechnique(0)->getPass(0)->getTextureUnitState(1)->setTextureName(
154	PMEPrun->getClusterLengthTextureName());
155	mat->getTechnique(0)->getPass(0)->getTextureUnitState(2)->setTextureName(
156	allWeightsTexture->getName());
157
158	RenderTarget* rt = weightTexture->getBuffer().getPointer()->getRenderTarget();
159	renderFullscreenQuad(mat->getName(), rt);
160
161	//rt->writeContentsToFile("weights.bmp");
162	//rt->writeContentsToFile("weights.dds");
163	/*
164	float* weights = new float[clustercount];
165	PixelBox lockBox(clustercount, 1, 1, PF_FLOAT32_R, weights);
166	weightTexture->getBuffer()->blitToMemory(lockBox);
167
168	delete[] weights;*/
169	}
170
171

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