[1148] | 1 | #include "Mesh.h"
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| 2 | #include "glInterface.h"
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| 3 | #include "OcclusionQuery.h"
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| 4 | #include "QtGlRenderer.h"
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| 5 | #include "ViewCellsManager.h"
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| 6 | #include "SceneGraph.h"
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| 7 | #include "Pvs.h"
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| 8 | #include "Viewcell.h"
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| 9 | #include "Beam.h"
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| 10 | #include "KdTree.h"
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| 11 | #include "Environment.h"
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| 12 | #include <Cg/cg.h>
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| 13 | #include <Cg/cgGL.h>
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| 14 |
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| 15 | #include <QVBoxLayout>
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| 16 |
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| 17 | namespace GtpVisibilityPreprocessor {
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| 18 |
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| 19 | class ViewCellsManager;
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| 20 |
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| 21 | static CGcontext sCgContext = NULL;
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| 22 | static CGprogram sCgFragmentProgram = NULL;
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| 23 | static CGprofile sCgFragmentProfile;
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| 24 |
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| 25 | GLuint frontDepthMap;
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| 26 | GLuint backDepthMap;
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| 27 |
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| 28 | const int depthMapSize = 512;
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| 29 |
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| 30 | //static vector<OcclusionQuery *> sQueries;
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| 31 |
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| 32 | GlRendererWidget *rendererWidget = NULL;
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| 33 | GlDebuggerWidget *debuggerWidget = NULL;
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| 34 |
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| 35 | static inline bool ilt(Intersectable *obj1, Intersectable *obj2)
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| 36 | {
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| 37 | return obj1->mId < obj2->mId;
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| 38 | }
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| 39 |
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| 40 |
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| 41 | static void handleCgError()
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| 42 | {
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| 43 | Debug << "Cg error: " << cgGetErrorString(cgGetError()) << endl;
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| 44 | exit(1);
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| 45 | }
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| 46 |
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| 47 | void
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| 48 | QtGlRendererBuffer::EvalRenderCostSample(RenderCostSample &sample,
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| 49 | const bool useOcclusionQueries,
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| 50 | const int threshold
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| 51 | )
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| 52 | {
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| 53 | // choose a random view point
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| 54 | mViewCellsManager->GetViewPoint(mViewPoint);
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| 55 | sample.mPosition = mViewPoint;
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| 56 | //cout << "viewpoint: " << mViewPoint << endl;
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| 57 |
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| 58 | // take a render cost sample by rendering a cube
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| 59 | Vector3 directions[6];
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| 60 |
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| 61 | directions[0] = Vector3(1,0,0);
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| 62 | directions[1] = Vector3(0,1,0);
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| 63 | directions[2] = Vector3(0,0,1);
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| 64 | directions[3] = Vector3(-1,0,0);
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| 65 | directions[4] = Vector3(0,-1,0);
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| 66 | directions[5] = Vector3(0,0,-1);
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| 67 |
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| 68 | sample.mVisibleObjects = 0;
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| 69 |
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| 70 | // reset object counters
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| 71 | ObjectContainer::const_iterator it, it_end = mObjects.end();
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| 72 |
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| 73 | for (it = mObjects.begin(); it != it_end; ++ it)
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| 74 | {
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| 75 | (*it)->mCounter = 0;
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| 76 | }
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| 77 |
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| 78 | ++ mFrame;
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| 79 |
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| 80 | //glCullFace(GL_FRONT);
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| 81 | glCullFace(GL_BACK);
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| 82 | glDisable(GL_CULL_FACE);
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| 83 |
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| 84 |
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| 85 | // query all 6 directions for a full point sample
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| 86 | for (int i = 0; i < 6; ++ i)
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| 87 | {
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| 88 | mViewDirection = directions[i];
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| 89 | SetupCamera();
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| 90 |
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| 91 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
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| 92 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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| 93 | //glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); glDepthMask(GL_TRUE);
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| 94 | glDepthFunc(GL_LESS);
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| 95 |
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| 96 | mUseFalseColors = true;
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| 97 |
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| 98 | // the actual scene rendering fills the depth (for occlusion queries)
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| 99 | // and the frame buffer (for item buffer)
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| 100 | RenderScene();
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| 101 |
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| 102 |
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| 103 | if (0)
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| 104 | {
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| 105 | char filename[256];
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| 106 | sprintf(filename, "snap/frame-%04d-%d.png", mFrame, i);
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| 107 | QImage im = toImage();
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| 108 | im.save(filename, "PNG");
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| 109 | }
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| 110 |
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| 111 | // evaluate the sample
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| 112 | if (useOcclusionQueries)
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| 113 | {
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| 114 | EvalQueryWithOcclusionQueries();
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| 115 | }
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| 116 | else
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| 117 | {
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| 118 | EvalQueryWithItemBuffer();
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| 119 | }
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| 120 | }
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| 121 |
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| 122 | // now evaluate the statistics over that sample
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| 123 | // currently only the number of visible objects is taken into account
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| 124 | sample.Reset();
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| 125 |
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| 126 | for (it = mObjects.begin(); it != it_end; ++ it)
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| 127 | {
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| 128 | Intersectable *obj = *it;
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| 129 | if (obj->mCounter >= threshold)
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| 130 | {
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| 131 | ++ sample.mVisibleObjects;
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| 132 | sample.mVisiblePixels += obj->mCounter;
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| 133 | }
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| 134 | }
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| 135 |
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| 136 | //cout << "RS=" << sample.mVisibleObjects << " ";
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| 137 | }
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| 138 |
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| 139 |
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| 140 | QtGlRendererBuffer::~QtGlRendererBuffer()
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| 141 | {
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| 142 | if (sCgFragmentProgram)
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| 143 | cgDestroyProgram(sCgFragmentProgram);
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| 144 | if (sCgContext)
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| 145 | cgDestroyContext(sCgContext);
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| 146 | }
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| 147 |
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| 148 |
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| 149 | void
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| 150 | QtGlRendererBuffer::SampleRenderCost(const int numSamples,
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| 151 | vector<RenderCostSample> &samples,
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| 152 | const bool useOcclusionQueries,
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| 153 | const int threshold
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| 154 | )
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| 155 | {
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| 156 | makeCurrent();
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| 157 |
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| 158 | if (mPixelBuffer == NULL)
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| 159 | mPixelBuffer = new unsigned int[GetWidth()*GetHeight()];
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| 160 |
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| 161 | // using 90 degree projection to capture 360 view with 6 samples
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| 162 | SetupProjection(GetHeight(), GetHeight(), 90.0f);
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| 163 |
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| 164 | //samples.resize(numSamples);
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| 165 | halton.Reset();
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| 166 |
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| 167 | // the number of queries queried in batch mode
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| 168 | const int numQ = 500;
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| 169 |
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| 170 | //const int numQ = (int)mObjects.size();
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| 171 | if (useOcclusionQueries)
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| 172 | {
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| 173 | cout << "\ngenerating " << numQ << " queries ... ";
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| 174 | OcclusionQuery::GenQueries(mOcclusionQueries, numQ);
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| 175 | cout << "finished" << endl;
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| 176 | }
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| 177 |
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| 178 | // sampling queries
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| 179 | for (int i = 0; i < numSamples; ++ i)
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| 180 | {
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| 181 | cout << ".";
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| 182 | EvalRenderCostSample(samples[i], useOcclusionQueries, threshold);
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| 183 | }
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| 184 |
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| 185 | doneCurrent();
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| 186 |
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| 187 | }
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| 188 |
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| 189 |
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| 190 |
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| 191 | QtGlRendererBuffer::QtGlRendererBuffer(const int w,
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| 192 | const int h,
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| 193 | SceneGraph *sceneGraph,
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| 194 | ViewCellsManager *viewcells,
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| 195 | KdTree *tree):
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| 196 | QGLPixelBuffer(QSize(w, h)), GlRendererBuffer(sceneGraph, viewcells, tree) {
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| 197 |
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| 198 | Environment::GetSingleton()->GetIntValue("Preprocessor.pvsRenderErrorSamples", mPvsStatFrames);
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| 199 | mPvsErrorBuffer.resize(mPvsStatFrames);
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| 200 | ClearErrorBuffer();
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| 201 |
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| 202 | mPixelBuffer = NULL;
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| 203 |
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| 204 | makeCurrent();
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| 205 | InitGL();
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| 206 | doneCurrent();
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| 207 |
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| 208 | }
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| 209 |
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| 210 | float
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| 211 | QtGlRendererBuffer::GetPixelError(int &pvsSize)
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| 212 | {
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| 213 | float pErrorPixels = -1.0f;
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| 214 |
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| 215 | glReadBuffer(GL_BACK);
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| 216 |
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| 217 | // mUseFalseColors = true;
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| 218 |
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| 219 | mUseFalseColors = false;
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| 220 | unsigned int pixelCount;
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| 221 |
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| 222 | //static int query = -1;
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| 223 | //if (query == -1)
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| 224 | // glGenOcclusionQueriesNV(1, (unsigned int *)&query);
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| 225 |
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| 226 | OcclusionQuery query;
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| 227 |
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| 228 | if (mDetectEmptyViewSpace) {
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| 229 | // now check whether any backfacing polygon would pass the depth test
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| 230 | SetupCamera();
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| 231 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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| 232 | glEnable( GL_CULL_FACE );
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| 233 |
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| 234 | RenderScene();
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| 235 |
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| 236 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
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| 237 | glDepthMask(GL_FALSE);
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| 238 | glDisable( GL_CULL_FACE );
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| 239 |
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| 240 |
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| 241 | query.BeginQuery();
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| 242 |
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| 243 | RenderScene();
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| 244 |
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| 245 | query.EndQuery();
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| 246 |
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| 247 | // at this point, if possible, go and do some other computation
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| 248 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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| 249 | glDepthMask(GL_TRUE);
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| 250 | glEnable( GL_CULL_FACE );
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| 251 |
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| 252 | // reenable other state
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| 253 | pixelCount = query.GetQueryResult();
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| 254 |
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| 255 | if (pixelCount > 0)
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| 256 | return -1.0f; // backfacing polygon found -> not a valid viewspace sample
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| 257 | } else
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| 258 | glDisable( GL_CULL_FACE );
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| 259 |
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| 260 |
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| 261 | ViewCell *viewcell = NULL;
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| 262 |
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| 263 | PrVs prvs;
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| 264 |
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| 265 | mViewCellsManager->SetMaxFilterSize(0);
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| 266 | mViewCellsManager->GetPrVS(mViewPoint, prvs, mViewCellsManager->GetFilterWidth());
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| 267 | viewcell = prvs.mViewCell;
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| 268 |
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| 269 | // ViewCell *viewcell = mViewCellsManager->GetViewCell(mViewPoint);
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| 270 | pvsSize = 0;
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| 271 | if (viewcell) {
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| 272 | SetupCamera();
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| 273 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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| 274 |
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| 275 | glColorMask(GL_FALSE, GL_TRUE, GL_FALSE, GL_FALSE);
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| 276 |
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| 277 | // Render PVS
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| 278 | std::map<Intersectable *,
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| 279 | PvsData<Intersectable *>,
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| 280 | LtSample<Intersectable *> >::const_iterator it = viewcell->GetPvs().mEntries.begin();
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| 281 |
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| 282 | pvsSize = viewcell->GetPvs().mEntries.size();
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| 283 |
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| 284 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
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| 285 | Intersectable *object = (*it).first;
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| 286 | RenderIntersectable(object);
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| 287 | }
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| 288 |
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| 289 | // glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE);
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| 290 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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| 291 | mUseFalseColors = true;
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| 292 |
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| 293 | query.BeginQuery();
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| 294 |
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| 295 | SetupCamera();
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| 296 |
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| 297 | RenderScene();
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| 298 |
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| 299 | query.EndQuery();
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| 300 |
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| 301 |
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| 302 | unsigned int pixelCount;
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| 303 | // reenable other state
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| 304 | pixelCount = query.GetQueryResult();
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| 305 |
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| 306 |
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| 307 | pErrorPixels = ((float)pixelCount)/(GetWidth()*GetHeight());
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| 308 | if (mSnapErrorFrames && pErrorPixels > 0.01) {
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| 309 |
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| 310 | char filename[256];
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| 311 | sprintf(filename, "error-frame-%04d-%0.5f.png", mFrame, pErrorPixels);
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| 312 | QImage im = toImage();
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| 313 | string str = mSnapPrefix + filename;
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| 314 | QString qstr(str.c_str());
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| 315 |
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| 316 | im.save(qstr, "PNG");
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| 317 | if (1) { //0 && mFrame == 1543) {
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| 318 | int x,y;
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| 319 | int lastIndex = -1;
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| 320 | for (y=0; y < im.height(); y++)
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| 321 | for (x=0; x < im.width(); x++) {
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| 322 | QRgb p = im.pixel(x,y);
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| 323 | int index = qRed(p) + (qGreen(p)<<8) + (qBlue(p)<<16);
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| 324 | if (qGreen(p) != 255 && index!=0) {
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| 325 | if (index != lastIndex) {
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| 326 | // Debug<<"ei="<<index<<" ";
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| 327 | lastIndex = index;
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| 328 | }
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| 329 | }
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| 330 | }
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| 331 | }
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| 332 |
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| 333 |
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| 334 | mUseFalseColors = false;
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| 335 | glPushAttrib(GL_CURRENT_BIT);
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| 336 | glColor3f(0,1,0);
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| 337 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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| 338 | SetupCamera();
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| 339 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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| 340 |
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| 341 | // Render PVS
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| 342 | std::map<Intersectable *,
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| 343 | PvsData<Intersectable *>,
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| 344 | LtSample<Intersectable *> >::const_iterator it = viewcell->GetPvs().mEntries.begin();
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| 345 |
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| 346 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
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| 347 | Intersectable *object = (*it).first;
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| 348 | RenderIntersectable(object);
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| 349 | }
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| 350 |
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| 351 | im = toImage();
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| 352 | sprintf(filename, "error-frame-%04d-%0.5f-pvs.png", mFrame, pErrorPixels);
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| 353 | str = mSnapPrefix + filename;
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| 354 | qstr = str.c_str();
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| 355 | im.save(qstr, "PNG");
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| 356 | glPopAttrib();
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| 357 | }
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| 358 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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| 359 | }
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| 360 |
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| 361 | if (viewcell && mViewCellsManager->GetMaxFilterSize() > 0)
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| 362 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
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| 363 |
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| 364 | return pErrorPixels;
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| 365 | }
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| 366 |
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| 367 |
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| 368 | void
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| 369 | QtGlRendererBuffer::ClearErrorBuffer()
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| 370 | {
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| 371 | for (int i=0; i < mPvsStatFrames; i++) {
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| 372 | mPvsErrorBuffer[i].mError = 1.0f;
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| 373 | }
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| 374 | }
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| 375 |
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| 376 |
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| 377 | void
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| 378 | QtGlRendererBuffer::EvalPvsStat()
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| 379 | {
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| 380 | mPvsStat.Reset();
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| 381 | halton.Reset();
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| 382 |
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| 383 | makeCurrent();
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| 384 |
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| 385 |
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| 386 | SetupProjection(GetWidth(), GetHeight());
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| 387 |
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| 388 |
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| 389 | for (int i=0; i < mPvsStatFrames; i++) {
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| 390 | float err;
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| 391 | // set frame id for saving the error buffer
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| 392 | mFrame = i;
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| 393 | RandomViewPoint();
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| 394 |
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| 395 | // atlanta problematic frames: 325 525 691 1543
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| 396 | #if 0
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| 397 | if (mFrame != 325 &&
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| 398 | mFrame != 525 &&
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| 399 | mFrame != 691 &&
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| 400 | mFrame != 1543)
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| 401 | mPvsErrorBuffer[i] = -1;
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| 402 | else {
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| 403 | Debug<<"frame ="<<mFrame<<" vp="<<mViewPoint<<" vd="<<mViewDirection<<endl;
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| 404 | }
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| 405 | #endif
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| 406 | if (mPvsErrorBuffer[i].mError > 0.0f) {
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| 407 | int pvsSize;
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| 408 |
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| 409 |
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| 410 | float error = GetPixelError(pvsSize);
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| 411 | mPvsErrorBuffer[i].mError = error;
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| 412 | mPvsErrorBuffer[i].mPvsSize = pvsSize;
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| 413 |
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| 414 | emit UpdatePvsErrorItem(i,
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| 415 | mPvsErrorBuffer[i]);
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| 416 |
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| 417 | cout<<"("<<i<<","<<mPvsErrorBuffer[i].mError<<")";
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| 418 | // swapBuffers();
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| 419 | }
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| 420 |
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| 421 | err = mPvsErrorBuffer[i].mError;
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| 422 |
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| 423 | if (err >= 0.0f) {
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| 424 | if (err > mPvsStat.maxError)
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| 425 | mPvsStat.maxError = err;
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| 426 | mPvsStat.sumError += err;
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| 427 | mPvsStat.sumPvsSize += mPvsErrorBuffer[i].mPvsSize;
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| 428 |
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| 429 | if (err == 0.0f)
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| 430 | mPvsStat.errorFreeFrames++;
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| 431 | mPvsStat.frames++;
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| 432 | }
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| 433 | }
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| 434 |
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| 435 | glFinish();
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| 436 | doneCurrent();
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| 437 |
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| 438 | cout<<endl<<flush;
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| 439 | // mRenderingFinished.wakeAll();
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| 440 | }
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| 441 |
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| 442 |
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| 443 |
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| 444 |
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| 445 |
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| 446 |
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| 447 |
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| 448 | void QtGlRendererBuffer::SampleBeamContributions(Intersectable *sourceObject,
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| 449 | Beam &beam,
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| 450 | const int desiredSamples,
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| 451 | BeamSampleStatistics &stat)
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| 452 | {
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| 453 | // TODO: should be moved out of here (not to be done every time)
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| 454 | // only back faces are interesting for the depth pass
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| 455 | glShadeModel(GL_FLAT);
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| 456 | glDisable(GL_LIGHTING);
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| 457 |
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| 458 | // needed to kill the fragments for the front buffer
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| 459 | glEnable(GL_ALPHA_TEST);
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| 460 | glAlphaFunc(GL_GREATER, 0);
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| 461 |
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| 462 | // assumes that the beam is constructed and contains kd-tree nodes
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| 463 | // and viewcells which it intersects
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| 464 |
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| 465 |
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| 466 | // Get the number of viewpoints to be sampled
|
---|
| 467 | // Now it is a sqrt but in general a wiser decision could be made.
|
---|
| 468 | // The less viewpoints the better for rendering performance, since less passes
|
---|
| 469 | // over the beam is needed.
|
---|
| 470 | // The viewpoints could actually be generated outside of the bounding box which
|
---|
| 471 | // would distribute the 'efective viewpoints' of the object surface and thus
|
---|
| 472 | // with a few viewpoints better sample the viewpoint space....
|
---|
| 473 |
|
---|
| 474 | //TODO: comment in
|
---|
| 475 | //int viewPointSamples = sqrt((float)desiredSamples);
|
---|
| 476 | int viewPointSamples = max(desiredSamples / (GetWidth() * GetHeight()), 1);
|
---|
| 477 |
|
---|
| 478 | // the number of direction samples per pass is given by the number of viewpoints
|
---|
| 479 | int directionalSamples = desiredSamples / viewPointSamples;
|
---|
| 480 |
|
---|
| 481 | Debug << "directional samples: " << directionalSamples << endl;
|
---|
| 482 | for (int i = 0; i < viewPointSamples; ++ i)
|
---|
| 483 | {
|
---|
| 484 | Vector3 viewPoint = beam.mBox.GetRandomPoint();
|
---|
| 485 |
|
---|
| 486 | // perhaps the viewpoint should be shifted back a little bit so that it always lies
|
---|
| 487 | // inside the source object
|
---|
| 488 | // 'ideally' the viewpoints would be distributed on the soureObject surface, but this
|
---|
| 489 | // would require more complicated sampling (perhaps hierarchical rejection sampling of
|
---|
| 490 | // the object surface is an option here - only the mesh faces which are inside the box
|
---|
| 491 | // are considered as candidates)
|
---|
| 492 |
|
---|
| 493 | SampleViewpointContributions(sourceObject,
|
---|
| 494 | viewPoint,
|
---|
| 495 | beam,
|
---|
| 496 | directionalSamples,
|
---|
| 497 | stat);
|
---|
| 498 | }
|
---|
| 499 |
|
---|
| 500 |
|
---|
| 501 | // note:
|
---|
| 502 | // this routine would be called only if the number of desired samples is sufficiently
|
---|
| 503 | // large - for other rss tree cells the cpu based sampling is perhaps more efficient
|
---|
| 504 | // distributing the work between cpu and gpu would also allow us to place more sophisticated
|
---|
| 505 | // sample distributions (silhouette ones) using the cpu and the jittered once on the GPU
|
---|
| 506 | // in order that thios scheme is working well the gpu render buffer should run in a separate
|
---|
| 507 | // thread than the cpu sampler, which would not be such a big problem....
|
---|
| 508 |
|
---|
| 509 | // disable alpha test again
|
---|
| 510 | glDisable(GL_ALPHA_TEST);
|
---|
| 511 | }
|
---|
| 512 |
|
---|
| 513 |
|
---|
| 514 |
|
---|
| 515 | void QtGlRendererBuffer::SampleViewpointContributions(Intersectable *sourceObject,
|
---|
| 516 | const Vector3 viewPoint,
|
---|
| 517 | Beam &beam,
|
---|
| 518 | const int samples,
|
---|
| 519 | BeamSampleStatistics &stat)
|
---|
| 520 | {
|
---|
| 521 | // 1. setup the view port to match the desired samples
|
---|
| 522 | glViewport(0, 0, samples, samples);
|
---|
| 523 |
|
---|
| 524 | // 2. setup the projection matrix and view matrix to match the viewpoint + beam.mDirBox
|
---|
| 525 | SetupProjectionForViewPoint(viewPoint, beam, sourceObject);
|
---|
| 526 |
|
---|
| 527 |
|
---|
| 528 | // 3. reset z-buffer to 0 and render the source object for the beam
|
---|
| 529 | // with glCullFace(Enabled) and glFrontFace(GL_CW)
|
---|
| 530 | // save result to the front depth map
|
---|
| 531 | // the front depth map holds ray origins
|
---|
| 532 |
|
---|
| 533 |
|
---|
| 534 | // front depth buffer must be initialised to 0
|
---|
| 535 | float clearDepth;
|
---|
| 536 |
|
---|
| 537 | glGetFloatv(GL_DEPTH_CLEAR_VALUE, &clearDepth);
|
---|
| 538 | glClearDepth(0.0f);
|
---|
| 539 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
---|
| 540 |
|
---|
| 541 |
|
---|
| 542 | //glFrontFace(GL_CW);
|
---|
| 543 | glEnable(GL_CULL_FACE);
|
---|
| 544 | glCullFace(GL_FRONT);
|
---|
| 545 | glColorMask(0, 0, 0, 0);
|
---|
| 546 |
|
---|
| 547 |
|
---|
| 548 | // stencil is increased where the source object is located
|
---|
| 549 | glEnable(GL_STENCIL_TEST);
|
---|
| 550 | glStencilFunc(GL_ALWAYS, 0x1, 0x1);
|
---|
| 551 | glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
|
---|
| 552 |
|
---|
| 553 |
|
---|
| 554 | #if 0
|
---|
| 555 | static int glSourceObjList = -1;
|
---|
| 556 | if (glSourceObjList != -1)
|
---|
| 557 | {
|
---|
| 558 | glSourceObjList = glGenLists(1);
|
---|
| 559 | glNewList(glSourceObjList, GL_COMPILE);
|
---|
| 560 |
|
---|
| 561 | RenderIntersectable(sourceObject);
|
---|
| 562 |
|
---|
| 563 | glEndList();
|
---|
| 564 | }
|
---|
| 565 | glCallList(glSourceObjList);
|
---|
| 566 |
|
---|
| 567 | #else
|
---|
| 568 | RenderIntersectable(sourceObject);
|
---|
| 569 |
|
---|
| 570 | #endif
|
---|
| 571 |
|
---|
| 572 | // copy contents of the front depth buffer into depth texture
|
---|
| 573 | glBindTexture(GL_TEXTURE_2D, frontDepthMap);
|
---|
| 574 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
|
---|
| 575 |
|
---|
| 576 |
|
---|
| 577 | // reset clear function
|
---|
| 578 | glClearDepth(clearDepth);
|
---|
| 579 |
|
---|
| 580 |
|
---|
| 581 |
|
---|
| 582 | // 4. set up the termination depth buffer (= standard depth buffer)
|
---|
| 583 | // only rays which have non-zero entry in the origin buffer are valid since
|
---|
| 584 | // they realy start on the object surface (this is tagged by setting a
|
---|
| 585 | // stencil buffer bit at step 3).
|
---|
| 586 |
|
---|
| 587 | glStencilFunc(GL_EQUAL, 0x1, 0x1);
|
---|
| 588 | glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
|
---|
| 589 |
|
---|
| 590 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 591 | glDepthMask(1);
|
---|
| 592 |
|
---|
| 593 | glEnable(GL_DEPTH_TEST);
|
---|
| 594 |
|
---|
| 595 | glEnable(GL_CULL_FACE);
|
---|
| 596 | glCullFace(GL_BACK);
|
---|
| 597 |
|
---|
| 598 | // setup front depth buffer
|
---|
| 599 | glEnable(GL_TEXTURE_2D);
|
---|
| 600 |
|
---|
| 601 | // bind pixel shader implementing the front depth buffer functionality
|
---|
| 602 | cgGLBindProgram(sCgFragmentProgram);
|
---|
| 603 | cgGLEnableProfile(sCgFragmentProfile);
|
---|
| 604 |
|
---|
| 605 |
|
---|
| 606 | // 5. render all objects inside the beam
|
---|
| 607 | // we can use id based false color to read them back for gaining the pvs
|
---|
| 608 |
|
---|
| 609 | glColorMask(1, 1, 1, 1);
|
---|
| 610 |
|
---|
| 611 |
|
---|
| 612 | // if objects not stored in beam => extract objects
|
---|
| 613 | if (beam.mFlags & !Beam::STORE_OBJECTS)
|
---|
| 614 | {
|
---|
| 615 | vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
|
---|
| 616 |
|
---|
| 617 | Intersectable::NewMail();
|
---|
| 618 | for (it = beam.mKdNodes.begin(); it != it_end; ++ it)
|
---|
| 619 | {
|
---|
| 620 | mKdTree->CollectObjects(*it, beam.mObjects);
|
---|
| 621 | }
|
---|
| 622 | }
|
---|
| 623 |
|
---|
| 624 |
|
---|
| 625 | // (objects can be compiled to a gl list now so that subsequent rendering for
|
---|
| 626 | // this beam is fast - the same hold for step 3)
|
---|
| 627 | // Afterwards we have two depth buffers defining the ray origin and termination
|
---|
| 628 |
|
---|
| 629 |
|
---|
| 630 | #if 0
|
---|
| 631 | static int glObjList = -1;
|
---|
| 632 | if (glObjList != -1)
|
---|
| 633 | {
|
---|
| 634 | glObjList = glGenLists(1);
|
---|
| 635 | glNewList(glObjList, GL_COMPILE);
|
---|
| 636 |
|
---|
| 637 | ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
|
---|
| 638 | for (it = beam.mObjects.begin(); it != it_end; ++ it)
|
---|
| 639 | {
|
---|
| 640 | // render all objects except the source object
|
---|
| 641 | if (*it != sourceObject)
|
---|
| 642 | RenderIntersectable(*it);
|
---|
| 643 | }
|
---|
| 644 |
|
---|
| 645 | glEndList();
|
---|
| 646 | }
|
---|
| 647 |
|
---|
| 648 | glCallList(glObjList);
|
---|
| 649 | #else
|
---|
| 650 | ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
|
---|
| 651 | for (it = beam.mObjects.begin(); it != it_end; ++ it)
|
---|
| 652 | {
|
---|
| 653 | // render all objects except the source object
|
---|
| 654 | if (*it != sourceObject)
|
---|
| 655 | RenderIntersectable(*it);
|
---|
| 656 | }
|
---|
| 657 | #endif
|
---|
| 658 |
|
---|
| 659 |
|
---|
| 660 |
|
---|
| 661 | // 6. Use occlusion queries for all viewcell meshes associated with the beam ->
|
---|
| 662 | // a fragment passes if the corresponding stencil fragment is set and its depth is
|
---|
| 663 | // between origin and termination buffer
|
---|
| 664 |
|
---|
| 665 | // create new queries if necessary
|
---|
| 666 | OcclusionQuery::GenQueries(mOcclusionQueries, (int)beam.mViewCells.size());
|
---|
| 667 |
|
---|
| 668 | // check whether any backfacing polygon would pass the depth test?
|
---|
| 669 | // matt: should check both back /front facing because of dual depth buffer
|
---|
| 670 | // and danger of cutting the near plane with front facing polys.
|
---|
| 671 |
|
---|
| 672 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
| 673 | glDepthMask(GL_FALSE);
|
---|
| 674 | glDisable(GL_CULL_FACE);
|
---|
| 675 |
|
---|
| 676 |
|
---|
| 677 | ViewCellContainer::const_iterator vit, vit_end = beam.mViewCells.end();
|
---|
| 678 |
|
---|
| 679 | int queryIdx = 0;
|
---|
| 680 |
|
---|
| 681 | for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 682 | {
|
---|
| 683 | mOcclusionQueries[queryIdx ++]->BeginQuery();
|
---|
| 684 |
|
---|
| 685 | RenderIntersectable(*vit);
|
---|
| 686 |
|
---|
| 687 | mOcclusionQueries[queryIdx]->EndQuery();
|
---|
| 688 |
|
---|
| 689 | ++ queryIdx;
|
---|
| 690 | }
|
---|
| 691 |
|
---|
| 692 |
|
---|
| 693 |
|
---|
| 694 | // at this point, if possible, go and do some other computation
|
---|
| 695 |
|
---|
| 696 |
|
---|
| 697 |
|
---|
| 698 | // 7. The number of visible pixels is the number of sample rays which see the source
|
---|
| 699 | // object from the corresponding viewcell -> remember these values for later update
|
---|
| 700 | // of the viewcell pvs - or update immediately?
|
---|
| 701 |
|
---|
| 702 | queryIdx = 0;
|
---|
| 703 |
|
---|
| 704 | for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 705 | {
|
---|
| 706 | // fetch queries
|
---|
| 707 | unsigned int pixelCount = mOcclusionQueries[queryIdx ++]->GetQueryResult();
|
---|
| 708 |
|
---|
| 709 | if (pixelCount)
|
---|
| 710 | Debug << "view cell " << (*vit)->GetId() << " visible pixels: " << pixelCount << endl;
|
---|
| 711 | }
|
---|
| 712 |
|
---|
| 713 |
|
---|
| 714 | // 8. Copmpute rendering statistics
|
---|
| 715 | // In general it is not neccessary to remember to extract all the rays cast. I hope it
|
---|
| 716 | // would be sufficient to gain only the intergral statistics about the new contributions
|
---|
| 717 | // and so the rss tree would actually store no new rays (only the initial ones)
|
---|
| 718 | // the subdivision of the tree would only be driven by the statistics (the glrender could
|
---|
| 719 | // evaluate the contribution entropy for example)
|
---|
| 720 | // However might be an option to extract/store only those the rays which made a contribution
|
---|
| 721 | // (new viewcell has been discovered) or relative contribution greater than a threshold ...
|
---|
| 722 |
|
---|
| 723 | ObjectContainer pvsObj;
|
---|
| 724 | stat.pvsSize = ComputePvs(beam.mObjects, pvsObj);
|
---|
| 725 |
|
---|
| 726 | // to gain ray source and termination
|
---|
| 727 | // copy contents of ray termination buffer into depth texture
|
---|
| 728 | // and compare with ray source buffer
|
---|
| 729 | #if 0
|
---|
| 730 | VssRayContainer rays;
|
---|
| 731 |
|
---|
| 732 | glBindTexture(GL_TEXTURE_2D, backDepthMap);
|
---|
| 733 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
|
---|
| 734 |
|
---|
| 735 | ComputeRays(Intersectable *sourceObj, rays);
|
---|
| 736 |
|
---|
| 737 | #endif
|
---|
| 738 |
|
---|
| 739 |
|
---|
| 740 |
|
---|
| 741 | //-- cleanup
|
---|
| 742 |
|
---|
| 743 |
|
---|
| 744 | // reset gl state
|
---|
| 745 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 746 | glDepthMask(GL_TRUE);
|
---|
| 747 | glEnable(GL_CULL_FACE);
|
---|
| 748 | glDisable(GL_STENCIL_TEST);
|
---|
| 749 | cgGLDisableProfile(sCgFragmentProfile);
|
---|
| 750 | glDisable(GL_TEXTURE_2D);
|
---|
| 751 |
|
---|
| 752 | // remove objects from beam
|
---|
| 753 | if (beam.mFlags & !Beam::STORE_OBJECTS)
|
---|
| 754 | beam.mObjects.clear();
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 |
|
---|
| 758 | void QtGlRendererBuffer::SetupProjectionForViewPoint(const Vector3 &viewPoint,
|
---|
| 759 | const Beam &beam,
|
---|
| 760 | Intersectable *sourceObject)
|
---|
| 761 | {
|
---|
| 762 | float left, right, bottom, top, znear, zfar;
|
---|
| 763 |
|
---|
| 764 | beam.ComputePerspectiveFrustum(left, right, bottom, top, znear, zfar,
|
---|
| 765 | mSceneGraph->GetBox());
|
---|
| 766 |
|
---|
| 767 | //Debug << left << " " << right << " " << bottom << " " << top << " " << znear << " " << zfar << endl;
|
---|
| 768 | glMatrixMode(GL_PROJECTION);
|
---|
| 769 | glLoadIdentity();
|
---|
| 770 | glFrustum(left, right, bottom, top, znear, zfar);
|
---|
| 771 | //glFrustum(-1, 1, -1, 1, 1, 20000);
|
---|
| 772 |
|
---|
| 773 | const Vector3 center = viewPoint + beam.GetMainDirection() * (zfar - znear) * 0.3f;
|
---|
| 774 | const Vector3 up =
|
---|
| 775 | Normalize(CrossProd(beam.mPlanes[0].mNormal, beam.mPlanes[4].mNormal));
|
---|
| 776 |
|
---|
| 777 | #ifdef _DEBUG
|
---|
| 778 | Debug << "view point: " << viewPoint << endl;
|
---|
| 779 | Debug << "eye: " << center << endl;
|
---|
| 780 | Debug << "up: " << up << endl;
|
---|
| 781 | #endif
|
---|
| 782 |
|
---|
| 783 | glMatrixMode(GL_MODELVIEW);
|
---|
| 784 | glLoadIdentity();
|
---|
| 785 | gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z,
|
---|
| 786 | center.x, center.y, center.z,
|
---|
| 787 | up.x, up.y, up.z);
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 |
|
---|
| 791 | void QtGlRendererBuffer::InitGL()
|
---|
| 792 | {
|
---|
| 793 | makeCurrent();
|
---|
| 794 | GlRenderer::InitGL();
|
---|
| 795 |
|
---|
| 796 | #if 1
|
---|
| 797 | // initialise dual depth buffer textures
|
---|
| 798 | glGenTextures(1, &frontDepthMap);
|
---|
| 799 | glBindTexture(GL_TEXTURE_2D, frontDepthMap);
|
---|
| 800 |
|
---|
| 801 | glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize,
|
---|
| 802 | depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
|
---|
| 803 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
| 804 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
| 805 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
---|
| 806 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
---|
| 807 |
|
---|
| 808 | glGenTextures(1, &backDepthMap);
|
---|
| 809 | glBindTexture(GL_TEXTURE_2D, backDepthMap);
|
---|
| 810 |
|
---|
| 811 | glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize,
|
---|
| 812 | depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
|
---|
| 813 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
| 814 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
| 815 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
---|
| 816 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
---|
| 817 |
|
---|
| 818 | // cg initialization
|
---|
| 819 | cgSetErrorCallback(handleCgError);
|
---|
| 820 | sCgContext = cgCreateContext();
|
---|
| 821 |
|
---|
| 822 | if (cgGLIsProfileSupported(CG_PROFILE_ARBFP1))
|
---|
| 823 | sCgFragmentProfile = CG_PROFILE_ARBFP1;
|
---|
| 824 | else
|
---|
| 825 | {
|
---|
| 826 | // try FP30
|
---|
| 827 | if (cgGLIsProfileSupported(CG_PROFILE_FP30))
|
---|
| 828 | sCgFragmentProfile = CG_PROFILE_FP30;
|
---|
| 829 | else
|
---|
| 830 | {
|
---|
| 831 | Debug << "Neither arbfp1 or fp30 fragment profiles supported on this system" << endl;
|
---|
| 832 | exit(1);
|
---|
| 833 | }
|
---|
| 834 | }
|
---|
| 835 |
|
---|
| 836 |
|
---|
| 837 | sCgFragmentProgram = cgCreateProgramFromFile(sCgContext,
|
---|
| 838 | CG_SOURCE, "../src/dual_depth.cg",
|
---|
| 839 | sCgFragmentProfile,
|
---|
| 840 | NULL,
|
---|
| 841 | NULL);
|
---|
| 842 |
|
---|
| 843 | if (!cgIsProgramCompiled(sCgFragmentProgram))
|
---|
| 844 | cgCompileProgram(sCgFragmentProgram);
|
---|
| 845 |
|
---|
| 846 | cgGLLoadProgram(sCgFragmentProgram);
|
---|
| 847 | cgGLBindProgram(sCgFragmentProgram);
|
---|
| 848 |
|
---|
| 849 | Debug << "---- PROGRAM BEGIN ----\n" <<
|
---|
| 850 | cgGetProgramString(sCgFragmentProgram, CG_COMPILED_PROGRAM) << "---- PROGRAM END ----\n";
|
---|
| 851 |
|
---|
| 852 | #endif
|
---|
| 853 | doneCurrent();
|
---|
| 854 | }
|
---|
| 855 |
|
---|
| 856 |
|
---|
| 857 | void QtGlRendererBuffer::ComputeRays(Intersectable *sourceObj, VssRayContainer &rays)
|
---|
| 858 | {
|
---|
| 859 | for (int i = 0; i < depthMapSize * depthMapSize; ++ i)
|
---|
| 860 | {
|
---|
| 861 | //todo glGetTexImage()
|
---|
| 862 | }
|
---|
| 863 | }
|
---|
| 864 |
|
---|
| 865 |
|
---|
| 866 |
|
---|
| 867 | int QtGlRendererBuffer::ComputePvs(ObjectContainer &objects,
|
---|
| 868 | ObjectContainer &pvs) const
|
---|
| 869 | {
|
---|
| 870 | int pvsSize = 0;
|
---|
| 871 | QImage image = toImage();
|
---|
| 872 | Intersectable::NewMail();
|
---|
| 873 |
|
---|
| 874 | std::stable_sort(objects.begin(), objects.end(), ilt);
|
---|
| 875 |
|
---|
| 876 | MeshInstance dummy(NULL);
|
---|
| 877 |
|
---|
| 878 | Intersectable *obj = NULL;
|
---|
| 879 |
|
---|
| 880 | for (int x = 0; x < image.width(); ++ x)
|
---|
| 881 | {
|
---|
| 882 | for (int y = 0; y < image.height(); ++ y)
|
---|
| 883 | {
|
---|
| 884 | QRgb pix = image.pixel(x, y);
|
---|
| 885 | const int id = GetId(qRed(pix), qGreen(pix), qBlue(pix));
|
---|
| 886 |
|
---|
| 887 | dummy.SetId(id);
|
---|
| 888 |
|
---|
| 889 | ObjectContainer::iterator oit =
|
---|
| 890 | lower_bound(objects.begin(), objects.end(), &dummy, ilt);
|
---|
| 891 |
|
---|
| 892 |
|
---|
| 893 | if (//(oit != oit.end()) &&
|
---|
| 894 | ((*oit)->GetId() == id) &&
|
---|
| 895 | !obj->Mailed())
|
---|
| 896 | {
|
---|
| 897 | obj = *oit;
|
---|
| 898 | obj->Mail();
|
---|
| 899 | ++ pvsSize;
|
---|
| 900 | pvs.push_back(obj);
|
---|
| 901 | }
|
---|
| 902 | }
|
---|
| 903 | }
|
---|
| 904 |
|
---|
| 905 | return pvsSize;
|
---|
| 906 | }
|
---|
| 907 |
|
---|
| 908 |
|
---|
| 909 |
|
---|
| 910 | void
|
---|
| 911 | GlRendererWidget::SetupProjection(const int w, const int h, const float angle)
|
---|
| 912 | {
|
---|
| 913 | if (!mTopView)
|
---|
| 914 | GlRenderer::SetupProjection(w, h, angle);
|
---|
| 915 | else {
|
---|
| 916 | glViewport(0, 0, w, h);
|
---|
| 917 | glMatrixMode(GL_PROJECTION);
|
---|
| 918 | glLoadIdentity();
|
---|
| 919 | gluPerspective(50.0, 1.0, 0.1, 20.0*Magnitude(mSceneGraph->GetBox().Diagonal()));
|
---|
| 920 | glMatrixMode(GL_MODELVIEW);
|
---|
| 921 | }
|
---|
| 922 | }
|
---|
| 923 |
|
---|
| 924 | void
|
---|
| 925 | GlRendererWidget::RenderPvs()
|
---|
| 926 | {
|
---|
| 927 | SetupCamera();
|
---|
| 928 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 929 |
|
---|
| 930 | ViewCell *viewcell = NULL;
|
---|
| 931 |
|
---|
| 932 | PrVs prvs;
|
---|
| 933 |
|
---|
| 934 | if (!mUseFilter) {
|
---|
| 935 | viewcell = mViewCellsManager->GetViewCell(mViewPoint, true);
|
---|
| 936 | } else {
|
---|
| 937 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 938 | mViewCellsManager->GetPrVS(mViewPoint, prvs, mViewCellsManager->GetFilterWidth());
|
---|
| 939 | viewcell = prvs.mViewCell;
|
---|
| 940 | }
|
---|
| 941 |
|
---|
| 942 | if (viewcell) {
|
---|
| 943 | // copy the pvs so that it can be filtered...
|
---|
| 944 | ObjectPvs pvs = viewcell->GetPvs();
|
---|
| 945 |
|
---|
| 946 | if (mUseSpatialFilter) {
|
---|
| 947 | mViewCellsManager->ApplySpatialFilter(mKdTree,
|
---|
| 948 | mSpatialFilterSize*
|
---|
| 949 | Magnitude(mViewCellsManager->GetViewSpaceBox().Size()),
|
---|
| 950 | pvs);
|
---|
| 951 | }
|
---|
| 952 |
|
---|
| 953 |
|
---|
| 954 | // read back the texture
|
---|
| 955 | std::map<Intersectable *,
|
---|
| 956 | PvsData<Intersectable *>,
|
---|
| 957 | LtSample<Intersectable *> >::const_iterator it = pvs.mEntries.begin();
|
---|
| 958 |
|
---|
| 959 | mPvsSize = pvs.mEntries.size();
|
---|
| 960 |
|
---|
| 961 | for (; it != pvs.mEntries.end(); ++ it) {
|
---|
| 962 | Intersectable *object = (*it).first;
|
---|
| 963 | float visibility = log10((*it).second.mSumPdf + 1)/5.0f;
|
---|
| 964 | glColor3f(visibility, 0.0f, 0.0f);
|
---|
| 965 | mUseForcedColors = true;
|
---|
| 966 | RenderIntersectable(object);
|
---|
| 967 | mUseForcedColors = false;
|
---|
| 968 | }
|
---|
| 969 |
|
---|
| 970 | if (mRenderFilter) {
|
---|
| 971 | mWireFrame = true;
|
---|
| 972 | RenderIntersectable(viewcell);
|
---|
| 973 | mWireFrame = false;
|
---|
| 974 | }
|
---|
| 975 |
|
---|
| 976 | if (mUseFilter)
|
---|
| 977 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
|
---|
| 978 | } else {
|
---|
| 979 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
| 980 | for (; oi != mObjects.end(); oi++)
|
---|
| 981 | RenderIntersectable(*oi);
|
---|
| 982 | }
|
---|
| 983 | }
|
---|
| 984 |
|
---|
| 985 | float
|
---|
| 986 | GlRendererWidget::RenderErrors()
|
---|
| 987 | {
|
---|
| 988 | float pErrorPixels = -1.0f;
|
---|
| 989 |
|
---|
| 990 | glReadBuffer(GL_BACK);
|
---|
| 991 |
|
---|
| 992 | mUseFalseColors = true;
|
---|
| 993 |
|
---|
| 994 | SetupCamera();
|
---|
| 995 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 996 |
|
---|
| 997 | double eq[4];
|
---|
| 998 | eq[0] = mSceneCutPlane.mNormal.x;
|
---|
| 999 | eq[1] = mSceneCutPlane.mNormal.y;
|
---|
| 1000 | eq[2] = mSceneCutPlane.mNormal.z;
|
---|
| 1001 | eq[3] = mSceneCutPlane.mD;
|
---|
| 1002 |
|
---|
| 1003 | if (mCutScene) {
|
---|
| 1004 | glClipPlane(GL_CLIP_PLANE0, eq);
|
---|
| 1005 | glEnable(GL_CLIP_PLANE0);
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | if (mDetectEmptyViewSpace)
|
---|
| 1009 | glEnable( GL_CULL_FACE );
|
---|
| 1010 | else
|
---|
| 1011 | glDisable( GL_CULL_FACE );
|
---|
| 1012 |
|
---|
| 1013 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
| 1014 | for (; oi != mObjects.end(); oi++)
|
---|
| 1015 | RenderIntersectable(*oi);
|
---|
| 1016 |
|
---|
| 1017 | ViewCell *viewcell = NULL;
|
---|
| 1018 |
|
---|
| 1019 | QImage im1, im2;
|
---|
| 1020 | QImage diff;
|
---|
| 1021 |
|
---|
| 1022 | if (viewcell) {
|
---|
| 1023 | // read back the texture
|
---|
| 1024 | im1 = grabFrameBuffer(true);
|
---|
| 1025 |
|
---|
| 1026 | RenderPvs();
|
---|
| 1027 |
|
---|
| 1028 | // read back the texture
|
---|
| 1029 | im2 = grabFrameBuffer(true);
|
---|
| 1030 |
|
---|
| 1031 | diff = im1;
|
---|
| 1032 | int x, y;
|
---|
| 1033 | int errorPixels = 0;
|
---|
| 1034 |
|
---|
| 1035 | for (y = 0; y < im1.height(); y++)
|
---|
| 1036 | for (x = 0; x < im1.width(); x++)
|
---|
| 1037 | if (im1.pixel(x, y) == im2.pixel(x, y))
|
---|
| 1038 | diff.setPixel(x, y, qRgba(0,0,0,0));
|
---|
| 1039 | else {
|
---|
| 1040 | diff.setPixel(x, y, qRgba(255,128,128,255));
|
---|
| 1041 | errorPixels++;
|
---|
| 1042 | }
|
---|
| 1043 | pErrorPixels = ((float)errorPixels)/(im1.height()*im1.width());
|
---|
| 1044 | }
|
---|
| 1045 |
|
---|
| 1046 | // now render the pvs again
|
---|
| 1047 | SetupCamera();
|
---|
| 1048 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1049 | mUseFalseColors = false;
|
---|
| 1050 |
|
---|
| 1051 | oi = mObjects.begin();
|
---|
| 1052 | for (; oi != mObjects.end(); oi++)
|
---|
| 1053 | RenderIntersectable(*oi);
|
---|
| 1054 |
|
---|
| 1055 | // now render im1
|
---|
| 1056 | if (viewcell) {
|
---|
| 1057 | if (0 && mTopView) {
|
---|
| 1058 | mWireFrame = true;
|
---|
| 1059 | RenderIntersectable(viewcell);
|
---|
| 1060 | mWireFrame = false;
|
---|
| 1061 | }
|
---|
| 1062 |
|
---|
| 1063 | // init ortographic projection
|
---|
| 1064 | glMatrixMode(GL_PROJECTION);
|
---|
| 1065 | glPushMatrix();
|
---|
| 1066 |
|
---|
| 1067 | glLoadIdentity();
|
---|
| 1068 | gluOrtho2D(0, 1.0f, 0, 1.0f);
|
---|
| 1069 |
|
---|
| 1070 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1071 | glLoadIdentity();
|
---|
| 1072 |
|
---|
| 1073 | bindTexture(diff);
|
---|
| 1074 |
|
---|
| 1075 | glPushAttrib(GL_ENABLE_BIT);
|
---|
| 1076 | glEnable( GL_ALPHA_TEST );
|
---|
| 1077 | glDisable( GL_CULL_FACE );
|
---|
| 1078 | glAlphaFunc( GL_GREATER, 0.5 );
|
---|
| 1079 |
|
---|
| 1080 | glEnable( GL_TEXTURE_2D );
|
---|
| 1081 | glBegin(GL_QUADS);
|
---|
| 1082 |
|
---|
| 1083 | glTexCoord2f(0,0);
|
---|
| 1084 | glVertex3f(0,0,0);
|
---|
| 1085 |
|
---|
| 1086 | glTexCoord2f(1,0);
|
---|
| 1087 | glVertex3f( 1, 0, 0);
|
---|
| 1088 |
|
---|
| 1089 | glTexCoord2f(1,1);
|
---|
| 1090 | glVertex3f( 1, 1, 0);
|
---|
| 1091 |
|
---|
| 1092 | glTexCoord2f(0,1);
|
---|
| 1093 | glVertex3f(0, 1, 0);
|
---|
| 1094 | glEnd();
|
---|
| 1095 |
|
---|
| 1096 | glPopAttrib();
|
---|
| 1097 |
|
---|
| 1098 | // restore the projection matrix
|
---|
| 1099 | glMatrixMode(GL_PROJECTION);
|
---|
| 1100 | glPopMatrix();
|
---|
| 1101 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1102 | }
|
---|
| 1103 |
|
---|
| 1104 | glDisable(GL_CLIP_PLANE0);
|
---|
| 1105 |
|
---|
| 1106 | mRenderError = pErrorPixels;
|
---|
| 1107 | return pErrorPixels;
|
---|
| 1108 | }
|
---|
| 1109 |
|
---|
| 1110 |
|
---|
| 1111 | void
|
---|
| 1112 | GlRendererWidget::mousePressEvent(QMouseEvent *e)
|
---|
| 1113 | {
|
---|
| 1114 | int x = e->pos().x();
|
---|
| 1115 | int y = e->pos().y();
|
---|
| 1116 |
|
---|
| 1117 | mousePoint.x = x;
|
---|
| 1118 | mousePoint.y = y;
|
---|
| 1119 |
|
---|
| 1120 | }
|
---|
| 1121 |
|
---|
| 1122 | void
|
---|
| 1123 | GlRendererWidget::mouseMoveEvent(QMouseEvent *e)
|
---|
| 1124 | {
|
---|
| 1125 | float MOVE_SENSITIVITY = Magnitude(mSceneGraph->GetBox().Diagonal())*1e-3;
|
---|
| 1126 | float TURN_SENSITIVITY=0.1f;
|
---|
| 1127 | float TILT_SENSITIVITY=32.0 ;
|
---|
| 1128 | float TURN_ANGLE= M_PI/36.0 ;
|
---|
| 1129 |
|
---|
| 1130 | int x = e->pos().x();
|
---|
| 1131 | int y = e->pos().y();
|
---|
| 1132 |
|
---|
| 1133 | if (e->modifiers() & Qt::ControlModifier) {
|
---|
| 1134 | mViewPoint.y += (y-mousePoint.y)*MOVE_SENSITIVITY/2.0;
|
---|
| 1135 | mViewPoint.x += (x-mousePoint.x)*MOVE_SENSITIVITY/2.0;
|
---|
| 1136 | } else {
|
---|
| 1137 | mViewPoint += mViewDirection*((mousePoint.y - y)*MOVE_SENSITIVITY);
|
---|
| 1138 | float adiff = TURN_ANGLE*(x - mousePoint.x)*-TURN_SENSITIVITY;
|
---|
| 1139 | float angle = atan2(mViewDirection.x, mViewDirection.z);
|
---|
| 1140 | mViewDirection.x = sin(angle+adiff);
|
---|
| 1141 | mViewDirection.z = cos(angle+adiff);
|
---|
| 1142 | }
|
---|
| 1143 |
|
---|
| 1144 | mousePoint.x = x;
|
---|
| 1145 | mousePoint.y = y;
|
---|
| 1146 |
|
---|
| 1147 | updateGL();
|
---|
| 1148 | }
|
---|
| 1149 |
|
---|
| 1150 | void
|
---|
| 1151 | GlRendererWidget::mouseReleaseEvent(QMouseEvent *)
|
---|
| 1152 | {
|
---|
| 1153 |
|
---|
| 1154 |
|
---|
| 1155 | }
|
---|
| 1156 |
|
---|
| 1157 | void
|
---|
| 1158 | GlRendererWidget::resizeGL(int w, int h)
|
---|
| 1159 | {
|
---|
| 1160 | SetupProjection(w, h);
|
---|
| 1161 | updateGL();
|
---|
| 1162 | }
|
---|
| 1163 |
|
---|
| 1164 | void
|
---|
| 1165 | GlRendererWidget::paintGL()
|
---|
| 1166 | {
|
---|
| 1167 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1168 |
|
---|
| 1169 |
|
---|
| 1170 | if (!mRenderViewCells) {
|
---|
| 1171 | if (mRenderErrors)
|
---|
| 1172 | RenderErrors();
|
---|
| 1173 | else
|
---|
| 1174 | RenderPvs();
|
---|
| 1175 | RenderInfo();
|
---|
| 1176 | } else {
|
---|
| 1177 | RenderViewCells();
|
---|
| 1178 |
|
---|
| 1179 | mWireFrame = true;
|
---|
| 1180 | RenderScene();
|
---|
| 1181 | mWireFrame = false;
|
---|
| 1182 |
|
---|
| 1183 | RenderInfo();
|
---|
| 1184 | }
|
---|
| 1185 |
|
---|
| 1186 | mFrame++;
|
---|
| 1187 | }
|
---|
| 1188 |
|
---|
| 1189 |
|
---|
| 1190 | void
|
---|
| 1191 | GlRendererWidget::SetupCamera()
|
---|
| 1192 | {
|
---|
| 1193 | if (!mTopView)
|
---|
| 1194 | GlRenderer::SetupCamera();
|
---|
| 1195 | else {
|
---|
| 1196 | if (0) {
|
---|
| 1197 | float dist = Magnitude(mSceneGraph->GetBox().Diagonal())*0.05;
|
---|
| 1198 | Vector3 pos = mViewPoint - dist*Vector3(mViewDirection.x,
|
---|
| 1199 | -1,
|
---|
| 1200 | mViewDirection.y);
|
---|
| 1201 |
|
---|
| 1202 | Vector3 target = mViewPoint + dist*mViewDirection;
|
---|
| 1203 | Vector3 up(0,1,0);
|
---|
| 1204 |
|
---|
| 1205 | glLoadIdentity();
|
---|
| 1206 | gluLookAt(pos.x, pos.y, pos.z,
|
---|
| 1207 | target.x, target.y, target.z,
|
---|
| 1208 | up.x, up.y, up.z);
|
---|
| 1209 | } else {
|
---|
| 1210 | float dist = Magnitude(mSceneGraph->GetBox().Diagonal())*mTopDistance;
|
---|
| 1211 | Vector3 pos = mViewPoint + dist*Vector3(0,
|
---|
| 1212 | 1,
|
---|
| 1213 | 0);
|
---|
| 1214 |
|
---|
| 1215 | Vector3 target = mViewPoint;
|
---|
| 1216 | Vector3 up(mViewDirection.x, 0, mViewDirection.z);
|
---|
| 1217 |
|
---|
| 1218 | glLoadIdentity();
|
---|
| 1219 | gluLookAt(pos.x, pos.y, pos.z,
|
---|
| 1220 | target.x, target.y, target.z,
|
---|
| 1221 | up.x, up.y, up.z);
|
---|
| 1222 |
|
---|
| 1223 | }
|
---|
| 1224 | }
|
---|
| 1225 |
|
---|
| 1226 | }
|
---|
| 1227 |
|
---|
| 1228 | void
|
---|
| 1229 | GlRendererWidget::keyPressEvent ( QKeyEvent * e )
|
---|
| 1230 | {
|
---|
| 1231 | switch (e->key()) {
|
---|
| 1232 | case Qt::Key_T:
|
---|
| 1233 | mTopView = !mTopView;
|
---|
| 1234 | SetupProjection(width(), height());
|
---|
| 1235 | updateGL();
|
---|
| 1236 | break;
|
---|
| 1237 | case Qt::Key_V:
|
---|
| 1238 | mRenderViewCells = !mRenderViewCells;
|
---|
| 1239 | updateGL();
|
---|
| 1240 | break;
|
---|
| 1241 | case Qt::Key_P:
|
---|
| 1242 | // set random viewpoint
|
---|
| 1243 | mViewCellsManager->GetViewPoint(mViewPoint);
|
---|
| 1244 | updateGL();
|
---|
| 1245 | break;
|
---|
| 1246 |
|
---|
| 1247 | default:
|
---|
| 1248 | e->ignore();
|
---|
| 1249 | break;
|
---|
| 1250 | }
|
---|
| 1251 | }
|
---|
| 1252 |
|
---|
| 1253 |
|
---|
| 1254 |
|
---|
| 1255 | GlRendererWidget::GlRendererWidget(SceneGraph *sceneGraph,
|
---|
| 1256 | ViewCellsManager *viewcells,
|
---|
| 1257 | KdTree *tree,
|
---|
| 1258 | QWidget * parent,
|
---|
| 1259 | const QGLWidget * shareWidget,
|
---|
| 1260 | Qt::WFlags f
|
---|
| 1261 | )
|
---|
| 1262 | :
|
---|
| 1263 | GlRenderer(sceneGraph, viewcells, tree), QGLWidget(parent, shareWidget, f)
|
---|
| 1264 | {
|
---|
| 1265 | mTopView = false;
|
---|
| 1266 | mRenderViewCells = false;
|
---|
| 1267 | mTopDistance = 1.0f;
|
---|
| 1268 | mCutViewCells = false;
|
---|
| 1269 | mCutScene = false;
|
---|
| 1270 | mRenderErrors = false;
|
---|
| 1271 | mRenderFilter = true;
|
---|
| 1272 |
|
---|
| 1273 | bool tmp;
|
---|
| 1274 |
|
---|
| 1275 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilityFilter", tmp );
|
---|
| 1276 | mUseFilter = tmp;
|
---|
| 1277 |
|
---|
| 1278 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilitySpatialFilter",
|
---|
| 1279 | tmp );
|
---|
| 1280 |
|
---|
| 1281 | mUseSpatialFilter = tmp;
|
---|
| 1282 |
|
---|
| 1283 | mShowRenderCost = false;
|
---|
| 1284 | mShowPvsSizes = false;
|
---|
| 1285 | mSpatialFilterSize = 0.01;
|
---|
| 1286 | mPvsSize = 0;
|
---|
| 1287 | mRenderError = 0.0f;
|
---|
| 1288 | mControlWidget = new RendererControlWidget(NULL);
|
---|
| 1289 |
|
---|
| 1290 | connect(mControlWidget, SIGNAL(SetViewCellGranularity(int)), this, SLOT(SetViewCellGranularity(int)));
|
---|
| 1291 | connect(mControlWidget, SIGNAL(SetSceneCut(int)), this, SLOT(SetSceneCut(int)));
|
---|
| 1292 | connect(mControlWidget, SIGNAL(SetTopDistance(int)), this, SLOT(SetTopDistance(int)));
|
---|
| 1293 |
|
---|
| 1294 | connect(mControlWidget, SIGNAL(SetVisibilityFilterSize(int)), this, SLOT(SetVisibilityFilterSize(int)));
|
---|
| 1295 | connect(mControlWidget, SIGNAL(SetSpatialFilterSize(int)), this, SLOT(SetSpatialFilterSize(int)));
|
---|
| 1296 |
|
---|
| 1297 | connect(mControlWidget, SIGNAL(SetShowViewCells(bool)), this, SLOT(SetShowViewCells(bool)));
|
---|
| 1298 | connect(mControlWidget, SIGNAL(SetShowRenderCost(bool)), this, SLOT(SetShowRenderCost(bool)));
|
---|
| 1299 | connect(mControlWidget, SIGNAL(SetShowPvsSizes(bool)), this, SLOT(SetShowPvsSizes(bool)));
|
---|
| 1300 | connect(mControlWidget, SIGNAL(SetTopView(bool)), this, SLOT(SetTopView(bool)));
|
---|
| 1301 | connect(mControlWidget, SIGNAL(SetCutViewCells(bool)), this, SLOT(SetCutViewCells(bool)));
|
---|
| 1302 | connect(mControlWidget, SIGNAL(SetCutScene(bool)), this, SLOT(SetCutScene(bool)));
|
---|
| 1303 | connect(mControlWidget, SIGNAL(SetRenderErrors(bool)), this, SLOT(SetRenderErrors(bool)));
|
---|
| 1304 | connect(mControlWidget, SIGNAL(SetRenderFilter(bool)), this, SLOT(SetRenderFilter(bool)));
|
---|
| 1305 | connect(mControlWidget, SIGNAL(SetUseFilter(bool)), this, SLOT(SetUseFilter(bool)));
|
---|
| 1306 | connect(mControlWidget, SIGNAL(SetUseSpatialFilter(bool)),
|
---|
| 1307 | this, SLOT(SetUseSpatialFilter(bool)));
|
---|
| 1308 |
|
---|
| 1309 |
|
---|
| 1310 | mControlWidget->show();
|
---|
| 1311 | }
|
---|
| 1312 |
|
---|
| 1313 |
|
---|
| 1314 | void
|
---|
| 1315 | GlRendererWidget::RenderInfo()
|
---|
| 1316 | {
|
---|
| 1317 | QString s;
|
---|
| 1318 | int vc = 0;
|
---|
| 1319 | if (mViewCellsManager)
|
---|
| 1320 | vc = mViewCellsManager->GetViewCells().size();
|
---|
| 1321 | int filter = 0;
|
---|
| 1322 | if (mViewCellsManager)
|
---|
| 1323 | filter = mViewCellsManager->GetMaxFilterSize();
|
---|
| 1324 |
|
---|
| 1325 | s.sprintf("frame:%04d viewpoint:(%4.1f,%4.1f,%4.1f) dir:(%4.1f,%4.1f,%4.1f) viewcells:%04d filter:%04d pvs:%04d error:%5.5f\%",
|
---|
| 1326 | mFrame,
|
---|
| 1327 | mViewPoint.x,
|
---|
| 1328 | mViewPoint.y,
|
---|
| 1329 | mViewPoint.z,
|
---|
| 1330 | mViewDirection.x,
|
---|
| 1331 | mViewDirection.y,
|
---|
| 1332 | mViewDirection.z,
|
---|
| 1333 | vc,
|
---|
| 1334 |
|
---|
| 1335 | filter,
|
---|
| 1336 | mPvsSize,
|
---|
| 1337 | mRenderError*100.0f
|
---|
| 1338 | );
|
---|
| 1339 |
|
---|
| 1340 | glColor3f(0.0f,0.0f,0.0f);
|
---|
| 1341 | renderText(0,20,s);
|
---|
| 1342 |
|
---|
| 1343 | if (mShowRenderCost) {
|
---|
| 1344 | static vector<float> costFunction;
|
---|
| 1345 | static float maxCost = -1;
|
---|
| 1346 | if (costFunction.size()==0) {
|
---|
| 1347 | ViewCellsTree *tree = mViewCellsManager->GetViewCellsTree();
|
---|
| 1348 | if (tree) {
|
---|
| 1349 | tree->GetCostFunction(costFunction);
|
---|
| 1350 | maxCost = -1;
|
---|
| 1351 | for (int i=0; i < costFunction.size(); i++) {
|
---|
| 1352 | // cout<<i<<":"<<costFunction[i]<<" ";
|
---|
| 1353 | if (costFunction[i] > maxCost)
|
---|
| 1354 | maxCost = costFunction[i];
|
---|
| 1355 | }
|
---|
| 1356 | }
|
---|
| 1357 | }
|
---|
| 1358 |
|
---|
| 1359 |
|
---|
| 1360 | int currentPos = mViewCellsManager->GetViewCells().size();
|
---|
| 1361 | float currentCost=-1;
|
---|
| 1362 |
|
---|
| 1363 | if (currentPos < costFunction.size())
|
---|
| 1364 | currentCost = costFunction[currentPos];
|
---|
| 1365 | #if 0
|
---|
| 1366 | cout<<"costFunction.size()="<<costFunction.size()<<endl;
|
---|
| 1367 | cout<<"CP="<<currentPos<<endl;
|
---|
| 1368 | cout<<"MC="<<maxCost<<endl;
|
---|
| 1369 | cout<<"CC="<<currentCost<<endl;
|
---|
| 1370 | #endif
|
---|
| 1371 | if (costFunction.size()) {
|
---|
| 1372 | glDisable(GL_DEPTH_TEST);
|
---|
| 1373 | // init ortographic projection
|
---|
| 1374 | glMatrixMode(GL_PROJECTION);
|
---|
| 1375 | glPushMatrix();
|
---|
| 1376 |
|
---|
| 1377 | glLoadIdentity();
|
---|
| 1378 | gluOrtho2D(0, 1.0f, 0, 1.0f);
|
---|
| 1379 |
|
---|
| 1380 | glTranslatef(0.1f, 0.1f, 0.0f);
|
---|
| 1381 | glScalef(0.8f, 0.8f, 1.0f);
|
---|
| 1382 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1383 | glLoadIdentity();
|
---|
| 1384 |
|
---|
| 1385 | glColor3f(1.0f,0,0);
|
---|
| 1386 | glBegin(GL_LINE_STRIP);
|
---|
| 1387 | // glVertex3f(0,0,0);
|
---|
| 1388 |
|
---|
| 1389 | for (int i=0; i < costFunction.size(); i++) {
|
---|
| 1390 | float x = i/(float)costFunction.size();
|
---|
| 1391 | float y = costFunction[i]/(maxCost*0.5f);
|
---|
| 1392 | glVertex3f(x,y,0.0f);
|
---|
| 1393 | }
|
---|
| 1394 | glEnd();
|
---|
| 1395 |
|
---|
| 1396 | glColor3f(1.0f,0,0);
|
---|
| 1397 | glBegin(GL_LINES);
|
---|
| 1398 | float x = currentPos/(float)costFunction.size();
|
---|
| 1399 | glVertex3f(x,0.0,0.0f);
|
---|
| 1400 | glVertex3f(x,1.0f,0.0f);
|
---|
| 1401 | glEnd();
|
---|
| 1402 |
|
---|
| 1403 | glColor3f(0.0f,0,0);
|
---|
| 1404 | // show a grid
|
---|
| 1405 | glBegin(GL_LINE_LOOP);
|
---|
| 1406 | glVertex3f(0,0,0.0f);
|
---|
| 1407 | glVertex3f(1,0,0.0f);
|
---|
| 1408 | glVertex3f(1,1,0.0f);
|
---|
| 1409 | glVertex3f(0,1,0.0f);
|
---|
| 1410 | glEnd();
|
---|
| 1411 |
|
---|
| 1412 | glBegin(GL_LINES);
|
---|
| 1413 | for (int i=0; i < 50000 && i < costFunction.size(); i+=10000) {
|
---|
| 1414 | float x = i/(float)costFunction.size();
|
---|
| 1415 | glVertex3f(x,0.0,0.0f);
|
---|
| 1416 | glVertex3f(x,1.0f,0.0f);
|
---|
| 1417 | }
|
---|
| 1418 |
|
---|
| 1419 | for (int i=0; i < maxCost; i+=100) {
|
---|
| 1420 | float y = i/(maxCost*0.5f);
|
---|
| 1421 | glVertex3f(0,y,0.0f);
|
---|
| 1422 | glVertex3f(1,y,0.0f);
|
---|
| 1423 | }
|
---|
| 1424 |
|
---|
| 1425 | glEnd();
|
---|
| 1426 |
|
---|
| 1427 |
|
---|
| 1428 | // restore the projection matrix
|
---|
| 1429 | glMatrixMode(GL_PROJECTION);
|
---|
| 1430 | glPopMatrix();
|
---|
| 1431 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1432 | glEnable(GL_DEPTH_TEST);
|
---|
| 1433 |
|
---|
| 1434 | }
|
---|
| 1435 | }
|
---|
| 1436 | }
|
---|
| 1437 |
|
---|
| 1438 |
|
---|
| 1439 | void
|
---|
| 1440 | GlRendererWidget::SetViewCellGranularity(int number)
|
---|
| 1441 | {
|
---|
| 1442 | if (mViewCellsManager)
|
---|
| 1443 | // mViewCellsManager->SetMaxFilterSize(number);
|
---|
| 1444 | mViewCellsManager->CollectViewCells(number);
|
---|
| 1445 |
|
---|
| 1446 | updateGL();
|
---|
| 1447 | }
|
---|
| 1448 |
|
---|
| 1449 | void
|
---|
| 1450 | GlRendererWidget::SetVisibilityFilterSize(int number)
|
---|
| 1451 | {
|
---|
| 1452 | if (mViewCellsManager)
|
---|
| 1453 | mViewCellsManager->SetMaxFilterSize(number);
|
---|
| 1454 | updateGL();
|
---|
| 1455 | }
|
---|
| 1456 |
|
---|
| 1457 | void
|
---|
| 1458 | GlRendererWidget::SetSpatialFilterSize(int number)
|
---|
| 1459 | {
|
---|
| 1460 | mSpatialFilterSize = 1e-3*number;
|
---|
| 1461 | updateGL();
|
---|
| 1462 | }
|
---|
| 1463 |
|
---|
| 1464 | void
|
---|
| 1465 | GlRendererWidget::SetSceneCut(int number)
|
---|
| 1466 | {
|
---|
| 1467 | // assume the cut plane can only be aligned with xz plane
|
---|
| 1468 | // shift it along y according to number, which is percentage of the bounding
|
---|
| 1469 | // box position
|
---|
| 1470 | if (mViewCellsManager) {
|
---|
| 1471 | AxisAlignedBox3 box = mViewCellsManager->GetViewSpaceBox();
|
---|
| 1472 | Vector3 p = box.Min() + (number/1000.0f)*box.Max();
|
---|
| 1473 | mSceneCutPlane.mNormal = Vector3(0,-1,0);
|
---|
| 1474 | mSceneCutPlane.mD = -DotProd(mSceneCutPlane.mNormal, p);
|
---|
| 1475 | updateGL();
|
---|
| 1476 | }
|
---|
| 1477 | }
|
---|
| 1478 |
|
---|
| 1479 | void
|
---|
| 1480 | GlRendererWidget::SetTopDistance(int number)
|
---|
| 1481 | {
|
---|
| 1482 | mTopDistance = number/1000.0f;
|
---|
| 1483 | updateGL();
|
---|
| 1484 | }
|
---|
| 1485 |
|
---|
| 1486 | void
|
---|
| 1487 | GlRendererWidget::RenderViewCells()
|
---|
| 1488 | {
|
---|
| 1489 | mUseFalseColors = true;
|
---|
| 1490 |
|
---|
| 1491 | SetupCamera();
|
---|
| 1492 | glEnable(GL_CULL_FACE);
|
---|
| 1493 | //glDisable(GL_CULL_FACE);
|
---|
| 1494 | glCullFace(GL_FRONT);
|
---|
| 1495 | double eq[4];
|
---|
| 1496 | eq[0] = mSceneCutPlane.mNormal.x;
|
---|
| 1497 | eq[1] = mSceneCutPlane.mNormal.y;
|
---|
| 1498 | eq[2] = mSceneCutPlane.mNormal.z;
|
---|
| 1499 | eq[3] = mSceneCutPlane.mD;
|
---|
| 1500 |
|
---|
| 1501 | if (mCutViewCells) {
|
---|
| 1502 | glClipPlane(GL_CLIP_PLANE0, eq);
|
---|
| 1503 | glEnable(GL_CLIP_PLANE0);
|
---|
| 1504 | }
|
---|
| 1505 |
|
---|
| 1506 | int i;
|
---|
| 1507 | ViewCellContainer &viewcells = mViewCellsManager->GetViewCells();
|
---|
| 1508 | int maxPvs = -1;
|
---|
| 1509 | for (i=0; i < viewcells.size(); i++)
|
---|
| 1510 | {
|
---|
| 1511 | ViewCell *vc = viewcells[i];
|
---|
| 1512 | const int p = vc->GetPvs().CountPvs();
|
---|
| 1513 | if (p > maxPvs)
|
---|
| 1514 | maxPvs = p;
|
---|
| 1515 | }
|
---|
| 1516 |
|
---|
| 1517 |
|
---|
| 1518 | for (i=0; i < viewcells.size(); i++) {
|
---|
| 1519 | ViewCell *vc = viewcells[i];
|
---|
| 1520 | // Mesh *m = vc->GetMesh();
|
---|
| 1521 |
|
---|
| 1522 |
|
---|
| 1523 | RgbColor c;
|
---|
| 1524 |
|
---|
| 1525 | if (!mShowPvsSizes)
|
---|
| 1526 | c = vc->GetColor();
|
---|
| 1527 | else {
|
---|
| 1528 | const float importance = (float)vc->GetPvs().CountPvs() / (float)maxPvs;
|
---|
| 1529 | c = RgbColor(importance, 1.0f - importance, 0.0f);
|
---|
| 1530 | }
|
---|
| 1531 | glColor3f(c.r, c.g, c.b);
|
---|
| 1532 |
|
---|
| 1533 | RenderViewCell(vc);
|
---|
| 1534 | }
|
---|
| 1535 |
|
---|
| 1536 | glDisable(GL_CLIP_PLANE0);
|
---|
| 1537 |
|
---|
| 1538 | }
|
---|
| 1539 |
|
---|
| 1540 |
|
---|
| 1541 |
|
---|
| 1542 |
|
---|
| 1543 |
|
---|
| 1544 | /***********************************************************************/
|
---|
| 1545 | /* GlDebuggerWidget implementation */
|
---|
| 1546 | /***********************************************************************/
|
---|
| 1547 |
|
---|
| 1548 |
|
---|
| 1549 | GlDebuggerWidget::GlDebuggerWidget(QtGlRendererBuffer *buf, QWidget *parent)
|
---|
| 1550 | : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), mRenderBuffer(buf)
|
---|
| 1551 | {
|
---|
| 1552 | // create the pbuffer
|
---|
| 1553 | //pbuffer = new QGLPixelBuffer(QSize(512, 512), format(), this);
|
---|
| 1554 | timerId = startTimer(20);
|
---|
| 1555 | setWindowTitle(("OpenGL pbuffers"));
|
---|
| 1556 | }
|
---|
| 1557 |
|
---|
| 1558 |
|
---|
| 1559 | GlDebuggerWidget::~GlDebuggerWidget()
|
---|
| 1560 | {
|
---|
| 1561 | mRenderBuffer->releaseFromDynamicTexture();
|
---|
| 1562 | glDeleteTextures(1, &dynamicTexture);
|
---|
| 1563 |
|
---|
| 1564 | DEL_PTR(mRenderBuffer);
|
---|
| 1565 | }
|
---|
| 1566 |
|
---|
| 1567 |
|
---|
| 1568 |
|
---|
| 1569 | RendererControlWidget::RendererControlWidget(QWidget * parent, Qt::WFlags f):
|
---|
| 1570 | QWidget(parent, f)
|
---|
| 1571 | {
|
---|
| 1572 |
|
---|
| 1573 | QVBoxLayout *vl = new QVBoxLayout;
|
---|
| 1574 | setLayout(vl);
|
---|
| 1575 |
|
---|
| 1576 | QWidget *vbox = new QGroupBox("ViewCells", this);
|
---|
| 1577 | layout()->addWidget(vbox);
|
---|
| 1578 |
|
---|
| 1579 | vl = new QVBoxLayout;
|
---|
| 1580 | vbox->setLayout(vl);
|
---|
| 1581 |
|
---|
| 1582 | QLabel *label = new QLabel("Granularity");
|
---|
| 1583 | vbox->layout()->addWidget(label);
|
---|
| 1584 |
|
---|
| 1585 | QSlider *slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1586 | vl->addWidget(slider);
|
---|
| 1587 | slider->show();
|
---|
| 1588 | slider->setRange(1, 10000);
|
---|
| 1589 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1590 | slider->setValue(200);
|
---|
| 1591 |
|
---|
| 1592 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetViewCellGranularity(int)));
|
---|
| 1593 |
|
---|
| 1594 | label = new QLabel("Filter size");
|
---|
| 1595 | vbox->layout()->addWidget(label);
|
---|
| 1596 |
|
---|
| 1597 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1598 | vbox->layout()->addWidget(slider);
|
---|
| 1599 | slider->show();
|
---|
| 1600 | slider->setRange(1, 100);
|
---|
| 1601 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1602 | slider->setValue(3);
|
---|
| 1603 |
|
---|
| 1604 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetVisibilityFilterSize(int)));
|
---|
| 1605 |
|
---|
| 1606 |
|
---|
| 1607 | label = new QLabel("Spatial Filter size");
|
---|
| 1608 | vbox->layout()->addWidget(label);
|
---|
| 1609 |
|
---|
| 1610 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1611 | vbox->layout()->addWidget(slider);
|
---|
| 1612 | slider->show();
|
---|
| 1613 | slider->setRange(1, 100);
|
---|
| 1614 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1615 | slider->setValue(10);
|
---|
| 1616 |
|
---|
| 1617 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetSpatialFilterSize(int)));
|
---|
| 1618 |
|
---|
| 1619 |
|
---|
| 1620 |
|
---|
| 1621 | QWidget *hbox = new QWidget(vbox);
|
---|
| 1622 | vl->addWidget(hbox);
|
---|
| 1623 | QHBoxLayout *hlayout = new QHBoxLayout;
|
---|
| 1624 | hbox->setLayout(hlayout);
|
---|
| 1625 |
|
---|
| 1626 | QCheckBox *cb = new QCheckBox("Show viewcells", hbox);
|
---|
| 1627 | hlayout->addWidget(cb);
|
---|
| 1628 | cb->setChecked(false);
|
---|
| 1629 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowViewCells(bool)));
|
---|
| 1630 |
|
---|
| 1631 | cb = new QCheckBox("Show render cost", hbox);
|
---|
| 1632 | hlayout->addWidget(cb);
|
---|
| 1633 | cb->setChecked(false);
|
---|
| 1634 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowRenderCost(bool)));
|
---|
| 1635 |
|
---|
| 1636 | cb = new QCheckBox("Show pvs sizes", hbox);
|
---|
| 1637 | hlayout->addWidget(cb);
|
---|
| 1638 | cb->setChecked(false);
|
---|
| 1639 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowPvsSizes(bool)));
|
---|
| 1640 |
|
---|
| 1641 | vbox->resize(800,100);
|
---|
| 1642 |
|
---|
| 1643 |
|
---|
| 1644 | vbox = new QGroupBox("Rendering", this);
|
---|
| 1645 | layout()->addWidget(vbox);
|
---|
| 1646 |
|
---|
| 1647 | vl = new QVBoxLayout;
|
---|
| 1648 | vbox->setLayout(vl);
|
---|
| 1649 |
|
---|
| 1650 |
|
---|
| 1651 |
|
---|
| 1652 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1653 | vbox->layout()->addWidget(slider);
|
---|
| 1654 | slider->show();
|
---|
| 1655 | slider->setRange(0, 1000);
|
---|
| 1656 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1657 | slider->setValue(1000);
|
---|
| 1658 |
|
---|
| 1659 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetSceneCut(int)));
|
---|
| 1660 |
|
---|
| 1661 | cb = new QCheckBox("Render errors", vbox);
|
---|
| 1662 | vbox->layout()->addWidget(cb);
|
---|
| 1663 | cb->setChecked(false);
|
---|
| 1664 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetRenderErrors(bool)));
|
---|
| 1665 |
|
---|
| 1666 | cb = new QCheckBox("Use filter", vbox);
|
---|
| 1667 | vbox->layout()->addWidget(cb);
|
---|
| 1668 | cb->setChecked(true);
|
---|
| 1669 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetUseFilter(bool)));
|
---|
| 1670 |
|
---|
| 1671 | cb = new QCheckBox("Use spatial filter", vbox);
|
---|
| 1672 | vbox->layout()->addWidget(cb);
|
---|
| 1673 | cb->setChecked(true);
|
---|
| 1674 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetUseSpatialFilter(bool)));
|
---|
| 1675 |
|
---|
| 1676 | cb = new QCheckBox("Render filter", vbox);
|
---|
| 1677 | vbox->layout()->addWidget(cb);
|
---|
| 1678 | cb->setChecked(true);
|
---|
| 1679 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetRenderFilter(bool)));
|
---|
| 1680 |
|
---|
| 1681 |
|
---|
| 1682 | cb = new QCheckBox("Cut view cells", vbox);
|
---|
| 1683 | vbox->layout()->addWidget(cb);
|
---|
| 1684 | cb->setChecked(false);
|
---|
| 1685 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetCutViewCells(bool)));
|
---|
| 1686 |
|
---|
| 1687 | cb = new QCheckBox("Cut scene", vbox);
|
---|
| 1688 | vbox->layout()->addWidget(cb);
|
---|
| 1689 | cb->setChecked(false);
|
---|
| 1690 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetCutScene(bool)));
|
---|
| 1691 |
|
---|
| 1692 |
|
---|
| 1693 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1694 | vbox->layout()->addWidget(slider);
|
---|
| 1695 | slider->show();
|
---|
| 1696 | slider->setRange(1, 1000);
|
---|
| 1697 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1698 | slider->setValue(500);
|
---|
| 1699 |
|
---|
| 1700 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetTopDistance(int)));
|
---|
| 1701 |
|
---|
| 1702 | cb = new QCheckBox("Top View", vbox);
|
---|
| 1703 | vbox->layout()->addWidget(cb);
|
---|
| 1704 | cb->setChecked(false);
|
---|
| 1705 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetTopView(bool)));
|
---|
| 1706 |
|
---|
| 1707 | vbox = new QGroupBox("PVS Errors", this);
|
---|
| 1708 | layout()->addWidget(vbox);
|
---|
| 1709 |
|
---|
| 1710 | vl = new QVBoxLayout;
|
---|
| 1711 | vbox->setLayout(vl);
|
---|
| 1712 |
|
---|
| 1713 | mPvsErrorWidget = new QListWidget(vbox);
|
---|
| 1714 | vbox->layout()->addWidget(mPvsErrorWidget);
|
---|
| 1715 |
|
---|
| 1716 | connect(mPvsErrorWidget,
|
---|
| 1717 | SIGNAL(doubleClicked(const QModelIndex &)),
|
---|
| 1718 | this,
|
---|
| 1719 | SLOT(PvsErrorClicked(const QModelIndex &)));
|
---|
| 1720 |
|
---|
| 1721 | QPushButton *button = new QPushButton("Next Error Frame", vbox);
|
---|
| 1722 | vbox->layout()->addWidget(button);
|
---|
| 1723 | connect(button, SIGNAL(clicked(void)), SLOT(FocusNextPvsErrorFrame(void)));
|
---|
| 1724 |
|
---|
| 1725 | setWindowTitle("Preprocessor Control Widget");
|
---|
| 1726 | adjustSize();
|
---|
| 1727 | }
|
---|
| 1728 |
|
---|
| 1729 |
|
---|
| 1730 |
|
---|
| 1731 | void
|
---|
| 1732 | RendererControlWidget::FocusNextPvsErrorFrame(void)
|
---|
| 1733 | {
|
---|
| 1734 |
|
---|
| 1735 |
|
---|
| 1736 | }
|
---|
| 1737 |
|
---|
| 1738 | void
|
---|
| 1739 | RendererControlWidget::UpdatePvsErrorItem(int row,
|
---|
| 1740 | GlRendererBuffer::PvsErrorEntry &pvsErrorEntry)
|
---|
| 1741 | {
|
---|
| 1742 |
|
---|
| 1743 | QListWidgetItem *i = mPvsErrorWidget->item(row);
|
---|
| 1744 | QString s;
|
---|
| 1745 | s.sprintf("%5.5f", pvsErrorEntry.mError);
|
---|
| 1746 | if (i) {
|
---|
| 1747 | i->setText(s);
|
---|
| 1748 | } else {
|
---|
| 1749 | new QListWidgetItem(s, mPvsErrorWidget);
|
---|
| 1750 | }
|
---|
| 1751 | mPvsErrorWidget->update();
|
---|
| 1752 | }
|
---|
| 1753 |
|
---|
| 1754 |
|
---|
| 1755 | void GlDebuggerWidget::initializeGL()
|
---|
| 1756 | {
|
---|
| 1757 | glMatrixMode(GL_PROJECTION);
|
---|
| 1758 | glLoadIdentity();
|
---|
| 1759 |
|
---|
| 1760 | glFrustum(-1, 1, -1, 1, 10, 100);
|
---|
| 1761 | glTranslatef(-0.5f, -0.5f, -0.5f);
|
---|
| 1762 | glTranslatef(0.0f, 0.0f, -15.0f);
|
---|
| 1763 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1764 |
|
---|
| 1765 | glEnable(GL_CULL_FACE);
|
---|
| 1766 | initCommon();
|
---|
| 1767 | initPbuffer();
|
---|
| 1768 |
|
---|
| 1769 | }
|
---|
| 1770 |
|
---|
| 1771 |
|
---|
| 1772 | void GlDebuggerWidget::resizeGL(int w, int h)
|
---|
| 1773 | {
|
---|
| 1774 | glViewport(0, 0, w, h);
|
---|
| 1775 | }
|
---|
| 1776 |
|
---|
| 1777 |
|
---|
| 1778 | void GlDebuggerWidget::paintGL()
|
---|
| 1779 | {
|
---|
| 1780 | // draw a spinning cube into the pbuffer..
|
---|
| 1781 | mRenderBuffer->makeCurrent();
|
---|
| 1782 |
|
---|
| 1783 | BeamSampleStatistics stats;
|
---|
| 1784 | mRenderBuffer->SampleBeamContributions(mSourceObject, mBeam, mSamples, stats);
|
---|
| 1785 |
|
---|
| 1786 | glFlush();
|
---|
| 1787 |
|
---|
| 1788 | // rendering directly to a texture is not supported on X11, unfortunately
|
---|
| 1789 | mRenderBuffer->updateDynamicTexture(dynamicTexture);
|
---|
| 1790 |
|
---|
| 1791 | // and use the pbuffer contents as a texture when rendering the
|
---|
| 1792 | // background and the bouncing cubes
|
---|
| 1793 | makeCurrent();
|
---|
| 1794 | glBindTexture(GL_TEXTURE_2D, dynamicTexture);
|
---|
| 1795 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1796 |
|
---|
| 1797 | // draw the background
|
---|
| 1798 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1799 | glPushMatrix();
|
---|
| 1800 | glLoadIdentity();
|
---|
| 1801 | glMatrixMode(GL_PROJECTION);
|
---|
| 1802 | glPushMatrix();
|
---|
| 1803 | glLoadIdentity();
|
---|
| 1804 |
|
---|
| 1805 | glPopMatrix();
|
---|
| 1806 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1807 | glPopMatrix();
|
---|
| 1808 | }
|
---|
| 1809 |
|
---|
| 1810 |
|
---|
| 1811 | void GlDebuggerWidget::initPbuffer()
|
---|
| 1812 | {
|
---|
| 1813 | // set up the pbuffer context
|
---|
| 1814 | mRenderBuffer->makeCurrent();
|
---|
| 1815 | /*mRenderBuffer->InitGL();
|
---|
| 1816 |
|
---|
| 1817 | glViewport(0, 0, mRenderBuffer->size().width(), mRenderBuffer->size().height());
|
---|
| 1818 | glMatrixMode(GL_PROJECTION);
|
---|
| 1819 | glLoadIdentity();
|
---|
| 1820 | glOrtho(-1, 1, -1, 1, -99, 99);
|
---|
| 1821 | glTranslatef(-0.5f, -0.5f, 0.0f);
|
---|
| 1822 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1823 | glLoadIdentity();
|
---|
| 1824 |
|
---|
| 1825 | glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);*/
|
---|
| 1826 |
|
---|
| 1827 | // generate a texture that has the same size/format as the pbuffer
|
---|
| 1828 | dynamicTexture = mRenderBuffer->generateDynamicTexture();
|
---|
| 1829 |
|
---|
| 1830 | // bind the dynamic texture to the pbuffer - this is a no-op under X11
|
---|
| 1831 | mRenderBuffer->bindToDynamicTexture(dynamicTexture);
|
---|
| 1832 | makeCurrent();
|
---|
| 1833 | }
|
---|
| 1834 |
|
---|
| 1835 | void GlDebuggerWidget::initCommon()
|
---|
| 1836 | {
|
---|
| 1837 | glEnable(GL_TEXTURE_2D);
|
---|
| 1838 | glEnable(GL_DEPTH_TEST);
|
---|
| 1839 |
|
---|
| 1840 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
|
---|
| 1841 | }
|
---|
| 1842 |
|
---|
| 1843 |
|
---|
| 1844 |
|
---|
| 1845 | }
|
---|