[589] | 1 | #include "Mesh.h"
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| 2 | #include "GlRenderer.h"
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| 3 | #include "ViewCellsManager.h"
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| 4 | #include "SceneGraph.h"
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| 5 | #include "Pvs.h"
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| 6 | #include "Viewcell.h"
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| 7 | #include "Beam.h"
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[532] | 8 | #include "KdTree.h"
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[589] | 9 | #include "Environment.h"
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[513] | 10 |
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[811] | 11 | //#define GL_GLEXT_PROTOTYPES
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[589] | 12 | #include <GL/glext.h>
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[512] | 13 | #include <Cg/cg.h>
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[589] | 14 | #include <Cg/cgGL.h>
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| 15 |
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[608] | 16 | #include <QVBoxLayout>
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| 17 |
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[863] | 18 | namespace GtpVisibilityPreprocessor {
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[860] | 19 |
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[512] | 20 | static CGcontext sCgContext = NULL;
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[589] | 21 | static CGprogram sCgFragmentProgram = NULL;
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| 22 | static CGprofile sCgFragmentProfile;
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[516] | 23 |
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[589] | 24 | GLuint frontDepthMap;
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| 25 | GLuint backDepthMap;
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| 26 |
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| 27 | const int depthMapSize = 512;
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| 28 | static vector<int> sQueries;
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| 29 |
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| 30 | GlRendererWidget *rendererWidget = NULL;
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| 31 | GlDebuggerWidget *debuggerWidget = NULL;
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| 32 |
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| 33 |
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| 34 | #ifdef _WIN32
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| 35 | PFNGLGENOCCLUSIONQUERIESNVPROC glGenOcclusionQueriesNV;
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| 36 | PFNGLBEGINOCCLUSIONQUERYNVPROC glBeginOcclusionQueryNV;
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| 37 | PFNGLENDOCCLUSIONQUERYNVPROC glEndOcclusionQueryNV;
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| 38 | PFNGLGETOCCLUSIONQUERYUIVNVPROC glGetOcclusionQueryuivNV;
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[811] | 39 |
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| 40 | //PFNGLGENQUERIESARBPROC glGenQueriesARB;
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| 41 | //PFNGLBEGINQUERYARBPROC glBeginQueryARB;
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| 42 | //PFNGLENDQUERYARBPROC glEndQueryARB;
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| 43 | //PFNGLGETQUERYUIVARBPROC glGetQueryuivARB;
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[589] | 44 | #endif
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| 45 |
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[859] | 46 | bool useFilter = false;
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| 47 |
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[589] | 48 | GlRenderer::GlRenderer(SceneGraph *sceneGraph,
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| 49 | ViewCellsManager *viewCellsManager,
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| 50 | KdTree *tree):
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| 51 | Renderer(sceneGraph, viewCellsManager),
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| 52 | mKdTree(tree)
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| 53 | {
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| 54 | mSceneGraph->CollectObjects(&mObjects);
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| 55 | mViewPoint = mSceneGraph->GetBox().Center();
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| 56 | mViewDirection = Vector3(0,0,1);
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[608] | 57 |
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[589] | 58 | // timerId = startTimer(10);
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| 59 | // debug coords for atlanta
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[608] | 60 | // mViewPoint = Vector3(3473, 6.778, -1699);
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| 61 | // mViewDirection = Vector3(-0.2432, 0, 0.97);
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[589] | 62 |
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| 63 | mFrame = 0;
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| 64 | mWireFrame = false;
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| 65 | environment->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
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[746] | 66 | mSnapErrorFrames = true;
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| 67 | mSnapPrefix = "snap/";
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| 68 | mUseForcedColors = false;
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[811] | 69 |
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| 70 | mUseGlLists = true;
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| 71 |
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[589] | 72 | }
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| 73 |
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| 74 | GlRenderer::~GlRenderer()
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| 75 | {
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| 76 | cerr<<"gl renderer destructor..\n";
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| 77 | if (sCgFragmentProgram)
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| 78 | cgDestroyProgram(sCgFragmentProgram);
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| 79 | if (sCgContext)
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| 80 | cgDestroyContext(sCgContext);
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| 81 | cerr<<"done."<<endl;
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| 82 | }
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| 83 |
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| 84 |
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[517] | 85 | static void handleCgError()
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[516] | 86 | {
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[525] | 87 | Debug << "Cg error: " << cgGetErrorString(cgGetError()) << endl;
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[517] | 88 | exit(1);
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[589] | 89 | }
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| 90 |
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| 91 | void
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| 92 | GlRenderer::RenderIntersectable(Intersectable *object)
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| 93 | {
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| 94 |
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| 95 | glPushAttrib(GL_CURRENT_BIT);
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| 96 | if (mUseFalseColors)
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| 97 | SetupFalseColor(object->mId);
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| 98 |
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| 99 |
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| 100 | switch (object->Type()) {
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| 101 | case Intersectable::MESH_INSTANCE:
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| 102 | RenderMeshInstance((MeshInstance *)object);
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| 103 | break;
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| 104 | case Intersectable::VIEW_CELL:
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| 105 | RenderViewCell(dynamic_cast<ViewCell *>(object));
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| 106 | break;
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| 107 | default:
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| 108 | cerr<<"Rendering this object not yet implemented\n";
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| 109 | break;
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| 110 | }
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| 111 |
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| 112 | glPopAttrib();
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| 113 | }
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| 114 |
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| 115 |
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| 116 | void
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| 117 | GlRenderer::RenderViewCell(ViewCell *vc)
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| 118 | {
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| 119 | if (vc->GetMesh()) {
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| 120 |
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[599] | 121 | if (!mUseFalseColors) {
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| 122 | if (vc->GetValid())
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| 123 | glColor3f(0,1,0);
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| 124 | else
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| 125 | glColor3f(0,0,1);
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| 126 | }
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[589] | 127 |
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| 128 | RenderMesh(vc->GetMesh());
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[599] | 129 | } else {
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| 130 | // render viewcells in the subtree
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| 131 | if (!vc->IsLeaf()) {
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| 132 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 133 |
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| 134 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 135 | for (; it != vci->mChildren.end(); ++it) {
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| 136 | RenderViewCell(*it);
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| 137 | }
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[685] | 138 | } else {
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| 139 | // cerr<<"Empty viewcell mesh\n";
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[599] | 140 | }
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[589] | 141 | }
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| 142 | }
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| 143 |
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[599] | 144 |
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[589] | 145 | void
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| 146 | GlRenderer::RenderMeshInstance(MeshInstance *mi)
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| 147 | {
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| 148 | RenderMesh(mi->GetMesh());
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| 149 | }
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| 150 |
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| 151 | void
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| 152 | GlRenderer::SetupFalseColor(const int id)
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| 153 | {
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| 154 | // swap bits of the color
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| 155 | glColor3ub(id&255, (id>>8)&255, (id>>16)&255);
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| 156 | }
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| 157 |
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| 158 |
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| 159 | int GlRenderer::GetId(int r, int g, int b) const
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| 160 | {
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| 161 | return r + (g << 8) + (b << 16);
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| 162 | }
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| 163 |
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| 164 | void
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| 165 | GlRenderer::SetupMaterial(Material *m)
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| 166 | {
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| 167 | if (m)
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| 168 | glColor3fv(&(m->mDiffuseColor.r));
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| 169 | }
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| 170 |
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| 171 | void
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| 172 | GlRenderer::RenderMesh(Mesh *mesh)
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| 173 | {
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| 174 | int i = 0;
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| 175 |
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[746] | 176 | if (!mUseFalseColors && !mUseForcedColors)
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[589] | 177 | SetupMaterial(mesh->mMaterial);
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| 178 |
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| 179 | for (i=0; i < mesh->mFaces.size(); i++) {
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| 180 | if (mWireFrame)
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| 181 | glBegin(GL_LINE_LOOP);
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| 182 | else
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| 183 | glBegin(GL_POLYGON);
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| 184 |
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| 185 | Face *face = mesh->mFaces[i];
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| 186 | for (int j = 0; j < face->mVertexIndices.size(); j++) {
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| 187 | glVertex3fv(&mesh->mVertices[face->mVertexIndices[j]].x);
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| 188 | }
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| 189 | glEnd();
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| 190 | }
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| 191 | }
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| 192 |
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| 193 | void
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| 194 | GlRenderer::InitGL()
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| 195 | {
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| 196 | glMatrixMode(GL_PROJECTION);
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| 197 | glLoadIdentity();
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| 198 |
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| 199 | glMatrixMode(GL_MODELVIEW);
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| 200 | glLoadIdentity();
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| 201 |
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| 202 | glEnable(GL_CULL_FACE);
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| 203 | glShadeModel(GL_FLAT);
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| 204 | glEnable(GL_DEPTH_TEST);
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| 205 | glEnable(GL_CULL_FACE);
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| 206 |
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| 207 | glGenOcclusionQueriesNV = (PFNGLGENOCCLUSIONQUERIESNVPROC)
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| 208 | wglGetProcAddress("glGenOcclusionQueriesNV");
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| 209 | glBeginOcclusionQueryNV = (PFNGLBEGINOCCLUSIONQUERYNVPROC)
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| 210 | wglGetProcAddress("glBeginOcclusionQueryNV");
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| 211 | glEndOcclusionQueryNV = (PFNGLENDOCCLUSIONQUERYNVPROC)
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| 212 | wglGetProcAddress("glEndOcclusionQueryNV");
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| 213 | glGetOcclusionQueryuivNV = (PFNGLGETOCCLUSIONQUERYUIVNVPROC)
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[540] | 214 | wglGetProcAddress("glGetOcclusionQueryuivNV");
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[589] | 215 |
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| 216 |
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[811] | 217 | #if 0
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| 218 | glGenQueriesARB = (PFNGLGENDQUERIESARBPROC)
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| 219 | wglGetProcAddress("glGenQueriesARB");
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| 220 | glBeginQueryARB = (PFNGLBEGINQUERYARBPROC)
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| 221 | wglGetProcAddress("glBeginQueryARB");
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| 222 | glEndQueryARB = (PFNGLENDQUERYARBPROC)
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| 223 | wglGetProcAddress("glEndQueryARB");
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| 224 | glGetQueryuivARB = (PFNGLGETQUERYUIVARBPROC)
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| 225 | wglGetProcAddress("glGetQueryuivARB");
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[746] | 226 |
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[811] | 227 | #endif
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| 228 |
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| 229 |
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[746] | 230 | #if 0
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| 231 | GLfloat mat_ambient[] = { 0.5, 0.5, 0.5, 1.0 };
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| 232 | /* mat_specular and mat_shininess are NOT default values */
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| 233 | GLfloat mat_diffuse[] = { 1.0, 1.0, 1.0, 1.0 };
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| 234 | GLfloat mat_specular[] = { 0.3, 0.3, 0.3, 1.0 };
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| 235 | GLfloat mat_shininess[] = { 1.0 };
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| 236 |
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| 237 | GLfloat light_ambient[] = { 0.2, 0.2, 0.2, 1.0 };
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| 238 | GLfloat light_diffuse[] = { 0.4, 0.4, 0.4, 1.0 };
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| 239 | GLfloat light_specular[] = { 0.3, 0.3, 0.3, 1.0 };
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| 240 |
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| 241 | GLfloat lmodel_ambient[] = { 0.3, 0.3, 0.3, 1.0 };
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| 242 |
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| 243 |
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| 244 | // default Material
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| 245 | glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
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| 246 | glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
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| 247 | glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
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| 248 | glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
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| 249 |
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| 250 | // a light
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| 251 | glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
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| 252 | glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
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| 253 | glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
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| 254 |
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| 255 | glLightfv(GL_LIGHT1, GL_AMBIENT, light_ambient);
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| 256 | glLightfv(GL_LIGHT1, GL_DIFFUSE, light_diffuse);
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| 257 | glLightfv(GL_LIGHT1, GL_SPECULAR, light_specular);
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| 258 |
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| 259 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
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| 260 |
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| 261 | glEnable(GL_LIGHTING);
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| 262 | glEnable(GL_LIGHT0);
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| 263 | glEnable(GL_LIGHT1);
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| 264 |
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| 265 |
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| 266 | // set position of the light
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| 267 | GLfloat infinite_light[] = { 1.0, 0.8, 1.0, 0.0 };
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| 268 | glLightfv (GL_LIGHT0, GL_POSITION, infinite_light);
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| 269 |
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| 270 | // set position of the light2
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| 271 | GLfloat infinite_light2[] = { -0.3, 1.5, 1.0, 0.0 };
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| 272 | glLightfv (GL_LIGHT1, GL_POSITION, infinite_light2);
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| 273 |
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| 274 | glColorMaterial( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
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| 275 | // glColorMaterial( GL_FRONT_AND_BACK, GL_SPECULAR);
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| 276 | glEnable(GL_COLOR_MATERIAL);
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| 277 |
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| 278 | glShadeModel( GL_FLAT );
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| 279 |
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| 280 | glDepthFunc( GL_LESS );
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| 281 | glEnable( GL_DEPTH_TEST );
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| 282 | #endif
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| 283 |
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| 284 | glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
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| 285 |
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| 286 | glEnable( GL_NORMALIZE );
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| 287 |
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| 288 | glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
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[589] | 289 | }
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| 290 |
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| 291 | void
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| 292 | GlRendererWidget::RenderInfo()
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| 293 | {
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| 294 | QString s;
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[608] | 295 | int vc = 0;
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| 296 | if (mViewCellsManager)
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| 297 | vc = mViewCellsManager->GetViewCells().size();
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[746] | 298 | int filter = 0;
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| 299 | if (mViewCellsManager)
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| 300 | filter = mViewCellsManager->GetMaxFilterSize();
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| 301 |
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| 302 | 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\%",
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[589] | 303 | mFrame,
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| 304 | mViewPoint.x,
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| 305 | mViewPoint.y,
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| 306 | mViewPoint.z,
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| 307 | mViewDirection.x,
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| 308 | mViewDirection.y,
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[608] | 309 | mViewDirection.z,
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[746] | 310 | vc,
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| 311 |
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| 312 | filter,
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| 313 | mPvsSize,
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| 314 | mRenderError*100.0f
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[589] | 315 | );
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[746] | 316 |
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| 317 | glColor3f(0.0f,0.0f,0.0f);
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[589] | 318 | renderText(0,20,s);
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[746] | 319 |
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| 320 | if (mShowRenderCost) {
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| 321 | static vector<float> costFunction;
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| 322 | static float maxCost = -1;
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| 323 | if (costFunction.size()==0) {
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| 324 | ViewCellsTree *tree = mViewCellsManager->GetViewCellsTree();
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| 325 | if (tree) {
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| 326 | tree->GetCostFunction(costFunction);
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| 327 | maxCost = -1;
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| 328 | for (int i=0; i < costFunction.size(); i++) {
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| 329 | // cout<<i<<":"<<costFunction[i]<<" ";
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| 330 | if (costFunction[i] > maxCost)
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| 331 | maxCost = costFunction[i];
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| 332 | }
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| 333 | }
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| 334 | }
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| 335 |
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| 336 |
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| 337 | int currentPos = mViewCellsManager->GetViewCells().size();
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| 338 | float currentCost=-1;
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| 339 |
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| 340 | if (currentPos < costFunction.size())
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| 341 | currentCost = costFunction[currentPos];
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| 342 | #if 0
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| 343 | cout<<"costFunction.size()="<<costFunction.size()<<endl;
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| 344 | cout<<"CP="<<currentPos<<endl;
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| 345 | cout<<"MC="<<maxCost<<endl;
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| 346 | cout<<"CC="<<currentCost<<endl;
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| 347 | #endif
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| 348 | if (costFunction.size()) {
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| 349 | glDisable(GL_DEPTH_TEST);
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| 350 | // init ortographic projection
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| 351 | glMatrixMode(GL_PROJECTION);
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| 352 | glPushMatrix();
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| 353 |
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| 354 | glLoadIdentity();
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| 355 | gluOrtho2D(0, 1.0f, 0, 1.0f);
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| 356 |
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| 357 | glTranslatef(0.1f, 0.1f, 0.0f);
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| 358 | glScalef(0.8f, 0.8f, 1.0f);
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| 359 | glMatrixMode(GL_MODELVIEW);
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| 360 | glLoadIdentity();
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| 361 |
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| 362 | glColor3f(1.0f,0,0);
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| 363 | glBegin(GL_LINE_STRIP);
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| 364 | // glVertex3f(0,0,0);
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| 365 |
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| 366 | for (int i=0; i < costFunction.size(); i++) {
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| 367 | float x = i/(float)costFunction.size();
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| 368 | float y = costFunction[i]/(maxCost*0.5f);
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| 369 | glVertex3f(x,y,0.0f);
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| 370 | }
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| 371 | glEnd();
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| 372 |
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| 373 | glColor3f(1.0f,0,0);
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| 374 | glBegin(GL_LINES);
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| 375 | float x = currentPos/(float)costFunction.size();
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| 376 | glVertex3f(x,0.0,0.0f);
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| 377 | glVertex3f(x,1.0f,0.0f);
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| 378 | glEnd();
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| 379 |
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| 380 | glColor3f(0.0f,0,0);
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| 381 | // show a grid
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| 382 | glBegin(GL_LINE_LOOP);
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| 383 | glVertex3f(0,0,0.0f);
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| 384 | glVertex3f(1,0,0.0f);
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| 385 | glVertex3f(1,1,0.0f);
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| 386 | glVertex3f(0,1,0.0f);
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| 387 | glEnd();
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| 388 |
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| 389 | glBegin(GL_LINES);
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| 390 | for (int i=0; i < 50000 && i < costFunction.size(); i+=10000) {
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| 391 | float x = i/(float)costFunction.size();
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| 392 | glVertex3f(x,0.0,0.0f);
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| 393 | glVertex3f(x,1.0f,0.0f);
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| 394 | }
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| 395 |
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| 396 | for (int i=0; i < maxCost; i+=100) {
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| 397 | float y = i/(maxCost*0.5f);
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| 398 | glVertex3f(0,y,0.0f);
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| 399 | glVertex3f(1,y,0.0f);
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| 400 | }
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| 401 |
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| 402 | glEnd();
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| 403 |
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| 404 |
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| 405 | // restore the projection matrix
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| 406 | glMatrixMode(GL_PROJECTION);
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| 407 | glPopMatrix();
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| 408 | glMatrixMode(GL_MODELVIEW);
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| 409 | glEnable(GL_DEPTH_TEST);
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| 410 |
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| 411 | }
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| 412 | }
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[589] | 413 | }
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| 414 |
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| 415 |
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| 416 | void
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[811] | 417 | GlRenderer::SetupProjection(const int w, const int h, const float angle)
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[589] | 418 | {
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| 419 | glViewport(0, 0, w, h);
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| 420 | glMatrixMode(GL_PROJECTION);
|
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| 421 | glLoadIdentity();
|
---|
[811] | 422 | gluPerspective(angle, 1.0, 0.1, 2.0*Magnitude(mSceneGraph->GetBox().Diagonal()));
|
---|
[589] | 423 | glMatrixMode(GL_MODELVIEW);
|
---|
| 424 | }
|
---|
| 425 |
|
---|
| 426 | void
|
---|
| 427 | GlRenderer::SetupCamera()
|
---|
| 428 | {
|
---|
| 429 | Vector3 target = mViewPoint + mViewDirection;
|
---|
[811] | 430 |
|
---|
[589] | 431 | Vector3 up(0,1,0);
|
---|
| 432 |
|
---|
[811] | 433 | if (abs(DotProd(mViewDirection, up)) > 0.99f)
|
---|
| 434 | up = Vector3(1, 0, 0);
|
---|
| 435 |
|
---|
[589] | 436 | glLoadIdentity();
|
---|
| 437 | gluLookAt(mViewPoint.x, mViewPoint.y, mViewPoint.z,
|
---|
| 438 | target.x, target.y, target.z,
|
---|
| 439 | up.x, up.y, up.z);
|
---|
| 440 | }
|
---|
| 441 |
|
---|
[811] | 442 |
|
---|
[589] | 443 | void
|
---|
[811] | 444 | GlRendererBuffer::EvalRenderCostSample(
|
---|
| 445 | RenderCostSample &sample
|
---|
| 446 | )
|
---|
| 447 | {
|
---|
| 448 | mViewCellsManager->GetViewPoint(mViewPoint);
|
---|
| 449 | cout<<mViewPoint<<endl;
|
---|
| 450 |
|
---|
| 451 | // take a render cost sample by rendering a cube
|
---|
| 452 | Vector3 directions[6];
|
---|
| 453 | directions[0] = Vector3(1,0,0);
|
---|
| 454 | directions[1] = Vector3(0,1,0);
|
---|
| 455 | directions[2] = Vector3(0,0,1);
|
---|
| 456 | directions[3] = Vector3(-1,0,0);
|
---|
| 457 | directions[4] = Vector3(0,-1,0);
|
---|
| 458 | directions[5] = Vector3(0,0,-1);
|
---|
| 459 |
|
---|
| 460 | sample.mVisibleObjects = 0;
|
---|
| 461 |
|
---|
| 462 | int i, j;
|
---|
| 463 |
|
---|
| 464 | // reset object visibility
|
---|
| 465 | for (i=0; i < mObjects.size(); i++) {
|
---|
| 466 | mObjects[i]->mCounter = 0;
|
---|
| 467 | }
|
---|
| 468 | mFrame++;
|
---|
| 469 | for (i=0; i < 6; i++) {
|
---|
| 470 | mViewDirection = directions[i];
|
---|
| 471 | SetupCamera();
|
---|
| 472 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
|
---|
| 473 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 474 |
|
---|
| 475 | glDepthFunc( GL_LESS );
|
---|
| 476 |
|
---|
| 477 | mUseFalseColors = true;
|
---|
| 478 |
|
---|
| 479 | RenderScene();
|
---|
| 480 |
|
---|
| 481 | if (1) {
|
---|
| 482 | char filename[256];
|
---|
| 483 | sprintf(filename, "snap/frame-%04d-%d.png", mFrame, i);
|
---|
| 484 | QImage im = toImage();
|
---|
| 485 | im.save(filename, "PNG");
|
---|
| 486 | }
|
---|
| 487 |
|
---|
| 488 | bool useItemBuffer = false;
|
---|
| 489 |
|
---|
| 490 | if (useItemBuffer) {
|
---|
| 491 | // read back the texture
|
---|
| 492 | glReadPixels(0, 0,
|
---|
| 493 | GetWidth(), GetHeight(),
|
---|
| 494 | GL_RGBA,
|
---|
| 495 | GL_UNSIGNED_BYTE,
|
---|
| 496 | mPixelBuffer);
|
---|
| 497 |
|
---|
| 498 | int x, y;
|
---|
| 499 | unsigned int *p = mPixelBuffer;
|
---|
| 500 | for (y = 0; y < GetHeight(); y++)
|
---|
| 501 | for (x = 0; x < GetWidth(); x++, p++) {
|
---|
| 502 | unsigned int id = (*p) & 0xFFFFFF;
|
---|
| 503 | if (id != 0xFFFFFF)
|
---|
| 504 | mObjects[id]->mCounter++;
|
---|
| 505 | }
|
---|
| 506 |
|
---|
| 507 | } else {
|
---|
| 508 |
|
---|
| 509 | // glDepthFunc( GL_LEQUAL );
|
---|
| 510 | glDepthFunc( GL_LEQUAL );
|
---|
| 511 |
|
---|
| 512 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
| 513 | glDepthMask(GL_FALSE);
|
---|
| 514 |
|
---|
| 515 | // now issue queries for all objects
|
---|
| 516 | for (j = 0; j < mObjects.size(); j++) {
|
---|
| 517 | int q;
|
---|
| 518 | for (q = 0; j + q < mObjects.size() && q < mOcclusionQueries.size(); q++) {
|
---|
| 519 | glBeginOcclusionQueryNV(mOcclusionQueries[q]);
|
---|
| 520 | RenderIntersectable(mObjects[j+q]);
|
---|
| 521 | glEndOcclusionQueryNV();
|
---|
| 522 | }
|
---|
| 523 |
|
---|
| 524 |
|
---|
| 525 | // collect results of the queries
|
---|
| 526 | for (q = 0; j + q < mObjects.size() && q < mOcclusionQueries.size(); q++) {
|
---|
| 527 | unsigned int pixelCount;
|
---|
| 528 | // reenable other state
|
---|
| 529 |
|
---|
| 530 | #if 1
|
---|
| 531 | do {
|
---|
| 532 | glGetOcclusionQueryuivNV(mOcclusionQueries[q],
|
---|
| 533 | GL_PIXEL_COUNT_AVAILABLE_NV,
|
---|
| 534 | &pixelCount);
|
---|
| 535 | if (!pixelCount)
|
---|
| 536 | cout<<"W";
|
---|
| 537 | } while(!pixelCount);
|
---|
| 538 | #endif
|
---|
| 539 |
|
---|
| 540 | glGetOcclusionQueryuivNV(mOcclusionQueries[q],
|
---|
| 541 | GL_PIXEL_COUNT_NV,
|
---|
| 542 | &pixelCount);
|
---|
| 543 | // if (pixelCount)
|
---|
| 544 | // cout<<"q="<<mOcclusionQueries[q]<<" pc="<<pixelCount<<" ";
|
---|
| 545 | mObjects[j+q]->mCounter += pixelCount;
|
---|
| 546 | }
|
---|
| 547 | j += q;
|
---|
| 548 | }
|
---|
| 549 |
|
---|
| 550 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 551 | glDepthMask(GL_TRUE);
|
---|
| 552 | }
|
---|
| 553 |
|
---|
| 554 |
|
---|
| 555 | }
|
---|
| 556 | // now evaluate the statistics over that sample
|
---|
| 557 | // currently only the number of visible objects is taken into account
|
---|
| 558 | sample.Reset();
|
---|
| 559 | for (j = 0; j < mObjects.size(); j++) {
|
---|
| 560 | if (mObjects[j]->mCounter) {
|
---|
| 561 | sample.mVisibleObjects++;
|
---|
| 562 | sample.mVisiblePixels += mObjects[j]->mCounter;
|
---|
| 563 | }
|
---|
| 564 | }
|
---|
| 565 | cout<<"RS="<<sample.mVisibleObjects<<" ";
|
---|
| 566 | }
|
---|
| 567 |
|
---|
| 568 | void
|
---|
| 569 | GlRendererBuffer::SampleRenderCost(
|
---|
| 570 | const int n,
|
---|
| 571 | vector<RenderCostSample> &samples
|
---|
| 572 | )
|
---|
| 573 | {
|
---|
| 574 | makeCurrent();
|
---|
| 575 |
|
---|
| 576 | if (mPixelBuffer == NULL)
|
---|
| 577 | mPixelBuffer = new unsigned int[GetWidth()*GetHeight()];
|
---|
| 578 |
|
---|
| 579 | SetupProjection(GetHeight(), GetHeight(), 90.0f);
|
---|
| 580 |
|
---|
| 581 | samples.resize(n);
|
---|
| 582 | halton.Reset();
|
---|
| 583 |
|
---|
| 584 | int i;
|
---|
| 585 | int numQ = 500;
|
---|
| 586 |
|
---|
| 587 | if (mOcclusionQueries.size() < numQ) {
|
---|
| 588 | cout<<"allocating occ queries..."<<endl;
|
---|
| 589 |
|
---|
| 590 | numQ;
|
---|
| 591 | unsigned int *queries = new unsigned int[numQ];
|
---|
| 592 | for (i=0; i < numQ; i++)
|
---|
| 593 | queries[i] = 111;
|
---|
| 594 |
|
---|
| 595 | glGenOcclusionQueriesNV(numQ, queries);
|
---|
| 596 |
|
---|
| 597 | mOcclusionQueries.resize(numQ);
|
---|
| 598 |
|
---|
| 599 | for (i=0; i < numQ; i++)
|
---|
| 600 | mOcclusionQueries[i] = queries[i];
|
---|
| 601 |
|
---|
| 602 | delete queries;
|
---|
| 603 | }
|
---|
| 604 |
|
---|
| 605 | for (i=0; i < n; i++)
|
---|
| 606 | EvalRenderCostSample(
|
---|
| 607 | samples[i]
|
---|
| 608 | );
|
---|
| 609 |
|
---|
| 610 | doneCurrent();
|
---|
| 611 |
|
---|
| 612 | }
|
---|
| 613 |
|
---|
| 614 |
|
---|
| 615 | void
|
---|
[589] | 616 | GlRendererBuffer::RandomViewPoint()
|
---|
| 617 | {
|
---|
| 618 |
|
---|
| 619 |
|
---|
| 620 | // do not use this function since it could return different viewpoints for
|
---|
| 621 | // different executions of the algorithm
|
---|
| 622 |
|
---|
| 623 | //mViewCellsManager->GetViewPoint(mViewPoint);
|
---|
| 624 |
|
---|
| 625 | while (1) {
|
---|
| 626 | Vector3 pVector = Vector3(halton.GetNumber(1),
|
---|
| 627 | halton.GetNumber(2),
|
---|
| 628 | halton.GetNumber(3));
|
---|
| 629 |
|
---|
| 630 | mViewPoint = mSceneGraph->GetBox().GetPoint(pVector);
|
---|
| 631 | ViewCell *v = mViewCellsManager->GetViewCell(mViewPoint);
|
---|
| 632 | if (v && v->GetValid())
|
---|
| 633 | break;
|
---|
| 634 | // generate a new vector
|
---|
| 635 | halton.GenerateNext();
|
---|
| 636 | }
|
---|
| 637 |
|
---|
| 638 |
|
---|
| 639 | Vector3 dVector = Vector3(2*M_PI*halton.GetNumber(4),
|
---|
| 640 | M_PI*halton.GetNumber(5),
|
---|
| 641 | 0.0f);
|
---|
| 642 |
|
---|
| 643 | mViewDirection = Normalize(Vector3(sin(dVector.x),
|
---|
| 644 | // cos(dVector.y),
|
---|
| 645 | 0.0f,
|
---|
| 646 | cos(dVector.x)));
|
---|
| 647 | halton.GenerateNext();
|
---|
| 648 | }
|
---|
| 649 |
|
---|
| 650 |
|
---|
[563] | 651 | GlRendererBuffer::GlRendererBuffer(const int w,
|
---|
| 652 | const int h,
|
---|
| 653 | SceneGraph *sceneGraph,
|
---|
| 654 | ViewCellsManager *viewcells,
|
---|
| 655 | KdTree *tree):
|
---|
| 656 | QGLPixelBuffer(QSize(w, h)), GlRenderer(sceneGraph, viewcells, tree) {
|
---|
| 657 |
|
---|
[811] | 658 | environment->GetIntValue("Preprocessor.pvsRenderErrorSamples", mPvsStatFrames);
|
---|
| 659 | mPvsErrorBuffer.resize(mPvsStatFrames);
|
---|
| 660 | ClearErrorBuffer();
|
---|
[589] | 661 |
|
---|
[811] | 662 | mPixelBuffer = NULL;
|
---|
| 663 |
|
---|
| 664 | makeCurrent();
|
---|
| 665 | InitGL();
|
---|
| 666 | doneCurrent();
|
---|
| 667 |
|
---|
| 668 | }
|
---|
| 669 |
|
---|
[589] | 670 | float
|
---|
[713] | 671 | GlRendererBuffer::GetPixelError(int &pvsSize)
|
---|
[589] | 672 | {
|
---|
| 673 | float pErrorPixels = -1.0f;
|
---|
[713] | 674 |
|
---|
[589] | 675 | glReadBuffer(GL_BACK);
|
---|
| 676 |
|
---|
| 677 | // mUseFalseColors = true;
|
---|
| 678 |
|
---|
| 679 | mUseFalseColors = false;
|
---|
| 680 |
|
---|
| 681 | static int query = -1;
|
---|
| 682 | unsigned int pixelCount;
|
---|
| 683 |
|
---|
| 684 | if (query == -1)
|
---|
| 685 | glGenOcclusionQueriesNV(1, (unsigned int *)&query);
|
---|
| 686 |
|
---|
| 687 | if (mDetectEmptyViewSpace) {
|
---|
| 688 | // now check whether any backfacing polygon would pass the depth test
|
---|
| 689 | SetupCamera();
|
---|
| 690 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 691 | glEnable( GL_CULL_FACE );
|
---|
| 692 |
|
---|
| 693 | RenderScene();
|
---|
| 694 |
|
---|
| 695 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
| 696 | glDepthMask(GL_FALSE);
|
---|
| 697 | glDisable( GL_CULL_FACE );
|
---|
| 698 |
|
---|
| 699 | glBeginOcclusionQueryNV(query);
|
---|
| 700 |
|
---|
| 701 | RenderScene();
|
---|
| 702 |
|
---|
| 703 | glEndOcclusionQueryNV();
|
---|
| 704 |
|
---|
| 705 | // at this point, if possible, go and do some other computation
|
---|
| 706 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 707 | glDepthMask(GL_TRUE);
|
---|
| 708 | glEnable( GL_CULL_FACE );
|
---|
| 709 |
|
---|
| 710 | // reenable other state
|
---|
| 711 | glGetOcclusionQueryuivNV(query,
|
---|
| 712 | GL_PIXEL_COUNT_NV,
|
---|
| 713 | &pixelCount);
|
---|
| 714 |
|
---|
| 715 | if (pixelCount > 0)
|
---|
| 716 | return -1.0f; // backfacing polygon found -> not a valid viewspace sample
|
---|
| 717 | } else
|
---|
| 718 | glDisable( GL_CULL_FACE );
|
---|
| 719 |
|
---|
| 720 |
|
---|
[713] | 721 | ViewCell *viewcell = NULL;
|
---|
| 722 |
|
---|
| 723 | PrVs prvs;
|
---|
| 724 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 725 | mViewCellsManager->GetPrVS(mViewPoint, prvs);
|
---|
| 726 | viewcell = prvs.mViewCell;
|
---|
| 727 |
|
---|
| 728 | // ViewCell *viewcell = mViewCellsManager->GetViewCell(mViewPoint);
|
---|
| 729 | pvsSize = 0;
|
---|
[589] | 730 | if (viewcell) {
|
---|
| 731 | SetupCamera();
|
---|
| 732 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 733 |
|
---|
| 734 | glColorMask(GL_FALSE, GL_TRUE, GL_FALSE, GL_FALSE);
|
---|
[746] | 735 |
|
---|
[589] | 736 | // Render PVS
|
---|
| 737 | std::map<Intersectable *,
|
---|
| 738 | PvsData<Intersectable *>,
|
---|
| 739 | LtSample<Intersectable *> >::const_iterator it = viewcell->GetPvs().mEntries.begin();
|
---|
[713] | 740 |
|
---|
| 741 | pvsSize = viewcell->GetPvs().mEntries.size();
|
---|
[589] | 742 |
|
---|
| 743 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
|
---|
| 744 | Intersectable *object = (*it).first;
|
---|
| 745 | RenderIntersectable(object);
|
---|
| 746 | }
|
---|
| 747 |
|
---|
| 748 | // glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
| 749 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 750 | mUseFalseColors = true;
|
---|
| 751 |
|
---|
| 752 | glBeginOcclusionQueryNV(query);
|
---|
| 753 |
|
---|
| 754 | SetupCamera();
|
---|
| 755 |
|
---|
| 756 | RenderScene();
|
---|
| 757 |
|
---|
| 758 | glEndOcclusionQueryNV();
|
---|
| 759 |
|
---|
| 760 |
|
---|
| 761 | unsigned int pixelCount;
|
---|
| 762 | // reenable other state
|
---|
| 763 | glGetOcclusionQueryuivNV(query,
|
---|
| 764 | GL_PIXEL_COUNT_NV,
|
---|
| 765 | &pixelCount);
|
---|
| 766 |
|
---|
| 767 | pErrorPixels = ((float)pixelCount)/(GetWidth()*GetHeight());
|
---|
| 768 | if (mSnapErrorFrames && pErrorPixels > 0.01) {
|
---|
| 769 |
|
---|
| 770 | char filename[256];
|
---|
| 771 | sprintf(filename, "error-frame-%04d-%0.5f.png", mFrame, pErrorPixels);
|
---|
| 772 | QImage im = toImage();
|
---|
| 773 | im.save(mSnapPrefix + filename, "PNG");
|
---|
| 774 | if (1) { //0 && mFrame == 1543) {
|
---|
| 775 | int x,y;
|
---|
| 776 | int lastIndex = -1;
|
---|
| 777 | for (y=0; y < im.height(); y++)
|
---|
| 778 | for (x=0; x < im.width(); x++) {
|
---|
| 779 | QRgb p = im.pixel(x,y);
|
---|
| 780 | int index = qRed(p) + (qGreen(p)<<8) + (qBlue(p)<<16);
|
---|
| 781 | if (qGreen(p) != 255 && index!=0) {
|
---|
| 782 | if (index != lastIndex) {
|
---|
| 783 | Debug<<"ei="<<index<<" ";
|
---|
| 784 | lastIndex = index;
|
---|
| 785 | }
|
---|
| 786 | }
|
---|
| 787 | }
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 |
|
---|
| 791 | mUseFalseColors = false;
|
---|
| 792 | glPushAttrib(GL_CURRENT_BIT);
|
---|
| 793 | glColor3f(0,1,0);
|
---|
| 794 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 795 | SetupCamera();
|
---|
| 796 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 797 |
|
---|
| 798 | // Render PVS
|
---|
| 799 | std::map<Intersectable *,
|
---|
| 800 | PvsData<Intersectable *>,
|
---|
| 801 | LtSample<Intersectable *> >::const_iterator it = viewcell->GetPvs().mEntries.begin();
|
---|
| 802 |
|
---|
| 803 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
|
---|
| 804 | Intersectable *object = (*it).first;
|
---|
| 805 | RenderIntersectable(object);
|
---|
| 806 | }
|
---|
| 807 |
|
---|
| 808 | im = toImage();
|
---|
| 809 | sprintf(filename, "error-frame-%04d-%0.5f-pvs.png", mFrame, pErrorPixels);
|
---|
| 810 | im.save(mSnapPrefix + filename, "PNG");
|
---|
| 811 | glPopAttrib();
|
---|
| 812 | }
|
---|
| 813 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 814 | }
|
---|
[713] | 815 |
|
---|
| 816 | if (viewcell)
|
---|
| 817 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
|
---|
[589] | 818 |
|
---|
| 819 | return pErrorPixels;
|
---|
| 820 | }
|
---|
| 821 |
|
---|
| 822 |
|
---|
[608] | 823 | void
|
---|
| 824 | GlRendererWidget::SetupProjection(const int w, const int h)
|
---|
| 825 | {
|
---|
| 826 | if (!mTopView)
|
---|
| 827 | GlRenderer::SetupProjection(w, h);
|
---|
| 828 | else {
|
---|
| 829 | glViewport(0, 0, w, h);
|
---|
| 830 | glMatrixMode(GL_PROJECTION);
|
---|
| 831 | glLoadIdentity();
|
---|
| 832 | gluPerspective(50.0, 1.0, 0.1, 20.0*Magnitude(mSceneGraph->GetBox().Diagonal()));
|
---|
| 833 | glMatrixMode(GL_MODELVIEW);
|
---|
| 834 | }
|
---|
| 835 | }
|
---|
| 836 |
|
---|
[746] | 837 | void
|
---|
| 838 | GlRendererWidget::RenderPvs()
|
---|
| 839 | {
|
---|
| 840 | SetupCamera();
|
---|
| 841 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 842 |
|
---|
| 843 | ViewCell *viewcell;
|
---|
| 844 |
|
---|
| 845 | PrVs prvs;
|
---|
| 846 |
|
---|
[859] | 847 | if (!useFilter)
|
---|
| 848 | viewcell = mViewCellsManager->GetViewCell(mViewPoint);
|
---|
| 849 | else {
|
---|
| 850 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 851 | mViewCellsManager->GetPrVS(mViewPoint, prvs);
|
---|
| 852 | viewcell = prvs.mViewCell;
|
---|
| 853 | }
|
---|
| 854 |
|
---|
[746] | 855 | if (viewcell) {
|
---|
| 856 | ObjectPvs &pvs = viewcell->GetPvs();
|
---|
| 857 |
|
---|
| 858 | // read back the texture
|
---|
| 859 | std::map<Intersectable *,
|
---|
| 860 | PvsData<Intersectable *>,
|
---|
| 861 | LtSample<Intersectable *> >::const_iterator it = pvs.mEntries.begin();
|
---|
| 862 |
|
---|
| 863 | mPvsSize = pvs.mEntries.size();
|
---|
| 864 |
|
---|
| 865 | for (; it != pvs.mEntries.end(); ++ it) {
|
---|
| 866 | Intersectable *object = (*it).first;
|
---|
| 867 | float visibility = log10((*it).second.mSumPdf + 1)/5.0f;
|
---|
| 868 | glColor3f(visibility, 0.0f, 0.0f);
|
---|
| 869 | mUseForcedColors = true;
|
---|
| 870 | RenderIntersectable(object);
|
---|
| 871 | mUseForcedColors = false;
|
---|
| 872 | }
|
---|
| 873 |
|
---|
| 874 | if (mRenderFilter) {
|
---|
| 875 | mWireFrame = true;
|
---|
| 876 | RenderIntersectable(viewcell);
|
---|
| 877 | mWireFrame = false;
|
---|
| 878 | }
|
---|
[859] | 879 |
|
---|
| 880 | if (useFilter)
|
---|
| 881 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
|
---|
[746] | 882 | } else {
|
---|
| 883 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
| 884 | for (; oi != mObjects.end(); oi++)
|
---|
| 885 | RenderIntersectable(*oi);
|
---|
| 886 | }
|
---|
| 887 | }
|
---|
| 888 |
|
---|
[589] | 889 | float
|
---|
| 890 | GlRendererWidget::RenderErrors()
|
---|
| 891 | {
|
---|
| 892 | float pErrorPixels = -1.0f;
|
---|
| 893 |
|
---|
| 894 | glReadBuffer(GL_BACK);
|
---|
| 895 |
|
---|
| 896 | mUseFalseColors = true;
|
---|
| 897 |
|
---|
| 898 | SetupCamera();
|
---|
| 899 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
[608] | 900 |
|
---|
| 901 | double eq[4];
|
---|
| 902 | eq[0] = mSceneCutPlane.mNormal.x;
|
---|
| 903 | eq[1] = mSceneCutPlane.mNormal.y;
|
---|
| 904 | eq[2] = mSceneCutPlane.mNormal.z;
|
---|
| 905 | eq[3] = mSceneCutPlane.mD;
|
---|
| 906 |
|
---|
| 907 | if (mCutScene) {
|
---|
| 908 | glClipPlane(GL_CLIP_PLANE0, eq);
|
---|
| 909 | glEnable(GL_CLIP_PLANE0);
|
---|
| 910 | }
|
---|
| 911 |
|
---|
[589] | 912 | if (mDetectEmptyViewSpace)
|
---|
| 913 | glEnable( GL_CULL_FACE );
|
---|
| 914 | else
|
---|
| 915 | glDisable( GL_CULL_FACE );
|
---|
| 916 |
|
---|
| 917 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
| 918 | for (; oi != mObjects.end(); oi++)
|
---|
| 919 | RenderIntersectable(*oi);
|
---|
| 920 |
|
---|
[713] | 921 | ViewCell *viewcell;
|
---|
| 922 |
|
---|
| 923 | PrVs prvs;
|
---|
| 924 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
[859] | 925 |
|
---|
| 926 |
|
---|
| 927 | if (!useFilter)
|
---|
| 928 | viewcell = mViewCellsManager->GetViewCell(mViewPoint);
|
---|
| 929 | else {
|
---|
| 930 | mViewCellsManager->GetPrVS(mViewPoint, prvs);
|
---|
| 931 | viewcell = prvs.mViewCell;
|
---|
| 932 | }
|
---|
[589] | 933 |
|
---|
| 934 | QImage im1, im2;
|
---|
| 935 | QImage diff;
|
---|
| 936 |
|
---|
| 937 | if (viewcell) {
|
---|
| 938 | // read back the texture
|
---|
| 939 | im1 = grabFrameBuffer(true);
|
---|
| 940 |
|
---|
| 941 | SetupCamera();
|
---|
| 942 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 943 |
|
---|
| 944 | std::map<Intersectable *,
|
---|
| 945 | PvsData<Intersectable *>,
|
---|
| 946 | LtSample<Intersectable *> >::const_iterator it = viewcell->GetPvs().mEntries.begin();
|
---|
[746] | 947 |
|
---|
| 948 | mPvsSize = viewcell->GetPvs().mEntries.size();
|
---|
| 949 |
|
---|
[589] | 950 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
|
---|
| 951 | Intersectable *object = (*it).first;
|
---|
| 952 | RenderIntersectable(object);
|
---|
| 953 | }
|
---|
| 954 |
|
---|
| 955 | // read back the texture
|
---|
| 956 | im2 = grabFrameBuffer(true);
|
---|
| 957 |
|
---|
| 958 | diff = im1;
|
---|
| 959 | int x, y;
|
---|
| 960 | int errorPixels = 0;
|
---|
| 961 |
|
---|
| 962 | for (y = 0; y < im1.height(); y++)
|
---|
| 963 | for (x = 0; x < im1.width(); x++)
|
---|
| 964 | if (im1.pixel(x, y) == im2.pixel(x, y))
|
---|
| 965 | diff.setPixel(x, y, qRgba(0,0,0,0));
|
---|
| 966 | else {
|
---|
| 967 | diff.setPixel(x, y, qRgba(255,128,128,255));
|
---|
| 968 | errorPixels++;
|
---|
| 969 | }
|
---|
| 970 | pErrorPixels = ((float)errorPixels)/(im1.height()*im1.width());
|
---|
| 971 | }
|
---|
| 972 |
|
---|
| 973 | // now render the pvs again
|
---|
| 974 | SetupCamera();
|
---|
| 975 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 976 | mUseFalseColors = false;
|
---|
| 977 |
|
---|
| 978 | oi = mObjects.begin();
|
---|
| 979 | for (; oi != mObjects.end(); oi++)
|
---|
| 980 | RenderIntersectable(*oi);
|
---|
| 981 |
|
---|
| 982 | // now render im1
|
---|
| 983 | if (viewcell) {
|
---|
[746] | 984 | if (0 && mTopView) {
|
---|
[589] | 985 | mWireFrame = true;
|
---|
| 986 | RenderIntersectable(viewcell);
|
---|
| 987 | mWireFrame = false;
|
---|
| 988 | }
|
---|
| 989 |
|
---|
| 990 | // init ortographic projection
|
---|
| 991 | glMatrixMode(GL_PROJECTION);
|
---|
| 992 | glPushMatrix();
|
---|
| 993 |
|
---|
| 994 | glLoadIdentity();
|
---|
| 995 | gluOrtho2D(0, 1.0f, 0, 1.0f);
|
---|
| 996 |
|
---|
| 997 | glMatrixMode(GL_MODELVIEW);
|
---|
| 998 | glLoadIdentity();
|
---|
| 999 |
|
---|
| 1000 | bindTexture(diff);
|
---|
| 1001 |
|
---|
| 1002 | glPushAttrib(GL_ENABLE_BIT);
|
---|
| 1003 | glEnable( GL_ALPHA_TEST );
|
---|
| 1004 | glDisable( GL_CULL_FACE );
|
---|
| 1005 | glAlphaFunc( GL_GREATER, 0.5 );
|
---|
| 1006 |
|
---|
| 1007 | glEnable( GL_TEXTURE_2D );
|
---|
| 1008 | glBegin(GL_QUADS);
|
---|
| 1009 |
|
---|
| 1010 | glTexCoord2f(0,0);
|
---|
| 1011 | glVertex3f(0,0,0);
|
---|
| 1012 |
|
---|
| 1013 | glTexCoord2f(1,0);
|
---|
| 1014 | glVertex3f( 1, 0, 0);
|
---|
| 1015 |
|
---|
| 1016 | glTexCoord2f(1,1);
|
---|
| 1017 | glVertex3f( 1, 1, 0);
|
---|
| 1018 |
|
---|
| 1019 | glTexCoord2f(0,1);
|
---|
| 1020 | glVertex3f(0, 1, 0);
|
---|
| 1021 | glEnd();
|
---|
| 1022 |
|
---|
| 1023 | glPopAttrib();
|
---|
| 1024 |
|
---|
| 1025 | // restore the projection matrix
|
---|
| 1026 | glMatrixMode(GL_PROJECTION);
|
---|
| 1027 | glPopMatrix();
|
---|
| 1028 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1029 | }
|
---|
| 1030 |
|
---|
[608] | 1031 | glDisable(GL_CLIP_PLANE0);
|
---|
| 1032 |
|
---|
[859] | 1033 | if (useFilter && viewcell)
|
---|
[713] | 1034 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
|
---|
[859] | 1035 |
|
---|
[746] | 1036 | mRenderError = pErrorPixels;
|
---|
[589] | 1037 | return pErrorPixels;
|
---|
| 1038 | }
|
---|
| 1039 |
|
---|
[811] | 1040 | void
|
---|
| 1041 | GlRenderer::_RenderScene()
|
---|
| 1042 | {
|
---|
| 1043 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
| 1044 | for (; oi != mObjects.end(); oi++)
|
---|
| 1045 | RenderIntersectable(*oi);
|
---|
| 1046 | }
|
---|
[589] | 1047 |
|
---|
| 1048 | bool
|
---|
| 1049 | GlRenderer::RenderScene()
|
---|
| 1050 | {
|
---|
| 1051 | static int glList = -1;
|
---|
[811] | 1052 | if (mUseGlLists) {
|
---|
| 1053 | if (glList == -1) {
|
---|
| 1054 | glList = glGenLists(1);
|
---|
| 1055 | glNewList(glList, GL_COMPILE);
|
---|
| 1056 | _RenderScene();
|
---|
| 1057 | glEndList();
|
---|
| 1058 | }
|
---|
| 1059 | glCallList(glList);
|
---|
| 1060 | } else
|
---|
| 1061 | _RenderScene();
|
---|
| 1062 |
|
---|
[589] | 1063 |
|
---|
| 1064 | return true;
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
| 1067 |
|
---|
| 1068 | void
|
---|
| 1069 | GlRendererBuffer::ClearErrorBuffer()
|
---|
| 1070 | {
|
---|
| 1071 | for (int i=0; i < mPvsStatFrames; i++) {
|
---|
[713] | 1072 | mPvsErrorBuffer[i].mError = 1.0f;
|
---|
[589] | 1073 | }
|
---|
| 1074 | }
|
---|
| 1075 |
|
---|
| 1076 |
|
---|
| 1077 | void
|
---|
| 1078 | GlRendererBuffer::EvalPvsStat()
|
---|
| 1079 | {
|
---|
| 1080 | mPvsStat.Reset();
|
---|
| 1081 | halton.Reset();
|
---|
| 1082 |
|
---|
| 1083 | makeCurrent();
|
---|
| 1084 | SetupProjection(GetWidth(), GetHeight());
|
---|
| 1085 |
|
---|
| 1086 | for (int i=0; i < mPvsStatFrames; i++) {
|
---|
| 1087 | float err;
|
---|
| 1088 | // set frame id for saving the error buffer
|
---|
| 1089 | mFrame = i;
|
---|
| 1090 | RandomViewPoint();
|
---|
| 1091 |
|
---|
| 1092 | // atlanta problematic frames: 325 525 691 1543
|
---|
| 1093 | #if 0
|
---|
| 1094 | if (mFrame != 325 &&
|
---|
| 1095 | mFrame != 525 &&
|
---|
| 1096 | mFrame != 691 &&
|
---|
| 1097 | mFrame != 1543)
|
---|
| 1098 | mPvsErrorBuffer[i] = -1;
|
---|
| 1099 | else {
|
---|
| 1100 | Debug<<"frame ="<<mFrame<<" vp="<<mViewPoint<<" vd="<<mViewDirection<<endl;
|
---|
| 1101 | }
|
---|
| 1102 | #endif
|
---|
[713] | 1103 | if (mPvsErrorBuffer[i].mError > 0.0f) {
|
---|
| 1104 | int pvsSize;
|
---|
| 1105 | float error = GetPixelError(pvsSize);
|
---|
| 1106 | mPvsErrorBuffer[i].mError = error;
|
---|
| 1107 | mPvsErrorBuffer[i].mPvsSize = pvsSize;
|
---|
| 1108 |
|
---|
[746] | 1109 | emit UpdatePvsErrorItem(i,
|
---|
| 1110 | mPvsErrorBuffer[i]);
|
---|
| 1111 |
|
---|
[713] | 1112 | cout<<"("<<i<<","<<mPvsErrorBuffer[i].mError<<")";
|
---|
[589] | 1113 | // swapBuffers();
|
---|
| 1114 | }
|
---|
| 1115 |
|
---|
[713] | 1116 | err = mPvsErrorBuffer[i].mError;
|
---|
[589] | 1117 |
|
---|
| 1118 | if (err >= 0.0f) {
|
---|
| 1119 | if (err > mPvsStat.maxError)
|
---|
| 1120 | mPvsStat.maxError = err;
|
---|
| 1121 | mPvsStat.sumError += err;
|
---|
[713] | 1122 | mPvsStat.sumPvsSize += mPvsErrorBuffer[i].mPvsSize;
|
---|
| 1123 |
|
---|
[589] | 1124 | if (err == 0.0f)
|
---|
| 1125 | mPvsStat.errorFreeFrames++;
|
---|
| 1126 | mPvsStat.frames++;
|
---|
| 1127 | }
|
---|
| 1128 | }
|
---|
| 1129 |
|
---|
| 1130 | glFinish();
|
---|
| 1131 | doneCurrent();
|
---|
| 1132 |
|
---|
| 1133 | cout<<endl<<flush;
|
---|
| 1134 | // mRenderingFinished.wakeAll();
|
---|
| 1135 | }
|
---|
| 1136 |
|
---|
| 1137 |
|
---|
| 1138 |
|
---|
| 1139 |
|
---|
| 1140 |
|
---|
| 1141 | void
|
---|
| 1142 | GlRendererWidget::mousePressEvent(QMouseEvent *e)
|
---|
| 1143 | {
|
---|
| 1144 | int x = e->pos().x();
|
---|
| 1145 | int y = e->pos().y();
|
---|
| 1146 |
|
---|
| 1147 | mousePoint.x = x;
|
---|
| 1148 | mousePoint.y = y;
|
---|
| 1149 |
|
---|
| 1150 | }
|
---|
| 1151 |
|
---|
| 1152 | void
|
---|
| 1153 | GlRendererWidget::mouseMoveEvent(QMouseEvent *e)
|
---|
| 1154 | {
|
---|
| 1155 | float MOVE_SENSITIVITY = Magnitude(mSceneGraph->GetBox().Diagonal())*1e-3;
|
---|
| 1156 | float TURN_SENSITIVITY=0.1f;
|
---|
| 1157 | float TILT_SENSITIVITY=32.0 ;
|
---|
| 1158 | float TURN_ANGLE= M_PI/36.0 ;
|
---|
| 1159 |
|
---|
| 1160 | int x = e->pos().x();
|
---|
| 1161 | int y = e->pos().y();
|
---|
| 1162 |
|
---|
| 1163 | if (e->modifiers() & Qt::ControlModifier) {
|
---|
| 1164 | mViewPoint.y += (y-mousePoint.y)*MOVE_SENSITIVITY/2.0;
|
---|
| 1165 | mViewPoint.x += (x-mousePoint.x)*MOVE_SENSITIVITY/2.0;
|
---|
| 1166 | } else {
|
---|
| 1167 | mViewPoint += mViewDirection*((mousePoint.y - y)*MOVE_SENSITIVITY);
|
---|
| 1168 | float adiff = TURN_ANGLE*(x - mousePoint.x)*-TURN_SENSITIVITY;
|
---|
| 1169 | float angle = atan2(mViewDirection.x, mViewDirection.z);
|
---|
| 1170 | mViewDirection.x = sin(angle+adiff);
|
---|
| 1171 | mViewDirection.z = cos(angle+adiff);
|
---|
| 1172 | }
|
---|
| 1173 |
|
---|
| 1174 | mousePoint.x = x;
|
---|
| 1175 | mousePoint.y = y;
|
---|
| 1176 |
|
---|
| 1177 | updateGL();
|
---|
| 1178 | }
|
---|
| 1179 |
|
---|
| 1180 | void
|
---|
| 1181 | GlRendererWidget::mouseReleaseEvent(QMouseEvent *)
|
---|
| 1182 | {
|
---|
| 1183 |
|
---|
| 1184 |
|
---|
| 1185 | }
|
---|
| 1186 |
|
---|
| 1187 | void
|
---|
| 1188 | GlRendererWidget::resizeGL(int w, int h)
|
---|
| 1189 | {
|
---|
| 1190 | SetupProjection(w, h);
|
---|
| 1191 | updateGL();
|
---|
| 1192 | }
|
---|
| 1193 |
|
---|
| 1194 | void
|
---|
| 1195 | GlRendererWidget::paintGL()
|
---|
| 1196 | {
|
---|
[608] | 1197 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1198 |
|
---|
| 1199 |
|
---|
[685] | 1200 | if (!mRenderViewCells) {
|
---|
[746] | 1201 | if (mRenderErrors)
|
---|
| 1202 | RenderErrors();
|
---|
| 1203 | else
|
---|
| 1204 | RenderPvs();
|
---|
[685] | 1205 | RenderInfo();
|
---|
| 1206 | } else {
|
---|
[599] | 1207 | RenderViewCells();
|
---|
[746] | 1208 |
|
---|
[685] | 1209 | mWireFrame = true;
|
---|
| 1210 | RenderScene();
|
---|
| 1211 | mWireFrame = false;
|
---|
[746] | 1212 |
|
---|
[685] | 1213 | RenderInfo();
|
---|
| 1214 | }
|
---|
| 1215 |
|
---|
[589] | 1216 | mFrame++;
|
---|
| 1217 | }
|
---|
| 1218 |
|
---|
| 1219 |
|
---|
| 1220 | void
|
---|
| 1221 | GlRendererWidget::SetupCamera()
|
---|
| 1222 | {
|
---|
| 1223 | if (!mTopView)
|
---|
| 1224 | GlRenderer::SetupCamera();
|
---|
| 1225 | else {
|
---|
[608] | 1226 | if (0) {
|
---|
| 1227 | float dist = Magnitude(mSceneGraph->GetBox().Diagonal())*0.05;
|
---|
| 1228 | Vector3 pos = mViewPoint - dist*Vector3(mViewDirection.x,
|
---|
| 1229 | -1,
|
---|
| 1230 | mViewDirection.y);
|
---|
| 1231 |
|
---|
| 1232 | Vector3 target = mViewPoint + dist*mViewDirection;
|
---|
| 1233 | Vector3 up(0,1,0);
|
---|
| 1234 |
|
---|
| 1235 | glLoadIdentity();
|
---|
| 1236 | gluLookAt(pos.x, pos.y, pos.z,
|
---|
| 1237 | target.x, target.y, target.z,
|
---|
| 1238 | up.x, up.y, up.z);
|
---|
| 1239 | } else {
|
---|
| 1240 | float dist = Magnitude(mSceneGraph->GetBox().Diagonal())*mTopDistance;
|
---|
| 1241 | Vector3 pos = mViewPoint + dist*Vector3(0,
|
---|
| 1242 | 1,
|
---|
| 1243 | 0);
|
---|
| 1244 |
|
---|
| 1245 | Vector3 target = mViewPoint;
|
---|
| 1246 | Vector3 up(mViewDirection.x, 0, mViewDirection.z);
|
---|
| 1247 |
|
---|
| 1248 | glLoadIdentity();
|
---|
| 1249 | gluLookAt(pos.x, pos.y, pos.z,
|
---|
| 1250 | target.x, target.y, target.z,
|
---|
| 1251 | up.x, up.y, up.z);
|
---|
| 1252 |
|
---|
| 1253 | }
|
---|
[589] | 1254 | }
|
---|
| 1255 |
|
---|
| 1256 | }
|
---|
| 1257 |
|
---|
| 1258 | void
|
---|
| 1259 | GlRendererWidget::keyPressEvent ( QKeyEvent * e )
|
---|
| 1260 | {
|
---|
| 1261 | switch (e->key()) {
|
---|
| 1262 | case Qt::Key_T:
|
---|
| 1263 | mTopView = !mTopView;
|
---|
[608] | 1264 | SetupProjection(width(), height());
|
---|
[589] | 1265 | updateGL();
|
---|
| 1266 | break;
|
---|
[599] | 1267 | case Qt::Key_V:
|
---|
| 1268 | mRenderViewCells = !mRenderViewCells;
|
---|
| 1269 | updateGL();
|
---|
| 1270 | break;
|
---|
[589] | 1271 | default:
|
---|
| 1272 | e->ignore();
|
---|
| 1273 | break;
|
---|
| 1274 | }
|
---|
[608] | 1275 | }
|
---|
| 1276 |
|
---|
[589] | 1277 |
|
---|
[608] | 1278 | RendererControlWidget::RendererControlWidget(QWidget * parent, Qt::WFlags f):
|
---|
| 1279 | QWidget(parent, f)
|
---|
| 1280 | {
|
---|
| 1281 |
|
---|
| 1282 | QVBoxLayout *vl = new QVBoxLayout;
|
---|
| 1283 | setLayout(vl);
|
---|
| 1284 |
|
---|
| 1285 | QWidget *vbox = new QGroupBox("ViewCells", this);
|
---|
| 1286 | layout()->addWidget(vbox);
|
---|
| 1287 |
|
---|
| 1288 | vl = new QVBoxLayout;
|
---|
| 1289 | vbox->setLayout(vl);
|
---|
[713] | 1290 |
|
---|
| 1291 | QLabel *label = new QLabel("Granularity");
|
---|
| 1292 | vbox->layout()->addWidget(label);
|
---|
| 1293 |
|
---|
[608] | 1294 | QSlider *slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1295 | vl->addWidget(slider);
|
---|
| 1296 | slider->show();
|
---|
[746] | 1297 | slider->setRange(1, 10000);
|
---|
[608] | 1298 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
[713] | 1299 | slider->setValue(200);
|
---|
[608] | 1300 |
|
---|
| 1301 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetViewCellGranularity(int)));
|
---|
| 1302 |
|
---|
[713] | 1303 | label = new QLabel("Filter size");
|
---|
| 1304 | vbox->layout()->addWidget(label);
|
---|
| 1305 |
|
---|
| 1306 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1307 | vbox->layout()->addWidget(slider);
|
---|
| 1308 | slider->show();
|
---|
| 1309 | slider->setRange(1, 100);
|
---|
| 1310 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1311 | slider->setValue(3);
|
---|
| 1312 |
|
---|
| 1313 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetVisibilityFilterSize(int)));
|
---|
[608] | 1314 |
|
---|
| 1315 |
|
---|
[713] | 1316 |
|
---|
[608] | 1317 | QWidget *hbox = new QWidget(vbox);
|
---|
| 1318 | vl->addWidget(hbox);
|
---|
| 1319 | QHBoxLayout *hlayout = new QHBoxLayout;
|
---|
| 1320 | hbox->setLayout(hlayout);
|
---|
| 1321 |
|
---|
| 1322 | QCheckBox *cb = new QCheckBox("Show viewcells", hbox);
|
---|
| 1323 | hlayout->addWidget(cb);
|
---|
| 1324 | cb->setChecked(false);
|
---|
| 1325 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowViewCells(bool)));
|
---|
| 1326 |
|
---|
[746] | 1327 | cb = new QCheckBox("Show render cost", hbox);
|
---|
| 1328 | hlayout->addWidget(cb);
|
---|
| 1329 | cb->setChecked(false);
|
---|
| 1330 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowRenderCost(bool)));
|
---|
| 1331 |
|
---|
| 1332 | cb = new QCheckBox("Show pvs sizes", hbox);
|
---|
| 1333 | hlayout->addWidget(cb);
|
---|
| 1334 | cb->setChecked(false);
|
---|
| 1335 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowPvsSizes(bool)));
|
---|
| 1336 |
|
---|
[608] | 1337 | vbox->resize(800,100);
|
---|
| 1338 |
|
---|
| 1339 |
|
---|
| 1340 | vbox = new QGroupBox("Rendering", this);
|
---|
| 1341 | layout()->addWidget(vbox);
|
---|
| 1342 |
|
---|
| 1343 | vl = new QVBoxLayout;
|
---|
| 1344 | vbox->setLayout(vl);
|
---|
[746] | 1345 |
|
---|
| 1346 |
|
---|
| 1347 |
|
---|
[608] | 1348 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1349 | vbox->layout()->addWidget(slider);
|
---|
| 1350 | slider->show();
|
---|
| 1351 | slider->setRange(0, 1000);
|
---|
| 1352 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1353 | slider->setValue(1000);
|
---|
| 1354 |
|
---|
| 1355 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetSceneCut(int)));
|
---|
| 1356 |
|
---|
[746] | 1357 | cb = new QCheckBox("Render errors", vbox);
|
---|
| 1358 | vbox->layout()->addWidget(cb);
|
---|
[752] | 1359 | cb->setChecked(false);
|
---|
[746] | 1360 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetRenderErrors(bool)));
|
---|
[608] | 1361 |
|
---|
[746] | 1362 | cb = new QCheckBox("Render filter", vbox);
|
---|
| 1363 | vbox->layout()->addWidget(cb);
|
---|
| 1364 | cb->setChecked(true);
|
---|
| 1365 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetRenderFilter(bool)));
|
---|
| 1366 |
|
---|
[608] | 1367 | cb = new QCheckBox("Cut view cells", vbox);
|
---|
| 1368 | vbox->layout()->addWidget(cb);
|
---|
| 1369 | cb->setChecked(false);
|
---|
| 1370 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetCutViewCells(bool)));
|
---|
| 1371 |
|
---|
| 1372 | cb = new QCheckBox("Cut scene", vbox);
|
---|
| 1373 | vbox->layout()->addWidget(cb);
|
---|
| 1374 | cb->setChecked(false);
|
---|
| 1375 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetCutScene(bool)));
|
---|
| 1376 |
|
---|
| 1377 |
|
---|
| 1378 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
| 1379 | vbox->layout()->addWidget(slider);
|
---|
| 1380 | slider->show();
|
---|
| 1381 | slider->setRange(1, 1000);
|
---|
| 1382 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
| 1383 | slider->setValue(500);
|
---|
| 1384 |
|
---|
| 1385 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetTopDistance(int)));
|
---|
[713] | 1386 |
|
---|
[608] | 1387 | cb = new QCheckBox("Top View", vbox);
|
---|
| 1388 | vbox->layout()->addWidget(cb);
|
---|
| 1389 | cb->setChecked(false);
|
---|
| 1390 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetTopView(bool)));
|
---|
[746] | 1391 |
|
---|
| 1392 | vbox = new QGroupBox("PVS Errors", this);
|
---|
| 1393 | layout()->addWidget(vbox);
|
---|
| 1394 |
|
---|
| 1395 | vl = new QVBoxLayout;
|
---|
| 1396 | vbox->setLayout(vl);
|
---|
| 1397 |
|
---|
| 1398 | mPvsErrorWidget = new QListWidget(vbox);
|
---|
| 1399 | vbox->layout()->addWidget(mPvsErrorWidget);
|
---|
[608] | 1400 |
|
---|
[746] | 1401 | connect(mPvsErrorWidget,
|
---|
| 1402 | SIGNAL(doubleClicked(const QModelIndex &)),
|
---|
| 1403 | this,
|
---|
| 1404 | SLOT(PvsErrorClicked(const QModelIndex &)));
|
---|
| 1405 |
|
---|
| 1406 | QPushButton *button = new QPushButton("Next Error Frame", vbox);
|
---|
| 1407 | vbox->layout()->addWidget(button);
|
---|
| 1408 | connect(button, SIGNAL(clicked(void)), SLOT(FocusNextPvsErrorFrame(void)));
|
---|
| 1409 |
|
---|
[713] | 1410 | setWindowTitle("Preprocessor Control Widget");
|
---|
[608] | 1411 | adjustSize();
|
---|
[589] | 1412 | }
|
---|
| 1413 |
|
---|
[746] | 1414 |
|
---|
| 1415 |
|
---|
| 1416 | void
|
---|
| 1417 | RendererControlWidget::FocusNextPvsErrorFrame(void)
|
---|
| 1418 | {
|
---|
| 1419 |
|
---|
| 1420 |
|
---|
| 1421 | }
|
---|
| 1422 |
|
---|
| 1423 | void
|
---|
| 1424 | RendererControlWidget::UpdatePvsErrorItem(int row,
|
---|
| 1425 | GlRendererBuffer::PvsErrorEntry &pvsErrorEntry)
|
---|
| 1426 | {
|
---|
| 1427 |
|
---|
| 1428 | QListWidgetItem *i = mPvsErrorWidget->item(row);
|
---|
| 1429 | QString s;
|
---|
| 1430 | s.sprintf("%5.5f", pvsErrorEntry.mError);
|
---|
| 1431 | if (i) {
|
---|
| 1432 | i->setText(s);
|
---|
| 1433 | } else {
|
---|
| 1434 | new QListWidgetItem(s, mPvsErrorWidget);
|
---|
| 1435 | }
|
---|
| 1436 | mPvsErrorWidget->update();
|
---|
| 1437 | }
|
---|
| 1438 |
|
---|
[599] | 1439 | GlRendererWidget::GlRendererWidget(SceneGraph *sceneGraph,
|
---|
| 1440 | ViewCellsManager *viewcells,
|
---|
| 1441 | KdTree *tree,
|
---|
| 1442 | QWidget * parent,
|
---|
| 1443 | const QGLWidget * shareWidget,
|
---|
| 1444 | Qt::WFlags f
|
---|
| 1445 | )
|
---|
| 1446 | :
|
---|
| 1447 | GlRenderer(sceneGraph, viewcells, tree), QGLWidget(parent, shareWidget, f)
|
---|
| 1448 | {
|
---|
| 1449 | mTopView = false;
|
---|
| 1450 | mRenderViewCells = false;
|
---|
[608] | 1451 | mTopDistance = 1.0f;
|
---|
| 1452 | mCutViewCells = false;
|
---|
| 1453 | mCutScene = false;
|
---|
[752] | 1454 | mRenderErrors = false;
|
---|
[746] | 1455 | mRenderFilter = true;
|
---|
| 1456 | mShowRenderCost = false;
|
---|
| 1457 | mShowPvsSizes = false;
|
---|
| 1458 |
|
---|
| 1459 | mPvsSize = 0;
|
---|
| 1460 | mRenderError = 0.0f;
|
---|
| 1461 | mControlWidget = new RendererControlWidget(NULL);
|
---|
[608] | 1462 |
|
---|
[746] | 1463 | connect(mControlWidget, SIGNAL(SetViewCellGranularity(int)), this, SLOT(SetViewCellGranularity(int)));
|
---|
| 1464 | connect(mControlWidget, SIGNAL(SetSceneCut(int)), this, SLOT(SetSceneCut(int)));
|
---|
| 1465 | connect(mControlWidget, SIGNAL(SetTopDistance(int)), this, SLOT(SetTopDistance(int)));
|
---|
[713] | 1466 |
|
---|
[746] | 1467 | connect(mControlWidget, SIGNAL(SetVisibilityFilterSize(int)), this, SLOT(SetVisibilityFilterSize(int)));
|
---|
[713] | 1468 |
|
---|
[746] | 1469 | connect(mControlWidget, SIGNAL(SetShowViewCells(bool)), this, SLOT(SetShowViewCells(bool)));
|
---|
| 1470 | connect(mControlWidget, SIGNAL(SetShowRenderCost(bool)), this, SLOT(SetShowRenderCost(bool)));
|
---|
| 1471 | connect(mControlWidget, SIGNAL(SetShowPvsSizes(bool)), this, SLOT(SetShowPvsSizes(bool)));
|
---|
| 1472 | connect(mControlWidget, SIGNAL(SetTopView(bool)), this, SLOT(SetTopView(bool)));
|
---|
| 1473 | connect(mControlWidget, SIGNAL(SetCutViewCells(bool)), this, SLOT(SetCutViewCells(bool)));
|
---|
| 1474 | connect(mControlWidget, SIGNAL(SetCutScene(bool)), this, SLOT(SetCutScene(bool)));
|
---|
| 1475 | connect(mControlWidget, SIGNAL(SetRenderErrors(bool)), this, SLOT(SetRenderErrors(bool)));
|
---|
| 1476 | connect(mControlWidget, SIGNAL(SetRenderFilter(bool)), this, SLOT(SetRenderFilter(bool)));
|
---|
| 1477 |
|
---|
[608] | 1478 |
|
---|
[746] | 1479 | mControlWidget->show();
|
---|
[608] | 1480 | }
|
---|
[589] | 1481 |
|
---|
[608] | 1482 | void
|
---|
| 1483 | GlRendererWidget::SetViewCellGranularity(int number)
|
---|
| 1484 | {
|
---|
[713] | 1485 | if (mViewCellsManager)
|
---|
[746] | 1486 | // mViewCellsManager->SetMaxFilterSize(number);
|
---|
| 1487 | mViewCellsManager->CollectViewCells(number);
|
---|
[608] | 1488 | updateGL();
|
---|
| 1489 | }
|
---|
[599] | 1490 |
|
---|
[608] | 1491 | void
|
---|
[713] | 1492 | GlRendererWidget::SetVisibilityFilterSize(int number)
|
---|
| 1493 | {
|
---|
| 1494 | if (mViewCellsManager)
|
---|
| 1495 | mViewCellsManager->SetMaxFilterSize(number);
|
---|
| 1496 | updateGL();
|
---|
| 1497 | }
|
---|
| 1498 |
|
---|
| 1499 | void
|
---|
[608] | 1500 | GlRendererWidget::SetSceneCut(int number)
|
---|
| 1501 | {
|
---|
| 1502 | // assume the cut plane can only be aligned with xz plane
|
---|
| 1503 | // shift it along y according to number, which is percentage of the bounding
|
---|
| 1504 | // box position
|
---|
| 1505 | if (mViewCellsManager) {
|
---|
| 1506 | AxisAlignedBox3 box = mViewCellsManager->GetViewSpaceBox();
|
---|
| 1507 | Vector3 p = box.Min() + (number/1000.0f)*box.Max();
|
---|
| 1508 | mSceneCutPlane.mNormal = Vector3(0,-1,0);
|
---|
| 1509 | mSceneCutPlane.mD = -DotProd(mSceneCutPlane.mNormal, p);
|
---|
| 1510 | updateGL();
|
---|
| 1511 | }
|
---|
[599] | 1512 | }
|
---|
| 1513 |
|
---|
| 1514 | void
|
---|
[608] | 1515 | GlRendererWidget::SetTopDistance(int number)
|
---|
[599] | 1516 | {
|
---|
[608] | 1517 | mTopDistance = number/1000.0f;
|
---|
[599] | 1518 | updateGL();
|
---|
| 1519 | }
|
---|
| 1520 |
|
---|
| 1521 | void
|
---|
| 1522 | GlRendererWidget::RenderViewCells()
|
---|
| 1523 | {
|
---|
| 1524 | mUseFalseColors = true;
|
---|
| 1525 |
|
---|
| 1526 | SetupCamera();
|
---|
[608] | 1527 | glEnable(GL_CULL_FACE);
|
---|
[685] | 1528 | //glDisable(GL_CULL_FACE);
|
---|
[608] | 1529 | glCullFace(GL_FRONT);
|
---|
| 1530 | double eq[4];
|
---|
| 1531 | eq[0] = mSceneCutPlane.mNormal.x;
|
---|
| 1532 | eq[1] = mSceneCutPlane.mNormal.y;
|
---|
| 1533 | eq[2] = mSceneCutPlane.mNormal.z;
|
---|
| 1534 | eq[3] = mSceneCutPlane.mD;
|
---|
[599] | 1535 |
|
---|
[608] | 1536 | if (mCutViewCells) {
|
---|
| 1537 | glClipPlane(GL_CLIP_PLANE0, eq);
|
---|
| 1538 | glEnable(GL_CLIP_PLANE0);
|
---|
| 1539 | }
|
---|
| 1540 |
|
---|
[599] | 1541 | int i;
|
---|
| 1542 | ViewCellContainer &viewcells = mViewCellsManager->GetViewCells();
|
---|
[746] | 1543 | int maxPvs = -1;
|
---|
[599] | 1544 | for (i=0; i < viewcells.size(); i++) {
|
---|
| 1545 | ViewCell *vc = viewcells[i];
|
---|
[746] | 1546 | int p = vc->GetPvs().GetSize();
|
---|
| 1547 | if (p > maxPvs)
|
---|
| 1548 | maxPvs = p;
|
---|
| 1549 | }
|
---|
| 1550 |
|
---|
| 1551 |
|
---|
| 1552 | for (i=0; i < viewcells.size(); i++) {
|
---|
| 1553 | ViewCell *vc = viewcells[i];
|
---|
[608] | 1554 | // Mesh *m = vc->GetMesh();
|
---|
[746] | 1555 |
|
---|
| 1556 |
|
---|
| 1557 | RgbColor c;
|
---|
| 1558 |
|
---|
| 1559 | if (!mShowPvsSizes)
|
---|
| 1560 | c = vc->GetColor();
|
---|
| 1561 | else {
|
---|
| 1562 | float importance = (float)vc->GetPvs().GetSize() / (float)maxPvs;
|
---|
| 1563 | c = RgbColor(importance, 1.0f - importance, 0.0f);
|
---|
| 1564 | }
|
---|
[608] | 1565 | glColor3f(c.r, c.g, c.b);
|
---|
[746] | 1566 |
|
---|
[599] | 1567 | RenderViewCell(vc);
|
---|
| 1568 | }
|
---|
| 1569 |
|
---|
[608] | 1570 | glDisable(GL_CLIP_PLANE0);
|
---|
| 1571 |
|
---|
[599] | 1572 | }
|
---|
| 1573 |
|
---|
[589] | 1574 | void GlRendererBuffer::SampleBeamContributions(Intersectable *sourceObject,
|
---|
| 1575 | Beam &beam,
|
---|
| 1576 | const int desiredSamples,
|
---|
[517] | 1577 | BeamSampleStatistics &stat)
|
---|
[540] | 1578 | {
|
---|
[589] | 1579 | // TODO: should be moved out of here (not to be done every time)
|
---|
[513] | 1580 | // only back faces are interesting for the depth pass
|
---|
[589] | 1581 | glShadeModel(GL_FLAT);
|
---|
| 1582 | glDisable(GL_LIGHTING);
|
---|
| 1583 |
|
---|
| 1584 | // needed to kill the fragments for the front buffer
|
---|
| 1585 | glEnable(GL_ALPHA_TEST);
|
---|
| 1586 | glAlphaFunc(GL_GREATER, 0);
|
---|
| 1587 |
|
---|
| 1588 | // assumes that the beam is constructed and contains kd-tree nodes
|
---|
| 1589 | // and viewcells which it intersects
|
---|
| 1590 |
|
---|
| 1591 |
|
---|
| 1592 | // Get the number of viewpoints to be sampled
|
---|
| 1593 | // Now it is a sqrt but in general a wiser decision could be made.
|
---|
| 1594 | // The less viewpoints the better for rendering performance, since less passes
|
---|
| 1595 | // over the beam is needed.
|
---|
| 1596 | // The viewpoints could actually be generated outside of the bounding box which
|
---|
| 1597 | // would distribute the 'efective viewpoints' of the object surface and thus
|
---|
| 1598 | // with a few viewpoints better sample the viewpoint space....
|
---|
| 1599 |
|
---|
| 1600 | //TODO: comment in
|
---|
| 1601 | //int viewPointSamples = sqrt((float)desiredSamples);
|
---|
| 1602 | int viewPointSamples = max(desiredSamples / (GetWidth() * GetHeight()), 1);
|
---|
| 1603 |
|
---|
| 1604 | // the number of direction samples per pass is given by the number of viewpoints
|
---|
| 1605 | int directionalSamples = desiredSamples / viewPointSamples;
|
---|
| 1606 |
|
---|
| 1607 | Debug << "directional samples: " << directionalSamples << endl;
|
---|
| 1608 | for (int i = 0; i < viewPointSamples; ++ i)
|
---|
| 1609 | {
|
---|
| 1610 | Vector3 viewPoint = beam.mBox.GetRandomPoint();
|
---|
| 1611 |
|
---|
| 1612 | // perhaps the viewpoint should be shifted back a little bit so that it always lies
|
---|
| 1613 | // inside the source object
|
---|
| 1614 | // 'ideally' the viewpoints would be distributed on the soureObject surface, but this
|
---|
| 1615 | // would require more complicated sampling (perhaps hierarchical rejection sampling of
|
---|
| 1616 | // the object surface is an option here - only the mesh faces which are inside the box
|
---|
| 1617 | // are considered as candidates)
|
---|
| 1618 |
|
---|
| 1619 | SampleViewpointContributions(sourceObject,
|
---|
| 1620 | viewPoint,
|
---|
| 1621 | beam,
|
---|
| 1622 | directionalSamples,
|
---|
| 1623 | stat);
|
---|
| 1624 | }
|
---|
| 1625 |
|
---|
| 1626 |
|
---|
| 1627 | // note:
|
---|
| 1628 | // this routine would be called only if the number of desired samples is sufficiently
|
---|
| 1629 | // large - for other rss tree cells the cpu based sampling is perhaps more efficient
|
---|
| 1630 | // distributing the work between cpu and gpu would also allow us to place more sophisticated
|
---|
| 1631 | // sample distributions (silhouette ones) using the cpu and the jittered once on the GPU
|
---|
| 1632 | // in order that thios scheme is working well the gpu render buffer should run in a separate
|
---|
| 1633 | // thread than the cpu sampler, which would not be such a big problem....
|
---|
| 1634 |
|
---|
| 1635 | // disable alpha test again
|
---|
| 1636 | glDisable(GL_ALPHA_TEST);
|
---|
| 1637 | }
|
---|
| 1638 |
|
---|
| 1639 |
|
---|
| 1640 | void GlRendererBuffer::SampleViewpointContributions(Intersectable *sourceObject,
|
---|
| 1641 | const Vector3 viewPoint,
|
---|
| 1642 | Beam &beam,
|
---|
| 1643 | const int samples,
|
---|
[513] | 1644 | BeamSampleStatistics &stat)
|
---|
[589] | 1645 | {
|
---|
| 1646 | // 1. setup the view port to match the desired samples
|
---|
| 1647 | glViewport(0, 0, samples, samples);
|
---|
| 1648 |
|
---|
| 1649 | // 2. setup the projection matrix and view matrix to match the viewpoint + beam.mDirBox
|
---|
| 1650 | SetupProjectionForViewPoint(viewPoint, beam, sourceObject);
|
---|
| 1651 |
|
---|
| 1652 |
|
---|
| 1653 | // 3. reset z-buffer to 0 and render the source object for the beam
|
---|
| 1654 | // with glCullFace(Enabled) and glFrontFace(GL_CW)
|
---|
[544] | 1655 | // save result to the front depth map
|
---|
| 1656 | // the front depth map holds ray origins
|
---|
[589] | 1657 |
|
---|
| 1658 |
|
---|
| 1659 | // front depth buffer must be initialised to 0
|
---|
| 1660 | float clearDepth;
|
---|
| 1661 |
|
---|
| 1662 | glGetFloatv(GL_DEPTH_CLEAR_VALUE, &clearDepth);
|
---|
| 1663 | glClearDepth(0.0f);
|
---|
| 1664 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
---|
| 1665 |
|
---|
| 1666 |
|
---|
| 1667 | //glFrontFace(GL_CW);
|
---|
| 1668 | glEnable(GL_CULL_FACE);
|
---|
| 1669 | glCullFace(GL_FRONT);
|
---|
| 1670 | glColorMask(0, 0, 0, 0);
|
---|
| 1671 |
|
---|
| 1672 |
|
---|
| 1673 | // stencil is increased where the source object is located
|
---|
| 1674 | glEnable(GL_STENCIL_TEST);
|
---|
| 1675 | glStencilFunc(GL_ALWAYS, 0x1, 0x1);
|
---|
| 1676 | glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
|
---|
| 1677 |
|
---|
| 1678 |
|
---|
[513] | 1679 | #if 0
|
---|
[589] | 1680 | static int glSourceObjList = -1;
|
---|
| 1681 | if (glSourceObjList != -1)
|
---|
| 1682 | {
|
---|
| 1683 | glSourceObjList = glGenLists(1);
|
---|
| 1684 | glNewList(glSourceObjList, GL_COMPILE);
|
---|
| 1685 |
|
---|
| 1686 | RenderIntersectable(sourceObject);
|
---|
[513] | 1687 |
|
---|
| 1688 | glEndList();
|
---|
[589] | 1689 | }
|
---|
| 1690 | glCallList(glSourceObjList);
|
---|
| 1691 |
|
---|
| 1692 | #else
|
---|
| 1693 | RenderIntersectable(sourceObject);
|
---|
| 1694 |
|
---|
| 1695 | #endif
|
---|
| 1696 |
|
---|
| 1697 | // copy contents of the front depth buffer into depth texture
|
---|
[540] | 1698 | glBindTexture(GL_TEXTURE_2D, frontDepthMap);
|
---|
[544] | 1699 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
|
---|
[589] | 1700 |
|
---|
| 1701 |
|
---|
| 1702 | // reset clear function
|
---|
| 1703 | glClearDepth(clearDepth);
|
---|
| 1704 |
|
---|
| 1705 |
|
---|
| 1706 |
|
---|
| 1707 | // 4. set up the termination depth buffer (= standard depth buffer)
|
---|
| 1708 | // only rays which have non-zero entry in the origin buffer are valid since
|
---|
| 1709 | // they realy start on the object surface (this is tagged by setting a
|
---|
| 1710 | // stencil buffer bit at step 3).
|
---|
| 1711 |
|
---|
[541] | 1712 | glStencilFunc(GL_EQUAL, 0x1, 0x1);
|
---|
[589] | 1713 | glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
|
---|
| 1714 |
|
---|
| 1715 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 1716 | glDepthMask(1);
|
---|
| 1717 |
|
---|
| 1718 | glEnable(GL_DEPTH_TEST);
|
---|
| 1719 |
|
---|
| 1720 | glEnable(GL_CULL_FACE);
|
---|
| 1721 | glCullFace(GL_BACK);
|
---|
| 1722 |
|
---|
| 1723 | // setup front depth buffer
|
---|
[544] | 1724 | glEnable(GL_TEXTURE_2D);
|
---|
| 1725 |
|
---|
| 1726 | // bind pixel shader implementing the front depth buffer functionality
|
---|
| 1727 | cgGLBindProgram(sCgFragmentProgram);
|
---|
[589] | 1728 | cgGLEnableProfile(sCgFragmentProfile);
|
---|
| 1729 |
|
---|
| 1730 |
|
---|
| 1731 | // 5. render all objects inside the beam
|
---|
| 1732 | // we can use id based false color to read them back for gaining the pvs
|
---|
| 1733 |
|
---|
| 1734 | glColorMask(1, 1, 1, 1);
|
---|
| 1735 |
|
---|
[544] | 1736 |
|
---|
| 1737 | // if objects not stored in beam => extract objects
|
---|
[532] | 1738 | if (beam.mFlags & !Beam::STORE_OBJECTS)
|
---|
| 1739 | {
|
---|
| 1740 | vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
|
---|
| 1741 |
|
---|
| 1742 | Intersectable::NewMail();
|
---|
| 1743 | for (it = beam.mKdNodes.begin(); it != it_end; ++ it)
|
---|
| 1744 | {
|
---|
| 1745 | mKdTree->CollectObjects(*it, beam.mObjects);
|
---|
| 1746 | }
|
---|
| 1747 | }
|
---|
| 1748 |
|
---|
[544] | 1749 |
|
---|
[589] | 1750 | // (objects can be compiled to a gl list now so that subsequent rendering for
|
---|
| 1751 | // this beam is fast - the same hold for step 3)
|
---|
[544] | 1752 | // Afterwards we have two depth buffers defining the ray origin and termination
|
---|
| 1753 |
|
---|
| 1754 |
|
---|
[513] | 1755 | #if 0
|
---|
[589] | 1756 | static int glObjList = -1;
|
---|
| 1757 | if (glObjList != -1)
|
---|
| 1758 | {
|
---|
| 1759 | glObjList = glGenLists(1);
|
---|
| 1760 | glNewList(glObjList, GL_COMPILE);
|
---|
| 1761 |
|
---|
| 1762 | ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
|
---|
| 1763 | for (it = beam.mObjects.begin(); it != it_end; ++ it)
|
---|
| 1764 | {
|
---|
| 1765 | // render all objects except the source object
|
---|
| 1766 | if (*it != sourceObject)
|
---|
| 1767 | RenderIntersectable(*it);
|
---|
| 1768 | }
|
---|
[513] | 1769 |
|
---|
| 1770 | glEndList();
|
---|
[589] | 1771 | }
|
---|
| 1772 |
|
---|
| 1773 | glCallList(glObjList);
|
---|
| 1774 | #else
|
---|
| 1775 | ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
|
---|
| 1776 | for (it = beam.mObjects.begin(); it != it_end; ++ it)
|
---|
| 1777 | {
|
---|
| 1778 | // render all objects except the source object
|
---|
| 1779 | if (*it != sourceObject)
|
---|
| 1780 | RenderIntersectable(*it);
|
---|
| 1781 | }
|
---|
| 1782 | #endif
|
---|
[513] | 1783 |
|
---|
[589] | 1784 |
|
---|
| 1785 |
|
---|
| 1786 | // 6. Use occlusion queries for all viewcell meshes associated with the beam ->
|
---|
| 1787 | // a fragment passes if the corresponding stencil fragment is set and its depth is
|
---|
| 1788 | // between origin and termination buffer
|
---|
| 1789 |
|
---|
| 1790 | // create new queries if necessary
|
---|
| 1791 | GenQueries((int)beam.mViewCells.size());
|
---|
| 1792 |
|
---|
| 1793 | // check whether any backfacing polygon would pass the depth test?
|
---|
| 1794 | // matt: should check both back /front facing because of dual depth buffer
|
---|
| 1795 | // and danger of cutting the near plane with front facing polys.
|
---|
| 1796 |
|
---|
| 1797 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
| 1798 | glDepthMask(GL_FALSE);
|
---|
| 1799 | glDisable(GL_CULL_FACE);
|
---|
| 1800 |
|
---|
| 1801 |
|
---|
| 1802 | ViewCellContainer::const_iterator vit, vit_end = beam.mViewCells.end();
|
---|
| 1803 |
|
---|
| 1804 | int queryIdx = 0;
|
---|
| 1805 |
|
---|
| 1806 | for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 1807 | {
|
---|
| 1808 | glBeginOcclusionQueryNV(sQueries[queryIdx ++]);
|
---|
| 1809 |
|
---|
| 1810 | RenderIntersectable(*vit);
|
---|
| 1811 |
|
---|
| 1812 | glEndOcclusionQueryNV();
|
---|
| 1813 | }
|
---|
| 1814 |
|
---|
| 1815 |
|
---|
| 1816 |
|
---|
| 1817 | // at this point, if possible, go and do some other computation
|
---|
| 1818 |
|
---|
| 1819 |
|
---|
| 1820 |
|
---|
| 1821 | // 7. The number of visible pixels is the number of sample rays which see the source
|
---|
| 1822 | // object from the corresponding viewcell -> remember these values for later update
|
---|
| 1823 | // of the viewcell pvs - or update immediately?
|
---|
| 1824 |
|
---|
| 1825 | queryIdx = 0;
|
---|
| 1826 | unsigned int pixelCount;
|
---|
| 1827 |
|
---|
| 1828 | for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 1829 | {
|
---|
| 1830 | // fetch queries
|
---|
| 1831 | glGetOcclusionQueryuivNV(sQueries[queryIdx ++],
|
---|
| 1832 | GL_PIXEL_COUNT_NV,
|
---|
| 1833 | &pixelCount);
|
---|
| 1834 | if (pixelCount)
|
---|
| 1835 | Debug << "view cell " << (*vit)->GetId() << " visible pixels: " << pixelCount << endl;
|
---|
| 1836 | }
|
---|
| 1837 |
|
---|
| 1838 |
|
---|
| 1839 | // 8. Copmpute rendering statistics
|
---|
| 1840 | // In general it is not neccessary to remember to extract all the rays cast. I hope it
|
---|
| 1841 | // would be sufficient to gain only the intergral statistics about the new contributions
|
---|
| 1842 | // and so the rss tree would actually store no new rays (only the initial ones)
|
---|
| 1843 | // the subdivision of the tree would only be driven by the statistics (the glrender could
|
---|
| 1844 | // evaluate the contribution entropy for example)
|
---|
| 1845 | // However might be an option to extract/store only those the rays which made a contribution
|
---|
| 1846 | // (new viewcell has been discovered) or relative contribution greater than a threshold ...
|
---|
| 1847 |
|
---|
| 1848 | ObjectContainer pvsObj;
|
---|
| 1849 | stat.pvsSize = ComputePvs(beam.mObjects, pvsObj);
|
---|
| 1850 |
|
---|
| 1851 | // to gain ray source and termination
|
---|
| 1852 | // copy contents of ray termination buffer into depth texture
|
---|
| 1853 | // and compare with ray source buffer
|
---|
| 1854 | #if 0
|
---|
[544] | 1855 | VssRayContainer rays;
|
---|
| 1856 |
|
---|
[540] | 1857 | glBindTexture(GL_TEXTURE_2D, backDepthMap);
|
---|
[589] | 1858 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
|
---|
| 1859 |
|
---|
| 1860 | ComputeRays(Intersectable *sourceObj, rays);
|
---|
| 1861 |
|
---|
| 1862 | #endif
|
---|
| 1863 |
|
---|
| 1864 |
|
---|
| 1865 |
|
---|
| 1866 | //-- cleanup
|
---|
| 1867 |
|
---|
| 1868 |
|
---|
| 1869 | // reset gl state
|
---|
| 1870 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
| 1871 | glDepthMask(GL_TRUE);
|
---|
| 1872 | glEnable(GL_CULL_FACE);
|
---|
| 1873 | glDisable(GL_STENCIL_TEST);
|
---|
| 1874 | cgGLDisableProfile(sCgFragmentProfile);
|
---|
| 1875 | glDisable(GL_TEXTURE_2D);
|
---|
| 1876 |
|
---|
| 1877 | // remove objects from beam
|
---|
| 1878 | if (beam.mFlags & !Beam::STORE_OBJECTS)
|
---|
| 1879 | beam.mObjects.clear();
|
---|
| 1880 | }
|
---|
| 1881 |
|
---|
| 1882 |
|
---|
| 1883 | void GlRendererBuffer::GenQueries(const int numQueries)
|
---|
[540] | 1884 | {
|
---|
[589] | 1885 | if ((int)sQueries.size() < numQueries)
|
---|
| 1886 | {
|
---|
| 1887 | const int n = numQueries - (int)sQueries.size();
|
---|
| 1888 | unsigned int *newQueries = new unsigned int[n];
|
---|
| 1889 |
|
---|
| 1890 | glGenOcclusionQueriesNV(n, (unsigned int *)newQueries);
|
---|
| 1891 |
|
---|
| 1892 | for (int i = 0; i < n; ++ i)
|
---|
| 1893 | {
|
---|
| 1894 | sQueries.push_back(newQueries[i]);
|
---|
| 1895 | }
|
---|
| 1896 |
|
---|
| 1897 | delete [] newQueries;
|
---|
| 1898 | }
|
---|
| 1899 | }
|
---|
| 1900 |
|
---|
| 1901 |
|
---|
| 1902 | void GlRendererBuffer::SetupProjectionForViewPoint(const Vector3 &viewPoint,
|
---|
| 1903 | const Beam &beam,
|
---|
| 1904 | Intersectable *sourceObject)
|
---|
| 1905 | {
|
---|
| 1906 | float left, right, bottom, top, znear, zfar;
|
---|
| 1907 |
|
---|
| 1908 | beam.ComputePerspectiveFrustum(left, right, bottom, top, znear, zfar,
|
---|
| 1909 | mSceneGraph->GetBox());
|
---|
| 1910 |
|
---|
| 1911 | //Debug << left << " " << right << " " << bottom << " " << top << " " << znear << " " << zfar << endl;
|
---|
| 1912 | glMatrixMode(GL_PROJECTION);
|
---|
| 1913 | glLoadIdentity();
|
---|
| 1914 | glFrustum(left, right, bottom, top, znear, zfar);
|
---|
| 1915 | //glFrustum(-1, 1, -1, 1, 1, 20000);
|
---|
| 1916 |
|
---|
| 1917 | const Vector3 center = viewPoint + beam.GetMainDirection() * (zfar - znear) * 0.3f;
|
---|
| 1918 | const Vector3 up =
|
---|
| 1919 | Normalize(CrossProd(beam.mPlanes[0].mNormal, beam.mPlanes[4].mNormal));
|
---|
| 1920 |
|
---|
| 1921 | #ifdef _DEBUG
|
---|
| 1922 | Debug << "view point: " << viewPoint << endl;
|
---|
| 1923 | Debug << "eye: " << center << endl;
|
---|
| 1924 | Debug << "up: " << up << endl;
|
---|
| 1925 | #endif
|
---|
| 1926 |
|
---|
| 1927 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1928 | glLoadIdentity();
|
---|
| 1929 | gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z,
|
---|
| 1930 | center.x, center.y, center.z,
|
---|
| 1931 | up.x, up.y, up.z);
|
---|
| 1932 | }
|
---|
| 1933 |
|
---|
| 1934 |
|
---|
| 1935 | void GlRendererBuffer::InitGL()
|
---|
| 1936 | {
|
---|
| 1937 | makeCurrent();
|
---|
[556] | 1938 | GlRenderer::InitGL();
|
---|
[811] | 1939 |
|
---|
[589] | 1940 | #if 1
|
---|
[540] | 1941 | // initialise dual depth buffer textures
|
---|
| 1942 | glGenTextures(1, &frontDepthMap);
|
---|
| 1943 | glBindTexture(GL_TEXTURE_2D, frontDepthMap);
|
---|
| 1944 |
|
---|
| 1945 | glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize,
|
---|
| 1946 | depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
|
---|
| 1947 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
[589] | 1948 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
| 1949 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
---|
| 1950 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
---|
| 1951 |
|
---|
[540] | 1952 | glGenTextures(1, &backDepthMap);
|
---|
| 1953 | glBindTexture(GL_TEXTURE_2D, backDepthMap);
|
---|
| 1954 |
|
---|
| 1955 | glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize,
|
---|
| 1956 | depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
|
---|
| 1957 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
[589] | 1958 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
| 1959 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
---|
| 1960 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
---|
| 1961 |
|
---|
| 1962 | // cg initialization
|
---|
[540] | 1963 | cgSetErrorCallback(handleCgError);
|
---|
| 1964 | sCgContext = cgCreateContext();
|
---|
| 1965 |
|
---|
| 1966 | if (cgGLIsProfileSupported(CG_PROFILE_ARBFP1))
|
---|
| 1967 | sCgFragmentProfile = CG_PROFILE_ARBFP1;
|
---|
| 1968 | else
|
---|
| 1969 | {
|
---|
| 1970 | // try FP30
|
---|
| 1971 | if (cgGLIsProfileSupported(CG_PROFILE_FP30))
|
---|
| 1972 | sCgFragmentProfile = CG_PROFILE_FP30;
|
---|
| 1973 | else
|
---|
| 1974 | {
|
---|
| 1975 | Debug << "Neither arbfp1 or fp30 fragment profiles supported on this system" << endl;
|
---|
| 1976 | exit(1);
|
---|
| 1977 | }
|
---|
| 1978 | }
|
---|
| 1979 |
|
---|
| 1980 |
|
---|
[589] | 1981 | sCgFragmentProgram = cgCreateProgramFromFile(sCgContext,
|
---|
| 1982 | CG_SOURCE, "../src/dual_depth.cg",
|
---|
| 1983 | sCgFragmentProfile,
|
---|
| 1984 | NULL,
|
---|
| 1985 | NULL);
|
---|
| 1986 |
|
---|
| 1987 | if (!cgIsProgramCompiled(sCgFragmentProgram))
|
---|
| 1988 | cgCompileProgram(sCgFragmentProgram);
|
---|
| 1989 |
|
---|
| 1990 | cgGLLoadProgram(sCgFragmentProgram);
|
---|
| 1991 | cgGLBindProgram(sCgFragmentProgram);
|
---|
| 1992 |
|
---|
| 1993 | Debug << "---- PROGRAM BEGIN ----\n" <<
|
---|
| 1994 | cgGetProgramString(sCgFragmentProgram, CG_COMPILED_PROGRAM) << "---- PROGRAM END ----\n";
|
---|
| 1995 |
|
---|
| 1996 | #endif
|
---|
| 1997 | doneCurrent();
|
---|
| 1998 | }
|
---|
| 1999 |
|
---|
| 2000 |
|
---|
| 2001 | void GlRendererBuffer::ComputeRays(Intersectable *sourceObj, VssRayContainer &rays)
|
---|
| 2002 | {
|
---|
| 2003 | for (int i = 0; i < depthMapSize * depthMapSize; ++ i)
|
---|
| 2004 | {
|
---|
| 2005 | //todo glGetTexImage()
|
---|
| 2006 | }
|
---|
| 2007 | }
|
---|
| 2008 |
|
---|
| 2009 |
|
---|
| 2010 |
|
---|
[540] | 2011 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
| 2012 | {
|
---|
| 2013 | return obj1->mId < obj2->mId;
|
---|
| 2014 | }
|
---|
[589] | 2015 |
|
---|
| 2016 |
|
---|
| 2017 | int GlRendererBuffer::ComputePvs(ObjectContainer &objects,
|
---|
| 2018 | ObjectContainer &pvs) const
|
---|
| 2019 | {
|
---|
| 2020 | int pvsSize = 0;
|
---|
| 2021 | QImage image = toImage();
|
---|
| 2022 | Intersectable::NewMail();
|
---|
| 2023 |
|
---|
[540] | 2024 | std::stable_sort(objects.begin(), objects.end(), ilt);
|
---|
| 2025 |
|
---|
| 2026 | MeshInstance dummy(NULL);
|
---|
| 2027 |
|
---|
| 2028 | Intersectable *obj = NULL;
|
---|
[589] | 2029 |
|
---|
| 2030 | for (int x = 0; x < image.width(); ++ x)
|
---|
| 2031 | {
|
---|
| 2032 | for (int y = 0; y < image.height(); ++ y)
|
---|
| 2033 | {
|
---|
| 2034 | QRgb pix = image.pixel(x, y);
|
---|
| 2035 | const int id = GetId(qRed(pix), qGreen(pix), qBlue(pix));
|
---|
| 2036 |
|
---|
[540] | 2037 | dummy.SetId(id);
|
---|
| 2038 |
|
---|
| 2039 | ObjectContainer::iterator oit =
|
---|
| 2040 | lower_bound(objects.begin(), objects.end(), &dummy, ilt);
|
---|
[589] | 2041 |
|
---|
| 2042 |
|
---|
| 2043 | if (//(oit != oit.end()) &&
|
---|
| 2044 | ((*oit)->GetId() == id) &&
|
---|
| 2045 | !obj->Mailed())
|
---|
| 2046 | {
|
---|
| 2047 | obj = *oit;
|
---|
| 2048 | obj->Mail();
|
---|
| 2049 | ++ pvsSize;
|
---|
| 2050 | pvs.push_back(obj);
|
---|
| 2051 | }
|
---|
| 2052 | }
|
---|
| 2053 | }
|
---|
| 2054 |
|
---|
| 2055 | return pvsSize;
|
---|
| 2056 | }
|
---|
| 2057 |
|
---|
| 2058 | /***********************************************************************/
|
---|
| 2059 | /* GlDebuggerWidget implementation */
|
---|
| 2060 | /***********************************************************************/
|
---|
| 2061 |
|
---|
| 2062 |
|
---|
[540] | 2063 | GlDebuggerWidget::GlDebuggerWidget(GlRendererBuffer *buf, QWidget *parent)
|
---|
[538] | 2064 | : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), mRenderBuffer(buf)
|
---|
| 2065 | {
|
---|
| 2066 | // create the pbuffer
|
---|
| 2067 | //pbuffer = new QGLPixelBuffer(QSize(512, 512), format(), this);
|
---|
| 2068 | timerId = startTimer(20);
|
---|
| 2069 | setWindowTitle(("OpenGL pbuffers"));
|
---|
| 2070 | }
|
---|
| 2071 |
|
---|
| 2072 |
|
---|
| 2073 | GlDebuggerWidget::~GlDebuggerWidget()
|
---|
| 2074 | {
|
---|
[556] | 2075 | mRenderBuffer->releaseFromDynamicTexture();
|
---|
| 2076 | glDeleteTextures(1, &dynamicTexture);
|
---|
| 2077 |
|
---|
| 2078 | DEL_PTR(mRenderBuffer);
|
---|
[538] | 2079 | }
|
---|
| 2080 |
|
---|
| 2081 |
|
---|
| 2082 | void GlDebuggerWidget::initializeGL()
|
---|
| 2083 | {
|
---|
| 2084 | glMatrixMode(GL_PROJECTION);
|
---|
| 2085 | glLoadIdentity();
|
---|
| 2086 |
|
---|
| 2087 | glFrustum(-1, 1, -1, 1, 10, 100);
|
---|
| 2088 | glTranslatef(-0.5f, -0.5f, -0.5f);
|
---|
| 2089 | glTranslatef(0.0f, 0.0f, -15.0f);
|
---|
| 2090 | glMatrixMode(GL_MODELVIEW);
|
---|
| 2091 |
|
---|
| 2092 | glEnable(GL_CULL_FACE);
|
---|
| 2093 | initCommon();
|
---|
| 2094 | initPbuffer();
|
---|
| 2095 |
|
---|
| 2096 | }
|
---|
| 2097 |
|
---|
| 2098 |
|
---|
| 2099 | void GlDebuggerWidget::resizeGL(int w, int h)
|
---|
| 2100 | {
|
---|
| 2101 | glViewport(0, 0, w, h);
|
---|
| 2102 | }
|
---|
| 2103 |
|
---|
| 2104 |
|
---|
| 2105 | void GlDebuggerWidget::paintGL()
|
---|
| 2106 | {
|
---|
| 2107 | // draw a spinning cube into the pbuffer..
|
---|
| 2108 | mRenderBuffer->makeCurrent();
|
---|
[540] | 2109 |
|
---|
| 2110 | BeamSampleStatistics stats;
|
---|
| 2111 | mRenderBuffer->SampleBeamContributions(mSourceObject, mBeam, mSamples, stats);
|
---|
| 2112 |
|
---|
[538] | 2113 | glFlush();
|
---|
| 2114 |
|
---|
[540] | 2115 | // rendering directly to a texture is not supported on X11, unfortunately
|
---|
[538] | 2116 | mRenderBuffer->updateDynamicTexture(dynamicTexture);
|
---|
| 2117 |
|
---|
[540] | 2118 | // and use the pbuffer contents as a texture when rendering the
|
---|
[538] | 2119 | // background and the bouncing cubes
|
---|
| 2120 | makeCurrent();
|
---|
| 2121 | glBindTexture(GL_TEXTURE_2D, dynamicTexture);
|
---|
| 2122 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
| 2123 |
|
---|
| 2124 | // draw the background
|
---|
| 2125 | glMatrixMode(GL_MODELVIEW);
|
---|
| 2126 | glPushMatrix();
|
---|
| 2127 | glLoadIdentity();
|
---|
| 2128 | glMatrixMode(GL_PROJECTION);
|
---|
| 2129 | glPushMatrix();
|
---|
| 2130 | glLoadIdentity();
|
---|
| 2131 |
|
---|
| 2132 | glPopMatrix();
|
---|
| 2133 | glMatrixMode(GL_MODELVIEW);
|
---|
| 2134 | glPopMatrix();
|
---|
| 2135 | }
|
---|
| 2136 |
|
---|
| 2137 |
|
---|
| 2138 | void GlDebuggerWidget::initPbuffer()
|
---|
| 2139 | {
|
---|
| 2140 | // set up the pbuffer context
|
---|
| 2141 | mRenderBuffer->makeCurrent();
|
---|
[540] | 2142 | /*mRenderBuffer->InitGL();
|
---|
[538] | 2143 |
|
---|
| 2144 | glViewport(0, 0, mRenderBuffer->size().width(), mRenderBuffer->size().height());
|
---|
| 2145 | glMatrixMode(GL_PROJECTION);
|
---|
| 2146 | glLoadIdentity();
|
---|
| 2147 | glOrtho(-1, 1, -1, 1, -99, 99);
|
---|
| 2148 | glTranslatef(-0.5f, -0.5f, 0.0f);
|
---|
| 2149 | glMatrixMode(GL_MODELVIEW);
|
---|
| 2150 | glLoadIdentity();
|
---|
| 2151 |
|
---|
[540] | 2152 | glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);*/
|
---|
| 2153 |
|
---|
[538] | 2154 | // generate a texture that has the same size/format as the pbuffer
|
---|
| 2155 | dynamicTexture = mRenderBuffer->generateDynamicTexture();
|
---|
| 2156 |
|
---|
| 2157 | // bind the dynamic texture to the pbuffer - this is a no-op under X11
|
---|
| 2158 | mRenderBuffer->bindToDynamicTexture(dynamicTexture);
|
---|
| 2159 | makeCurrent();
|
---|
| 2160 | }
|
---|
| 2161 |
|
---|
| 2162 | void GlDebuggerWidget::initCommon()
|
---|
| 2163 | {
|
---|
| 2164 | glEnable(GL_TEXTURE_2D);
|
---|
| 2165 | glEnable(GL_DEPTH_TEST);
|
---|
| 2166 |
|
---|
| 2167 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
|
---|
[589] | 2168 | }
|
---|
[860] | 2169 |
|
---|
| 2170 | } |
---|