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