[865] | 1 | #ifndef __GLRENDERER_H
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| 2 | #define __GLRENDERER_H
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[492] | 3 |
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| 4 | #include "Vector3.h"
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| 5 | #include "Containers.h"
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| 6 | #include "Halton.h"
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[497] | 7 | #include "Renderer.h"
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[540] | 8 | #include "Beam.h"
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[1161] | 9 | #include "Pvs.h"
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[492] | 10 |
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[863] | 11 |
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[860] | 12 | namespace GtpVisibilityPreprocessor {
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| 13 |
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[492] | 14 | class SceneGraph;
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| 15 | class ViewCellsManager;
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| 16 | class Mesh;
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| 17 | class MeshInstance;
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| 18 | class Intersectable;
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| 19 | class Material;
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[512] | 20 | class Beam;
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[532] | 21 | class KdTree;
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[538] | 22 | class GlRendererBuffer;
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[531] | 23 | class BeamSampleStatistics;
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[1001] | 24 | class OcclusionQuery;
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| 25 | class TransformedMeshInstance;
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[1581] | 26 | class TriangleIntersectable;
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[1949] | 27 | class BvhNode;
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[2048] | 28 | class SimpleRayContainer;
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| 29 |
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[540] | 30 | struct VssRayContainer;
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| 31 |
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[1608] | 32 | struct GLUquadric;
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| 33 |
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[492] | 34 | struct PvsRenderStatistics {
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| 35 |
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| 36 | float maxError;
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| 37 | float sumError;
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[713] | 38 | int sumPvsSize;
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[492] | 39 | int frames;
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| 40 | int errorFreeFrames;
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[502] | 41 |
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[492] | 42 | PvsRenderStatistics() { Reset(); }
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| 43 |
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[498] | 44 | void Reset() {
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[492] | 45 | maxError = 0.0f;
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| 46 | sumError = 0.0f;
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| 47 | frames = 0;
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| 48 | errorFreeFrames = 0;
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[713] | 49 | sumPvsSize = 0;
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[492] | 50 | }
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| 51 |
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| 52 | float GetMaxError() { return maxError; }
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| 53 | float GetAvgError() { return sumError/frames; }
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| 54 | float GetErrorFreeFrames() { return errorFreeFrames/(float)frames; }
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[713] | 55 | float GetAvgPvs() { return sumPvsSize/(float)frames; }
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[492] | 56 |
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| 57 | };
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| 58 |
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[1824] | 59 | struct PvsCache {
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| 60 | PvsCache():mViewCell(NULL) {}
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| 61 | void Reset() { mViewCell = NULL; mPvs.Clear(); filteredBoxes.clear(); }
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| 62 | ViewCell *mViewCell;
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| 63 | ObjectPvs mPvs;
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| 64 | vector<AxisAlignedBox3> filteredBoxes;
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| 65 | };
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| 66 |
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| 67 |
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[811] | 68 | struct RenderCostSample {
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[496] | 69 |
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[811] | 70 | RenderCostSample() {}
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| 71 |
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| 72 | void Reset() {
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| 73 | mVisibleObjects = 0;
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| 74 | mVisiblePixels = 0;
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| 75 | }
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| 76 |
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[991] | 77 | Vector3 mPosition;
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| 78 |
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[811] | 79 | // visible object from the given point
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| 80 | int mVisibleObjects;
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| 81 |
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| 82 | // visible pixels
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| 83 | int mVisiblePixels;
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[1161] | 84 |
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| 85 | ObjectPvs mPvs;
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[811] | 86 |
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| 87 | };
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| 88 |
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[496] | 89 | /** Class encapsulating gl rendering for the scene.
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| 90 | There is no gl context binding so the binding is performed in the
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| 91 | derived classes
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| 92 | */
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[497] | 93 | class GlRenderer: public Renderer
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[492] | 94 | {
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[496] | 95 |
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[492] | 96 | public:
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| 97 |
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| 98 | GlRenderer(SceneGraph *sceneGraph,
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[532] | 99 | ViewCellsManager *viewcells,
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| 100 | KdTree *tree);
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[496] | 101 |
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[1151] | 102 | GlRenderer() {}
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| 103 |
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[1145] | 104 | virtual ~GlRenderer();
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[492] | 105 |
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[496] | 106 |
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[1931] | 107 | virtual void RandomViewPoint();
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| 108 |
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[1960] | 109 | void SetupFalseColor(const unsigned int id);
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[492] | 110 | void RenderIntersectable(Intersectable *);
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[535] | 111 | void RenderViewCell(ViewCell *vc);
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[492] | 112 | void RenderMeshInstance(MeshInstance *mi);
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[1001] | 113 | void RenderTransformedMeshInstance(TransformedMeshInstance *mi);
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[492] | 114 | void RenderMesh(Mesh *m);
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| 115 | void SetupMaterial(Material *m);
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[502] | 116 | virtual void SetupCamera();
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[1581] | 117 |
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| 118 | void
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| 119 | RenderRays(const VssRayContainer &rays);
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| 120 |
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| 121 | void
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| 122 | RenderTriangle(TriangleIntersectable *object);
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| 123 |
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[1585] | 124 | void
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| 125 | RenderBox(const AxisAlignedBox3 &box);
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| 126 |
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| 127 | void
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| 128 | RenderBvhNode(BvhNode *node);
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[1594] | 129 |
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| 130 | void
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| 131 | RenderKdNode(KdNode *node);
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| 132 |
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[497] | 133 | bool
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[496] | 134 | RenderScene();
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[492] | 135 |
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[811] | 136 | void
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| 137 | _RenderScene();
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[589] | 138 |
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[1983] | 139 | void
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[2002] | 140 | _RenderSceneTriangles();
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| 141 |
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| 142 | void
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[1983] | 143 | RenderViewPoint();
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[811] | 144 |
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[608] | 145 | virtual void
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[811] | 146 | SetupProjection(const int w, const int h, const float angle = 70.0f);
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[496] | 147 |
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[2023] | 148 | virtual bool ValidViewPoint();
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[496] | 149 |
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[1931] | 150 | virtual float
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| 151 | GetPixelError(int &pvsSize);
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[496] | 152 |
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[1931] | 153 | virtual void
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| 154 | EvalPvsStat();
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[496] | 155 |
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[2048] | 156 | virtual void EvalPvsStat(const SimpleRayContainer &viewPoints);
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| 157 |
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[1997] | 158 | virtual void InitGL();
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[496] | 159 |
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[1940] | 160 | virtual int GetWidth() const { return 0; }
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| 161 | virtual int GetHeight() const { return 0; }
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[540] | 162 |
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[1960] | 163 | unsigned int GetId(const unsigned char r,
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| 164 | const unsigned char g,
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| 165 | const unsigned char b) const;
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[1151] | 166 |
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| 167 | inline const bool GetSnapErrorFrames() { return mSnapErrorFrames; }
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| 168 | inline const string GetSnapPrefix() { return mSnapPrefix; }
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| 169 |
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| 170 | inline void SetSnapErrorFrames(bool snapframes) { mSnapErrorFrames = snapframes; }
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| 171 | inline void SetSnapPrefix(const string &pref) { mSnapPrefix = pref; }
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| 172 |
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[1931] | 173 | virtual void ClearErrorBuffer();
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| 174 |
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[2002] | 175 | virtual float GetAvgPixelError() {
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| 176 | return mPvsStat.GetAvgError()*GetWidth()*GetHeight();
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| 177 | }
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[2008] | 178 |
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| 179 | virtual float GetMaxPixelError() {
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| 180 | return mPvsStat.GetMaxError()*GetWidth()*GetHeight();
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| 181 | }
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[2002] | 182 |
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[1832] | 183 | public:
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[1940] | 184 |
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[1832] | 185 | int mFrame;
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| 186 | bool mWireFrame;
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[1931] | 187 |
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| 188 | PvsRenderStatistics mPvsStat;
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| 189 |
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| 190 | int mPvsStatFrames;
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| 191 | struct PvsErrorEntry {
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| 192 | PvsErrorEntry() {}
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| 193 | float mError;
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| 194 | int mPvsSize;
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| 195 | Vector3 mPosition;
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| 196 | Vector3 mDirection;
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| 197 | };
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[1944] | 198 | friend class GlobalLinesRenderer;
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[2017] | 199 | friend class ViewCellsManager;
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| 200 |
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[1151] | 201 | protected:
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| 202 |
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[1931] | 203 |
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| 204 | vector<PvsErrorEntry> mPvsErrorBuffer;
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[1151] | 205 |
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[1931] | 206 | PvsCache mPvsCache;
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| 207 |
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[1151] | 208 | vector<OcclusionQuery *> mOcclusionQueries;
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| 209 |
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| 210 | ObjectContainer mObjects;
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| 211 |
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| 212 | Vector3 mViewPoint;
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| 213 | Vector3 mViewDirection;
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| 214 |
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| 215 | int timerId;
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| 216 | bool mUseFalseColors;
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| 217 | bool mUseForcedColors;
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| 218 |
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| 219 | HaltonSequence halton;
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| 220 |
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| 221 |
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| 222 | bool mDetectEmptyViewSpace;
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| 223 | bool mSnapErrorFrames;
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| 224 |
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[1594] | 225 | bool mRenderBoxes;
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| 226 |
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[1151] | 227 | bool mUseGlLists;
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| 228 |
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| 229 | string mSnapPrefix;
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| 230 |
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[1608] | 231 | GLUquadric *mSphere;
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| 232 |
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[1151] | 233 | KdTree *mKdTree;
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| 234 |
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[496] | 235 | };
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| 236 |
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[1146] | 237 | /* Class implementing an OpenGl render buffer.
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| 238 | */
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[1145] | 239 | class GlRendererBuffer: public GlRenderer
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[496] | 240 | {
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[1145] | 241 |
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[496] | 242 | public:
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[1151] | 243 |
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[1968] | 244 | GlRendererBuffer(SceneGraph *sceneGraph,
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| 245 | ViewCellsManager *viewcells,
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| 246 | KdTree *tree);
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[589] | 247 |
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[1968] | 248 | virtual ~GlRendererBuffer();
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[811] | 249 |
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[1001] | 250 | /** Evaluates render cost of a point sample.
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[1968] | 251 | @param sample the render cost sample to be evaluated
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| 252 | @param useOcclusionQueries if occlusion queries should be used or item buffer
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| 253 | @param threshold number of pixels / samples from where an object is considered visible.
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[1001] | 254 | */
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[1968] | 255 | virtual void EvalRenderCostSample(RenderCostSample &sample,
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| 256 | const bool useOcclusionQueries,
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| 257 | const int threshold);
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[811] | 258 |
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[1001] | 259 | /** Evaluates render cost of a number of point samples. The point samples
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[1968] | 260 | are distributed uniformly over the defined view space.
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[811] | 261 |
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[1968] | 262 | @param numSamples the number of point samples taken
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| 263 | @param samples stores the taken point samples in a container
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| 264 | @param useOcclusionQueries if occlusion queries should be used or item buffer
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| 265 | @param threshold number of pixels / samples from where an object is considered visible.
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[1001] | 266 | */
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[1968] | 267 | virtual void SampleRenderCost(const int numSamples,
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| 268 | vector<RenderCostSample> &samples,
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| 269 | const bool useOcclusionQueries,
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| 270 | const int threshold = 0);
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[811] | 271 |
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[1968] | 272 |
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[1145] | 273 | /** Implerment in subclasses.
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| 274 | */
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[1968] | 275 | virtual void EvalPvsStat();
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[1001] | 276 |
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[2048] | 277 | virtual void EvalPvsStat(const SimpleRayContainer &viewPoints);
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[496] | 278 |
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[1968] | 279 | virtual int GetWidth() const = 0;
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| 280 | virtual int GetHeight() const = 0;
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[496] | 281 |
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[1968] | 282 | virtual void MakeCurrent() = 0;
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| 283 | virtual void DoneCurrent() = 0;
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[507] | 284 |
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[2023] | 285 | virtual bool ValidViewPoint();
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[507] | 286 |
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[1968] | 287 | virtual void SampleBeamContributions(
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| 288 | Intersectable *sourceObject,
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| 289 | Beam &beam,
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| 290 | const int samples,
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| 291 | BeamSampleStatistics &stat
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| 292 | );
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[507] | 293 |
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[1968] | 294 | virtual void
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| 295 | SampleViewpointContributions(
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| 296 | Intersectable *sourceObject,
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| 297 | const Vector3 viewPoint,
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| 298 | Beam &beam,
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| 299 | const int desiredSamples,
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| 300 | BeamSampleStatistics &stat
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| 301 | );
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[540] | 302 |
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[1968] | 303 | virtual void InitGL();
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[540] | 304 |
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[1968] | 305 | /** Computes rays from information gained with hw sampling-
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| 306 | */
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| 307 | virtual void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
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[540] | 308 |
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[1968] | 309 | virtual int ComputePvs() const = 0;
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[713] | 310 |
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[1968] | 311 | virtual int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const = 0;
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[1931] | 312 |
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| 313 |
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[1145] | 314 | protected:
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[746] | 315 |
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[1968] | 316 | unsigned int *mPixelBuffer;
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[746] | 317 |
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[1968] | 318 | static void GenQueries(const int numQueries);
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| 319 |
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| 320 | virtual void SetupProjectionForViewPoint(const Vector3 &viewPoint,
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| 321 | const Beam &beam,
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| 322 |
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| 323 | Intersectable *sourceObject);
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| 324 |
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[1001] | 325 | /** Evaluates query for one direction using item buffer.
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| 326 | */
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[1968] | 327 | virtual void EvalQueryWithItemBuffer();
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[1146] | 328 |
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[1001] | 329 | /** Evaluates query for one direction using occlusion queries.
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| 330 | */
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[1968] | 331 | virtual void EvalQueryWithOcclusionQueries();
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[997] | 332 |
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[746] | 333 | public:
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[1145] | 334 | // matt: remove qt dependencies
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[1968] | 335 | // signals:
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| 336 | // void UpdatePvsErrorItem(int i, GlRendererBuffer::PvsErrorEntry &);
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[496] | 337 | };
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| 338 |
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[1146] | 339 |
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| 340 | /** Abstract class for implmenenting a gl render widget.
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| 341 | */
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[1151] | 342 | class GlRendererWidget: public GlRenderer
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[1146] | 343 | {
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| 344 | public:
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[1968] | 345 |
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[1151] | 346 | GlRendererWidget(SceneGraph *sceneGraph, ViewCellsManager *vcm, KdTree *kdTree):
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| 347 | GlRenderer(sceneGraph, vcm, kdTree)
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[1968] | 348 | {}
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[1146] | 349 |
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[1968] | 350 | GlRendererWidget() {}
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[1146] | 351 |
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[1968] | 352 | virtual ~GlRendererWidget() {}
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[1146] | 353 |
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[1968] | 354 | //virtual void Create() {}
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| 355 | virtual void Show() {}
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[1146] | 356 |
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[1968] | 357 |
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[1146] | 358 | protected:
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| 359 |
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| 360 |
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[1968] | 361 | // SceneGraph *mSceneGraph;
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| 362 | // ViewCellsManager *mViewCellsManager;
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| 363 | // KdTree *mKdTree;
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[608] | 364 | };
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| 365 |
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[1151] | 366 | //extern GlRendererWidget *rendererWidget;
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| 367 |
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[1146] | 368 | };
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[492] | 369 |
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[1387] | 370 | #endif
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