[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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[1585] | 27 | class BvhNode;
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| 28 |
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[540] | 29 | struct VssRayContainer;
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| 30 |
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[492] | 31 | struct PvsRenderStatistics {
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| 32 |
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| 33 | float maxError;
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| 34 | float sumError;
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[713] | 35 | int sumPvsSize;
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[492] | 36 | int frames;
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| 37 | int errorFreeFrames;
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[502] | 38 |
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[492] | 39 | PvsRenderStatistics() { Reset(); }
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| 40 |
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[498] | 41 | void Reset() {
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[492] | 42 | maxError = 0.0f;
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| 43 | sumError = 0.0f;
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| 44 | frames = 0;
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| 45 | errorFreeFrames = 0;
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[713] | 46 | sumPvsSize = 0;
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[492] | 47 | }
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| 48 |
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| 49 | float GetMaxError() { return maxError; }
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| 50 | float GetAvgError() { return sumError/frames; }
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| 51 | float GetErrorFreeFrames() { return errorFreeFrames/(float)frames; }
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[713] | 52 | float GetAvgPvs() { return sumPvsSize/(float)frames; }
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[492] | 53 |
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| 54 | };
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| 55 |
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[811] | 56 | struct RenderCostSample {
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[496] | 57 |
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[811] | 58 | RenderCostSample() {}
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| 59 |
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| 60 | void Reset() {
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| 61 | mVisibleObjects = 0;
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| 62 | mVisiblePixels = 0;
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| 63 | }
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| 64 |
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[991] | 65 | Vector3 mPosition;
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| 66 |
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[811] | 67 | // visible object from the given point
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| 68 | int mVisibleObjects;
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| 69 |
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| 70 | // visible pixels
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| 71 | int mVisiblePixels;
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[1161] | 72 |
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| 73 | ObjectPvs mPvs;
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[811] | 74 |
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| 75 | };
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| 76 |
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[496] | 77 | /** Class encapsulating gl rendering for the scene.
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| 78 | There is no gl context binding so the binding is performed in the
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| 79 | derived classes
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| 80 | */
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[497] | 81 | class GlRenderer: public Renderer
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[492] | 82 | {
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[496] | 83 |
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[492] | 84 | public:
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| 85 |
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| 86 | GlRenderer(SceneGraph *sceneGraph,
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[532] | 87 | ViewCellsManager *viewcells,
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| 88 | KdTree *tree);
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[496] | 89 |
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[1151] | 90 | GlRenderer() {}
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| 91 |
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[1145] | 92 | virtual ~GlRenderer();
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[492] | 93 |
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[496] | 94 |
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[492] | 95 | void SetupFalseColor(const int id);
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| 96 | void RenderIntersectable(Intersectable *);
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[535] | 97 | void RenderViewCell(ViewCell *vc);
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[492] | 98 | void RenderMeshInstance(MeshInstance *mi);
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[1001] | 99 | void RenderTransformedMeshInstance(TransformedMeshInstance *mi);
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[492] | 100 | void RenderMesh(Mesh *m);
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| 101 | void SetupMaterial(Material *m);
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[502] | 102 | virtual void SetupCamera();
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[1581] | 103 |
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| 104 | void
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| 105 | RenderRays(const VssRayContainer &rays);
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| 106 |
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| 107 | void
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| 108 | RenderTriangle(TriangleIntersectable *object);
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| 109 |
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[1585] | 110 | void
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| 111 | RenderBox(const AxisAlignedBox3 &box);
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| 112 |
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| 113 | void
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| 114 | RenderBvhNode(BvhNode *node);
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| 115 |
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[497] | 116 | bool
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[496] | 117 | RenderScene();
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[492] | 118 |
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[811] | 119 | void
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| 120 | _RenderScene();
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[589] | 121 |
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[811] | 122 |
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[608] | 123 | virtual void
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[811] | 124 | SetupProjection(const int w, const int h, const float angle = 70.0f);
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[496] | 125 |
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| 126 |
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| 127 |
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| 128 |
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| 129 | void InitGL();
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| 130 |
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| 131 | virtual int GetWidth() const = 0;
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| 132 | virtual int GetHeight() const = 0;
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[540] | 133 |
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| 134 | int GetId(int r, int g, int b) const;
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[1151] | 135 |
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| 136 | inline const bool GetSnapErrorFrames() { return mSnapErrorFrames; }
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| 137 | inline const string GetSnapPrefix() { return mSnapPrefix; }
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| 138 |
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| 139 | inline void SetSnapErrorFrames(bool snapframes) { mSnapErrorFrames = snapframes; }
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| 140 | inline void SetSnapPrefix(const string &pref) { mSnapPrefix = pref; }
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| 141 |
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| 142 | protected:
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| 143 |
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| 144 |
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| 145 | vector<OcclusionQuery *> mOcclusionQueries;
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| 146 |
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| 147 | ObjectContainer mObjects;
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| 148 |
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| 149 | Vector3 mViewPoint;
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| 150 | Vector3 mViewDirection;
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| 151 |
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| 152 | int timerId;
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| 153 | bool mUseFalseColors;
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| 154 | bool mUseForcedColors;
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| 155 |
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| 156 | HaltonSequence halton;
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| 157 |
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| 158 | int mFrame;
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| 159 | bool mWireFrame;
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| 160 |
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| 161 | bool mDetectEmptyViewSpace;
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| 162 | bool mSnapErrorFrames;
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| 163 |
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| 164 | bool mUseGlLists;
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| 165 |
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| 166 | string mSnapPrefix;
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| 167 |
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| 168 | KdTree *mKdTree;
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| 169 |
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[496] | 170 | };
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| 171 |
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[1146] | 172 | /* Class implementing an OpenGl render buffer.
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| 173 | */
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[1145] | 174 | class GlRendererBuffer: public GlRenderer
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[496] | 175 | {
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[1145] | 176 |
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[496] | 177 | public:
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[1151] | 178 |
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[1145] | 179 | GlRendererBuffer(SceneGraph *sceneGraph,
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[811] | 180 | ViewCellsManager *viewcells,
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| 181 | KdTree *tree);
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[589] | 182 |
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[811] | 183 |
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[1001] | 184 | /** Evaluates render cost of a point sample.
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| 185 | @param sample the render cost sample to be evaluated
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| 186 | @param useOcclusionQueries if occlusion queries should be used or item buffer
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| 187 | @param threshold number of pixels / samples from where an object is considered visible.
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| 188 | */
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| 189 | void EvalRenderCostSample(RenderCostSample &sample,
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| 190 | const bool useOcclusionQueries,
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| 191 | const int threshold);
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[811] | 192 |
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[1001] | 193 | /** Evaluates render cost of a number of point samples. The point samples
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| 194 | are distributed uniformly over the defined view space.
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[811] | 195 |
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[1001] | 196 | @param numSamples the number of point samples taken
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| 197 | @param samples stores the taken point samples in a container
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| 198 | @param useOcclusionQueries if occlusion queries should be used or item buffer
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| 199 | @param threshold number of pixels / samples from where an object is considered visible.
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| 200 | */
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| 201 | void SampleRenderCost(const int numSamples,
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| 202 | vector<RenderCostSample> &samples,
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| 203 | const bool useOcclusionQueries,
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[1145] | 204 | const int threshold = 0)
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| 205 | {}
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[811] | 206 |
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[1145] | 207 | /** Implerment in subclasses.
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| 208 | */
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| 209 | void EvalPvsStat() {};
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[1001] | 210 |
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[1145] | 211 | void ClearErrorBuffer();
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[496] | 212 |
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| 213 |
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[1145] | 214 | virtual int GetWidth() const { return 0; }
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| 215 | virtual int GetHeight() const { return 0; }
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[496] | 216 |
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[507] | 217 |
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[563] | 218 | void RandomViewPoint();
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[507] | 219 | void SampleBeamContributions(
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| 220 | Intersectable *sourceObject,
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[512] | 221 | Beam &beam,
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[507] | 222 | const int samples,
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| 223 | BeamSampleStatistics &stat
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| 224 | );
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| 225 |
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| 226 | void
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| 227 | SampleViewpointContributions(
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| 228 | Intersectable *sourceObject,
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[514] | 229 | const Vector3 viewPoint,
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[512] | 230 | Beam &beam,
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[507] | 231 | const int desiredSamples,
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| 232 | BeamSampleStatistics &stat
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| 233 | );
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| 234 |
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[540] | 235 | void InitGL();
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| 236 |
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| 237 | /** Computes rays from information gained with hw sampling-
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| 238 | */
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| 239 | void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
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| 240 |
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| 241 | int ComputePvs() const;
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| 242 |
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[576] | 243 | float
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[713] | 244 | GetPixelError(int &pvsSize);
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[540] | 245 |
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| 246 | int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const;
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| 247 |
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| 248 | PvsRenderStatistics mPvsStat;
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[532] | 249 |
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[540] | 250 | int mPvsStatFrames;
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[713] | 251 | struct PvsErrorEntry {
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[1145] | 252 | PvsErrorEntry() {}
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| 253 | float mError;
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| 254 | int mPvsSize;
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| 255 | Vector3 mPosition;
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| 256 | Vector3 mDirection;
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[713] | 257 | };
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| 258 |
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| 259 | vector<PvsErrorEntry> mPvsErrorBuffer;
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| 260 |
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[997] | 261 |
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[1145] | 262 | protected:
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| 263 | unsigned int *mPixelBuffer;
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[811] | 264 |
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[513] | 265 | static void GenQueries(const int numQueries);
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[589] | 266 |
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| 267 | void SetupProjectionForViewPoint(const Vector3 &viewPoint,
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| 268 | const Beam &beam,
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[746] | 269 |
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[525] | 270 | Intersectable *sourceObject);
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[746] | 271 |
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[1001] | 272 | /** Evaluates query for one direction using item buffer.
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| 273 | */
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[997] | 274 | void EvalQueryWithItemBuffer();
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[1146] | 275 |
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[1001] | 276 | /** Evaluates query for one direction using occlusion queries.
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| 277 | */
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[997] | 278 | void EvalQueryWithOcclusionQueries();
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| 279 |
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[746] | 280 | public:
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[1145] | 281 | // matt: remove qt dependencies
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| 282 | // signals:
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| 283 | // void UpdatePvsErrorItem(int i, GlRendererBuffer::PvsErrorEntry &);
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[496] | 284 | };
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| 285 |
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[1146] | 286 |
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| 287 | /** Abstract class for implmenenting a gl render widget.
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| 288 | */
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[1151] | 289 | class GlRendererWidget: public GlRenderer
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[1146] | 290 | {
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| 291 | public:
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| 292 |
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[1151] | 293 | GlRendererWidget(SceneGraph *sceneGraph, ViewCellsManager *vcm, KdTree *kdTree):
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| 294 | GlRenderer(sceneGraph, vcm, kdTree)
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| 295 | {}
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[1146] | 296 |
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[1151] | 297 | GlRendererWidget() {}
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[1146] | 298 |
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[1151] | 299 | virtual ~GlRendererWidget() {}
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[1146] | 300 |
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| 301 | //virtual void Create() {}
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| 302 | virtual void Show() {}
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| 303 |
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| 304 |
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| 305 | protected:
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| 306 |
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| 307 |
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[1387] | 308 | // SceneGraph *mSceneGraph;
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| 309 | // ViewCellsManager *mViewCellsManager;
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| 310 | // KdTree *mKdTree;
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[608] | 311 | };
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| 312 |
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[1151] | 313 | //extern GlRendererWidget *rendererWidget;
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| 314 |
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[1146] | 315 | };
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[492] | 316 |
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[1387] | 317 | #endif
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