diff options
Diffstat (limited to 'source/blender/freestyle/intern/view_map/ViewMapBuilder.h')
| -rw-r--r-- | source/blender/freestyle/intern/view_map/ViewMapBuilder.h | 424 |
1 files changed, 230 insertions, 194 deletions
diff --git a/source/blender/freestyle/intern/view_map/ViewMapBuilder.h b/source/blender/freestyle/intern/view_map/ViewMapBuilder.h index 4148ef5e436..0e3dbf9148e 100644 --- a/source/blender/freestyle/intern/view_map/ViewMapBuilder.h +++ b/source/blender/freestyle/intern/view_map/ViewMapBuilder.h @@ -47,210 +47,246 @@ #include "../winged_edge/WXEdge.h" #ifdef WITH_CXX_GUARDEDALLOC -#include "MEM_guardedalloc.h" +# include "MEM_guardedalloc.h" #endif namespace Freestyle { using namespace Geometry; -class ViewMapBuilder -{ -private: - ViewMap *_ViewMap; // result - //SilhouetteGeomEngine _GeomEngine; - ProgressBar *_pProgressBar; - RenderMonitor *_pRenderMonitor; - Vec3r _viewpoint; - bool _orthographicProjection; - Grid *_Grid; - ViewEdgeXBuilder *_pViewEdgeBuilder; - bool _EnableQI; - double _epsilon; - - // tmp values: - int _currentId; - int _currentFId; - int _currentSVertexId; - -public: - typedef enum { - sweep_line, - } intersection_algo; - - typedef enum { - ray_casting, - ray_casting_fast, - ray_casting_very_fast, - ray_casting_culled_adaptive_traditional, - ray_casting_adaptive_traditional, - ray_casting_culled_adaptive_cumulative, - ray_casting_adaptive_cumulative, - } visibility_algo; - - inline ViewMapBuilder() - { - _pProgressBar = NULL; - _pRenderMonitor = NULL; - _Grid = NULL; - _currentId = 1; - _currentFId = 0; - _currentSVertexId = 0; - _pViewEdgeBuilder = new ViewEdgeXBuilder; - _EnableQI = true; - } - - inline ~ViewMapBuilder() - { - if (_pViewEdgeBuilder) { - delete _pViewEdgeBuilder; - _pViewEdgeBuilder = NULL; - } - } - - /* Build Grid for ray casting */ - /*! Build non-culled Grid in camera space for ray casting */ - void BuildGrid(WingedEdge& we, const BBox<Vec3r>& bbox, unsigned int sceneNumFaces); - - /*! Compute Shapes from a WingedEdge containing a list of WShapes */ - void computeInitialViewEdges(WingedEdge&); - - /*! Compute Cusps */ - void computeCusps(ViewMap *ioViewMap); - - /*! Detects cusps (for a single ViewEdge) among SVertices and builds a ViewVertex on top of each cusp SVertex - * We use a hysteresis approach to avoid noise. - */ - void DetectCusps(ViewEdge *ioEdge); - - /*! Sets the current viewpoint */ - inline void setViewpoint(const Vec3r& ivp) - { - _viewpoint = ivp; - SilhouetteGeomEngine::setViewpoint(ivp); - } - - /*! Sets the current transformation - * iModelViewMatrix - * The 4x4 model view matrix, in column major order (openGL like). - * iProjection matrix - * The 4x4 projection matrix, in column major order (openGL like). - * iViewport - * The viewport. 4 real array: origin.x, origin.y, width, length - */ - inline void setTransform(const real iModelViewMatrix[4][4], const real iProjectionMatrix[4][4], - const int iViewport[4], real iFocalLength, real /*iAspect*/, real /*iFovy*/) - { - _orthographicProjection = (iProjectionMatrix[3][3] != 0.0); - SilhouetteGeomEngine::setTransform(iModelViewMatrix, iProjectionMatrix, iViewport, iFocalLength); - } - - inline void setFrustum(real iZnear, real iZfar) - { - SilhouetteGeomEngine::setFrustum(iZnear, iZfar); - } - - /*! Builds the scene view map returns the list the view map - * it is up to the caller to delete this ViewMap - * iWRoot - * The root group node containing the WEdge structured scene - */ - ViewMap *BuildViewMap(WingedEdge& we, visibility_algo iAlgo, real epsilon, const BBox<Vec3r>& bbox, - unsigned int sceneNumFaces); - - void CullViewEdges(ViewMap *ioViewMap, real viewProscenium[4], real occluderProscenium[4], - bool extensiveFEdgeSearch = true); - - /*! computes the intersection between all 2D feature edges of the scene. - * ioViewMap - * The view map. It is modified by the method. - * The list of all features edges of the scene. - * Each time an intersection is found, the 2 intersecting edges are splitted (creating 2 new vertices) - * At the end, this list is updated with the adding of all new created edges (resulting from splitting). - * iAlgo - * The algo to use for computing the intersections - */ - void ComputeIntersections(ViewMap *ioViewMap, intersection_algo iAlgo = sweep_line, real epsilon = 1.0e-06); - - /*! Computes the 2D scene silhouette edges visibility - * iGrid - * For the Ray Casting algorithm. - */ - void ComputeEdgesVisibility(ViewMap *ioViewMap, WingedEdge& we, const BBox<Vec3r>& bbox, unsigned int sceneNumFaces, - visibility_algo iAlgo = ray_casting, real epsilon = 1.0e-6); - - void setGrid(Grid *iGrid) - { - _Grid = iGrid; - } - - /*! accessors */ - - /*! Modifiers */ - inline void setProgressBar(ProgressBar *iProgressBar) - { - _pProgressBar = iProgressBar; - } - - inline void setRenderMonitor(RenderMonitor *iRenderMonitor) - { - _pRenderMonitor = iRenderMonitor; - } - - inline void setEnableQI(bool iBool) - { - _EnableQI = iBool; - } - -protected: - /*! Computes intersections on all edges of the scene using a sweep line algorithm */ - void ComputeSweepLineIntersections(ViewMap *ioViewMap, real epsilon = 1.0e-6); - - /*! Computes the 2D scene silhouette edges visibility using a ray casting. On each edge, a ray is cast - * to check its quantitative invisibility. The list of occluders are each time stored in the tested edge. - * ioViewMap - * The view map. - * The 2D scene silhouette edges as FEdges. - * These edges have already been splitted at their intersections points. - * Thus, these edges do not intersect anymore. - * The visibility corresponding to each edge of ioScene is set is this edge. - */ - void ComputeRayCastingVisibility(ViewMap *ioViewMap, real epsilon = 1.0e-6); - void ComputeFastRayCastingVisibility(ViewMap *ioViewMap, real epsilon = 1.0e-6); - void ComputeVeryFastRayCastingVisibility(ViewMap *ioViewMap, real epsilon = 1.0e-6); - - void ComputeCumulativeVisibility(ViewMap *ioViewMap, WingedEdge& we, const BBox<Vec3r>& bbox, real epsilon, - bool cull, GridDensityProviderFactory& factory); - void ComputeDetailedVisibility(ViewMap *ioViewMap, WingedEdge& we, const BBox<Vec3r>& bbox, real epsilon, - bool cull, GridDensityProviderFactory& factory); - - /*! Compute the visibility for the FEdge fe. - * The occluders are added to fe occluders list. - * fe - * The FEdge - * iGrid - * The grid used to compute the ray casting visibility - * epsilon - * The epsilon used for computation - * oShapeId - * fe is the border (in 2D) between 2 2D spaces. - * if fe is a silhouette, One of these 2D spaces is occupied by the shape to which fe belongs (on its left) - * and the other one is either occupied by another shape or empty or occupied by the same shape. - * We use this ray csating operation to determine which shape lies on fe's right. - * The result is the shape id stored in oShapeId - */ - int ComputeRayCastingVisibility(FEdge *fe, Grid *iGrid, real epsilon, set<ViewShape*>& oOccluders, - Polygon3r **oaPolygon, unsigned timestamp); - // FIXME - void FindOccludee(FEdge *fe, Grid *iGrid, real epsilon, Polygon3r **oaPolygon, unsigned timestamp); - void FindOccludee(FEdge *fe, Grid *iGrid, real epsilon, Polygon3r **oaPolygon, unsigned timestamp, - Vec3r& u, Vec3r& A, Vec3r& origin, Vec3r& edgeDir, vector<WVertex*>& faceVertices); +class ViewMapBuilder { + private: + ViewMap *_ViewMap; // result + //SilhouetteGeomEngine _GeomEngine; + ProgressBar *_pProgressBar; + RenderMonitor *_pRenderMonitor; + Vec3r _viewpoint; + bool _orthographicProjection; + Grid *_Grid; + ViewEdgeXBuilder *_pViewEdgeBuilder; + bool _EnableQI; + double _epsilon; + + // tmp values: + int _currentId; + int _currentFId; + int _currentSVertexId; + + public: + typedef enum { + sweep_line, + } intersection_algo; + + typedef enum { + ray_casting, + ray_casting_fast, + ray_casting_very_fast, + ray_casting_culled_adaptive_traditional, + ray_casting_adaptive_traditional, + ray_casting_culled_adaptive_cumulative, + ray_casting_adaptive_cumulative, + } visibility_algo; + + inline ViewMapBuilder() + { + _pProgressBar = NULL; + _pRenderMonitor = NULL; + _Grid = NULL; + _currentId = 1; + _currentFId = 0; + _currentSVertexId = 0; + _pViewEdgeBuilder = new ViewEdgeXBuilder; + _EnableQI = true; + } + + inline ~ViewMapBuilder() + { + if (_pViewEdgeBuilder) { + delete _pViewEdgeBuilder; + _pViewEdgeBuilder = NULL; + } + } + + /* Build Grid for ray casting */ + /*! Build non-culled Grid in camera space for ray casting */ + void BuildGrid(WingedEdge &we, const BBox<Vec3r> &bbox, unsigned int sceneNumFaces); + + /*! Compute Shapes from a WingedEdge containing a list of WShapes */ + void computeInitialViewEdges(WingedEdge &); + + /*! Compute Cusps */ + void computeCusps(ViewMap *ioViewMap); + + /*! Detects cusps (for a single ViewEdge) among SVertices and builds a ViewVertex on top of each cusp SVertex + * We use a hysteresis approach to avoid noise. + */ + void DetectCusps(ViewEdge *ioEdge); + + /*! Sets the current viewpoint */ + inline void setViewpoint(const Vec3r &ivp) + { + _viewpoint = ivp; + SilhouetteGeomEngine::setViewpoint(ivp); + } + + /*! Sets the current transformation + * iModelViewMatrix + * The 4x4 model view matrix, in column major order (openGL like). + * iProjection matrix + * The 4x4 projection matrix, in column major order (openGL like). + * iViewport + * The viewport. 4 real array: origin.x, origin.y, width, length + */ + inline void setTransform(const real iModelViewMatrix[4][4], + const real iProjectionMatrix[4][4], + const int iViewport[4], + real iFocalLength, + real /*iAspect*/, + real /*iFovy*/) + { + _orthographicProjection = (iProjectionMatrix[3][3] != 0.0); + SilhouetteGeomEngine::setTransform( + iModelViewMatrix, iProjectionMatrix, iViewport, iFocalLength); + } + + inline void setFrustum(real iZnear, real iZfar) + { + SilhouetteGeomEngine::setFrustum(iZnear, iZfar); + } + + /*! Builds the scene view map returns the list the view map + * it is up to the caller to delete this ViewMap + * iWRoot + * The root group node containing the WEdge structured scene + */ + ViewMap *BuildViewMap(WingedEdge &we, + visibility_algo iAlgo, + real epsilon, + const BBox<Vec3r> &bbox, + unsigned int sceneNumFaces); + + void CullViewEdges(ViewMap *ioViewMap, + real viewProscenium[4], + real occluderProscenium[4], + bool extensiveFEdgeSearch = true); + + /*! computes the intersection between all 2D feature edges of the scene. + * ioViewMap + * The view map. It is modified by the method. + * The list of all features edges of the scene. + * Each time an intersection is found, the 2 intersecting edges are splitted (creating 2 new vertices) + * At the end, this list is updated with the adding of all new created edges (resulting from splitting). + * iAlgo + * The algo to use for computing the intersections + */ + void ComputeIntersections(ViewMap *ioViewMap, + intersection_algo iAlgo = sweep_line, + real epsilon = 1.0e-06); + + /*! Computes the 2D scene silhouette edges visibility + * iGrid + * For the Ray Casting algorithm. + */ + void ComputeEdgesVisibility(ViewMap *ioViewMap, + WingedEdge &we, + const BBox<Vec3r> &bbox, + unsigned int sceneNumFaces, + visibility_algo iAlgo = ray_casting, + real epsilon = 1.0e-6); + + void setGrid(Grid *iGrid) + { + _Grid = iGrid; + } + + /*! accessors */ + + /*! Modifiers */ + inline void setProgressBar(ProgressBar *iProgressBar) + { + _pProgressBar = iProgressBar; + } + + inline void setRenderMonitor(RenderMonitor *iRenderMonitor) + { + _pRenderMonitor = iRenderMonitor; + } + + inline void setEnableQI(bool iBool) + { + _EnableQI = iBool; + } + + protected: + /*! Computes intersections on all edges of the scene using a sweep line algorithm */ + void ComputeSweepLineIntersections(ViewMap *ioViewMap, real epsilon = 1.0e-6); + + /*! Computes the 2D scene silhouette edges visibility using a ray casting. On each edge, a ray is cast + * to check its quantitative invisibility. The list of occluders are each time stored in the tested edge. + * ioViewMap + * The view map. + * The 2D scene silhouette edges as FEdges. + * These edges have already been splitted at their intersections points. + * Thus, these edges do not intersect anymore. + * The visibility corresponding to each edge of ioScene is set is this edge. + */ + void ComputeRayCastingVisibility(ViewMap *ioViewMap, real epsilon = 1.0e-6); + void ComputeFastRayCastingVisibility(ViewMap *ioViewMap, real epsilon = 1.0e-6); + void ComputeVeryFastRayCastingVisibility(ViewMap *ioViewMap, real epsilon = 1.0e-6); + + void ComputeCumulativeVisibility(ViewMap *ioViewMap, + WingedEdge &we, + const BBox<Vec3r> &bbox, + real epsilon, + bool cull, + GridDensityProviderFactory &factory); + void ComputeDetailedVisibility(ViewMap *ioViewMap, + WingedEdge &we, + const BBox<Vec3r> &bbox, + real epsilon, + bool cull, + GridDensityProviderFactory &factory); + + /*! Compute the visibility for the FEdge fe. + * The occluders are added to fe occluders list. + * fe + * The FEdge + * iGrid + * The grid used to compute the ray casting visibility + * epsilon + * The epsilon used for computation + * oShapeId + * fe is the border (in 2D) between 2 2D spaces. + * if fe is a silhouette, One of these 2D spaces is occupied by the shape to which fe belongs (on its left) + * and the other one is either occupied by another shape or empty or occupied by the same shape. + * We use this ray csating operation to determine which shape lies on fe's right. + * The result is the shape id stored in oShapeId + */ + int ComputeRayCastingVisibility(FEdge *fe, + Grid *iGrid, + real epsilon, + set<ViewShape *> &oOccluders, + Polygon3r **oaPolygon, + unsigned timestamp); + // FIXME + void FindOccludee( + FEdge *fe, Grid *iGrid, real epsilon, Polygon3r **oaPolygon, unsigned timestamp); + void FindOccludee(FEdge *fe, + Grid *iGrid, + real epsilon, + Polygon3r **oaPolygon, + unsigned timestamp, + Vec3r &u, + Vec3r &A, + Vec3r &origin, + Vec3r &edgeDir, + vector<WVertex *> &faceVertices); #ifdef WITH_CXX_GUARDEDALLOC - MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:ViewMapBuilder") + MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:ViewMapBuilder") #endif }; } /* namespace Freestyle */ -#endif // __FREESTYLE_VIEW_MAP_BUILDER_H__ +#endif // __FREESTYLE_VIEW_MAP_BUILDER_H__ |