Base-class for direct OpenGL renderers.
This allows classes to circumvent passing of TBuffer3D and use user-provided OpenGL code. By convention, if you want class TFoo : public TObject to have direct rendering you should also provide TFooGL : public TGLObject and implement abstract functions SetModel() and SetBBox(). TAttBBox can be used to facilitate calculation of bounding-boxes. See TPointSet3D and TPointSet3DGL.
Definition at line 21 of file TGLObject.h.
Public Member Functions | |
TGLObject () | |
~TGLObject () override | |
TClass * | IsA () const override |
Bool_t | KeepDuringSmartRefresh () const override |
virtual void | SetBBox ()=0 |
virtual Bool_t | SetModel (TObject *obj, const Option_t *opt=nullptr)=0 |
Bool_t | ShouldDLCache (const TGLRnrCtx &rnrCtx) const override |
Decide if display-list should be used for this pass rendering, as determined by rnrCtx. | |
void | Streamer (TBuffer &) override |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
void | UpdateBoundingBox () override |
Update bounding box from external source. | |
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TGLLogicalShape () | |
global flag for usage of display-lists in shapes that use vertex arrays | |
TGLLogicalShape (const TBuffer3D &buffer) | |
Constructor from TBuffer3D. | |
TGLLogicalShape (TObject *obj) | |
Constructor with external object. | |
virtual | ~TGLLogicalShape () |
Destroy logical shape. | |
void | AddRef (TGLPhysicalShape *phys) const |
Add reference to given physical shape. | |
virtual Bool_t | AlwaysSecondarySelect () const |
const TGLBoundingBox & | BoundingBox () const |
void | DestroyPhysicals () |
Destroy all physicals attached to this logical. | |
virtual void | DirectDraw (TGLRnrCtx &rnrCtx) const =0 |
virtual void | DLCacheClear () |
Clear all entries for all LODs for this drawable from the display list cache but keeping the reserved ids from GL context. | |
virtual void | DLCacheDrop () |
Drop all entries for all LODs for this drawable from the display list cache, WITHOUT returning the reserved ids to GL context. | |
virtual void | DLCachePurge () |
Purge all entries for all LODs for this drawable from the display list cache, returning the reserved ids to GL context. | |
virtual UInt_t | DLOffset (Short_t) const |
virtual void | Draw (TGLRnrCtx &rnrCtx) const |
Draw the GL drawable, using draw flags. | |
virtual void | DrawHighlight (TGLRnrCtx &rnrCtx, const TGLPhysicalShape *pshp, Int_t lvl=-1) const |
Draw the logical shape in highlight mode. | |
TObject * | GetExternal () const |
const TGLPhysicalShape * | GetFirstPhysical () const |
TGLScene * | GetScene () const |
TObject * | ID () const |
virtual Bool_t | IgnoreSizeForOfInterest () const |
Return true if size of this shape should be ignored when determining if the object should be drawn. | |
void | InvokeContextMenu (TContextMenu &menu, UInt_t x, UInt_t y) const |
Invoke popup menu or our bound external TObject (if any), using passed 'menu' object, at location 'x' 'y'. | |
virtual void | ProcessSelection (TGLRnrCtx &rnrCtx, TGLSelectRecord &rec) |
Virtual method called-back after a secondary selection hit is recorded (see TGLViewer::HandleButton(), Ctrl-Button1). | |
virtual Short_t | QuantizeShapeLOD (Short_t shapeLOD, Short_t combiLOD) const |
Logical shapes usually support only discreet LOD values, especially in view of display-list caching. | |
UInt_t | Ref () const |
Bool_t | SetDLCache (Bool_t cached) |
Modify capture of draws into display list cache kTRUE - capture, kFALSE direct draw. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
void | StrongRef (Bool_t strong) const |
void | SubRef (TGLPhysicalShape *phys) const |
Remove reference to given physical shape, potentially deleting this object when hitting zero ref-count (if fRefStrong is true). | |
virtual ELODAxes | SupportedLODAxes () const |
virtual Bool_t | SupportsSecondarySelect () const |
UInt_t | UnrefFirstPhysical () |
Unreferenced first physical in the list, returning its id and making it fit for destruction somewhere else. | |
void | UpdateBoundingBoxesOfPhysicals () |
Update bounding-boxed of all dependent physicals. | |
Static Public Member Functions | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static TClass * | GetGLRenderer (TClass *isa) |
Return direct-rendering GL class for class isa. | |
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static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static Bool_t | GetIgnoreSizeForCameraInterest () |
Get state of static fgIgnoreSizeForCameraInterest flag. | |
static void | SetEnvDefaults () |
static void | SetIgnoreSizeForCameraInterest (Bool_t isfci) |
Set state of static fgIgnoreSizeForCameraInterest flag. | |
Protected Member Functions | |
template<class TT > | |
TT * | DynCast (TObject *obj) |
void | SetAxisAlignedBBox (const Float_t *p) |
Set axis-aligned bounding-box. | |
void | SetAxisAlignedBBox (Float_t xmin, Float_t xmax, Float_t ymin, Float_t ymax, Float_t zmin, Float_t zmax) |
Set axis-aligned bounding-box. | |
Bool_t | SetModelCheckClass (TObject *obj, TClass *cls) |
Checks if obj is of proper class and sets the model. | |
template<class TT > | |
TT * | SetModelDynCast (TObject *obj) |
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void | PurgeDLRange (UInt_t base, Int_t size) const |
External object is a fake. | |
Protected Attributes | |
Bool_t | fMultiColor |
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TGLBoundingBox | fBoundingBox |
Also plays the role of ID. | |
UInt_t | fDLBase |
scene where object is stored (can be zero!) | |
Bool_t | fDLCache |
display-list validity bit-field | |
Int_t | fDLSize |
display-list id base | |
UShort_t | fDLValid |
display-list size for different LODs | |
TObject * | fExternalObj |
first replica | |
TGLPhysicalShape * | fFirstPhysical |
physical instance ref counting | |
Bool_t | fOwnExtObj |
Strong ref (delete on 0 ref); not in scene. | |
UInt_t | fRef |
Bool_t | fRefStrong |
use display list caching | |
TGLScene * | fScene |
Shape's bounding box. | |
Static Private Member Functions | |
static TClass * | SearchGLRenderer (TClass *cls) |
Recursively search cls and its base classes for a GL-renderer class. | |
Static Private Attributes | |
static TMap | fgGLClassMap |
Additional Inherited Members | |
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enum | ELODAxes { kLODAxesNone = 0 , kLODAxesX = 1 << 0 , kLODAxesY = 1 << 1 , kLODAxesZ = 1 << 2 , kLODAxesAll = kLODAxesX | kLODAxesY | kLODAxesZ } |
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static Bool_t | fgIgnoreSizeForCameraInterest = kFALSE |
static Bool_t | fgUseDLs = kTRUE |
static Bool_t | fgUseDLsForVertArrs = kTRUE |
global flag for usage of display-lists | |
#include <TGLObject.h>
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inline |
Definition at line 53 of file TGLObject.h.
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inlineoverride |
Definition at line 54 of file TGLObject.h.
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static |
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inlinestaticconstexpr |
Definition at line 74 of file TGLObject.h.
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inlinestatic |
Definition at line 74 of file TGLObject.h.
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inlineprotected |
Definition at line 45 of file TGLObject.h.
Return direct-rendering GL class for class isa.
Zero is a valid response.
Definition at line 135 of file TGLObject.cxx.
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inlineoverridevirtual |
Reimplemented from TGLLogicalShape.
Reimplemented in TGLParametricEquationGL, TGLPlot3D, TH3GL, and TPointSet3DGL.
Definition at line 74 of file TGLObject.h.
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inlineoverridevirtual |
Reimplemented from TGLLogicalShape.
Reimplemented in TGLParametricEquationGL, and TGLPlot3D.
Definition at line 62 of file TGLObject.h.
Recursively search cls and its base classes for a GL-renderer class.
Definition at line 108 of file TGLObject.cxx.
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protected |
Set axis-aligned bounding-box.
Protected helper for subclasses.
Definition at line 98 of file TGLObject.cxx.
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protected |
Set axis-aligned bounding-box.
Protected helper for subclasses.
Definition at line 86 of file TGLObject.cxx.
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pure virtual |
Implemented in TEveArrowGL, TEveBoxGL, TEveBoxProjectedGL, TEveCalo2DGL, TEveCalo3DGL, TEveCaloLegoGL, TEveDigitSetGL, TEveJetConeGL, TEveJetConeProjectedGL, TEvePlot3DGL, TEvePolygonSetProjectedGL, TEveProjectionAxesGL, TEveStraightLineSetGL, TEveTextGL, TEveTriangleSetGL, TF2GL, TGLParametricEquationGL, TH2GL, TH3GL, and TPointSet3DGL.
Implemented in TEveArrowGL, TEveBoxGL, TEveBoxProjectedGL, TEveBoxSetGL, TEveCalo2DGL, TEveCalo3DGL, TEveCaloLegoGL, TEveJetConeGL, TEveJetConeProjectedGL, TEveLineGL, TEvePlot3DGL, TEvePolygonSetProjectedGL, TEveProjectionAxesGL, TEveQuadSetGL, TEveStraightLineSetGL, TEveTextGL, TEveTrackGL, TEveTrackProjectedGL, TEveTriangleSetGL, TF2GL, TGLParametricEquationGL, TH2GL, TH3GL, and TPointSet3DGL.
Checks if obj is of proper class and sets the model.
Protected helper for subclasses. Most sub-classes use exception-throwing SetModelDynCast() instead.
Definition at line 71 of file TGLObject.cxx.
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inlineprotected |
Definition at line 37 of file TGLObject.h.
Decide if display-list should be used for this pass rendering, as determined by rnrCtx.
Reimplemented from TGLLogicalShape.
Reimplemented in TPointSet3DGL.
Definition at line 41 of file TGLObject.cxx.
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overridevirtual |
Reimplemented from TGLLogicalShape.
Reimplemented in TGLParametricEquationGL, TGLPlot3D, TH3GL, and TPointSet3DGL.
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inline |
Definition at line 74 of file TGLObject.h.
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overridevirtual |
Update bounding box from external source.
We call abstract SetBBox() and propagate the change to all attached physicals.
Reimplemented from TGLLogicalShape.
Definition at line 60 of file TGLObject.cxx.
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staticprivate |
Definition at line 24 of file TGLObject.h.
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mutableprotected |
Definition at line 28 of file TGLObject.h.