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0024307: TKOpenGl - efficient culling of large number of presentations

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Implement SAT intersection tests and frustum culling algorithm using BVH trees.

New Draw command vfrustumculling to manage frustum culling.
Add test cases bugs/vis/bug24307_1 and bugs/vis/bug24307_2.
Remove CALL_DEF_BOUNDBOX and CALL_DEF_BOUNDS.
This commit is contained in:
vpa
2014-06-20 11:26:14 +04:00
committed by apn
parent c1c1aefa71
commit b7cd4ba795
53 changed files with 1885 additions and 538 deletions
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16
src/OpenGl/OpenGl_View.hxx
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@@ -37,6 +37,7 @@
#include <Graphic3d_ZLayerSettings.hxx>
#include <Visual3d_TypeOfSurfaceDetail.hxx>
#include <OpenGl_BVHTreeSelector.hxx>
#include <OpenGl_LayerList.hxx>
#include <OpenGl_Light.hxx>
#include <OpenGl_LineAttributes.hxx>
@@ -164,6 +165,10 @@ class OpenGl_View : public MMgt_TShared
void SetZLayerSettings (const Standard_Integer theLayerId,
const Graphic3d_ZLayerSettings theSettings);
//! Changes the priority of a structure within its ZLayer
void ChangePriority (const OpenGl_Structure *theStructure,
const Standard_Integer theNewPriority);
void CreateBackgroundTexture (const Standard_CString AFileName, const Aspect_FillMethod AFillStyle);
void SetBackgroundTextureStyle (const Aspect_FillMethod FillStyle);
void SetBackgroundGradient (const Quantity_Color& AColor1, const Quantity_Color& AColor2, const Aspect_GradientFillMethod AType);
@@ -190,6 +195,14 @@ class OpenGl_View : public MMgt_TShared
//! Returns visualization mode for objects in the view.
Visual3d_TypeOfSurfaceDetail SurfaceDetail() const { return mySurfaceDetail; }
//! Returns selector for BVH tree, providing a possibility to store information
//! about current view volume and to detect which objects are overlapping it.
OpenGl_BVHTreeSelector& BVHTreeSelector() { return myBVHSelector; }
//! Marks BVH tree for given priority list as dirty and
//! marks primitive set for rebuild.
void InvalidateBVHData (const Standard_Integer theLayerId);
void GetMatrices (TColStd_Array2OfReal& theMatOrient,
TColStd_Array2OfReal& theMatMapping) const;
@@ -273,6 +286,9 @@ protected:
StateInfo myLastViewMappingState;
StateInfo myLastLightSourceState;
//! Is needed for selection of overlapping objects and storage of the current view volume
OpenGl_BVHTreeSelector myBVHSelector;
Standard_Size myModificationState;
public: