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0024819: TKOpenGl - extend the ray-tracing core by visualization of lines, text and point sprites

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OpenGl_GraphicDriver::Redraw() - do not recompute structures more than required
OpenGl_Workspace::Raytrace() - bind proper FBO before clearing it
Visual3d_View::Redraw() - perform automatic 2nd redraw on device lost
This commit is contained in:
osa
2014-07-03 15:49:48 +04:00
committed by apn
parent 8d3865d870
commit a89742cf17
11 changed files with 508 additions and 93 deletions
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56
src/OpenGl/OpenGl_Workspace.hxx
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@@ -93,6 +93,37 @@ struct OpenGl_Material
};
DEFINE_STANDARD_HANDLE (OpenGl_RaytraceFilter, OpenGl_RenderFilter)
//! Graphical raytracing filter.
//! Filters out all raytracable structures.
class OpenGl_RaytraceFilter : public OpenGl_RenderFilter
{
public:
//! Default constructor.
OpenGl_RaytraceFilter() {}
//! Remembers the previously set filter.
inline void SetPrevRenderFilter (const Handle(OpenGl_RenderFilter)& theFilter)
{
myPrevRenderFilter = theFilter;
}
//! Checks whether the element can be rendered or not.
//! @param theElement [in] the element to check.
//! @return True if element can be rendered.
virtual Standard_Boolean CanRender (const OpenGl_Element* theElement);
private:
Handle(OpenGl_RenderFilter) myPrevRenderFilter;
public:
DEFINE_STANDARD_RTTI(OpenGl_RaytraceFilter)
};
//! Represents window with GL context.
//! Provides methods to render primitives and maintain GL state.
class OpenGl_Workspace : public OpenGl_Window
@@ -228,6 +259,9 @@ public:
//! @return true if clipping algorithm enabled
inline Standard_Boolean IsCullingEnabled() const { return myIsCullingEnabled; }
//! Returns a flag whether to redraw the scene using OpenGL rasterization
Standard_Boolean ToRedrawGL() const { return myToRedrawGL; }
protected:
//! Copy content of Back buffer to the Front buffer
@@ -277,6 +311,7 @@ protected:
OpenGl_RT_uDirectLB,
OpenGl_RT_uDirectRT,
OpenGl_RT_uDirectRB,
OpenGl_RT_uInvModelProj,
OpenGl_RT_uSceneRad,
OpenGl_RT_uSceneEps,
@@ -320,7 +355,10 @@ protected:
OpenGl_RT_FSAAInputTexture = 12,
OpenGl_RT_SceneTransformTexture = 13
OpenGl_RT_SceneTransformTexture = 13,
OpenGl_RT_OpenGlColorTexture = 14,
OpenGl_RT_OpenGlDepthTexture = 15
};
//! Tool class for management of shader sources.
@@ -489,7 +527,8 @@ protected: //! @name methods related to ray-tracing
void UpdateCamera (const NCollection_Mat4<GLdouble>& theOrientation,
const NCollection_Mat4<GLdouble>& theViewMapping,
OpenGl_Vec3 theOrigins[4],
OpenGl_Vec3 theDirects[4]);
OpenGl_Vec3 theDirects[4],
NCollection_Mat4<GLdouble>& theInvModelProj);
//! Runs ray-tracing shader programs.
Standard_Boolean RunRaytraceShaders (const Graphic3d_CView& theCView,
@@ -497,6 +536,7 @@ protected: //! @name methods related to ray-tracing
const Standard_Integer theSizeY,
const OpenGl_Vec3 theOrigins[4],
const OpenGl_Vec3 theDirects[4],
const OpenGl_Matrix& theInvModelProj,
OpenGl_FrameBuffer* theFrameBuffer);
//! Redraws the window using OpenGL/GLSL ray-tracing.
@@ -504,6 +544,8 @@ protected: //! @name methods related to ray-tracing
const Standard_Integer theSizeX,
const Standard_Integer theSizeY,
const Standard_Boolean theToSwap,
const Aspect_CLayer2d& theCOverLayer,
const Aspect_CLayer2d& theCUnderLayer,
OpenGl_FrameBuffer* theFrameBuffer);
protected: //! @name fields related to ray-tracing
@@ -575,6 +617,8 @@ protected: //! @name fields related to ray-tracing
Handle(OpenGl_FrameBuffer) myRaytraceFBO1;
//! Framebuffer (FBO) to perform adaptive FSAA.
Handle(OpenGl_FrameBuffer) myRaytraceFBO2;
//! Framebuffer (FBO) for pre-raytrace rendering by OpenGL.
Handle(OpenGl_FrameBuffer) myOpenGlFBO;
//! State of OpenGL view.
Standard_Size myViewModificationStatus;
@@ -590,6 +634,12 @@ protected: //! @name fields related to ray-tracing
//! Cached locations of frequently used uniform variables.
Standard_Integer myUniformLocations[2][OpenGl_RT_NbVariables];
//! Graphical raytracing filter to filter out all raytracable structures.
Handle(OpenGl_RaytraceFilter) myRaytraceFilter;
//! Redraw the scene using OpenGL rasterization or raytracing?
Standard_Boolean myToRedrawGL;
protected: //! @name protected fields
Handle(OpenGl_PrinterContext) myPrintContext;
@@ -605,6 +655,8 @@ protected: //! @name protected fields
Standard_Boolean myUseGLLight;
Standard_Boolean myIsCullingEnabled; //!< frustum culling flag
unsigned int myFrameCounter; //!< redraw counter, for debugging
protected: //! @name fields related to status
Handle(OpenGl_RenderFilter) myRenderFilter;