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0024520: Implementing affine transformations in ray-tracing

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This commit is contained in:
duv
2014-03-31 16:36:21 +04:00
committed by apn
parent ea095e0edb
commit 84c71f29e4
4 changed files with 384 additions and 87 deletions
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23
src/OpenGl/OpenGl_Workspace.hxx
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@@ -242,6 +242,14 @@ protected:
OpenGl_RT_FAIL
};
//! Describes update mode (state).
enum GeomUpdateMode
{
OpenGl_GUM_CHECK, //!< check if geometry update is necessary
OpenGl_GUM_PREPARE, //!< collect unchanged objects
OpenGl_GUM_UPDATE //!< update raytracing data, rebuild changed objects
};
//! Defines frequently used shader variables.
enum ShaderVariableIndex
{
@@ -272,6 +280,8 @@ protected:
OpenGl_RT_uOffsetY,
OpenGl_RT_uSamples,
OpenGl_RT_uEnvironmentEnable,
OpenGl_RT_NbVariables // special field
};
@@ -295,7 +305,9 @@ protected:
OpenGl_RT_RaytraceMaterialTexture = 10,
OpenGl_RT_RaytraceLightSrcTexture = 11,
OpenGl_RT_FSAAInputTexture = 12
OpenGl_RT_FSAAInputTexture = 12,
OpenGl_RT_SceneTransformTexture = 13
};
//! Tool class for management of shader sources.
@@ -348,7 +360,7 @@ protected:
protected: //! @name methods related to ray-tracing
//! Updates 3D scene geometry for ray-tracing.
Standard_Boolean UpdateRaytraceGeometry (Standard_Boolean theCheck);
Standard_Boolean UpdateRaytraceGeometry (GeomUpdateMode theMode);
//! Checks to see if the structure is modified.
Standard_Boolean CheckRaytraceStructure (const OpenGl_Structure* theStructure);
@@ -365,7 +377,7 @@ protected: //! @name methods related to ray-tracing
//! Adds OpenGL primitive array to ray-traced scene geometry.
OpenGl_TriangleSet* AddRaytracePrimitiveArray (
const CALL_DEF_PARRAY* theArray, int theMatID, const Standard_ShortReal* theTrans);
const OpenGl_PrimitiveArray* theArray, int theMatID, const Standard_ShortReal* theTrans);
//! Adds vertex indices from OpenGL primitive array to ray-traced scene geometry.
Standard_Boolean AddRaytraceVertexIndices (OpenGl_TriangleSet* theSet,
@@ -475,6 +487,8 @@ protected: //! @name fields related to ray-tracing
Handle(OpenGl_TextureBufferArb) mySceneMinPointTexture;
//! Texture buffer of maximum points of high-level BVH nodes.
Handle(OpenGl_TextureBufferArb) mySceneMaxPointTexture;
//! Texture buffer of transformations of high-level BVH nodes.
Handle(OpenGl_TextureBufferArb) mySceneTransformTexture;
//! Texture buffer of data records of bottom-level BVH nodes.
Handle(OpenGl_TextureBufferArb) myObjectNodeInfoTexture;
@@ -511,6 +525,9 @@ protected: //! @name fields related to ray-tracing
//! State of OpenGL structures reflected to ray-tracing.
std::map<const OpenGl_Structure*, Standard_Size> myStructureStates;
//! PrimitiveArray to TriangleSet map for scene partial update.
std::map<const OpenGl_PrimitiveArray*, OpenGl_TriangleSet*> myArrayToTrianglesMap;
//! Cached locations of frequently used uniform variables.
Standard_Integer myUniformLocations[2][OpenGl_RT_NbVariables];