1760 lines
53 KiB
C++
1760 lines
53 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "vrad.h"
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#include "utlvector.h"
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#include "cmodel.h"
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#include "BSPTreeData.h"
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#include "VRAD_DispColl.h"
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#include "CollisionUtils.h"
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#include "lightmap.h"
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#include "Radial.h"
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#include "CollisionUtils.h"
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#include "mathlib/bumpvects.h"
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#include "utlrbtree.h"
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#include "tier0/fasttimer.h"
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#include "disp_vrad.h"
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class CBSPDispRayDistanceEnumerator;
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//=============================================================================
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//
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// Displacement/Face List
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//
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class CBSPDispFaceListEnumerator : public ISpatialLeafEnumerator, public IBSPTreeDataEnumerator
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{
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public:
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//=========================================================================
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//
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// Construction/Deconstruction
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//
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CBSPDispFaceListEnumerator() {};
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virtual ~CBSPDispFaceListEnumerator()
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{
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m_DispList.Purge();
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m_FaceList.Purge();
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}
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// ISpatialLeafEnumerator
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bool EnumerateLeaf( int ndxLeaf, int context );
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// IBSPTreeDataEnumerator
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bool FASTCALL EnumerateElement( int userId, int context );
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public:
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CUtlVector<CVRADDispColl*> m_DispList;
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CUtlVector<int> m_FaceList;
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};
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//=============================================================================
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//
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// RayEnumerator
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//
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class CBSPDispRayEnumerator : public ISpatialLeafEnumerator, public IBSPTreeDataEnumerator
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{
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public:
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// ISpatialLeafEnumerator
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bool EnumerateLeaf( int ndxLeaf, int context );
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// IBSPTreeDataEnumerator
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bool FASTCALL EnumerateElement( int userId, int context );
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};
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//=============================================================================
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//
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// VRad Displacement Manager
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//
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class CVRadDispMgr : public IVRadDispMgr
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{
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public:
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//=========================================================================
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//
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// Construction/Deconstruction
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//
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CVRadDispMgr();
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virtual ~CVRadDispMgr();
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// creation/destruction
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void Init( void );
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void Shutdown( void );
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// "CalcPoints"
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bool BuildDispSamples( lightinfo_t *pLightInfo, facelight_t *pFaceLight, int ndxFace );
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bool BuildDispLuxels( lightinfo_t *pLightInfo, facelight_t *pFaceLight, int ndxFace );
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bool BuildDispSamplesAndLuxels_DoFast( lightinfo_t *pLightInfo, facelight_t *pFaceLight, int ndxFace );
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// patching functions
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void MakePatches( void );
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void SubdividePatch( int iPatch );
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// pre "FinalLightFace"
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void InsertSamplesDataIntoHashTable( void );
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void InsertPatchSampleDataIntoHashTable( void );
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// "FinalLightFace"
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radial_t *BuildLuxelRadial( int ndxFace, int ndxStyle, bool bBump );
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bool SampleRadial( int ndxFace, radial_t *pRadial, Vector const &vPos, int ndxLxl, LightingValue_t *pLightSample, int sampleCount, bool bPatch );
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radial_t *BuildPatchRadial( int ndxFace, bool bBump );
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// utility
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void GetDispSurfNormal( int ndxFace, Vector &pt, Vector &ptNormal, bool bInside );
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void GetDispSurf( int ndxFace, CVRADDispColl **ppDispTree );
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// bsp tree functions
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bool ClipRayToDisp( DispTested_t &dispTested, Ray_t const &ray );
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bool ClipRayToDispInLeaf( DispTested_t &dispTested, Ray_t const &ray, int ndxLeaf );
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void ClipRayToDispInLeaf( DispTested_t &dispTested, Ray_t const &ray, int ndxLeaf,
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float& dist, dface_t*& pFace, Vector2D& luxelCoord );
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void ClipRayToDispInLeaf( DispTested_t &dispTested, Ray_t const &ray,
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int ndxLeaf, float& dist, Vector *pNormal );
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void StartRayTest( DispTested_t &dispTested );
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void AddPolysForRayTrace( void );
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// general timing -- should be moved!!
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void StartTimer( const char *name );
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void EndTimer( void );
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//=========================================================================
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//
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// Enumeration Methods
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//
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bool DispRay_EnumerateLeaf( int ndxLeaf, int context );
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bool DispRay_EnumerateElement( int userId, int context );
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bool DispRayDistance_EnumerateElement( int userId, CBSPDispRayDistanceEnumerator* pEnum );
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bool DispFaceList_EnumerateLeaf( int ndxLeaf, int context );
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bool DispFaceList_EnumerateElement( int userId, int context );
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private:
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//=========================================================================
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//
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// BSP Tree Helpers
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//
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void InsertDispIntoTree( int ndxDisp );
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void RemoveDispFromTree( int ndxDisp );
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//=========================================================================
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//
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// Displacement Data Loader (from .bsp)
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//
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void UnserializeDisps( void );
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void DispBuilderInit( CCoreDispInfo *pBuilderDisp, dface_t *pFace, int ndxFace );
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//=========================================================================
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//
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// Sampling Helpers
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//
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void RadialLuxelBuild( CVRADDispColl *pDispTree, radial_t *pRadial, int ndxStyle, bool bBump );
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void RadialLuxelAddSamples( int ndxFace, Vector const &luxelPt, Vector const &luxelNormal, float radius,
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radial_t *pRadial, int ndxRadial, bool bBump, int lightStyle );
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void RadialPatchBuild( CVRADDispColl *pDispTree, radial_t *pRadial, bool bBump );
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void RadialLuxelAddPatch( int ndxFace, Vector const &luxelPt,
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Vector const &luxelNormal, float radius,
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radial_t *pRadial, int ndxRadial, bool bBump,
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CUtlVector<CPatch*> &interestingPatches );
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bool IsNeighbor( int iDispFace, int iNeighborFace );
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void GetInterestingPatchesForLuxels(
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int ndxFace,
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CUtlVector<CPatch*> &interestingPatches,
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float patchSampleRadius );
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private:
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struct DispCollTree_t
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{
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CVRADDispColl *m_pDispTree;
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BSPTreeDataHandle_t m_Handle;
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};
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struct EnumContext_t
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{
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DispTested_t *m_pDispTested;
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Ray_t const *m_pRay;
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};
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CUtlVector<DispCollTree_t> m_DispTrees;
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IBSPTreeData *m_pBSPTreeData;
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CBSPDispRayEnumerator m_EnumDispRay;
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CBSPDispFaceListEnumerator m_EnumDispFaceList;
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int sampleCount;
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Vector *m_pSamplePos;
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CFastTimer m_Timer;
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};
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//-----------------------------------------------------------------------------
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// Purpose: expose IVRadDispMgr to vrad
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//-----------------------------------------------------------------------------
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static CVRadDispMgr s_DispMgr;
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IVRadDispMgr *StaticDispMgr( void )
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{
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return &s_DispMgr;
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}
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//=============================================================================
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//
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// Displacement/Face List
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//
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// ISpatialLeafEnumerator
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bool CBSPDispFaceListEnumerator::EnumerateLeaf( int ndxLeaf, int context )
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{
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return s_DispMgr.DispFaceList_EnumerateLeaf( ndxLeaf, context );
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}
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// IBSPTreeDataEnumerator
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bool FASTCALL CBSPDispFaceListEnumerator::EnumerateElement( int userId, int context )
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{
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return s_DispMgr.DispFaceList_EnumerateElement( userId, context );
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}
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//=============================================================================
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//
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// RayEnumerator
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//
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bool CBSPDispRayEnumerator::EnumerateLeaf( int ndxLeaf, int context )
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{
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return s_DispMgr.DispRay_EnumerateLeaf( ndxLeaf, context );
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}
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bool FASTCALL CBSPDispRayEnumerator::EnumerateElement( int userId, int context )
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{
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return s_DispMgr.DispRay_EnumerateElement( userId, context );
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}
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//-----------------------------------------------------------------------------
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// Here's an enumerator that we use for testing against disps in a leaf...
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//-----------------------------------------------------------------------------
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class CBSPDispRayDistanceEnumerator : public IBSPTreeDataEnumerator
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{
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public:
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CBSPDispRayDistanceEnumerator() : m_Distance(1.0f), m_pSurface(0) {}
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// IBSPTreeDataEnumerator
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bool FASTCALL EnumerateElement( int userId, int context )
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{
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return s_DispMgr.DispRayDistance_EnumerateElement( userId, this );
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}
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float m_Distance;
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dface_t* m_pSurface;
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DispTested_t *m_pDispTested;
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Ray_t const *m_pRay;
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Vector2D m_LuxelCoord;
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Vector m_Normal;
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};
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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CVRadDispMgr::CVRadDispMgr()
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{
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m_pBSPTreeData = CreateBSPTreeData();
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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CVRadDispMgr::~CVRadDispMgr()
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{
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DestroyBSPTreeData( m_pBSPTreeData );
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}
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//-----------------------------------------------------------------------------
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// Insert a displacement into the tree for collision
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::InsertDispIntoTree( int ndxDisp )
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{
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DispCollTree_t &dispTree = m_DispTrees[ndxDisp];
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CDispCollTree *pDispTree = dispTree.m_pDispTree;
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// get the bounding box of the tree
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Vector boxMin, boxMax;
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pDispTree->GetBounds( boxMin, boxMax );
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// add the displacement to the tree so we will collide against it
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dispTree.m_Handle = m_pBSPTreeData->Insert( ndxDisp, boxMin, boxMax );
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}
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//-----------------------------------------------------------------------------
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// Remove a displacement from the tree for collision
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::RemoveDispFromTree( int ndxDisp )
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{
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// release the tree handle
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if( m_DispTrees[ndxDisp].m_Handle != TREEDATA_INVALID_HANDLE )
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{
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m_pBSPTreeData->Remove( m_DispTrees[ndxDisp].m_Handle );
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m_DispTrees[ndxDisp].m_Handle = TREEDATA_INVALID_HANDLE;
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}
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::Init( void )
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{
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// initialize the bsp tree
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m_pBSPTreeData->Init( ToolBSPTree() );
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// read in displacements that have been compiled into the bsp file
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UnserializeDisps();
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::Shutdown( void )
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{
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// remove all displacements from the tree
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for( int ndxDisp = m_DispTrees.Size(); ndxDisp >= 0; ndxDisp-- )
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{
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RemoveDispFromTree( ndxDisp );
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}
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// shutdown the bsp tree
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m_pBSPTreeData->Shutdown();
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// purge the displacement collision tree list
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m_DispTrees.Purge();
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::DispBuilderInit( CCoreDispInfo *pBuilderDisp, dface_t *pFace, int ndxFace )
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{
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// get the .bsp displacement
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ddispinfo_t *pDisp = &g_dispinfo[pFace->dispinfo];
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if( !pDisp )
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return;
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//
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// initlialize the displacement base surface
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//
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CCoreDispSurface *pSurf = pBuilderDisp->GetSurface();
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pSurf->SetPointCount( 4 );
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pSurf->SetHandle( ndxFace );
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pSurf->SetContents( pDisp->contents );
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Vector pt[4];
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int ndxPt;
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for( ndxPt = 0; ndxPt < 4; ndxPt++ )
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{
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int eIndex = dsurfedges[pFace->firstedge+ndxPt];
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if( eIndex < 0 )
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{
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pSurf->SetPoint( ndxPt, dvertexes[dedges[-eIndex].v[1]].point );
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}
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else
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{
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pSurf->SetPoint( ndxPt, dvertexes[dedges[eIndex].v[0]].point );
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}
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VectorCopy( pSurf->GetPoint(ndxPt), pt[ndxPt] );
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}
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//
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// calculate the displacement surface normal
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//
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Vector vFaceNormal;
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pSurf->GetNormal( vFaceNormal );
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for( ndxPt = 0; ndxPt < 4; ndxPt++ )
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{
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pSurf->SetPointNormal( ndxPt, vFaceNormal );
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}
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// set the surface initial point info
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pSurf->SetPointStart( pDisp->startPosition );
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pSurf->FindSurfPointStartIndex();
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pSurf->AdjustSurfPointData();
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Vector vecTmp( texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[0][0],
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texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[0][1],
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texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[0][2] );
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int nLuxelsPerWorldUnit = static_cast<int>( 1.0f / VectorLength( vecTmp ) );
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Vector vecU( texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[0][0],
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texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[0][1],
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texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[0][2] );
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Vector vecV( texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[1][0],
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texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[1][1],
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texinfo[pFace->texinfo].lightmapVecsLuxelsPerWorldUnits[1][2] );
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pSurf->CalcLuxelCoords( nLuxelsPerWorldUnit, false, vecU, vecV );
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pBuilderDisp->SetNeighborData( pDisp->m_EdgeNeighbors, pDisp->m_CornerNeighbors );
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CDispVert *pVerts = &g_DispVerts[ pDisp->m_iDispVertStart ];
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CDispTri *pTris = &g_DispTris[pDisp->m_iDispTriStart];
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//
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// initialize the displacement data
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//
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pBuilderDisp->InitDispInfo(
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pDisp->power,
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pDisp->minTess,
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pDisp->smoothingAngle,
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pVerts,
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pTris );
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::UnserializeDisps( void )
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{
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// temporarily create the "builder" displacements
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CUtlVector<CCoreDispInfo*> builderDisps;
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for ( int iDisp = 0; iDisp < g_dispinfo.Count(); ++iDisp )
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{
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CCoreDispInfo *pDisp = new CCoreDispInfo;
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if ( !pDisp )
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{
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builderDisps.Purge();
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return;
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}
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int nIndex = builderDisps.AddToTail();
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pDisp->SetListIndex( nIndex );
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builderDisps[nIndex] = pDisp;
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}
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// Set them up as CDispUtilsHelpers.
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for ( int iDisp = 0; iDisp < g_dispinfo.Count(); ++iDisp )
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{
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builderDisps[iDisp]->SetDispUtilsHelperInfo( builderDisps.Base(), g_dispinfo.Count() );
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}
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//
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// find all faces with displacement data and initialize
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//
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for( int ndxFace = 0; ndxFace < numfaces; ndxFace++ )
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{
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dface_t *pFace = &g_pFaces[ndxFace];
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if( ValidDispFace( pFace ) )
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{
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DispBuilderInit( builderDisps[pFace->dispinfo], pFace, ndxFace );
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}
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}
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// generate the displacement surfaces
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for( int iDisp = 0; iDisp < g_dispinfo.Count(); ++iDisp )
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{
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builderDisps[iDisp]->Create();
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}
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// smooth edge normals
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SmoothNeighboringDispSurfNormals( builderDisps.Base(), g_dispinfo.Count() );
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//
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// create the displacement collision tree and add it to the bsp tree
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//
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CVRADDispColl *pDispTrees = new CVRADDispColl[g_dispinfo.Count()];
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if( !pDispTrees )
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return;
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m_DispTrees.AddMultipleToTail( g_dispinfo.Count() );
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for( int iDisp = 0; iDisp < g_dispinfo.Count(); iDisp++ )
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{
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pDispTrees[iDisp].Create( builderDisps[iDisp] );
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m_DispTrees[iDisp].m_pDispTree = &pDispTrees[iDisp];
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m_DispTrees[iDisp].m_Handle = TREEDATA_INVALID_HANDLE;
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InsertDispIntoTree( iDisp );
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}
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// free "builder" disps
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builderDisps.Purge();
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}
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//-----------------------------------------------------------------------------
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// Purpose: create a set of patches for each displacement surface to transfer
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// bounced light around with
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//-----------------------------------------------------------------------------
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void CVRadDispMgr::MakePatches( void )
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{
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// Collect stats - keep track of the total displacement surface area.
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float flTotalArea = 0.0f;
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// Create patches for all of the displacements.
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int nTreeCount = m_DispTrees.Size();
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for( int iTree = 0; iTree < nTreeCount; ++iTree )
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{
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// Get the current displacement collision tree.
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CVRADDispColl *pDispTree = m_DispTrees[iTree].m_pDispTree;
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if( !pDispTree )
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continue;
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flTotalArea += pDispTree->CreateParentPatches();
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}
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// Print stats.
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qprintf( "%i Displacements\n", nTreeCount );
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qprintf( "%i Square Feet [%.2f Square Inches]\n", ( int )( flTotalArea / 144.0f ), flTotalArea );
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::SubdividePatch( int iPatch )
|
|
{
|
|
// Get the current patch to subdivide.
|
|
CPatch *pPatch = &g_Patches[iPatch];
|
|
if ( !pPatch )
|
|
return;
|
|
|
|
// Create children patches.
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[pPatch->faceNumber].dispinfo];
|
|
CVRADDispColl *pTree = dispTree.m_pDispTree;
|
|
if( pTree )
|
|
{
|
|
pTree->CreateChildPatches( iPatch, 0 );
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::StartRayTest( DispTested_t &dispTested )
|
|
{
|
|
if( m_DispTrees.Size() > 0 )
|
|
{
|
|
if( dispTested.m_pTested == 0 )
|
|
{
|
|
dispTested.m_pTested = new int[m_DispTrees.Size()];
|
|
memset( dispTested.m_pTested, 0, m_DispTrees.Size() * sizeof( int ) );
|
|
dispTested.m_Enum = 0;
|
|
}
|
|
++dispTested.m_Enum;
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::ClipRayToDisp( DispTested_t &dispTested, Ray_t const &ray )
|
|
{
|
|
StartRayTest( dispTested );
|
|
|
|
EnumContext_t ctx;
|
|
ctx.m_pRay = &ray;
|
|
ctx.m_pDispTested = &dispTested;
|
|
|
|
// If it got through without a hit, it returns true
|
|
return !m_pBSPTreeData->EnumerateLeavesAlongRay( ray, &m_EnumDispRay, ( int )&ctx );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::ClipRayToDispInLeaf( DispTested_t &dispTested, Ray_t const &ray,
|
|
int ndxLeaf )
|
|
{
|
|
EnumContext_t ctx;
|
|
ctx.m_pRay = &ray;
|
|
ctx.m_pDispTested = &dispTested;
|
|
|
|
return !m_pBSPTreeData->EnumerateElementsInLeaf( ndxLeaf, &m_EnumDispRay, ( int )&ctx );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::ClipRayToDispInLeaf( DispTested_t &dispTested, Ray_t const &ray,
|
|
int ndxLeaf, float& dist, dface_t*& pFace, Vector2D& luxelCoord )
|
|
{
|
|
CBSPDispRayDistanceEnumerator rayTestEnum;
|
|
rayTestEnum.m_pRay = &ray;
|
|
rayTestEnum.m_pDispTested = &dispTested;
|
|
|
|
m_pBSPTreeData->EnumerateElementsInLeaf( ndxLeaf, &rayTestEnum, 0 );
|
|
|
|
dist = rayTestEnum.m_Distance;
|
|
pFace = rayTestEnum.m_pSurface;
|
|
if (pFace)
|
|
{
|
|
Vector2DCopy( rayTestEnum.m_LuxelCoord, luxelCoord );
|
|
}
|
|
}
|
|
|
|
void CVRadDispMgr::ClipRayToDispInLeaf( DispTested_t &dispTested, Ray_t const &ray,
|
|
int ndxLeaf, float& dist, Vector *pNormal )
|
|
{
|
|
CBSPDispRayDistanceEnumerator rayTestEnum;
|
|
rayTestEnum.m_pRay = &ray;
|
|
rayTestEnum.m_pDispTested = &dispTested;
|
|
|
|
m_pBSPTreeData->EnumerateElementsInLeaf( ndxLeaf, &rayTestEnum, 0 );
|
|
dist = rayTestEnum.m_Distance;
|
|
if ( rayTestEnum.m_pSurface )
|
|
{
|
|
*pNormal = rayTestEnum.m_Normal;
|
|
}
|
|
}
|
|
|
|
void CVRadDispMgr::AddPolysForRayTrace( void )
|
|
{
|
|
int nTreeCount = m_DispTrees.Size();
|
|
for( int iTree = 0; iTree < nTreeCount; ++iTree )
|
|
{
|
|
// Get the current displacement collision tree.
|
|
CVRADDispColl *pDispTree = m_DispTrees[iTree].m_pDispTree;
|
|
|
|
// Add the triangles of the tree to the RT environment
|
|
pDispTree->AddPolysForRayTrace();
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::GetDispSurfNormal( int ndxFace, Vector &pt, Vector &ptNormal,
|
|
bool bInside )
|
|
{
|
|
// get the displacement surface data
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
|
|
// find the parameterized displacement indices
|
|
Vector2D uv;
|
|
pDispTree->BaseFacePlaneToDispUV( pt, uv );
|
|
|
|
if( bInside )
|
|
{
|
|
if( uv[0] < 0.0f || uv[0] > 1.0f ) { Msg( "Disp UV (%f) outside bounds!\n", uv[0] ); }
|
|
if( uv[1] < 0.0f || uv[1] > 1.0f ) { Msg( "Disp UV (%f) outside bounds!\n", uv[1] ); }
|
|
}
|
|
|
|
if( uv[0] < 0.0f ) { uv[0] = 0.0f; }
|
|
if( uv[0] > 1.0f ) { uv[0] = 1.0f; }
|
|
if( uv[1] < 0.0f ) { uv[1] = 0.0f; }
|
|
if( uv[1] > 1.0f ) { uv[1] = 1.0f; }
|
|
|
|
// get the normal at "pt"
|
|
pDispTree->DispUVToSurfNormal( uv, ptNormal );
|
|
|
|
// get the new "pt"
|
|
pDispTree->DispUVToSurfPoint( uv, pt, 1.0f );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::GetDispSurf( int ndxFace, CVRADDispColl **ppDispTree )
|
|
{
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
*ppDispTree = dispTree.m_pDispTree;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::DispRay_EnumerateLeaf( int ndxLeaf, int context )
|
|
{
|
|
return m_pBSPTreeData->EnumerateElementsInLeaf( ndxLeaf, &m_EnumDispRay, context );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::DispRay_EnumerateElement( int userId, int context )
|
|
{
|
|
DispCollTree_t &dispTree = m_DispTrees[userId];
|
|
EnumContext_t *pCtx = ( EnumContext_t* )context;
|
|
|
|
// don't test twice (check tested value)
|
|
if( pCtx->m_pDispTested->m_pTested[userId] == pCtx->m_pDispTested->m_Enum )
|
|
return true;
|
|
|
|
// set the tested value
|
|
pCtx->m_pDispTested->m_pTested[userId] = pCtx->m_pDispTested->m_Enum;
|
|
|
|
// false mean stop iterating -- return false if we hit! (NOTE: opposite return
|
|
// result of the collision tree's ray test, thus the !)
|
|
CBaseTrace trace;
|
|
trace.fraction = 1.0f;
|
|
return ( !dispTree.m_pDispTree->AABBTree_Ray( *pCtx->m_pRay, pCtx->m_pRay->InvDelta(), &trace, true ) );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
|
|
bool CVRadDispMgr::DispRayDistance_EnumerateElement( int userId, CBSPDispRayDistanceEnumerator* pCtx )
|
|
{
|
|
DispCollTree_t &dispTree = m_DispTrees[userId];
|
|
|
|
// don't test twice (check tested value)
|
|
if( pCtx->m_pDispTested->m_pTested[userId] == pCtx->m_pDispTested->m_Enum )
|
|
return true;
|
|
|
|
// set the tested value
|
|
pCtx->m_pDispTested->m_pTested[userId] = pCtx->m_pDispTested->m_Enum;
|
|
|
|
// Test the ray, if it's closer than previous tests, use it!
|
|
RayDispOutput_t output;
|
|
output.ndxVerts[0] = -1;
|
|
output.ndxVerts[1] = -1;
|
|
output.ndxVerts[2] = -1;
|
|
output.ndxVerts[3] = -1;
|
|
output.u = -1.0f;
|
|
output.v = -1.0f;
|
|
output.dist = FLT_MAX;
|
|
|
|
if (dispTree.m_pDispTree->AABBTree_Ray( *pCtx->m_pRay, output ))
|
|
{
|
|
if (output.dist < pCtx->m_Distance)
|
|
{
|
|
pCtx->m_Distance = output.dist;
|
|
pCtx->m_pSurface = &g_pFaces[dispTree.m_pDispTree->GetParentIndex()];
|
|
|
|
// Get the luxel coordinate
|
|
ComputePointFromBarycentric(
|
|
dispTree.m_pDispTree->GetLuxelCoord(output.ndxVerts[0]),
|
|
dispTree.m_pDispTree->GetLuxelCoord(output.ndxVerts[1]),
|
|
dispTree.m_pDispTree->GetLuxelCoord(output.ndxVerts[2]),
|
|
output.u, output.v, pCtx->m_LuxelCoord );
|
|
|
|
Vector v0,v1,v2;
|
|
dispTree.m_pDispTree->GetVert( output.ndxVerts[0], v0 );
|
|
dispTree.m_pDispTree->GetVert( output.ndxVerts[1], v1 );
|
|
dispTree.m_pDispTree->GetVert( output.ndxVerts[2], v2 );
|
|
Vector e0 = v1-v0;
|
|
Vector e1 = v2-v0;
|
|
pCtx->m_Normal = CrossProduct( e0, e1 );
|
|
VectorNormalize(pCtx->m_Normal);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Test a ray against a particular dispinfo
|
|
//-----------------------------------------------------------------------------
|
|
|
|
/*
|
|
float CVRadDispMgr::ClipRayToDisp( Ray_t const &ray, int dispinfo )
|
|
{
|
|
assert( m_DispTrees.IsValidIndex(dispinfo) );
|
|
|
|
RayDispOutput_t output;
|
|
if (!m_DispTrees[dispinfo].m_pDispTree->AABBTree_Ray( ray, output ))
|
|
return 1.0f;
|
|
return output.dist;
|
|
}
|
|
*/
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::DispFaceList_EnumerateLeaf( int ndxLeaf, int context )
|
|
{
|
|
//
|
|
// add the faces found in this leaf to the face list
|
|
//
|
|
dleaf_t *pLeaf = &dleafs[ndxLeaf];
|
|
for( int ndxFace = 0; ndxFace < pLeaf->numleaffaces; ndxFace++ )
|
|
{
|
|
// get the current face index
|
|
int ndxLeafFace = pLeaf->firstleafface + ndxFace;
|
|
|
|
// check to see if the face already lives in the list
|
|
int ndx;
|
|
int size = m_EnumDispFaceList.m_FaceList.Size();
|
|
for( ndx = 0; ndx < size; ndx++ )
|
|
{
|
|
if( m_EnumDispFaceList.m_FaceList[ndx] == ndxLeafFace )
|
|
break;
|
|
}
|
|
|
|
if( ndx == size )
|
|
{
|
|
int ndxList = m_EnumDispFaceList.m_FaceList.AddToTail();
|
|
m_EnumDispFaceList.m_FaceList[ndxList] = ndxLeafFace;
|
|
}
|
|
}
|
|
|
|
return m_pBSPTreeData->EnumerateElementsInLeaf( ndxLeaf, &m_EnumDispFaceList, context );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::DispFaceList_EnumerateElement( int userId, int context )
|
|
{
|
|
DispCollTree_t &dispTree = m_DispTrees[userId];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
if( !pDispTree )
|
|
return false;
|
|
|
|
// check to see if the displacement already lives in the list
|
|
int ndx;
|
|
int size = m_EnumDispFaceList.m_DispList.Size();
|
|
for( ndx = 0; ndx < size; ndx++ )
|
|
{
|
|
if( m_EnumDispFaceList.m_DispList[ndx] == pDispTree )
|
|
break;
|
|
}
|
|
|
|
if( ndx == size )
|
|
{
|
|
int ndxList = m_EnumDispFaceList.m_DispList.AddToTail();
|
|
m_EnumDispFaceList.m_DispList[ndxList] = pDispTree;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
inline void GetSampleLight( facelight_t *pFaceLight, int ndxStyle, bool bBumped,
|
|
int ndxSample, LightingValue_t *pSampleLight )
|
|
{
|
|
// SampleLight[0].Init( 20.0f, 10.0f, 10.0f );
|
|
// return;
|
|
|
|
// get sample from bumped lighting data
|
|
if( bBumped )
|
|
{
|
|
for( int ndxBump = 0; ndxBump < ( NUM_BUMP_VECTS+1 ); ndxBump++ )
|
|
{
|
|
pSampleLight[ndxBump] = pFaceLight->light[ndxStyle][ndxBump][ndxSample];
|
|
}
|
|
}
|
|
// just a generally lit surface
|
|
else
|
|
{
|
|
pSampleLight[0] = pFaceLight->light[ndxStyle][0][ndxSample];
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void AddSampleLightToRadial( Vector const &samplePos, Vector const &sampleNormal,
|
|
LightingValue_t *pSampleLight, float sampleRadius2,
|
|
Vector const &luxelPos, Vector const &luxelNormal,
|
|
radial_t *pRadial, int ndxRadial, bool bBumped,
|
|
bool bNeighborBumped )
|
|
{
|
|
// check normals to see if sample contributes any light at all
|
|
float angle = sampleNormal.Dot( luxelNormal );
|
|
if ( angle < 0.15f )
|
|
return;
|
|
|
|
// calculate the light vector
|
|
Vector vSegment = samplePos - luxelPos;
|
|
|
|
// get the distance to the light
|
|
float dist = vSegment.Length();
|
|
float dist2 = dist * dist;
|
|
|
|
// Check to see if the light is within the influence.
|
|
float influence = 1.0f - ( dist2 / ( sampleRadius2 ) );
|
|
if( influence <= 0.0f )
|
|
return;
|
|
|
|
influence *= angle;
|
|
|
|
if( bBumped )
|
|
{
|
|
if( bNeighborBumped )
|
|
{
|
|
for( int ndxBump = 0; ndxBump < ( NUM_BUMP_VECTS+1 ); ndxBump++ )
|
|
{
|
|
pRadial->light[ndxBump][ndxRadial].AddWeighted( pSampleLight[ndxBump], influence );
|
|
}
|
|
pRadial->weight[ndxRadial] += influence;
|
|
}
|
|
else
|
|
{
|
|
influence *= 0.05f;
|
|
for( int ndxBump = 0; ndxBump < ( NUM_BUMP_VECTS+1 ); ndxBump++ )
|
|
{
|
|
pRadial->light[ndxBump][ndxRadial].AddWeighted( pSampleLight[0], influence );
|
|
}
|
|
pRadial->weight[ndxRadial] += influence;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pRadial->light[0][ndxRadial].AddWeighted( pSampleLight[0], influence );
|
|
pRadial->weight[ndxRadial] += influence;
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::IsNeighbor( int iFace, int iNeighborFace )
|
|
{
|
|
if ( iFace == iNeighborFace )
|
|
return true;
|
|
|
|
faceneighbor_t *pFaceNeighbor = &faceneighbor[iFace];
|
|
for ( int iNeighbor = 0; iNeighbor < pFaceNeighbor->numneighbors; iNeighbor++ )
|
|
{
|
|
if ( pFaceNeighbor->neighbor[iNeighbor] == iNeighborFace )
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::RadialLuxelAddSamples( int ndxFace, Vector const &luxelPt, Vector const &luxelNormal, float radius,
|
|
radial_t *pRadial, int ndxRadial, bool bBump, int lightStyle )
|
|
{
|
|
// calculate one over the voxel size
|
|
float ooVoxelSize = 1.0f / SAMPLEHASH_VOXEL_SIZE;
|
|
|
|
//
|
|
// find voxel info
|
|
//
|
|
int voxelMin[3], voxelMax[3];
|
|
for( int axis = 0; axis < 3; axis++ )
|
|
{
|
|
voxelMin[axis] = ( int )( ( luxelPt[axis] - radius ) * ooVoxelSize );
|
|
voxelMax[axis] = ( int )( ( luxelPt[axis] + radius ) * ooVoxelSize ) + 1;
|
|
}
|
|
|
|
SampleData_t sampleData;
|
|
for( int ndxZ = voxelMin[2]; ndxZ < voxelMax[2] + 1; ndxZ++ )
|
|
{
|
|
for( int ndxY = voxelMin[1]; ndxY < voxelMax[1] + 1; ndxY++ )
|
|
{
|
|
for( int ndxX = voxelMin[0]; ndxX < voxelMax[0] + 1; ndxX++ )
|
|
{
|
|
sampleData.x = ndxX * 100;
|
|
sampleData.y = ndxY * 10;
|
|
sampleData.z = ndxZ;
|
|
|
|
UtlHashHandle_t handle = g_SampleHashTable.Find( sampleData );
|
|
if( handle != g_SampleHashTable.InvalidHandle() )
|
|
{
|
|
SampleData_t *pSampleData = &g_SampleHashTable.Element( handle );
|
|
int count = pSampleData->m_Samples.Count();
|
|
for( int ndx = 0; ndx < count; ndx++ )
|
|
{
|
|
SampleHandle_t sampleHandle = pSampleData->m_Samples.Element( ndx );
|
|
int ndxSample = ( sampleHandle & 0x0000ffff );
|
|
int ndxFaceLight = ( ( sampleHandle >> 16 ) & 0x0000ffff );
|
|
|
|
facelight_t *pFaceLight = &facelight[ndxFaceLight];
|
|
if( pFaceLight && IsNeighbor( ndxFace, ndxFaceLight ) )
|
|
{
|
|
//
|
|
// check for similar lightstyles
|
|
//
|
|
dface_t *pFace = &g_pFaces[ndxFaceLight];
|
|
if( pFace )
|
|
{
|
|
int ndxNeighborStyle = -1;
|
|
for( int ndxLightStyle = 0; ndxLightStyle < MAXLIGHTMAPS; ndxLightStyle++ )
|
|
{
|
|
if( pFace->styles[ndxLightStyle] == lightStyle )
|
|
{
|
|
ndxNeighborStyle = ndxLightStyle;
|
|
break;
|
|
}
|
|
}
|
|
if( ndxNeighborStyle == -1 )
|
|
continue;
|
|
|
|
// is this surface bumped???
|
|
bool bNeighborBump = texinfo[pFace->texinfo].flags & SURF_BUMPLIGHT ? true : false;
|
|
|
|
LightingValue_t sampleLight[NUM_BUMP_VECTS+1];
|
|
GetSampleLight( pFaceLight, ndxNeighborStyle, bNeighborBump, ndxSample, sampleLight );
|
|
AddSampleLightToRadial( pFaceLight->sample[ndxSample].pos, pFaceLight->sample[ndxSample].normal,
|
|
sampleLight, radius*radius, luxelPt, luxelNormal, pRadial, ndxRadial,
|
|
bBump, bNeighborBump );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::RadialLuxelBuild( CVRADDispColl *pDispTree, radial_t *pRadial,
|
|
int ndxStyle, bool bBump )
|
|
{
|
|
//
|
|
// get data lighting data
|
|
//
|
|
int ndxFace = pDispTree->GetParentIndex();
|
|
|
|
dface_t *pFace = &g_pFaces[ndxFace];
|
|
facelight_t *pFaceLight = &facelight[ndxFace];
|
|
|
|
// get the influence radius
|
|
float radius2 = pDispTree->GetSampleRadius2();
|
|
float radius = ( float )sqrt( radius2 );
|
|
|
|
int radialSize = pRadial->w * pRadial->h;
|
|
for( int ndxRadial = 0; ndxRadial < radialSize; ndxRadial++ )
|
|
{
|
|
RadialLuxelAddSamples( ndxFace, pFaceLight->luxel[ndxRadial], pFaceLight->luxelNormals[ndxRadial],
|
|
radius, pRadial, ndxRadial, bBump, pFace->styles[ndxStyle] );
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
radial_t *CVRadDispMgr::BuildLuxelRadial( int ndxFace, int ndxStyle, bool bBump )
|
|
{
|
|
// allocate the radial
|
|
radial_t *pRadial = AllocateRadial( ndxFace );
|
|
if( !pRadial )
|
|
return NULL;
|
|
|
|
//
|
|
// step 1: get the displacement surface to be lit
|
|
//
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
if( !pDispTree )
|
|
return NULL;
|
|
|
|
// step 2: build radial luxels
|
|
RadialLuxelBuild( pDispTree, pRadial, ndxStyle, bBump );
|
|
|
|
// step 3: return the built radial
|
|
return pRadial;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::SampleRadial( int ndxFace, radial_t *pRadial, Vector const &vPos, int ndxLxl,
|
|
LightingValue_t *pLightSample, int sampleCount, bool bPatch )
|
|
{
|
|
bool bGoodSample = true;
|
|
for ( int count = 0; count < sampleCount; count++ )
|
|
{
|
|
pLightSample[count].Zero();
|
|
|
|
if ( pRadial->weight[ndxLxl] > 0.0f )
|
|
{
|
|
pLightSample[count].AddWeighted( pRadial->light[count][ndxLxl], ( 1.0f / pRadial->weight[ndxLxl] ) );
|
|
}
|
|
else
|
|
{
|
|
// error, luxel has no samples (not for patches)
|
|
if ( !bPatch )
|
|
{
|
|
// Yes, 2550 is correct!
|
|
// pLightSample[count].Init( 2550.0f, 0.0f, 2550.0f );
|
|
if( count == 0 )
|
|
bGoodSample = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return bGoodSample;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void GetPatchLight( CPatch *pPatch, bool bBump, Vector *pPatchLight )
|
|
{
|
|
VectorCopy( pPatch->totallight.light[0], pPatchLight[0] );
|
|
|
|
if( bBump )
|
|
{
|
|
for( int ndxBump = 1; ndxBump < ( NUM_BUMP_VECTS + 1 ); ndxBump++ )
|
|
{
|
|
VectorCopy( pPatch->totallight.light[ndxBump], pPatchLight[ndxBump] );
|
|
}
|
|
}
|
|
}
|
|
|
|
extern void GetBumpNormals( const float* sVect, const float* tVect, const Vector& flatNormal,
|
|
const Vector& phongNormal, Vector bumpNormals[NUM_BUMP_VECTS] );
|
|
extern void PreGetBumpNormalsForDisp( texinfo_t *pTexinfo, Vector &vecU, Vector &vecV, Vector &vecNormal );
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void AddPatchLightToRadial( Vector const &patchOrigin, Vector const &patchNormal,
|
|
Vector *pPatchLight, float patchRadius2,
|
|
Vector const &luxelPos, Vector const &luxelNormal,
|
|
radial_t *pRadial, int ndxRadial, bool bBump,
|
|
bool bNeighborBump )
|
|
{
|
|
// calculate the light vector
|
|
Vector vSegment = patchOrigin - luxelPos;
|
|
|
|
// get the distance to the light
|
|
float dist = vSegment.Length();
|
|
float dist2 = dist * dist;
|
|
|
|
// Check to see if the light is within the sample influence.
|
|
float influence = 1.0f - ( dist2 / ( patchRadius2 ) );
|
|
if ( influence <= 0.0f )
|
|
return;
|
|
|
|
if( bBump )
|
|
{
|
|
Vector normals[NUM_BUMP_VECTS+1];
|
|
normals[0] = luxelNormal;
|
|
texinfo_t *pTexinfo = &texinfo[g_pFaces[pRadial->facenum].texinfo];
|
|
Vector vecTexU, vecTexV;
|
|
PreGetBumpNormalsForDisp( pTexinfo, vecTexU, vecTexV, normals[0] );
|
|
GetBumpNormals( vecTexU, vecTexV, normals[0], normals[0], &normals[1] );
|
|
|
|
if( bNeighborBump )
|
|
{
|
|
float flScale = patchNormal.Dot( normals[0] );
|
|
flScale = max( 0.0f, flScale );
|
|
float flBumpInfluence = influence * flScale;
|
|
|
|
for( int ndxBump = 0; ndxBump < ( NUM_BUMP_VECTS+1 ); ndxBump++ )
|
|
{
|
|
pRadial->light[ndxBump][ndxRadial].AddWeighted( pPatchLight[ndxBump], flBumpInfluence );
|
|
}
|
|
|
|
pRadial->weight[ndxRadial] += flBumpInfluence;
|
|
}
|
|
else
|
|
{
|
|
float flScale = patchNormal.Dot( normals[0] );
|
|
flScale = max( 0.0f, flScale );
|
|
float flBumpInfluence = influence * flScale * 0.05f;
|
|
|
|
for( int ndxBump = 0; ndxBump < ( NUM_BUMP_VECTS+1 ); ndxBump++ )
|
|
{
|
|
pRadial->light[ndxBump][ndxRadial].AddWeighted( pPatchLight[0], flBumpInfluence );
|
|
}
|
|
|
|
pRadial->weight[ndxRadial] += flBumpInfluence;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
float flScale = patchNormal.Dot( luxelNormal );
|
|
flScale = max( 0.0f, flScale );
|
|
influence *= flScale;
|
|
pRadial->light[0][ndxRadial].AddWeighted( pPatchLight[0], influence );
|
|
|
|
// add the weight value
|
|
pRadial->weight[ndxRadial] += influence;
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::RadialLuxelAddPatch( int ndxFace, Vector const &luxelPt,
|
|
Vector const &luxelNormal, float radius,
|
|
radial_t *pRadial, int ndxRadial, bool bBump,
|
|
CUtlVector<CPatch*> &interestingPatches )
|
|
{
|
|
#ifdef SAMPLEHASH_QUERY_ONCE
|
|
for ( int i=0; i < interestingPatches.Count(); i++ )
|
|
{
|
|
CPatch *pPatch = interestingPatches[i];
|
|
bool bNeighborBump = texinfo[g_pFaces[pPatch->faceNumber].texinfo].flags & SURF_BUMPLIGHT ? true : false;
|
|
|
|
Vector patchLight[NUM_BUMP_VECTS+1];
|
|
GetPatchLight( pPatch, bBump, patchLight );
|
|
AddPatchLightToRadial( pPatch->origin, pPatch->normal, patchLight, radius*radius,
|
|
luxelPt, luxelNormal, pRadial, ndxRadial, bBump, bNeighborBump );
|
|
}
|
|
#else
|
|
// calculate one over the voxel size
|
|
float ooVoxelSize = 1.0f / SAMPLEHASH_VOXEL_SIZE;
|
|
|
|
//
|
|
// find voxel info
|
|
//
|
|
int voxelMin[3], voxelMax[3];
|
|
for ( int axis = 0; axis < 3; axis++ )
|
|
{
|
|
voxelMin[axis] = ( int )( ( luxelPt[axis] - radius ) * ooVoxelSize );
|
|
voxelMax[axis] = ( int )( ( luxelPt[axis] + radius ) * ooVoxelSize ) + 1;
|
|
}
|
|
|
|
unsigned short curIterationKey = IncrementPatchIterationKey();
|
|
PatchSampleData_t patchData;
|
|
for ( int ndxZ = voxelMin[2]; ndxZ < voxelMax[2] + 1; ndxZ++ )
|
|
{
|
|
for ( int ndxY = voxelMin[1]; ndxY < voxelMax[1] + 1; ndxY++ )
|
|
{
|
|
for ( int ndxX = voxelMin[0]; ndxX < voxelMax[0] + 1; ndxX++ )
|
|
{
|
|
patchData.x = ndxX * 100;
|
|
patchData.y = ndxY * 10;
|
|
patchData.z = ndxZ;
|
|
|
|
UtlHashHandle_t handle = g_PatchSampleHashTable.Find( patchData );
|
|
if ( handle != g_PatchSampleHashTable.InvalidHandle() )
|
|
{
|
|
PatchSampleData_t *pPatchData = &g_PatchSampleHashTable.Element( handle );
|
|
int count = pPatchData->m_ndxPatches.Count();
|
|
for ( int ndx = 0; ndx < count; ndx++ )
|
|
{
|
|
int ndxPatch = pPatchData->m_ndxPatches.Element( ndx );
|
|
CPatch *pPatch = &g_Patches.Element( ndxPatch );
|
|
if ( pPatch && pPatch->m_IterationKey != curIterationKey )
|
|
{
|
|
pPatch->m_IterationKey = curIterationKey;
|
|
|
|
if ( IsNeighbor( ndxFace, pPatch->faceNumber ) )
|
|
{
|
|
bool bNeighborBump = texinfo[g_pFaces[pPatch->faceNumber].texinfo].flags & SURF_BUMPLIGHT ? true : false;
|
|
|
|
Vector patchLight[NUM_BUMP_VECTS+1];
|
|
GetPatchLight( pPatch, bBump, patchLight );
|
|
AddPatchLightToRadial( pPatch->origin, pPatch->normal, patchLight, radius*radius,
|
|
luxelPt, luxelNormal, pRadial, ndxRadial, bBump, bNeighborBump );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
void CVRadDispMgr::GetInterestingPatchesForLuxels(
|
|
int ndxFace,
|
|
CUtlVector<CPatch*> &interestingPatches,
|
|
float patchSampleRadius )
|
|
{
|
|
facelight_t *pFaceLight = &facelight[ndxFace];
|
|
|
|
// Get the max bounds of all voxels that these luxels touch.
|
|
Vector vLuxelMin( FLT_MAX, FLT_MAX, FLT_MAX );
|
|
Vector vLuxelMax( -FLT_MAX, -FLT_MAX, -FLT_MAX );
|
|
for ( int i=0; i < pFaceLight->numluxels; i++ )
|
|
{
|
|
VectorMin( pFaceLight->luxel[i], vLuxelMin, vLuxelMin );
|
|
VectorMax( pFaceLight->luxel[i], vLuxelMax, vLuxelMax );
|
|
}
|
|
|
|
int allVoxelMin[3], allVoxelMax[3];
|
|
for ( int axis = 0; axis < 3; axis++ )
|
|
{
|
|
allVoxelMin[axis] = ( int )( ( vLuxelMin[axis] - patchSampleRadius ) / SAMPLEHASH_VOXEL_SIZE );
|
|
allVoxelMax[axis] = ( int )( ( vLuxelMax[axis] + patchSampleRadius ) / SAMPLEHASH_VOXEL_SIZE ) + 1;
|
|
}
|
|
int allVoxelSize[3] = { allVoxelMax[0] - allVoxelMin[0], allVoxelMax[1] - allVoxelMin[1], allVoxelMax[2] - allVoxelMin[2] };
|
|
|
|
|
|
// Now figure out exactly which voxels these luxels touch.
|
|
CUtlVector<unsigned char> voxelBits;
|
|
voxelBits.SetSize( ((allVoxelSize[0] * allVoxelSize[1] * allVoxelSize[2]) + 7) / 8 );
|
|
memset( voxelBits.Base(), 0, voxelBits.Count() );
|
|
|
|
for ( int i=0; i < pFaceLight->numluxels; i++ )
|
|
{
|
|
int voxelMin[3], voxelMax[3];
|
|
for ( int axis=0; axis < 3; axis++ )
|
|
{
|
|
voxelMin[axis] = ( int )( ( pFaceLight->luxel[i][axis] - patchSampleRadius ) / SAMPLEHASH_VOXEL_SIZE );
|
|
voxelMax[axis] = ( int )( ( pFaceLight->luxel[i][axis] + patchSampleRadius ) / SAMPLEHASH_VOXEL_SIZE ) + 1;
|
|
}
|
|
|
|
for ( int x=voxelMin[0]; x < voxelMax[0]; x++ )
|
|
{
|
|
for ( int y=voxelMin[1]; y < voxelMax[1]; y++ )
|
|
{
|
|
for ( int z=voxelMin[2]; z < voxelMax[2]; z++ )
|
|
{
|
|
int iBit = (z - allVoxelMin[2])*(allVoxelSize[0]*allVoxelSize[1]) +
|
|
(y-allVoxelMin[1])*allVoxelSize[0] +
|
|
(x-allVoxelMin[0]);
|
|
voxelBits[iBit>>3] |= (1 << (iBit & 7));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Now get the list of patches that touch those voxels.
|
|
unsigned short curIterationKey = IncrementPatchIterationKey();
|
|
|
|
for ( int x=0; x < allVoxelSize[0]; x++ )
|
|
{
|
|
for ( int y=0; y < allVoxelSize[1]; y++ )
|
|
{
|
|
for ( int z=0; z < allVoxelSize[2]; z++ )
|
|
{
|
|
// Make sure this voxel has any luxels that care about it.
|
|
int iBit = z*(allVoxelSize[0]*allVoxelSize[1]) + y*allVoxelSize[0] + x;
|
|
unsigned char val = voxelBits[iBit>>3] & (1 << (iBit & 7));
|
|
if ( !val )
|
|
continue;
|
|
|
|
PatchSampleData_t patchData;
|
|
patchData.x = (x + allVoxelMin[0]) * 100;
|
|
patchData.y = (y + allVoxelMin[1]) * 10;
|
|
patchData.z = (z + allVoxelMin[2]);
|
|
|
|
UtlHashHandle_t handle = g_PatchSampleHashTable.Find( patchData );
|
|
if ( handle != g_PatchSampleHashTable.InvalidHandle() )
|
|
{
|
|
PatchSampleData_t *pPatchData = &g_PatchSampleHashTable.Element( handle );
|
|
|
|
// For all patches that touch this hash table element..
|
|
for ( int ndx = 0; ndx < pPatchData->m_ndxPatches.Count(); ndx++ )
|
|
{
|
|
int ndxPatch = pPatchData->m_ndxPatches.Element( ndx );
|
|
CPatch *pPatch = &g_Patches.Element( ndxPatch );
|
|
|
|
// If we haven't touched the patch already and it's a valid neighbor, then we want to use it.
|
|
if ( pPatch && pPatch->m_IterationKey != curIterationKey )
|
|
{
|
|
pPatch->m_IterationKey = curIterationKey;
|
|
|
|
if ( IsNeighbor( ndxFace, pPatch->faceNumber ) )
|
|
{
|
|
interestingPatches.AddToTail( pPatch );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::RadialPatchBuild( CVRADDispColl *pDispTree, radial_t *pRadial,
|
|
bool bBump )
|
|
{
|
|
//
|
|
// get data lighting data
|
|
//
|
|
int ndxFace = pDispTree->GetParentIndex();
|
|
facelight_t *pFaceLight = &facelight[ndxFace];
|
|
|
|
// get the influence radius
|
|
float radius2 = pDispTree->GetPatchSampleRadius2();
|
|
float radius = ( float )sqrt( radius2 );
|
|
|
|
CUtlVector<CPatch*> interestingPatches;
|
|
#ifdef SAMPLEHASH_QUERY_ONCE
|
|
GetInterestingPatchesForLuxels( ndxFace, interestingPatches, radius );
|
|
#endif
|
|
|
|
int radialSize = pRadial->w * pRadial->h;
|
|
for( int ndxRadial = 0; ndxRadial < radialSize; ndxRadial++ )
|
|
{
|
|
RadialLuxelAddPatch(
|
|
ndxFace,
|
|
pFaceLight->luxel[ndxRadial],
|
|
pFaceLight->luxelNormals[ndxRadial],
|
|
radius,
|
|
pRadial,
|
|
ndxRadial,
|
|
bBump,
|
|
interestingPatches );
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
radial_t *CVRadDispMgr::BuildPatchRadial( int ndxFace, bool bBump )
|
|
{
|
|
// allocate the radial
|
|
radial_t *pRadial = AllocateRadial( ndxFace );
|
|
if( !pRadial )
|
|
return NULL;
|
|
|
|
//
|
|
// step 1: get the displacement surface to be lit
|
|
//
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
if( !pDispTree )
|
|
return NULL;
|
|
|
|
// step 2: build radial of patch light
|
|
RadialPatchBuild( pDispTree, pRadial, bBump );
|
|
|
|
// step 3: return the built radial
|
|
return pRadial;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool SampleInSolid( sample_t *pSample )
|
|
{
|
|
int ndxLeaf = PointLeafnum( pSample->pos );
|
|
return ( dleafs[ndxLeaf].contents == CONTENTS_SOLID );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::InsertSamplesDataIntoHashTable( void )
|
|
{
|
|
int totalSamples = 0;
|
|
#if 0
|
|
int totalSamplesInSolid = 0;
|
|
#endif
|
|
|
|
for( int ndxFace = 0; ndxFace < numfaces; ndxFace++ )
|
|
{
|
|
dface_t *pFace = &g_pFaces[ndxFace];
|
|
facelight_t *pFaceLight = &facelight[ndxFace];
|
|
if( !pFace || !pFaceLight )
|
|
continue;
|
|
|
|
if( texinfo[pFace->texinfo].flags & TEX_SPECIAL )
|
|
continue;
|
|
|
|
#if 0
|
|
bool bDisp = ( pFace->dispinfo != -1 );
|
|
#endif
|
|
//
|
|
// for each sample
|
|
//
|
|
for( int ndxSample = 0; ndxSample < pFaceLight->numsamples; ndxSample++ )
|
|
{
|
|
sample_t *pSample = &pFaceLight->sample[ndxSample];
|
|
if( pSample )
|
|
{
|
|
#if 0
|
|
if( bDisp )
|
|
{
|
|
// test sample to see if the displacement samples resides in solid
|
|
if( SampleInSolid( pSample ) )
|
|
{
|
|
totalSamplesInSolid++;
|
|
continue;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// create the sample handle
|
|
SampleHandle_t sampleHandle = ndxSample;
|
|
sampleHandle |= ( ndxFace << 16 );
|
|
|
|
SampleData_AddSample( pSample, sampleHandle );
|
|
}
|
|
|
|
}
|
|
|
|
totalSamples += pFaceLight->numsamples;
|
|
}
|
|
|
|
#if 0
|
|
// not implemented yet!!!
|
|
Msg( "%d samples in solid\n", totalSamplesInSolid );
|
|
#endif
|
|
|
|
// log the distribution
|
|
SampleData_Log();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::InsertPatchSampleDataIntoHashTable( void )
|
|
{
|
|
// don't insert patch samples if we are not bouncing light
|
|
if( numbounce <= 0 )
|
|
return;
|
|
|
|
int totalPatchSamples = 0;
|
|
|
|
for( int ndxFace = 0; ndxFace < numfaces; ndxFace++ )
|
|
{
|
|
dface_t *pFace = &g_pFaces[ndxFace];
|
|
facelight_t *pFaceLight = &facelight[ndxFace];
|
|
if( !pFace || !pFaceLight )
|
|
continue;
|
|
|
|
if( texinfo[pFace->texinfo].flags & TEX_SPECIAL )
|
|
continue;
|
|
|
|
//
|
|
// for each patch
|
|
//
|
|
CPatch *pNextPatch = NULL;
|
|
if( g_FacePatches.Element( ndxFace ) != g_FacePatches.InvalidIndex() )
|
|
{
|
|
for( CPatch *pPatch = &g_Patches.Element( g_FacePatches.Element( ndxFace ) ); pPatch; pPatch = pNextPatch )
|
|
{
|
|
// next patch
|
|
pNextPatch = NULL;
|
|
if( pPatch->ndxNext != g_Patches.InvalidIndex() )
|
|
{
|
|
pNextPatch = &g_Patches.Element( pPatch->ndxNext );
|
|
}
|
|
|
|
// skip patches with children
|
|
if( pPatch->child1 != g_Patches.InvalidIndex() )
|
|
continue;
|
|
|
|
int ndxPatch = pPatch - g_Patches.Base();
|
|
PatchSampleData_AddSample( pPatch, ndxPatch );
|
|
|
|
totalPatchSamples++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::StartTimer( const char *name )
|
|
{
|
|
Msg( name );
|
|
m_Timer.Start();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
void CVRadDispMgr::EndTimer( void )
|
|
{
|
|
m_Timer.End();
|
|
CCycleCount duration = m_Timer.GetDuration();
|
|
double seconds = duration.GetSeconds();
|
|
|
|
Msg( "Done<%1.4lf sec>\n", seconds );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::BuildDispSamples( lightinfo_t *pLightInfo, facelight_t *pFaceLight, int ndxFace )
|
|
{
|
|
// get the tree assosciated with the face
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
if( !pDispTree )
|
|
return false;
|
|
|
|
// lightmap size
|
|
int width = pLightInfo->face->m_LightmapTextureSizeInLuxels[0]+1;
|
|
int height = pLightInfo->face->m_LightmapTextureSizeInLuxels[1]+1;
|
|
|
|
// calculate the steps in uv space
|
|
float stepU = 1.0f / ( float )width;
|
|
float stepV = 1.0f / ( float )height;
|
|
float halfStepU = stepU * 0.5f;
|
|
float halfStepV = stepV * 0.5f;
|
|
|
|
//
|
|
// build the winding points (used to generate world space winding and
|
|
// calculate the area of the "sample")
|
|
//
|
|
int ndxU, ndxV;
|
|
|
|
CUtlVector<sample_t> samples;
|
|
samples.SetCount( SINGLEMAP );
|
|
sample_t *pSamples = samples.Base();
|
|
|
|
CUtlVector<Vector> worldPoints;
|
|
worldPoints.SetCount( SINGLEMAP );
|
|
Vector *pWorldPoints = worldPoints.Base();
|
|
|
|
for( ndxV = 0; ndxV < ( height + 1 ); ndxV++ )
|
|
{
|
|
for( ndxU = 0; ndxU < ( width + 1 ); ndxU++ )
|
|
{
|
|
int ndx = ( ndxV * ( width + 1 ) ) + ndxU;
|
|
|
|
Vector2D uv( ndxU * stepU, ndxV * stepV );
|
|
pDispTree->DispUVToSurfPoint( uv, pWorldPoints[ndx], 0.0f );
|
|
}
|
|
}
|
|
|
|
for( ndxV = 0; ndxV < height; ndxV++ )
|
|
{
|
|
for( ndxU = 0; ndxU < width; ndxU++ )
|
|
{
|
|
// build the winding
|
|
winding_t *pWinding = AllocWinding( 4 );
|
|
if( pWinding )
|
|
{
|
|
pWinding->numpoints = 4;
|
|
pWinding->p[0] = pWorldPoints[(ndxV*(width+1))+ndxU];
|
|
pWinding->p[1] = pWorldPoints[((ndxV+1)*(width+1))+ndxU];
|
|
pWinding->p[2] = pWorldPoints[((ndxV+1)*(width+1))+(ndxU+1)];
|
|
pWinding->p[3] = pWorldPoints[(ndxV*(width+1))+(ndxU+1)];
|
|
|
|
// calculate the area
|
|
float area = WindingArea( pWinding );
|
|
|
|
int ndxSample = ( ndxV * width ) + ndxU;
|
|
pSamples[ndxSample].w = pWinding;
|
|
pSamples[ndxSample].area = area;
|
|
}
|
|
else
|
|
{
|
|
Msg( "BuildDispSamples: WARNING - failed winding allocation\n" );
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// build the samples points (based on s, t and sampleoffset (center of samples);
|
|
// generates world space position and normal)
|
|
//
|
|
for( ndxV = 0; ndxV < height; ndxV++ )
|
|
{
|
|
for( ndxU = 0; ndxU < width; ndxU++ )
|
|
{
|
|
int ndxSample = ( ndxV * width ) + ndxU;
|
|
pSamples[ndxSample].s = ndxU;
|
|
pSamples[ndxSample].t = ndxV;
|
|
pSamples[ndxSample].coord[0] = ( ndxU * stepU ) + halfStepU;
|
|
pSamples[ndxSample].coord[1] = ( ndxV * stepV ) + halfStepV;
|
|
pDispTree->DispUVToSurfPoint( pSamples[ndxSample].coord, pSamples[ndxSample].pos, 1.0f );
|
|
pDispTree->DispUVToSurfNormal( pSamples[ndxSample].coord, pSamples[ndxSample].normal );
|
|
}
|
|
}
|
|
|
|
//
|
|
// copy over samples
|
|
//
|
|
pFaceLight->numsamples = width * height;
|
|
pFaceLight->sample = ( sample_t* )calloc( pFaceLight->numsamples, sizeof( *pFaceLight->sample ) );
|
|
if( !pFaceLight->sample )
|
|
return false;
|
|
|
|
memcpy( pFaceLight->sample, pSamples, pFaceLight->numsamples * sizeof( *pFaceLight->sample ) );
|
|
|
|
// statistics - warning?!
|
|
if( pFaceLight->numsamples == 0 )
|
|
{
|
|
Msg( "BuildDispSamples: WARNING - no samples %d\n", pLightInfo->face - g_pFaces );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::BuildDispLuxels( lightinfo_t *pLightInfo, facelight_t *pFaceLight, int ndxFace )
|
|
{
|
|
// get the tree assosciated with the face
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
if( !pDispTree )
|
|
return false;
|
|
|
|
// lightmap size
|
|
int width = pLightInfo->face->m_LightmapTextureSizeInLuxels[0]+1;
|
|
int height = pLightInfo->face->m_LightmapTextureSizeInLuxels[1]+1;
|
|
|
|
// calcuate actual luxel points
|
|
pFaceLight->numluxels = width * height;
|
|
pFaceLight->luxel = ( Vector* )calloc( pFaceLight->numluxels, sizeof( *pFaceLight->luxel ) );
|
|
pFaceLight->luxelNormals = ( Vector* )calloc( pFaceLight->numluxels, sizeof( Vector ) );
|
|
if( !pFaceLight->luxel || !pFaceLight->luxelNormals )
|
|
return false;
|
|
|
|
float stepU = 1.0f / ( float )( width - 1 );
|
|
float stepV = 1.0f / ( float )( height - 1 );
|
|
|
|
for( int ndxV = 0; ndxV < height; ndxV++ )
|
|
{
|
|
for( int ndxU = 0; ndxU < width; ndxU++ )
|
|
{
|
|
int ndxLuxel = ( ndxV * width ) + ndxU;
|
|
|
|
Vector2D uv( ndxU * stepU, ndxV * stepV );
|
|
pDispTree->DispUVToSurfPoint( uv, pFaceLight->luxel[ndxLuxel], 1.0f );
|
|
pDispTree->DispUVToSurfNormal( uv, pFaceLight->luxelNormals[ndxLuxel] );
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------------
|
|
bool CVRadDispMgr::BuildDispSamplesAndLuxels_DoFast( lightinfo_t *pLightInfo, facelight_t *pFaceLight, int ndxFace )
|
|
{
|
|
// get the tree assosciated with the face
|
|
DispCollTree_t &dispTree = m_DispTrees[g_pFaces[ndxFace].dispinfo];
|
|
CVRADDispColl *pDispTree = dispTree.m_pDispTree;
|
|
if( !pDispTree )
|
|
return false;
|
|
|
|
// lightmap size
|
|
int width = pLightInfo->face->m_LightmapTextureSizeInLuxels[0]+1;
|
|
int height = pLightInfo->face->m_LightmapTextureSizeInLuxels[1]+1;
|
|
|
|
// calcuate actual luxel points
|
|
pFaceLight->numsamples = width * height;
|
|
pFaceLight->sample = ( sample_t* )calloc( pFaceLight->numsamples, sizeof( *pFaceLight->sample ) );
|
|
if( !pFaceLight->sample )
|
|
return false;
|
|
|
|
pFaceLight->numluxels = width * height;
|
|
pFaceLight->luxel = ( Vector* )calloc( pFaceLight->numluxels, sizeof( *pFaceLight->luxel ) );
|
|
pFaceLight->luxelNormals = ( Vector* )calloc( pFaceLight->numluxels, sizeof( Vector ) );
|
|
if( !pFaceLight->luxel || !pFaceLight->luxelNormals )
|
|
return false;
|
|
|
|
float stepU = 1.0f / ( float )( width - 1 );
|
|
float stepV = 1.0f / ( float )( height - 1 );
|
|
float halfStepU = stepU * 0.5f;
|
|
float halfStepV = stepV * 0.5f;
|
|
|
|
for( int ndxV = 0; ndxV < height; ndxV++ )
|
|
{
|
|
for( int ndxU = 0; ndxU < width; ndxU++ )
|
|
{
|
|
int ndx = ( ndxV * width ) + ndxU;
|
|
|
|
pFaceLight->sample[ndx].s = ndxU;
|
|
pFaceLight->sample[ndx].t = ndxV;
|
|
pFaceLight->sample[ndx].coord[0] = ( ndxU * stepU ) + halfStepU;
|
|
pFaceLight->sample[ndx].coord[1] = ( ndxV * stepV ) + halfStepV;
|
|
|
|
pDispTree->DispUVToSurfPoint( pFaceLight->sample[ndx].coord, pFaceLight->sample[ndx].pos, 1.0f );
|
|
pDispTree->DispUVToSurfNormal( pFaceLight->sample[ndx].coord, pFaceLight->sample[ndx].normal );
|
|
|
|
pFaceLight->luxel[ndx] = pFaceLight->sample[ndx].pos;
|
|
pFaceLight->luxelNormals[ndx] = pFaceLight->sample[ndx].normal;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|