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Documentation                       Search   tess_block.cpp Go to the documentation of this file. /* Copyright, 2000 Nevrax Ltd. * * This file is part of NEVRAX NEL. * NEVRAX NEL is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * NEVRAX NEL is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * You should have received a copy of the GNU General Public License * along with NEVRAX NEL; see the file COPYING. If not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. */ #include "std3d.h" #include "3d/tess_block.h" #include "3d/patch_rdr_pass.h" #include "3d/landscape_face_vector_manager.h" namespace NL3D { CPlane CTessBlock::CurrentPyramid[NL3D_TESSBLOCK_NUM_CLIP_PLANE]; // *************************************************************************** CTessBlock::CTessBlock() { _Patch= NULL; // init bounding info. Empty= true; // By default, the tessBlock is clipped. Clipped= true; FullFar1= false; EmptyFar1= false; // init vert/face list. for(sint i=0;i<NL3D_TESSBLOCK_TILESIZE;i++) { RdrTileRoot[i]=NULL; } // init LightMap. LightMapRefCount= 0; Far0FaceVector= NULL; Far1FaceVector= NULL; _PrecToModify= NULL; _NextToModify= NULL; FaceTileMaterialRefCount= 0; TileMaterialRefCount= 0; // Micro-vegetation. VegetableBlock= NULL; } // *************************************************************************** CTessBlock::~CTessBlock() { if(isInModifyList()) { removeFromModifyList(); } // LightMap should be released nlassert(LightMapRefCount==0); } // *************************************************************************** void CTessBlock::init(CPatch *patch) { _Patch= patch; } // *************************************************************************** CPatch *CTessBlock::getPatch() { return _Patch; } // *************************************************************************** void CTessBlock::extendSphereFirst(const CVector &vec) { if(Empty) { Empty= false; BBox.setCenter(vec); BBox.setHalfSize(CVector::Null); } else extendSphereAdd(vec); } // *************************************************************************** void CTessBlock::extendSphereAdd(const CVector &vec) { if( !BBox.include(vec) ) BBox.extend(vec); } // *************************************************************************** void CTessBlock::extendSphereCompile() { BSphere.Center= BBox.getCenter(); BSphere.Radius= BBox.getRadius(); } // *************************************************************************** void CTessBlock::resetClip() { Clipped= false; FullFar1= false; EmptyFar1= false; } // *************************************************************************** void CTessBlock::forceClip() { Clipped= true; } // *************************************************************************** void CTessBlock::clip() { Clipped= false; for(sint i=0;i<NL3D_TESSBLOCK_NUM_CLIP_PLANE;i++) { // If entirely out. if(!BSphere.clipBack( CTessBlock::CurrentPyramid[i] )) { Clipped= true; break; } } } // *************************************************************************** void CTessBlock::clipFar(const CVector &refineCenter, float tileDistNear, float farTransition) { float r= (refineCenter-BSphere.Center).norm(); if( (r-BSphere.Radius) > tileDistNear) { FullFar1= true; } else { if( (r+BSphere.Radius) < (tileDistNear-farTransition) ) EmptyFar1= true; } } // *************************************************************************** void CTessBlock::refillFaceVectorFar0() { // If size is not 0. if(FarFaceList.size()>0) { nlassert(Far0FaceVector!=NULL); // Fill this faceVector, with FarFaceList CTessFace *pFace; uint32 *dest= Far0FaceVector->TriPtr; for(pFace= FarFaceList.begin(); pFace; pFace= (CTessFace*)pFace->Next) { *(dest++)= pFace->FVBase->Index0; *(dest++)= pFace->FVLeft->Index0; *(dest++)= pFace->FVRight->Index0; } } } // *************************************************************************** void CTessBlock::createFaceVectorFar0(CLandscapeFaceVectorManager &mgr) { nlassert(Far0FaceVector==NULL); // If size is not 0. if(FarFaceList.size()>0) { // Create a faceVector of the wanted triangles size. Far0FaceVector= mgr.createFaceVector(FarFaceList.size()); // init. refillFaceVectorFar0(); } } // *************************************************************************** void CTessBlock::deleteFaceVectorFar0(CLandscapeFaceVectorManager &mgr) { if(Far0FaceVector) { mgr.deleteFaceVector(Far0FaceVector); Far0FaceVector= NULL; } } // *************************************************************************** void CTessBlock::refillFaceVectorFar1() { // If size is not 0. if(FarFaceList.size()>0) { nlassert(Far1FaceVector!=NULL); // Fill this faceVector, with FarFaceList CTessFace *pFace; uint32 *dest= Far1FaceVector->TriPtr; for(pFace= FarFaceList.begin(); pFace; pFace= (CTessFace*)pFace->Next) { *(dest++)= pFace->FVBase->Index1; *(dest++)= pFace->FVLeft->Index1; *(dest++)= pFace->FVRight->Index1; } } } // *************************************************************************** void CTessBlock::createFaceVectorFar1(CLandscapeFaceVectorManager &mgr) { nlassert(Far1FaceVector==NULL); // If size is not 0. if(FarFaceList.size()>0) { // Create a faceVector of the wanted triangles size. Far1FaceVector= mgr.createFaceVector(FarFaceList.size()); // init. refillFaceVectorFar1(); } } // *************************************************************************** void CTessBlock::deleteFaceVectorFar1(CLandscapeFaceVectorManager &mgr) { if(Far1FaceVector) { mgr.deleteFaceVector(Far1FaceVector); Far1FaceVector= NULL; } } // *************************************************************************** void CTessBlock::refillFaceVectorTile() { // For all tiles existing, and for all facePass existing, fill the faceVector. for(uint tileId=0; tileId<NL3D_TESSBLOCK_TILESIZE; tileId++) { // if tile exist. if(RdrTileRoot[tileId]) { // For all Pass faces of the tile. for(uint facePass=0; facePass<NL3D_MAX_TILE_FACE; facePass++) { CTessList<CTileFace> &faceList= RdrTileRoot[tileId]->TileFaceList[facePass]; CLandscapeFaceVector *faceVector= RdrTileRoot[tileId]->TileFaceVectors[facePass]; // If some triangles create them. if(faceList.size()>0) { nlassert( faceVector!=NULL ); // Fill this faceVector, with the TileFaceList CTileFace *pFace; uint32 *dest= faceVector->TriPtr; for(pFace= faceList.begin(); pFace; pFace= (CTileFace*)pFace->Next) { *(dest++)= pFace->V[CTessFace::IdUvBase]->Index; *(dest++)= pFace->V[CTessFace::IdUvLeft]->Index; *(dest++)= pFace->V[CTessFace::IdUvRight]->Index; } } } } } } // *************************************************************************** void CTessBlock::createFaceVectorTile(CLandscapeFaceVectorManager &mgr) { // For all tiles existing, and for all facePass existing, create the faceVector. for(uint tileId=0; tileId<NL3D_TESSBLOCK_TILESIZE; tileId++) { // if tile exist. if(RdrTileRoot[tileId]) { // For all Pass faces of the tile. for(uint facePass=0; facePass<NL3D_MAX_TILE_FACE; facePass++) { CTessList<CTileFace> &faceList= RdrTileRoot[tileId]->TileFaceList[facePass]; CLandscapeFaceVector *&faceVector= RdrTileRoot[tileId]->TileFaceVectors[facePass]; // If some triangles create them. if(faceList.size()>0) { // Create a faceVector of the wanted triangles size. faceVector= mgr.createFaceVector(faceList.size()); } } } } // init. refillFaceVectorTile(); } // *************************************************************************** void CTessBlock::deleteFaceVectorTile(CLandscapeFaceVectorManager &mgr) { // For all tiles existing, and for all facePass existing, delete the faceVector. for(uint tileId=0; tileId<NL3D_TESSBLOCK_TILESIZE; tileId++) { // if tile exist. if(RdrTileRoot[tileId]) { // For all Pass faces of the tile. for(uint facePass=0; facePass<NL3D_MAX_TILE_FACE; facePass++) { CLandscapeFaceVector *&faceVector= RdrTileRoot[tileId]->TileFaceVectors[facePass]; // If the faceVector exist, delete it. if(faceVector) { mgr.deleteFaceVector(faceVector); faceVector= NULL; } } } } } // *************************************************************************** void CTessBlock::appendToModifyListAndDeleteFaceVector(CTessBlock &root, CLandscapeFaceVectorManager &mgr) { // If already appened, return. if(isInModifyList()) return; // append to root. _PrecToModify= &root; _NextToModify= root._NextToModify; if(root._NextToModify) root._NextToModify->_PrecToModify= this; root._NextToModify= this; // Then delete All faceVector that may exist. deleteFaceVectorFar0(mgr); deleteFaceVectorFar1(mgr); deleteFaceVectorTile(mgr); } // *************************************************************************** void CTessBlock::removeFromModifyList() { // If already removed, return. // _PrecToModify must be !NULL if(!isInModifyList()) return; // unlink. _PrecToModify->_NextToModify= _NextToModify; if(_NextToModify) _NextToModify->_PrecToModify= _PrecToModify; _PrecToModify= NULL; _NextToModify= NULL; } } // NL3D