mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
synced 2024-12-16 06:18:43 +00:00
167 lines
5 KiB
C++
167 lines
5 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_TESS_BLOCK_H
|
|
#define NL_TESS_BLOCK_H
|
|
|
|
#include "nel/misc/types_nl.h"
|
|
#include "nel/3d/tessellation.h"
|
|
#include "nel/misc/aabbox.h"
|
|
#include "nel/misc/bsphere.h"
|
|
#include <list>
|
|
|
|
|
|
namespace NL3D
|
|
{
|
|
|
|
|
|
// clip Only with Left/Right and Top/Bottom planes, for faster clip.
|
|
#define NL3D_TESSBLOCK_NUM_CLIP_PLANE 4
|
|
|
|
|
|
// block of 2*2 tiles, for accurate clipping.
|
|
#define NL3D_TESSBLOCK_TILESIZE 4
|
|
|
|
|
|
class CPatchRdrPass;
|
|
class CLandscapeFaceVectorManager;
|
|
class CLandscapeVegetableBlock;
|
|
|
|
// ***************************************************************************
|
|
/**
|
|
* A block of 2*2 tiles, for accurate clipping.
|
|
* \author Lionel Berenguier
|
|
* \author Nevrax France
|
|
* \date 2000
|
|
*/
|
|
class CTessBlock
|
|
{
|
|
public:
|
|
/*
|
|
Cache optim:
|
|
Important to store them here for better Cache access in CPatch::MasterBlock (near too TessBlocks)
|
|
*/
|
|
// FaceVectors.
|
|
TLandscapeIndexType *Far0FaceVector;
|
|
TLandscapeIndexType *Far1FaceVector;
|
|
// tiles one are stored in material.
|
|
|
|
private:
|
|
// Clip info.
|
|
NLMISC::CAABBox BBox;
|
|
NLMISC::CBSphere BSphere;
|
|
bool Empty; // empty bbox? (first extend).
|
|
|
|
// Clip result.
|
|
bool Clipped;
|
|
bool FullFar1; // block Entirely IN transition. (all alpha of Far1 should be 255)
|
|
bool EmptyFar1; // block Entirely OUT transition. (all alpha of Far1 should be 0)
|
|
|
|
public:
|
|
|
|
// Vertices.
|
|
CTessList<CTessFarVertex> FarVertexList;
|
|
CTessList<CTessNearVertex> NearVertexList;
|
|
|
|
// Faces.
|
|
CTessList<CTessFace> FarFaceList;
|
|
CTileMaterial *RdrTileRoot[NL3D_TESSBLOCK_TILESIZE];
|
|
// contains FarFaceList.size() + "RdrTileRoot.size()"
|
|
uint FaceTileMaterialRefCount;
|
|
// contains only "RdrTileRoot.size()"
|
|
uint TileMaterialRefCount;
|
|
|
|
|
|
// For memory optimisation, Info for Lightmap per block of 2x2 tiles are stored here too.
|
|
uint LightMapId;
|
|
uint LightMapRefCount;
|
|
CPatchRdrPass *LightMapRdrPass;
|
|
|
|
|
|
// For micro-vegetation, little tessBlocks got InstanceGroups
|
|
CLandscapeVegetableBlock *VegetableBlock;
|
|
|
|
|
|
public:
|
|
CTessBlock();
|
|
// in dtor, remove me from list of TessBlock to modify, if needed.
|
|
~CTessBlock();
|
|
|
|
// Must have a patch, for good TessBlock FaceVector (re)construction.
|
|
void init(CPatch *patch);
|
|
CPatch *getPatch();
|
|
|
|
// BBox.
|
|
void extendSphereFirst(const CVector &vec);
|
|
void extendSphereAdd(const CVector &vec);
|
|
void extendSphereCompile();
|
|
|
|
// Reset clip to no clipped.
|
|
void resetClip();
|
|
// force clip to clipped.
|
|
void forceClip();
|
|
// Clip. (set Clipped to true/false). Use the CurrentPyramid static.
|
|
static CPlane CurrentPyramid[NL3D_TESSBLOCK_NUM_CLIP_PLANE];
|
|
void clip();
|
|
// Clip Tile/Far.
|
|
void clipFar(const CVector &refineCenter, float tileDistNear, float farTransition);
|
|
|
|
// Clip result.
|
|
bool getClipped() const {return Clipped;}
|
|
bool visibleFar0() const {return !Clipped && !FullFar1;}
|
|
bool visibleTile() const {return !Clipped && !FullFar1;}
|
|
bool visibleFar1() const {return !Clipped && !EmptyFar1;}
|
|
|
|
// create and fill FaceVector, from the FaceList.
|
|
void createFaceVectorFar0(CLandscapeFaceVectorManager &mgr);
|
|
void deleteFaceVectorFar0(CLandscapeFaceVectorManager &mgr);
|
|
void createFaceVectorFar1(CLandscapeFaceVectorManager &mgr);
|
|
void deleteFaceVectorFar1(CLandscapeFaceVectorManager &mgr);
|
|
void createFaceVectorTile(CLandscapeFaceVectorManager &mgr);
|
|
void deleteFaceVectorTile(CLandscapeFaceVectorManager &mgr);
|
|
// suppose FV is created, and refill it.
|
|
void refillFaceVectorFar0();
|
|
void refillFaceVectorFar1();
|
|
void refillFaceVectorTile();
|
|
|
|
|
|
|
|
// append/remove to modify list. This is for FaceVector update durint refine(), addZone() ....
|
|
bool isInModifyList() const {return _PrecToModify!=NULL;}
|
|
// append to modify list has the side effect od deleting ALL FaceVector.
|
|
void appendToModifyListAndDeleteFaceVector(CTessBlock &root, CLandscapeFaceVectorManager &mgr);
|
|
void removeFromModifyList();
|
|
|
|
|
|
public:
|
|
// For CLandscape only.
|
|
CTessBlock *getNextToModify() {return _NextToModify;}
|
|
|
|
private:
|
|
CPatch *_Patch;
|
|
|
|
// If in list, prec is !NULL.
|
|
CTessBlock *_PrecToModify;
|
|
CTessBlock *_NextToModify;
|
|
};
|
|
|
|
|
|
} // NL3D
|
|
|
|
|
|
#endif // NL_TESS_BLOCK_H
|
|
|
|
/* End of tess_block.h */
|