Home

nevrax.com

Nevrax.org News Mailing-list Documentation CVS Bugs License

Documentation                       Search   cloud.h Go to the documentation of this file. /* Copyright, 2002 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. */ #ifndef NL_CLOUD_H #define NL_CLOUD_H // ------------------------------------------------------------------------------------------------ #include "3d/camera.h" #include "3d/material.h" #include "3d/texture.h" #include "3d/texture_mem.h" #include "3d/vertex_buffer.h" #include "nel/misc/smart_ptr.h" #include "nel/misc/geom_ext.h" namespace NL3D { // ------------------------------------------------------------------------------------------------ class CNoise3d; class CCloudScape; struct SCloudTexture3D; struct SCloudTextureClamp; // ------------------------------------------------------------------------------------------------ class CCloud { public: CCloud (CCloudScape *pCloudScape); ~CCloud (); void init (uint32 nVoxelW, uint32 nVoxelH, uint32 nVoxelD, float rBaseFreq, uint32 nNbOctave); void generate (CNoise3d &noise); void light (); void reset (NL3D::CCamera *pViewer); void anim (double dt, double dt2); // Debug void disp (); void dispXYZ (NL3D::CMaterial *pMat = NULL); // Debug // Create the billboard (in the screen at pos (NbW*Width, 0) void genBill (NL3D::CCamera *pViewer, uint32 nBillSize=128); // Display billboard to the screen void dispBill (NL3D::CCamera *pViewer); // Accessors float getX() { return _Pos.x; } float getLastX() { return _LastX; } float getY() { return _Pos.y; } float getZ() { return _Pos.z; } float getSizeX() { return _Size.x; } float getSizeY() { return _Size.y; } float getSizeZ() { return _Size.z; } void setX(float x) { _Pos.x = x; _LastX = x; } void setY(float y) { _Pos.y = y; } void setZ(float z) { _Pos.z = z; } void setSizeX(float x) { _Size.x = x; } void setSizeY(float y) { _Size.y = y; } void setSizeZ(float z) { _Size.z = z; } void setTexClamp (SCloudTextureClamp &t) { _CloudTexClamp = &t; } void setTex3DTemp (SCloudTexture3D &t) { _CloudTexTmp = &t; } void setLooping () { _WaitState = 2; } uint32 getBillSize() { return _BillSize; } uint32 getMemSize () { return _OldBillSize*_OldBillSize*4 + _BillSize*_BillSize*4; } //uint32 Trans, TransTotal; double Time, FuturTime; NLMISC::CRGBA CloudDiffuse; NLMISC::CRGBA CloudAmbient; uint8 CloudPower; uint8 CloudDistAtt; uint8 LastCloudPower; // Cloud power of the old bill board private: void setMode2D (); // in ; viewer, center // out I,J,K, left,right,top,bottom,near,far void calcBill (const NLMISC::CVector &Viewer, const NLMISC::CVector &Center, const NLMISC::CVector &Size, NLMISC::CVector &I, NLMISC::CVector &J, NLMISC::CVector &K, float &Left, float &Right, float &Top, float &Bottom, float &Near, float &Far); private: uint32 _Width, _Height, _Depth; uint32 _NbW, _NbH; // Number of slice in width and height (NbW*NbH = Depth NLMISC::CVector _Size; NLMISC::CVector _Pos; float _LastX; float _BaseFreq; // 1 -> 1 voxel is 1 noise3d pixel 0.5 -> 2 voxels are 1 noise3d pixel (Lowest octave freq) uint32 _NbOctave; double *_UStart, *_VStart, *_WStart; // 1st Lowest octave CCloudScape *_CloudScape; SCloudTexture3D *_CloudTexTmp; // Temporary cloud texture 3D SCloudTextureClamp *_CloudTexClamp; // BillBoard // The billboard is a texture where the cloud is rendered uint32 _BillSize; // ( The texture is always sqare) uint8 *_MemBill; NLMISC::CSmartPtr<NL3D::CTextureMem> _TexBill; // The last texture uint32 _OldBillSize; uint8 *_MemOldBill; NLMISC::CSmartPtr<NL3D::CTextureMem> _TexOldBill; uint8 _WaitState; // Accel for calc bill NLMISC::CVector _BillViewer, _BillCenter, _BillOldCenter; private: NL3D::IDriver *_Driver; }; // ------------------------------------------------------------------------------------------------ } // namespace NL3D #endif // NL_CLOUD_H