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383 lines
12 KiB
C++
383 lines
12 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_WATER_SHAPE_H
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#define NL_WATER_SHAPE_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/smart_ptr.h"
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#include "nel/misc/aabbox.h"
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#include "nel/misc/class_id.h"
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#include "nel/misc/vector_2f.h"
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#include "nel/misc/polygon.h"
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#include "nel/3d/track.h"
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#include "nel/3d/animation_time.h"
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#include "nel/3d/shape.h"
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#include "nel/3d/vertex_buffer.h"
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#include "nel/3d/driver.h"
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#include <memory>
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namespace NL3D {
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// class id for water
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const NLMISC::CClassId WaterModelClassId = NLMISC::CClassId(0x41a0732e, 0x6c664506);
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// class id for wave maker
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const NLMISC::CClassId WaveMakerModelClassId = NLMISC::CClassId(0x16da3356, 0x7dec65fd);
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const uint WATER_VERTEX_HARD_SIZE = sizeof(float[3]);
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const uint WATER_VERTEX_SOFT_SIZE = sizeof(float[5]);
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// VP Water No Wave
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class CVertexProgramWaterVPNoWave : public CVertexProgram
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{
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public:
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struct CIdx
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{
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uint BumpMap0Scale;
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uint BumpMap0Offset;
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uint BumpMap1Scale;
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uint BumpMap1Offset;
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uint ObserverHeight;
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uint ScaleReflectedRay;
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uint DiffuseMapVector0;
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uint DiffuseMapVector1;
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};
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CVertexProgramWaterVPNoWave(bool diffuse);
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virtual ~CVertexProgramWaterVPNoWave() { }
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virtual void buildInfo();
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inline const CIdx &idx() const { return m_Idx; }
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private:
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CIdx m_Idx;
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bool m_Diffuse;
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};
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/**
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* A water shape.
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* On recent gfx boards with 4 texture stages, it uses the following :
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* -A environment map computed from the hemisphere that is above the water.
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* -A bump map used to perturbate the envmap (bump map 1).
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* -A bump map used to perturbate the bump map 1 (bump map 0). This simulate local water motion
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* -A color map whose both alpha and rgb are modulated with the envmap to get transparency and color of the water.
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* These maps can be scaled, but not rotated. The bump maps can scroll at regular speed over time
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* The envmap, when set to a CTextureBlend, will automatically blend for all shape when CWaterPoolManager::setBlend is called.
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* This may be used to simulate a night / day transition.
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* The color / alpha map may have arbritrary orientation over the surface
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* \author Nicolas Vizerie
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* \author Nevrax France
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* \date 2001
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*/
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class CWaterShape : public IShape
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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public:
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NLMISC_DECLARE_CLASS(CWaterShape);
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///\name Object
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//@{
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/// ctor
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CWaterShape();
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/// dtor
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~CWaterShape();
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/// serial this shape
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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//@}
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/// inherited from IShape
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virtual CTransformShape *createInstance(CScene &scene);
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/// inherited from IShape
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virtual bool clip(const std::vector<CPlane> &pyramid, const CMatrix &worldMatrix);
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/// inherited from IShape. Does nothing. A new traverseRender() was set for that
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virtual void render(IDriver * /* drv */, CTransformShape * /* trans */, bool /* opaquePass */) {}
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/// inherited from IShape
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virtual void getAABBox(NLMISC::CAABBox &bbox) const { bbox = _BBox; }
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/// inherited from ishape
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virtual float getNumTriangles (float distance);
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/// inherited from ishape
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virtual void flushTextures (IDriver &driver, uint selectedTexture);
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///\name Geometry setup
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//@{
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/// all water shape that have the same weter id will share the same height map for wave propagations
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void setWaterPoolID(uint32 id) { _WaterPoolID = id; }
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uint32 getWaterPoolID() const { return _WaterPoolID; }
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/// set the resolution for the grid that is used for tesselation
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static void setScreenGridSize(uint32 x, uint32 y);
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/// set the size of borders. This is needed when water move is high, to avoid hole on the border of the screen
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static void setGridBorderSize(uint32 x, uint32 y);
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static uint32 getScreenXGridSize() { return _XScreenGridSize; }
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static uint32 getScreenYGridSize() { return _YScreenGridSize; }
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static uint32 getXGridBorder() { return _XGridBorder; }
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static uint32 getYGridBorder() { return _YGridBorder; }
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// set a polygon that represent this shape. It must be a 2d polygon, with z kept to 0 everywhere
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void setShape(const NLMISC::CPolygon2D &poly);
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/// get the polygon used by this shape, in the object space
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const NLMISC::CPolygon2D &getShape() const { return _Poly; }
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/// get the polygon this shape, in world space, according to its default position
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void getShapeInWorldSpace(NLMISC::CPolygon &poly) const;
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/// get the polygon of this shape, in world space, according to a user matrix
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void getShapeInWorldSpace(NLMISC::CPolygon &poly, const NLMISC::CMatrix &objMat) const;
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/// Set a factor that is applied to waves height when they are displayed. default is 1
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void setWaveHeightFactor(float f) { _WaveHeightFactor = f; }
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/// Get the factor that is applied to waves height when they are displayed. default is 1
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float getWaveHeightFactor() const { return _WaveHeightFactor; }
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//@}
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///\name Texture setup
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//@{
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// set the environment reflected by water. Index should be 0 for the above texture and 1 for the below texture
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void setEnvMap(uint index, ITexture *envMap);
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ITexture *getEnvMap(uint index) { nlassert(index < 2); return (ITexture *) _EnvMap[index];}
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const ITexture *getEnvMap(uint index) const { nlassert(index < 2); return (const ITexture *) _EnvMap[index];}
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/** Set a height map, used to generate a bumpmap (useful if supported by hardware...)
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* NB : not to be confused with the height map used to modify the geometry, it only modify texture
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*/
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void setHeightMap(uint k, ITexture *hm);
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ITexture *getHeightMap(uint k);
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const ITexture *getHeightMap(uint k) const;
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void setHeightMapScale(uint k, const NLMISC::CVector2f &scale);
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NLMISC::CVector2f getHeightMapScale(uint k) const;
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void setHeightMapSpeed(uint k, const NLMISC::CVector2f &speed); // speed given in texture units
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NLMISC::CVector2f getHeightMapSpeed(uint k) const;
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// set a color map
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void setColorMap(ITexture *map);
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ITexture *getColorMap() { return _ColorMap; }
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const ITexture *getColorMap() const { return _ColorMap; }
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// set A 2x3 matrix used to compute position in colormap, from the x and y coordinates in world space
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void setColorMapMat(const NLMISC::CVector2f &column0, const NLMISC::CVector2f &column1, const NLMISC::CVector2f &pos);
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void getColorMapMat(NLMISC::CVector2f &column0, NLMISC::CVector2f &column1, NLMISC::CVector2f &pos);
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//@}
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///\name LOD
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//@{
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void setTransitionRatio(float percent) { _TransitionRatio = percent; }
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float getTransitionRatio() const { return _TransitionRatio; }
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//@}
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/// \name access default tracks.
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// @{
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CTrackDefaultVector* getDefaultPos () {return &_DefaultPos;}
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CTrackDefaultVector* getDefaultScale () {return &_DefaultScale;}
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CTrackDefaultQuat* getDefaultRotQuat () {return &_DefaultRotQuat;}
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// @}
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/// \name Lighmap
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// @{
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/// Tells this shape that it can replace its colormap by a lightmap during the zone lighting
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void enableLightMapping(bool enable = true) { _ComputeLightmap = enable; }
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bool isLightMappingEnabled() const { return _ComputeLightmap; }
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//@}
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/// \name Misc flags
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// @{
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// Tells whether splashs are enabled (for client only, the flag in itself does nothing, and is here for convenience)
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void enableSplash(bool enable) { _SplashEnabled = enable; }
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bool isSplashEnabled() const { return _SplashEnabled; }
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// Use envmap computed from scene instead of user envmap
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void setUseSceneWaterEnvMap(uint index, bool enable) { nlassert(index < 2); _UsesSceneWaterEnvMap[index] = enable; }
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bool getUseSceneWaterEnvMap(uint index) const { nlassert(index < 2); return _UsesSceneWaterEnvMap[index]; }
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//@}
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// TMP : get mean color of over envmap
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CRGBA computeEnvMapMeanColor();
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private:
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friend class CWaterModel;
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void computeBBox();
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void envMapUpdate();
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void updateHeightMapNormalizationFactors();
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static void initVertexProgram();
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private:
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NLMISC::CAABBox _BBox; // computed from the poly
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NLMISC::CPolygon2D _Poly;
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uint32 _WaterPoolID;
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NLMISC::CSmartPtr<ITexture> _EnvMap[2];
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bool _UsesSceneWaterEnvMap[2];
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NLMISC::CSmartPtr<ITexture> _BumpMap[2];
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NLMISC::CSmartPtr<ITexture> _ColorMap;
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//
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NLMISC::CRGBA _EnvMapMeanColor;
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bool _EnvMapMeanColorComputed;
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//
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NLMISC::CVector2f _HeightMapScale[2];
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NLMISC::CVector2f _HeightMapSpeed[2];
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NLMISC::CVector2f _ColorMapMatColumn0, _ColorMapMatColumn1, _ColorMapMatPos;
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CTrackDefaultVector _DefaultPos;
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CTrackDefaultVector _DefaultScale;
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CTrackDefaultQuat _DefaultRotQuat;
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float _TransitionRatio;
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float _WaveHeightFactor;
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bool _ComputeLightmap;
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bool _SplashEnabled;
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bool _HeightMapTouch[2];
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float _HeightMapNormalizationFactor[2];
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static uint32 _XScreenGridSize; // size with y rotation = 0
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static uint32 _YScreenGridSize;
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static uint32 _MaxGridSize; // size with max rotation around y (without borders)
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static uint32 _XGridBorder;
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static uint32 _YGridBorder;
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static bool _GridSizeTouched;
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//
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/*static NLMISC::CSmartPtr<CVertexProgram> _VertexProgramBump1;
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static NLMISC::CSmartPtr<CVertexProgram> _VertexProgramBump2;
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//
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static NLMISC::CSmartPtr<CVertexProgram> _VertexProgramBump1Diffuse;
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static NLMISC::CSmartPtr<CVertexProgram> _VertexProgramBump2Diffuse;
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//
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static NLMISC::CSmartPtr<CVertexProgram> _VertexProgramNoBump;
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static NLMISC::CSmartPtr<CVertexProgram> _VertexProgramNoBumpDiffuse;*/
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//
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static NLMISC::CSmartPtr<CVertexProgramWaterVPNoWave> _VertexProgramNoWave;
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static NLMISC::CSmartPtr<CVertexProgramWaterVPNoWave> _VertexProgramNoWaveDiffuse;
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};
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/// A wave maker. It can generate waves where it is located
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class CWaveMakerShape : public IShape
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{
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public:
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NLMISC_DECLARE_CLASS(CWaveMakerShape);
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///\name Object
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//@{
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/// ctor
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CWaveMakerShape();
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/// dtor
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~CWaveMakerShape();
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/// serial this shape
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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//@}
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/// inherited from IShape
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virtual CTransformShape *createInstance(CScene &scene);
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/// inherited from IShape
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virtual bool clip(const std::vector<CPlane> &pyramid, const CMatrix &worldMatrix);
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/// inherited from IShape. Does nothing. A new traverseRender() was set for that
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virtual void render(IDriver * /* drv */, CTransformShape * /* trans */, bool /* opaquePass */) {}
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/// inherited from IShape
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virtual void getAABBox(NLMISC::CAABBox &bbox) const;
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/// inherited from ishape
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virtual float getNumTriangles (float /* distance */) { return 0.f; }
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/// inherited from ishape
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virtual void flushTextures (IDriver &/* driver */, uint /* selectedTexture */) {}
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/// set the period for this wave maker
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void setPeriod(TAnimationTime period) { _Period = period; }
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TAnimationTime getPeriod() const { return _Period; }
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/// set the intensity of the waves
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void setIntensity(float intensity) { _Intensity = intensity; }
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float getIntensity() const { return _Intensity; }
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/// radius of the impulsion
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void setRadius(float radius) { _Radius = radius; }
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float getRadius() const { return _Radius; }
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/// set the water pool that's being modified
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void setWaterPoolID(uint32 id) { _PoolID = id; }
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uint32 getWaterPoolID() const { return _PoolID; }
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/// use a periodic impulsion rather than a sinus
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void setImpulsionMode(bool on = true) { _ImpulsionMode = on; }
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bool getImpulsionMode() const { return _ImpulsionMode; }
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CTrackDefaultVector* getDefaultPos () {return &_DefaultPos;}
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private:
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friend class CWaveMakerModel;
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TAnimationTime _Period;
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float _Radius;
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uint32 _PoolID;
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float _Intensity;
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bool _ImpulsionMode;
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CTrackDefaultVector _DefaultPos;
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};
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} // NL3D
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#endif // NL_WATER_SHAPE_H
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/* End of water_shape.h */
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