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# IMeshManipulator.h

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    00001 // Copyright (C) 2002-2009 Nikolaus Gebhardt
    00002 // This file is part of the "Irrlicht Engine".
    00003 // For conditions of distribution and use, see copyright notice in irrlicht.h
    00004
    00005 #ifndef __I_MESH_MANIPULATOR_H_INCLUDED__
    00006 #define __I_MESH_MANIPULATOR_H_INCLUDED__
    00007
    00008 #include "IReferenceCounted.h"
    00009 #include "vector3d.h"
    00010 #include "aabbox3d.h"
    00011 #include "matrix4.h"
    00012 #include "IAnimatedMesh.h"
    00013 #include "IMeshBuffer.h"
    00014 #include "SVertexManipulator.h"
    00015
    00016 namespace irr
    00017 {
    00018 namespace scene
    00019 {
    00020
    00021         struct SMesh;
    00022
    00024
    00029         class IMeshManipulator : public virtual IReferenceCounted
    00030         {
    00031         public:
    00032
    00034
    00037                 virtual void flipSurfaces(IMesh* mesh) const = 0;
    00038
    00040
    00042                 void setVertexColorAlpha(IMesh* mesh, s32 alpha) const
    00043                 {
    00044                         apply(scene::SVertexColorSetAlphaManipulator(alpha), mesh);
    00045                 }
    00046
    00048
    00050                 void setVertexColors(IMesh* mesh, video::SColor color) const
    00051                 {
    00052                         apply(scene::SVertexColorSetManipulator(color), mesh);
    00053                 }
    00054
    00056
    00059                 virtual void recalculateNormals(IMesh* mesh, bool smooth = false, bool angleWeighted = false) const = 0;
    00060
    00062
    00065                 virtual void recalculateNormals(IMeshBuffer* buffer, bool smooth = false, bool angleWeighted = false) const = 0;
    00066
    00068
    00073                 virtual void recalculateTangents(IMesh* mesh,
    00074                                 bool recalculateNormals=false, bool smooth=false,
    00075                                 bool angleWeighted=false) const=0;
    00076
    00078
    00080                 void scale(IMesh* mesh, const core::vector3df& factor) const
    00081                 {
    00082                         apply(SVertexPositionScaleManipulator(factor), mesh, true);
    00083                 }
    00084
    00086
    00088                 void scale(IMeshBuffer* buffer, const core::vector3df& factor) const
    00089                 {
    00090                         apply(SVertexPositionScaleManipulator(factor), buffer, true);
    00091                 }
    00092
    00094
    00097                 void scaleMesh(IMesh* mesh, const core::vector3df& factor) const {return scale(mesh,factor);}
    00098
    00100
    00103                 void scaleTCoords(scene::IMesh* mesh, const core::vector2df& factor, u32 level=1) const
    00104                 {
    00105                         apply(SVertexTCoordsScaleManipulator(factor, level), mesh);
    00106                 }
    00107
    00109
    00112                 void scaleTCoords(scene::IMeshBuffer* buffer, const core::vector2df& factor, u32 level=1) const
    00113                 {
    00114                         apply(SVertexTCoordsScaleManipulator(factor, level), buffer);
    00115                 }
    00116
    00118
    00120                 void transform(IMesh* mesh, const core::matrix4& m) const
    00121                 {
    00122                         apply(SVertexPositionTransformManipulator(m), mesh, true);
    00123                 }
    00124
    00126
    00128                 void transform(IMeshBuffer* buffer, const core::matrix4& m) const
    00129                 {
    00130                         apply(SVertexPositionTransformManipulator(m), buffer, true);
    00131                 }
    00132
    00134
    00137                 virtual void transformMesh(IMesh* mesh, const core::matrix4& m) const {return transform(mesh,m);}
    00138
    00140
    00146                 virtual SMesh* createMeshCopy(IMesh* mesh) const = 0;
    00147
    00149
    00153                 virtual void makePlanarTextureMapping(IMesh* mesh, f32 resolution=0.001f) const =0;
    00154
    00156
    00160                 virtual void makePlanarTextureMapping(scene::IMeshBuffer* meshbuffer, f32 resolution=0.001f) const =0;
    00161
    00163
    00170                 virtual void makePlanarTextureMapping(scene::IMeshBuffer* buffer, f32 resolutionS, f32 resolutionT, u8 axis, const core::vector3df& offset) const =0;
    00171
    00173
    00189                 virtual IMesh* createMeshWithTangents(IMesh* mesh, bool recalculateNormals=false, bool smooth=false, bool angleWeighted=false, bool recalculateTangents=true) const = 0;
    00190
    00192
    00197                 virtual IMesh* createMeshWith2TCoords(IMesh* mesh) const = 0;
    00198
    00200
    00205                 virtual IMesh* createMeshWith1TCoords(IMesh* mesh) const = 0;
    00206
    00208
    00213                 virtual IMesh* createMeshUniquePrimitives(IMesh* mesh) const = 0;
    00214
    00216
    00221                 virtual IMesh* createMeshWelded(IMesh* mesh, f32 tolerance=core::ROUNDING_ERROR_f32) const = 0;
    00222
    00224
    00226                 virtual s32 getPolyCount(IMesh* mesh) const = 0;
    00227
    00229
    00231                 virtual s32 getPolyCount(IAnimatedMesh* mesh) const = 0;
    00232
    00234
    00240                 virtual IAnimatedMesh * createAnimatedMesh(IMesh* mesh,
    00241                         scene::E_ANIMATED_MESH_TYPE type = scene::EAMT_UNKNOWN) const = 0;
    00242
    00244
    00248                 template <typename Functor>
    00249                 bool apply(const Functor& func, IMeshBuffer* buffer, bool boundingBoxUpdate=false) const
    00250                 {
    00251                         return apply_(func, buffer, boundingBoxUpdate, func);
    00252                 }
    00253
    00254
    00256
    00260                 template <typename Functor>
    00261                 bool apply(const Functor& func, IMesh* mesh, bool boundingBoxUpdate=false) const
    00262                 {
    00263                         if (!mesh)
    00264                                 return true;
    00265                         bool result = true;
    00266                         core::aabbox3df bufferbox;
    00267                         for (u32 i=0; i<mesh->getMeshBufferCount(); ++i)
    00268                         {
    00269                                 result &= apply(func, mesh->getMeshBuffer(i), boundingBoxUpdate);
    00270                                 if (boundingBoxUpdate)
    00271                                 {
    00272                                         if (0==i)
    00273                                                 bufferbox.reset(mesh->getMeshBuffer(i)->getBoundingBox());
    00274                                         else
    00275                                                 bufferbox.addInternalBox(mesh->getMeshBuffer(i)->getBoundingBox());
    00276                                 }
    00277                         }
    00278                         if (boundingBoxUpdate)
    00279                                 mesh->setBoundingBox(bufferbox);
    00280                         return result;
    00281                 }
    00282
    00283 protected:
    00285
    00290                 template <typename Functor>
    00291                 bool apply_(const Functor& func, IMeshBuffer* buffer, bool boundingBoxUpdate, const IVertexManipulator& typeTest) const
    00292                 {
    00293                         if (!buffer)
    00294                                 return true;
    00295
    00296                         core::aabbox3df bufferbox;
    00297                         for (u32 i=0; i<buffer->getVertexCount(); ++i)
    00298                         {
    00299                                 switch (buffer->getVertexType())
    00300                                 {
    00301                                 case video::EVT_STANDARD:
    00302                                         {
    00303                                                 video::S3DVertex* verts = (video::S3DVertex*)buffer->getVertices();
    00304                                                 func(verts[i]);
    00305                                         }
    00306                                         break;
    00307                                 case video::EVT_2TCOORDS:
    00308                                         {
    00309                                                 video::S3DVertex2TCoords* verts = (video::S3DVertex2TCoords*)buffer->getVertices();
    00310                                                 func(verts[i]);
    00311                                         }
    00312                                         break;
    00313                                 case video::EVT_TANGENTS:
    00314                                         {
    00315                                                 video::S3DVertexTangents* verts = (video::S3DVertexTangents*)buffer->getVertices();
    00316                                                 func(verts[i]);
    00317                                         }
    00318                                         break;
    00319                                 }
    00320                                 if (boundingBoxUpdate)
    00321                                 {
    00322                                         if (0==i)
    00323                                                 bufferbox.reset(buffer->getPosition(0));
    00324                                         else
    00325                                                 bufferbox.addInternalPoint(buffer->getPosition(i));
    00326                                 }
    00327                         }
    00328                         if (boundingBoxUpdate)
    00329                                 buffer->setBoundingBox(bufferbox);
    00330                         return true;
    00331                 }
    00332 };
    00333
    00334 } // end namespace scene
    00335 } // end namespace irr
    00336
    00337
    00338 #endif

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