/** * @file llmodel.h * @brief Model handling class definitions * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #ifndef LL_LLMODEL_H #define LL_LLMODEL_H #include "llpointer.h" #include "llvolume.h" #include "v4math.h" #include "m4math.h" class daeElement; class domMesh; #define MAX_MODEL_FACES 8 class LLMeshSkinInfo { public: LLUUID mMeshID; std::vector<std::string> mJointNames; std::vector<LLMatrix4> mInvBindMatrix; std::vector<LLMatrix4> mAlternateBindMatrix; std::map<std::string, U32> mJointMap; LLMeshSkinInfo() { } LLMeshSkinInfo(LLSD& data); void fromLLSD(LLSD& data); LLSD asLLSD(bool include_joints) const; LLMatrix4 mBindShapeMatrix; float mPelvisOffset; }; class LLModel : public LLVolume { public: enum { LOD_IMPOSTOR = 0, LOD_LOW, LOD_MEDIUM, LOD_HIGH, LOD_PHYSICS, NUM_LODS }; enum EModelStatus { NO_ERRORS = 0, VERTEX_NUMBER_OVERFLOW, //vertex number is >= 65535. BAD_ELEMENT, INVALID_STATUS } ; //convex_hull_decomposition is a vector of convex hulls //each convex hull is a set of points typedef std::vector<std::vector<LLVector3> > convex_hull_decomposition; typedef std::vector<LLVector3> hull; class PhysicsMesh { public: std::vector<LLVector3> mPositions; std::vector<LLVector3> mNormals; void clear() { mPositions.clear(); mNormals.clear(); } bool empty() const { return mPositions.empty(); } }; class Decomposition { public: Decomposition() { } Decomposition(LLSD& data); void fromLLSD(LLSD& data); LLSD asLLSD() const; bool hasHullList() const; void merge(const Decomposition* rhs); LLUUID mMeshID; LLModel::convex_hull_decomposition mHull; LLModel::hull mBaseHull; std::vector<LLModel::PhysicsMesh> mMesh; LLModel::PhysicsMesh mBaseHullMesh; LLModel::PhysicsMesh mPhysicsShapeMesh; }; LLModel(LLVolumeParams& params, F32 detail); ~LLModel(); bool loadModel(std::istream& is); bool loadSkinInfo(LLSD& header, std::istream& is); bool loadDecomposition(LLSD& header, std::istream& is); static LLSD writeModel( std::ostream& ostr, LLModel* physics, LLModel* high, LLModel* medium, LLModel* low, LLModel* imposotr, const LLModel::Decomposition& decomp, BOOL upload_skin, BOOL upload_joints, BOOL nowrite = FALSE, BOOL as_slm = FALSE); static LLSD writeModelToStream( std::ostream& ostr, LLSD& mdl, BOOL nowrite = FALSE, BOOL as_slm = FALSE); static LLModel* loadModelFromDomMesh(domMesh* mesh); static std::string getElementLabel(daeElement* element); std::string getName() const; std::string getMetric() const {return mMetric;} EModelStatus getStatus() const {return mStatus;} static std::string getStatusString(U32 status) ; void appendFaces(LLModel* model, LLMatrix4& transform, LLMatrix4& normal_transform); void appendFace(const LLVolumeFace& src_face, std::string src_material, LLMatrix4& mat, LLMatrix4& norm_mat); void setNumVolumeFaces(S32 count); void setVolumeFaceData( S32 f, LLStrider<LLVector3> pos, LLStrider<LLVector3> norm, LLStrider<LLVector2> tc, LLStrider<U16> ind, U32 num_verts, U32 num_indices); void generateNormals(F32 angle_cutoff); void addFace(const LLVolumeFace& face); void normalizeVolumeFaces(); void optimizeVolumeFaces(); void offsetMesh( const LLVector3& pivotPoint ); void getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out); //reorder face list based on mMaterialList in this and reference so //order matches that of reference (material ordering touchup) bool matchMaterialOrder(LLModel* ref, int& refFaceCnt, int& modelFaceCnt ); bool isMaterialListSubset( LLModel* ref ); bool needToAddFaces( LLModel* ref, int& refFaceCnt, int& modelFaceCnt ); std::vector<std::string> mMaterialList; //data used for skin weights class JointWeight { public: S32 mJointIdx; F32 mWeight; JointWeight() { mJointIdx = 0; mWeight = 0.f; } JointWeight(S32 idx, F32 weight) : mJointIdx(idx), mWeight(weight) { } bool operator<(const JointWeight& rhs) const { if (mWeight == rhs.mWeight) { return mJointIdx < rhs.mJointIdx; } return mWeight < rhs.mWeight; } }; struct CompareWeightGreater { bool operator()(const JointWeight& lhs, const JointWeight& rhs) { return rhs < lhs; // strongest = first } }; //Are the doubles the same w/in epsilon specified tolerance bool areEqual( double a, double b ) { const float epsilon = 1e-5f; return (fabs((a - b)) < epsilon) ? true : false ; } //Make sure that we return false for any values that are within the tolerance for equivalence bool jointPositionalLookup( const LLVector3& a, const LLVector3& b ) { return ( areEqual( a[0],b[0]) && areEqual( a[1],b[1] ) && areEqual( a[2],b[2]) ) ? true : false; } //copy of position array for this model -- mPosition[idx].mV[X,Y,Z] std::vector<LLVector3> mPosition; //map of positions to skin weights --- mSkinWeights[pos].mV[0..4] == <joint_index>.<weight> //joint_index corresponds to mJointList typedef std::vector<JointWeight> weight_list; typedef std::map<LLVector3, weight_list > weight_map; weight_map mSkinWeights; //get list of weight influences closest to given position weight_list& getJointInfluences(const LLVector3& pos); LLMeshSkinInfo mSkinInfo; std::string mRequestedLabel; // name requested in UI, if any. std::string mLabel; // name computed from dae. std::string mMetric; // user-supplied metric data for upload LLVector3 mNormalizedScale; LLVector3 mNormalizedTranslation; float mPelvisOffset; // convex hull decomposition S32 mDecompID; void setConvexHullDecomposition( const convex_hull_decomposition& decomp); void updateHullCenters(); LLVector3 mCenterOfHullCenters; std::vector<LLVector3> mHullCenter; U32 mHullPoints; //ID for storing this model in a .slm file S32 mLocalID; Decomposition mPhysics; EModelStatus mStatus ; protected: void addVolumeFacesFromDomMesh(domMesh* mesh); virtual BOOL createVolumeFacesFromDomMesh(domMesh *mesh); }; #endif //LL_LLMODEL_H