/** * @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" #include <queue> class daeElement; class domMesh; #define MAX_MODEL_FACES 8 class LLMeshSkinInfo { public: LLMeshSkinInfo(); LLMeshSkinInfo(LLSD& data); void fromLLSD(LLSD& data); LLSD asLLSD(bool include_joints, bool lock_scale_if_joint_position) const; U32 sizeBytes() const; LLUUID mMeshID; std::vector<std::string> mJointNames; mutable std::vector<S32> mJointNums; std::vector<LLMatrix4> mInvBindMatrix; std::vector<LLMatrix4> mAlternateBindMatrix; LLMatrix4 mBindShapeMatrix; float mPelvisOffset; bool mLockScaleIfJointPosition; bool mInvalidJointsScrubbed; bool mJointNumsInitialized; }; 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(); } U32 sizeBytes() const { U32 res = sizeof(std::vector<LLVector3>) * 2; res += sizeof(LLVector3) * mPositions.size(); res += sizeof(LLVector3) * mNormals.size(); return res; } }; class Decomposition { public: Decomposition() { } Decomposition(LLSD& data); void fromLLSD(LLSD& data); LLSD asLLSD() const; bool hasHullList() const; U32 sizeBytes() 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 lock_scale_if_joint_position, BOOL nowrite = FALSE, BOOL as_slm = FALSE, int submodel_id = 0); static LLSD writeModelToStream( std::ostream& ostr, LLSD& mdl, BOOL nowrite = FALSE, BOOL as_slm = FALSE); void ClearFacesAndMaterials() { mVolumeFaces.clear(); mMaterialList.clear(); } std::string getName() const; EModelStatus getStatus() const {return mStatus;} static std::string getStatusString(U32 status) ; 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 sortVolumeFacesByMaterialName(); void normalizeVolumeFaces(); void trimVolumeFacesToSize(U32 new_count = LL_SCULPT_MESH_MAX_FACES, LLVolume::face_list_t* remainder = NULL); void optimizeVolumeFaces(); void offsetMesh( const LLVector3& pivotPoint ); void getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out); LLVector3 getTransformedCenter(const LLMatrix4& mat); //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 ); typedef std::vector<std::string> material_list; material_list mMaterialList; material_list& getMaterialList() { return 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. 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 ; int mSubmodelID; }; typedef std::vector<LLPointer<LLModel> > model_list; typedef std::queue<LLPointer<LLModel> > model_queue; class LLModelMaterialBase { public: std::string mDiffuseMapFilename; std::string mDiffuseMapLabel; std::string mBinding; LLColor4 mDiffuseColor; bool mFullbright; LLModelMaterialBase() : mFullbright(false) { mDiffuseColor.set(1,1,1,1); } }; class LLImportMaterial : public LLModelMaterialBase { public: friend class LLMeshUploadThread; friend class LLModelPreview; bool operator<(const LLImportMaterial ¶ms) const; LLImportMaterial() : LLModelMaterialBase() { mDiffuseColor.set(1,1,1,1); } LLImportMaterial(LLSD& data); virtual ~LLImportMaterial(); LLSD asLLSD(); const LLUUID& getDiffuseMap() const { return mDiffuseMapID; } void setDiffuseMap(const LLUUID& texId) { mDiffuseMapID = texId; } protected: LLUUID mDiffuseMapID; void* mOpaqueData; // allow refs to viewer/platform-specific structs for each material // currently only stores an LLPointer< LLViewerFetchedTexture > > to // maintain refs to textures associated with each material for free // ref counting. }; typedef std::map<std::string, LLImportMaterial> material_map; class LLModelInstanceBase { public: LLPointer<LLModel> mModel; LLPointer<LLModel> mLOD[5]; LLUUID mMeshID; LLMatrix4 mTransform; material_map mMaterial; LLModelInstanceBase(LLModel* model, LLMatrix4& transform, material_map& materials) : mModel(model), mTransform(transform), mMaterial(materials) { } LLModelInstanceBase() : mModel(NULL) { } }; typedef std::vector<LLModelInstanceBase> model_instance_list; class LLModelInstance : public LLModelInstanceBase { public: std::string mLabel; LLUUID mMeshID; S32 mLocalMeshID; LLModelInstance(LLModel* model, const std::string& label, LLMatrix4& transform, material_map& materials) : LLModelInstanceBase(model, transform, materials), mLabel(label) { mLocalMeshID = -1; } LLModelInstance(LLSD& data); LLSD asLLSD(); }; #define LL_DEGENERACY_TOLERANCE 1e-7f inline F32 dot3fpu(const LLVector4a& a, const LLVector4a& b) { volatile F32 p0 = a[0] * b[0]; volatile F32 p1 = a[1] * b[1]; volatile F32 p2 = a[2] * b[2]; return p0 + p1 + p2; } bool ll_is_degenerate(const LLVector4a& a, const LLVector4a& b, const LLVector4a& c, F32 tolerance = LL_DEGENERACY_TOLERANCE); bool validate_face(const LLVolumeFace& face); bool validate_model(const LLModel* mdl); #endif //LL_LLMODEL_H