/** * @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 #include #ifndef LL_USESYSTEMLIBS class daeElement; class domMesh; #endif #define MAX_MODEL_FACES 8 LL_ALIGN_PREFIX(16) class LLMeshSkinInfo : public LLRefCount { LL_ALIGN_NEW public: LLMeshSkinInfo(); LLMeshSkinInfo(LLSD& data); LLMeshSkinInfo(const LLUUID& mesh_id, LLSD& data); void fromLLSD(LLSD& data); LLSD asLLSD(bool include_joints, bool lock_scale_if_joint_position) const; void updateHash(); U32 sizeBytes() const; LLUUID mMeshID; std::vector mJointNames; mutable std::vector mJointNums; typedef std::vector matrix_list_t; matrix_list_t mInvBindMatrix; // bones/joints position overrides matrix_list_t mAlternateBindMatrix; // cached multiply of mBindShapeMatrix and mInvBindMatrix matrix_list_t mBindPoseMatrix; LL_ALIGN_16(LLMatrix4a mBindShapeMatrix); float mPelvisOffset; bool mLockScaleIfJointPosition; bool mInvalidJointsScrubbed; bool mJointNumsInitialized; U64 mHash = 0; } LL_ALIGN_POSTFIX(16); LL_ALIGN_PREFIX(16) class LLModel : public LLVolume { LL_ALIGN_NEW 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 > convex_hull_decomposition; typedef std::vector hull; class PhysicsMesh { public: std::vector mPositions; std::vector mNormals; ~PhysicsMesh() {} void clear() { mPositions.clear(); mNormals.clear(); } bool empty() const { return mPositions.empty(); } U32 sizeBytes() const { U32 res = sizeof(std::vector) * 2; res += sizeof(LLVector3) * static_cast(mPositions.size()); res += sizeof(LLVector3) * static_cast(mNormals.size()); return res; } }; class Decomposition { public: Decomposition() { } Decomposition(LLSD& data); ~Decomposition() { } 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 mMesh; LLModel::PhysicsMesh mBaseHullMesh; LLModel::PhysicsMesh mPhysicsShapeMesh; }; LLModel(const 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 pos, LLStrider norm, LLStrider tc, LLStrider 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 remapVolumeFaces(); void optimizeVolumeFaces(); void offsetMesh( const LLVector3& pivotPoint ); void getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out) const; 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 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; } //Make sure that we return false for any values that are within the tolerance for equivalence bool jointPositionalLookup( const LLVector3& a, const LLVector3& b ) { const float epsilon = 1e-5f; return (a - b).length() < epsilon; } //copy of position array for this model -- mPosition[idx].mV[X,Y,Z] std::vector mPosition; //map of positions to skin weights --- mSkinWeights[pos].mV[0..4] == . //joint_index corresponds to mJointList typedef std::vector weight_list; typedef std::map 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 mHullCenter; U32 mHullPoints; //ID for storing this model in a .slm file S32 mLocalID; Decomposition mPhysics; EModelStatus mStatus ; // A model/object can only have 8 faces, spillover faces will // be moved to new model/object and assigned a submodel id. int mSubmodelID; } LL_ALIGN_POSTFIX(16); typedef std::vector > model_list; typedef std::queue > 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{ nullptr }; // 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 material_map; class LLModelInstanceBase { public: LLPointer mModel; LLPointer mLOD[LLModel::NUM_LODS]; LLUUID mMeshID; LLMatrix4 mTransform; material_map mMaterial; LLModelInstanceBase(LLModel* model, const LLMatrix4& transform, const material_map& materials) : mModel(model), mTransform(transform), mMaterial(materials) { } LLModelInstanceBase() : mModel(NULL) { } virtual ~LLModelInstanceBase() { mModel = NULL; for (int j = 0; j < LLModel::NUM_LODS; ++j) { mLOD[j] = NULL; } }; }; typedef std::vector model_instance_list; class LLModelInstance : public LLModelInstanceBase { public: std::string mLabel; LLUUID mMeshID; S32 mLocalMeshID; LLModelInstance(LLModel* model, const std::string& label, const LLMatrix4& transform, const material_map& materials) : LLModelInstanceBase(model, transform, materials), mLabel(label) { mLocalMeshID = -1; } LLModelInstance(LLSD& data); ~LLModelInstance() {} 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