441 lines
12 KiB
C++
441 lines
12 KiB
C++
/**
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* @file llmodel.h
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* @brief Model handling class definitions
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLMODEL_H
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#define LL_LLMODEL_H
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#include "llpointer.h"
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#include "llvolume.h"
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#include "v4math.h"
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#include "m4math.h"
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#include <queue>
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#include <boost/align/aligned_allocator.hpp>
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#include "lljoint.h"
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class daeElement;
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class domMesh;
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#define MAX_MODEL_FACES 8
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LL_ALIGN_PREFIX(16)
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class LLMeshSkinInfo : public LLRefCount
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{
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LL_ALIGN_NEW
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public:
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LLMeshSkinInfo();
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LLMeshSkinInfo(LLSD& data);
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LLMeshSkinInfo(const LLUUID& mesh_id, LLSD& data);
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void fromLLSD(LLSD& data);
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LLSD asLLSD(bool include_joints, bool lock_scale_if_joint_position) const;
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void updateHash();
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U32 sizeBytes() const;
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LLUUID mMeshID;
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std::vector<std::string> mJointNames;
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mutable std::vector<S32> mJointNums;
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typedef std::vector<LLMatrix4a> matrix_list_t;
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matrix_list_t mInvBindMatrix;
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// bones/joints position overrides
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matrix_list_t mAlternateBindMatrix;
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// cached multiply of mBindShapeMatrix and mInvBindMatrix
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matrix_list_t mBindPoseMatrix;
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LL_ALIGN_16(LLMatrix4a mBindShapeMatrix);
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float mPelvisOffset;
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bool mLockScaleIfJointPosition;
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bool mInvalidJointsScrubbed;
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bool mJointNumsInitialized;
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U64 mHash = 0;
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} LL_ALIGN_POSTFIX(16);
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LL_ALIGN_PREFIX(16)
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class LLModel : public LLVolume
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{
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LL_ALIGN_NEW
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public:
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enum
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{
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LOD_IMPOSTOR = 0,
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LOD_LOW,
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LOD_MEDIUM,
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LOD_HIGH,
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LOD_PHYSICS,
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NUM_LODS
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};
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enum EModelStatus
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{
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NO_ERRORS = 0,
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VERTEX_NUMBER_OVERFLOW, //vertex number is >= 65535.
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BAD_ELEMENT,
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INVALID_STATUS
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} ;
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//convex_hull_decomposition is a vector of convex hulls
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//each convex hull is a set of points
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typedef std::vector<std::vector<LLVector3> > convex_hull_decomposition;
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typedef std::vector<LLVector3> hull;
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class PhysicsMesh
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{
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public:
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std::vector<LLVector3> mPositions;
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std::vector<LLVector3> mNormals;
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~PhysicsMesh() {}
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void clear()
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{
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mPositions.clear();
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mNormals.clear();
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}
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bool empty() const
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{
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return mPositions.empty();
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}
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U32 sizeBytes() const
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{
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U32 res = sizeof(std::vector<LLVector3>) * 2;
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res += sizeof(LLVector3) * static_cast<U32>(mPositions.size());
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res += sizeof(LLVector3) * static_cast<U32>(mNormals.size());
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return res;
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}
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};
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class Decomposition
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{
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public:
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Decomposition() { }
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Decomposition(LLSD& data);
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~Decomposition() { }
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void fromLLSD(LLSD& data);
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LLSD asLLSD() const;
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bool hasHullList() const;
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U32 sizeBytes() const;
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void merge(const Decomposition* rhs);
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LLUUID mMeshID;
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LLModel::convex_hull_decomposition mHull;
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LLModel::hull mBaseHull;
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std::vector<LLModel::PhysicsMesh> mMesh;
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LLModel::PhysicsMesh mBaseHullMesh;
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LLModel::PhysicsMesh mPhysicsShapeMesh;
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};
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LLModel(const LLVolumeParams& params, F32 detail);
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~LLModel();
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bool loadModel(std::istream& is);
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bool loadSkinInfo(LLSD& header, std::istream& is);
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bool loadDecomposition(LLSD& header, std::istream& is);
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static LLSD writeModel(
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std::ostream& ostr,
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LLModel* physics,
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LLModel* high,
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LLModel* medium,
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LLModel* low,
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LLModel* imposotr,
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const LLModel::Decomposition& decomp,
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bool upload_skin,
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bool upload_joints,
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bool lock_scale_if_joint_position,
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bool nowrite = false,
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bool as_slm = false,
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int submodel_id = 0);
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static LLSD writeModelToStream(
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std::ostream& ostr,
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LLSD& mdl,
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bool nowrite = false, bool as_slm = false);
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void ClearFacesAndMaterials() { mVolumeFaces.clear(); mMaterialList.clear(); }
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std::string getName() const;
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EModelStatus getStatus() const {return mStatus;}
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static std::string getStatusString(U32 status) ;
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void setNumVolumeFaces(S32 count);
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void setVolumeFaceData(
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S32 f,
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LLStrider<LLVector3> pos,
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LLStrider<LLVector3> norm,
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LLStrider<LLVector2> tc,
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LLStrider<U16> ind,
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U32 num_verts,
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U32 num_indices);
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void generateNormals(F32 angle_cutoff);
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void addFace(const LLVolumeFace& face);
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void sortVolumeFacesByMaterialName();
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void normalizeVolumeFaces();
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void trimVolumeFacesToSize(U32 new_count = LL_SCULPT_MESH_MAX_FACES, LLVolume::face_list_t* remainder = NULL);
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void remapVolumeFaces();
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void optimizeVolumeFaces();
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void offsetMesh( const LLVector3& pivotPoint );
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void getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out) const;
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LLVector3 getTransformedCenter(const LLMatrix4& mat);
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//reorder face list based on mMaterialList in this and reference so
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//order matches that of reference (material ordering touchup)
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// bool matchMaterialOrder(LLModel* ref, int& refFaceCnt, int& modelFaceCnt ); // <FS:Beq/> FIRE-30965 error handling improvements (function relocated)
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bool isMaterialListSubset( LLModel* ref );
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bool needToAddFaces( LLModel* ref, int& refFaceCnt, int& modelFaceCnt );
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typedef std::vector<std::string> material_list;
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material_list mMaterialList;
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material_list& getMaterialList() { return mMaterialList; }
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//data used for skin weights
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class JointWeight
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{
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public:
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S32 mJointIdx;
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F32 mWeight;
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JointWeight()
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{
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mJointIdx = 0;
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mWeight = 0.f;
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}
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JointWeight(S32 idx, F32 weight)
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: mJointIdx(idx), mWeight(weight)
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{
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}
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bool operator<(const JointWeight& rhs) const
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{
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if (mWeight == rhs.mWeight)
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{
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return mJointIdx < rhs.mJointIdx;
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}
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return mWeight < rhs.mWeight;
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}
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};
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struct CompareWeightGreater
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{
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bool operator()(const JointWeight& lhs, const JointWeight& rhs)
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{
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return rhs < lhs; // strongest = first
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}
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};
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//Are the doubles the same w/in epsilon specified tolerance
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bool areEqual( double a, double b )
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{
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const float epsilon = 1e-5f;
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return fabs(a - b) < epsilon;
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}
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//Make sure that we return false for any values that are within the tolerance for equivalence
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bool jointPositionalLookup( const LLVector3& a, const LLVector3& b )
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{
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const float epsilon = 1e-5f;
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return (a - b).length() < epsilon;
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}
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//copy of position array for this model -- mPosition[idx].mV[X,Y,Z]
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std::vector<LLVector3> mPosition;
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//map of positions to skin weights --- mSkinWeights[pos].mV[0..4] == <joint_index>.<weight>
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//joint_index corresponds to mJointList
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typedef std::vector<JointWeight> weight_list;
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typedef std::map<LLVector3, weight_list > weight_map;
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weight_map mSkinWeights;
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//get list of weight influences closest to given position
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weight_list& getJointInfluences(const LLVector3& pos);
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LLMeshSkinInfo mSkinInfo;
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std::string mRequestedLabel; // name requested in UI, if any.
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std::string mLabel; // name computed from dae.
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LLVector3 mNormalizedScale;
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LLVector3 mNormalizedTranslation;
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float mPelvisOffset;
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// convex hull decomposition
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S32 mDecompID;
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void setConvexHullDecomposition(
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const convex_hull_decomposition& decomp);
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void updateHullCenters();
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LLVector3 mCenterOfHullCenters;
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std::vector<LLVector3> mHullCenter;
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U32 mHullPoints;
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//ID for storing this model in a .slm file
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S32 mLocalID;
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Decomposition mPhysics;
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EModelStatus mStatus ;
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// A model/object can only have 8 faces, spillover faces will
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// be moved to new model/object and assigned a submodel id.
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int mSubmodelID;
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} LL_ALIGN_POSTFIX(16);
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typedef std::vector<LLPointer<LLModel> > model_list;
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typedef std::queue<LLPointer<LLModel> > model_queue;
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class LLModelMaterialBase
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{
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public:
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std::string mDiffuseMapFilename;
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std::string mDiffuseMapLabel;
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std::string mBinding;
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LLColor4 mDiffuseColor;
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bool mFullbright;
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LLModelMaterialBase()
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: mFullbright(false)
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{
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mDiffuseColor.set(1,1,1,1);
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}
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};
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class LLImportMaterial : public LLModelMaterialBase
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{
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public:
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friend class LLMeshUploadThread;
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friend class LLModelPreview;
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bool operator<(const LLImportMaterial ¶ms) const;
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LLImportMaterial() : LLModelMaterialBase()
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{
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mDiffuseColor.set(1,1,1,1);
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}
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LLImportMaterial(LLSD& data);
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virtual ~LLImportMaterial();
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LLSD asLLSD();
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const LLUUID& getDiffuseMap() const { return mDiffuseMapID; }
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void setDiffuseMap(const LLUUID& texId) { mDiffuseMapID = texId; }
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protected:
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LLUUID mDiffuseMapID;
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void* mOpaqueData{ nullptr }; // allow refs to viewer/platform-specific structs for each material
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// currently only stores an LLPointer< LLViewerFetchedTexture > > to
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// maintain refs to textures associated with each material for free
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// ref counting.
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};
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typedef std::map<std::string, LLImportMaterial> material_map;
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class LLModelInstanceBase
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{
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public:
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LLPointer<LLModel> mModel;
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LLPointer<LLModel> mLOD[LLModel::NUM_LODS];
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LLUUID mMeshID;
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LLMatrix4 mTransform;
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material_map mMaterial;
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LLModelInstanceBase(LLModel* model, const LLMatrix4& transform, const material_map& materials)
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: mModel(model), mTransform(transform), mMaterial(materials)
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{
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}
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LLModelInstanceBase()
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: mModel(NULL)
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{
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}
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virtual ~LLModelInstanceBase()
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{
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mModel = NULL;
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for (int j = 0; j < LLModel::NUM_LODS; ++j)
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{
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mLOD[j] = NULL;
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}
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};
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};
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typedef std::vector<LLModelInstanceBase> model_instance_list;
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class LLModelInstance : public LLModelInstanceBase
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{
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public:
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std::string mLabel;
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LLUUID mMeshID;
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S32 mLocalMeshID;
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LLModelInstance(LLModel* model, const std::string& label, const LLMatrix4& transform, const material_map& materials)
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: LLModelInstanceBase(model, transform, materials), mLabel(label)
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{
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mLocalMeshID = -1;
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}
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LLModelInstance(LLSD& data);
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~LLModelInstance() {}
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LLSD asLLSD();
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};
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#define LL_DEGENERACY_TOLERANCE 1e-7f
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inline F32 dot3fpu(const LLVector4a& a, const LLVector4a& b)
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{
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volatile F32 p0 = a[0] * b[0];
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volatile F32 p1 = a[1] * b[1];
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volatile F32 p2 = a[2] * b[2];
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return p0 + p1 + p2;
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}
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bool ll_is_degenerate(const LLVector4a& a, const LLVector4a& b, const LLVector4a& c, F32 tolerance = LL_DEGENERACY_TOLERANCE);
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bool validate_face(const LLVolumeFace& face);
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bool validate_model(const LLModel* mdl);
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#endif //LL_LLMODEL_H
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