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/**
* @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>
#include <boost/align/aligned_allocator.hpp>
class daeElement;
class domMesh;
#define MAX_MODEL_FACES 8
LL_ALIGN_PREFIX(16)
class LLMeshSkinInfo
{
LL_ALIGN_NEW
public:
LLMeshSkinInfo();
LLMeshSkinInfo(LLSD& data);
void fromLLSD(LLSD& data);
LLSD asLLSD(bool include_joints, bool lock_scale_if_joint_position) const;
void updateHash();
LLUUID mMeshID;
std::vector<std::string> mJointNames;
mutable std::vector<S32> mJointNums;
typedef std::vector<LLMatrix4a, boost::alignment::aligned_allocator<LLMatrix4a, 16>> matrix_list_t;
matrix_list_t mInvBindMatrix;
matrix_list_t mAlternateBindMatrix;
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<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 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 ;
// 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<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
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