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Diffstat (limited to 'indra/llprimitive/llmodel.h')
| -rw-r--r-- | indra/llprimitive/llmodel.h | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/indra/llprimitive/llmodel.h b/indra/llprimitive/llmodel.h new file mode 100644 index 0000000000..cd9f76fcb7 --- /dev/null +++ b/indra/llprimitive/llmodel.h @@ -0,0 +1,257 @@ +/** + * @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); + + static LLSD writeModelToStream( + std::ostream& ostr, + LLSD& mdl, + BOOL nowrite = FALSE); + + static LLModel* loadModelFromDomMesh(domMesh* mesh); + static std::string getElementLabel(daeElement* element); + std::string getName() const; + 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); + 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 + } + }; + + //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 ; +protected: + void addVolumeFacesFromDomMesh(domMesh* mesh); + virtual BOOL createVolumeFacesFromDomMesh(domMesh *mesh); +}; + +#endif //LL_LLMODEL_H |