GuCookingConvexMeshBuilder.h

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#ifndef GU_COOKING_CONVEX_MESH_BUILDER_H
#define GU_COOKING_CONVEX_MESH_BUILDER_H
 
#include "cooking/PxCooking.h"
 
#include "GuConvexMeshData.h"
#include "GuCookingConvexPolygonsBuilder.h"
#include "GuSDF.h"
 
namespace physx
{
    class BigConvexData;
    namespace Gu
    {
        struct ConvexHullInitData;
    }
 
    // Convex mesh builder, creates the convex mesh from given polygons and creates internal data
    class ConvexMeshBuilder
    {
    public:
                                    ConvexMeshBuilder(const bool buildGRBData);
                                    ~ConvexMeshBuilder();
 
                // loads the computed or given convex hull from descriptor. 
                // the descriptor does contain polygons directly, triangles are not allowed
                bool                build(const PxConvexMeshDesc&, PxU32 gaussMapVertexLimit, bool validateOnly = false, ConvexHullLib* hullLib = NULL);
 
                // save the convex mesh into stream
                bool                save(PxOutputStream& stream, bool platformMismatch)     const;
 
                // copy the convex mesh into internal convex mesh, which can be directly used then
                bool                copy(Gu::ConvexHullInitData& convexData);
 
                // loads the convex mesh from given polygons
                bool                loadConvexHull(const PxConvexMeshDesc&, ConvexHullLib* hullLib);
 
                // computed hull polygons from given triangles
                bool                computeHullPolygons(const PxU32& nbVerts,const PxVec3* verts, const PxU32& nbTriangles, const PxU32* triangles, PxAllocatorCallback& inAllocator,
                                         PxU32& outNbVerts, PxVec3*& outVertices, PxU32& nbIndices, PxU32*& indices, PxU32& nbPolygons, PxHullPolygon*& polygons);
 
                // compute big convex data
                bool                computeGaussMaps();
 
                // compute mass, inertia tensor
                void                computeMassInfo(bool lowerPrecision);
// TEST_INTERNAL_OBJECTS
                // internal objects
                void                computeInternalObjects();
//~TEST_INTERNAL_OBJECTS
 
                void                computeSDF(const PxConvexMeshDesc& desc);
 
                // set big convex data
                void                setBigConvexData(BigConvexData* data) { mBigConvexData = data; }
 
        mutable ConvexPolygonsBuilder   hullBuilder;
 
    protected:
        Gu::ConvexHullData          mHullData;      
        Gu::SDF*                    mSdfData;
        BigConvexData*              mBigConvexData;     
        PxReal                      mMass;              //this is mass assuming a unit density that can be scaled by instances!
        PxMat33                     mInertia;           //in local space of mesh!
 
    };
 
}
 
#endif