DyFEMClothCore.h

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#ifndef PXDV_FEMCLOTH_CORE_H
#define PXDV_FEMCLOTH_CORE_H
 
#include "foundation/PxSimpleTypes.h"
#include "foundation/PxTransform.h"
#include "foundation/PxArray.h"
#if PX_ENABLE_FEATURES_UNDER_CONSTRUCTION
#include "PxFEMCloth.h"
#endif
#include "PxFEMParameter.h"
#include "PxFEMClothFlags.h"
#include "PxsFEMClothMaterialCore.h"
 
namespace physx
{
    class PxBuffer;
 
    namespace Dy
    {
        struct FEMClothCore
        {
        public:
 
            PxFEMParameters                         parameters;
            PxU16                                   solverIterationCounts;
            bool                                    dirty;
            PxReal                                  wakeCounter;
            PxFEMClothFlags                         mFlags;
 
            // Ratio between target volume and rest volume in inflatable simulation.
            PxReal                                  mRestVolumeScale;
 
            PxArray<PxU16>                          mMaterialHandles;
            PxBuffer*                               mClothPositionInvMass;
            PxBuffer*                               mClothVelocity;
            PxBuffer*                               mClothRestPosition;
 
            // multimaterial bending effects
            PxArray<PxReal>                         mBendingScales;
 
            // wind
            PxReal                                  drag;
            PxReal                                  lift;
            PxVec3                                  wind;
            PxReal                                  airDensity;
 
            PxReal                                  maxVelocity;
 
            // negative values mean no activation angle: apply bending force toward rest bending angle
            PxReal                                  mBendingActivationAngle;
 
            // number of collision pair updates per timestep. Collision pair is updated at least once per timestep and increasing the frequency provides better collision pairs.
            PxU32                                   NbCollisionPairUpdatesPerTimestep;
 
            // number of collision substeps in each sub-timestep. Collision constraints can be applied multiple times in each sub-timestep.
            PxU32                                   nbCollisionSubsteps;
 
 
            FEMClothCore()
            {
                drag = 0.f;
                lift = 0.f;
                wind = PxVec3(0.f);
                airDensity = 1.225f; // default: 1.225 kg/m^3
                maxVelocity = 0.f;
                mBendingActivationAngle = -1.f;
                mRestVolumeScale = 0.0f; // No inflatable simulation by default.
 
                NbCollisionPairUpdatesPerTimestep = 1;
                nbCollisionSubsteps = 1;
            }
 
            void setMaterial(const PxU16 materialHandle)
            {
                mMaterialHandles.pushBack(materialHandle);
            }
 
            void clearMaterials() { mMaterialHandles.clear(); }
        };
    }
}
 
#endif