674 lines
37 KiB
C
674 lines
37 KiB
C
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_PHYSICS_IMMEDIATE_MODE
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#define PX_PHYSICS_IMMEDIATE_MODE
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/** \addtogroup immediatemode
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@{ */
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#include "PxPhysXConfig.h"
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#include "solver/PxSolverDefs.h"
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#include "collision/PxCollisionDefs.h"
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#include "PxArticulationReducedCoordinate.h"
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#if !PX_DOXYGEN
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namespace physx
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{
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#endif
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#if !PX_DOXYGEN
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namespace immediate
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{
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#endif
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/**
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\brief Structure to store rigid body properties
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*/
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struct PxRigidBodyData
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{
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PX_ALIGN(16, PxVec3 linearVelocity); //!< 12 Linear velocity
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PxReal invMass; //!< 16 Inverse mass
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PxVec3 angularVelocity; //!< 28 Angular velocity
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PxReal maxDepenetrationVelocity; //!< 32 Maximum de-penetration velocity
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PxVec3 invInertia; //!< 44 Mass-space inverse interia diagonal vector
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PxReal maxContactImpulse; //!< 48 Maximum permissable contact impulse
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PxTransform body2World; //!< 76 World space transform
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PxReal linearDamping; //!< 80 Linear damping coefficient
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PxReal angularDamping; //!< 84 Angular damping coefficient
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PxReal maxLinearVelocitySq; //!< 88 Squared maximum linear velocity
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PxReal maxAngularVelocitySq; //!< 92 Squared maximum angular velocity
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PxU32 pad; //!< 96 Padding for 16-byte alignment
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};
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/**
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\brief Callback class to record contact points produced by immediate::PxGenerateContacts
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*/
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class PxContactRecorder
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{
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public:
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/**
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\brief Method to record new contacts
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\param [in] contactPoints The contact points produced
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\param [in] nbContacts The number of contact points produced
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\param [in] index The index of this pair. This is an index from 0-N-1 identifying which pair this relates to from within the array of pairs passed to PxGenerateContacts
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\return a boolean to indicate if this callback successfully stored the contacts or not.
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*/
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virtual bool recordContacts(const Gu::ContactPoint* contactPoints, const PxU32 nbContacts, const PxU32 index) = 0;
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virtual ~PxContactRecorder(){}
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};
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/**
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\brief Constructs a PxSolverBodyData structure based on rigid body properties. Applies gravity, damping and clamps maximum velocity.
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\param [in] inRigidData The array rigid body properties
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\param [out] outSolverBodyData The array of solverBodyData produced to repreent these bodies
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\param [in] nbBodies The total number of solver bodies to create
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\param [in] gravity The gravity vector
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\param [in] dt The timestep
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxConstructSolverBodies(const PxRigidBodyData* inRigidData, PxSolverBodyData* outSolverBodyData, const PxU32 nbBodies, const PxVec3& gravity, const PxReal dt);
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/**
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\brief Constructs a PxSolverBodyData structure for a static body at a given pose.
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\param [in] globalPose The pose of this static actor
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\param [out] solverBodyData The solver body representation of this static actor
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxConstructStaticSolverBody(const PxTransform& globalPose, PxSolverBodyData& solverBodyData);
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/**
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\brief Groups together sets of independent PxSolverConstraintDesc objects to be solved using SIMD SOA approach.
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\param [in] solverConstraintDescs The set of solver constraint descs to batch
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\param [in] nbConstraints The number of constraints to batch
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\param [in,out] solverBodies The array of solver bodies that the constraints reference. Some fields in these structures are written to as scratch memory for the batching.
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\param [in] nbBodies The number of bodies
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\param [out] outBatchHeaders The batch headers produced by this batching process. This array must have at least 1 entry per input constraint
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\param [out] outOrderedConstraintDescs A reordered copy of the constraint descs. This array is referenced by the constraint batches. This array must have at least 1 entry per input constraint.
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\param [in,out] articulations The array of articulations that the constraints reference. Some fields in these structures are written to as scratch memory for the batching.
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\param [in] nbArticulations The number of articulations
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\return The total number of batches produced. This should be less than or equal to nbConstraints.
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\note This method considers all bodies within the range [0, nbBodies-1] to be valid dynamic bodies. A given dynamic body can only be referenced in a batch once. Static or kinematic bodies can be
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referenced multiple times within a batch safely because constraints do not affect their velocities. The batching will implicitly consider any bodies outside of the range [0, nbBodies-1] to be
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infinite mass (static or kinematic). This means that either appending static/kinematic to the end of the array of bodies or placing static/kinematic bodies at before the start body pointer
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will ensure that the minimum number of batches are produced.
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API PxU32 PxBatchConstraints( const PxSolverConstraintDesc* solverConstraintDescs, const PxU32 nbConstraints, PxSolverBody* solverBodies, const PxU32 nbBodies,
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PxConstraintBatchHeader* outBatchHeaders, PxSolverConstraintDesc* outOrderedConstraintDescs,
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Dy::ArticulationV** articulations=NULL, const PxU32 nbArticulations=0);
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/**
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\brief Creates a set of contact constraint blocks. Note that, depending the results of PxBatchConstraints, each batchHeader may refer to up to 4 solverConstraintDescs.
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This function will allocate both constraint and friction patch data via the PxConstraintAllocator provided. Constraint data is only valid until PxSolveConstraints has completed.
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Friction data is to be retained and provided by the application for friction correlation.
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\param [in] batchHeaders Array of batch headers to process
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\param [in] nbHeaders The total number of headers
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\param [in] contactDescs An array of contact descs defining the pair and contact properties of each respective contacting pair
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\param [in] allocator An allocator callback to allocate constraint and friction memory
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\param [in] invDt The inverse timestep
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\param [in] bounceThreshold The bounce threshold. Relative velocities below this will be solved by bias only. Relative velocities above this will be solved by restitution. If restitution is zero
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then these pairs will always be solved by bias.
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\param [in] frictionOffsetThreshold The friction offset threshold. Contacts whose separations are below this threshold can generate friction constraints.
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\param [in] correlationDistance The correlation distance used by friction correlation to identify whether a friction patch is broken on the grounds of relation separation.
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\return a boolean to define if this method was successful or not.
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateContactConstraints(PxConstraintBatchHeader* batchHeaders, const PxU32 nbHeaders, PxSolverContactDesc* contactDescs,
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PxConstraintAllocator& allocator, const PxReal invDt, const PxReal bounceThreshold, const PxReal frictionOffsetThreshold, const PxReal correlationDistance);
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/**
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\brief Creates a set of joint constraint blocks. Note that, depending the results of PxBatchConstraints, the batchHeader may refer to up to 4 solverConstraintDescs
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\param [in] batchHeaders The array of batch headers to be processed
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\param [in] nbHeaders The total number of batch headers to process
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\param [in] jointDescs An array of constraint prep descs defining the properties of the constraints being created
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\param [in] allocator An allocator callback to allocate constraint data
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\param [in] dt The timestep
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\param [in] invDt The inverse timestep
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\return a boolean indicating if this method was successful or not.
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateJointConstraints(PxConstraintBatchHeader* batchHeaders, const PxU32 nbHeaders, PxSolverConstraintPrepDesc* jointDescs, PxConstraintAllocator& allocator, const PxReal dt, const PxReal invDt);
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/**
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\brief Creates a set of joint constraint blocks. This function runs joint shaders defined inside PxConstraint** param, fills in joint row information in jointDescs and then calls PxCreateJointConstraints.
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\param [in] batchHeaders The set of batchHeaders to be processed
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\param [in] nbBatchHeaders The number of batch headers to process.
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\param [in] constraints The set of constraints to be used to produce constraint rows
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\param [in,out] jointDescs An array of constraint prep descs defining the properties of the constraints being created
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\param [in] allocator An allocator callback to allocate constraint data
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\param [in] dt The timestep
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\param [in] invDt The inverse timestep
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\return a boolean indicating if this method was successful or not.
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@see PxCreateJointConstraints
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateJointConstraintsWithShaders(PxConstraintBatchHeader* batchHeaders, const PxU32 nbBatchHeaders, PxConstraint** constraints, PxSolverConstraintPrepDesc* jointDescs, PxConstraintAllocator& allocator, const PxReal dt, const PxReal invDt);
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struct PxImmediateConstraint
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{
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PxConstraintSolverPrep prep;
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const void* constantBlock;
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};
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/**
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\brief Creates a set of joint constraint blocks. This function runs joint shaders defined inside PxImmediateConstraint* param, fills in joint row information in jointDescs and then calls PxCreateJointConstraints.
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\param [in] batchHeaders The set of batchHeaders to be processed
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\param [in] nbBatchHeaders The number of batch headers to process.
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\param [in] constraints The set of constraints to be used to produce constraint rows
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\param [in,out] jointDescs An array of constraint prep descs defining the properties of the constraints being created
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\param [in] allocator An allocator callback to allocate constraint data
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\param [in] dt The timestep
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\param [in] invDt The inverse timestep
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\return a boolean indicating if this method was successful or not.
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@see PxCreateJointConstraints
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateJointConstraintsWithImmediateShaders(PxConstraintBatchHeader* batchHeaders, const PxU32 nbBatchHeaders, PxImmediateConstraint* constraints, PxSolverConstraintPrepDesc* jointDescs, PxConstraintAllocator& allocator, const PxReal dt, const PxReal invDt);
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/**
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\brief Iteratively solves the set of constraints defined by the provided PxConstraintBatchHeader and PxSolverConstraintDesc structures. Updates deltaVelocities inside the PxSolverBody structures. Produces resulting linear and angular motion velocities.
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\param [in] batchHeaders The set of batch headers to be solved
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\param [in] nbBatchHeaders The total number of batch headers to be solved
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\param [in] solverConstraintDescs The reordererd set of solver constraint descs referenced by the batch headers
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\param [in,out] solverBodies The set of solver bodies the bodies reference
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\param [out] linearMotionVelocity The resulting linear motion velocity
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\param [out] angularMotionVelocity The resulting angular motion velocity.
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\param [in] nbSolverBodies The total number of solver bodies
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\param [in] nbPositionIterations The number of position iterations to run
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\param [in] nbVelocityIterations The number of velocity iterations to run
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\param [in] dt Timestep. Only needed if articulations are sent to the function.
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\param [in] invDt Inverse timestep. Only needed if articulations are sent to the function.
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\param [in] nbSolverArticulations Number of articulations to solve constraints for.
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\param [in] solverArticulations Array of articulations to solve constraints for.
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxSolveConstraints(const PxConstraintBatchHeader* batchHeaders, const PxU32 nbBatchHeaders, const PxSolverConstraintDesc* solverConstraintDescs,
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const PxSolverBody* solverBodies, PxVec3* linearMotionVelocity, PxVec3* angularMotionVelocity, const PxU32 nbSolverBodies, const PxU32 nbPositionIterations, const PxU32 nbVelocityIterations,
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const float dt=0.0f, const float invDt=0.0f, const PxU32 nbSolverArticulations=0, Dy::ArticulationV** solverArticulations=NULL);
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/**
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\brief Integrates a rigid body, returning the new velocities and transforms. After this function has been called, solverBodyData stores all the body's velocity data.
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\param [in,out] solverBodyData The array of solver body data to be integrated
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\param [in] solverBody The bodies' linear and angular velocities
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\param [in] linearMotionVelocity The bodies' linear motion velocity array
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\param [in] angularMotionState The bodies' angular motion velocity array
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\param [in] nbBodiesToIntegrate The total number of bodies to integrate
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\param [in] dt The timestep
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxIntegrateSolverBodies(PxSolverBodyData* solverBodyData, PxSolverBody* solverBody, const PxVec3* linearMotionVelocity, const PxVec3* angularMotionState, const PxU32 nbBodiesToIntegrate, const PxReal dt);
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/**
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\brief Performs contact generation for a given pair of geometries at the specified poses. Produced contacts are stored in the provided Gu::ContactBuffer. Information is cached in PxCache structure
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to accelerate future contact generation between pairs. This cache data is valid only as long as the memory provided by PxCacheAllocator has not been released/re-used. Recommendation is to
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retain that data for a single simulation frame, discarding cached data after 2 frames. If the cached memory has been released/re-used prior to the corresponding pair having contact generation
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performed again, it is the application's responsibility to reset the PxCache.
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\param [in] geom0 Array of geometries to perform collision detection on.
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\param [in] geom1 Array of geometries to perform collision detection on
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\param [in] pose0 Array of poses associated with the corresponding entry in the geom0 array
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\param [in] pose1 Array of poses associated with the corresponding entry in the geom1 array
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\param [in,out] contactCache Array of contact caches associated with each pair geom0[i] + geom1[i]
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\param [in] nbPairs The total number of pairs to process
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\param [in] contactRecorder A callback that is called to record contacts for each pair that detects contacts
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\param [in] contactDistance The distance at which contacts begin to be generated between the pairs
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\param [in] meshContactMargin The mesh contact margin.
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\param [in] toleranceLength The toleranceLength. Used for scaling distance-based thresholds internally to produce appropriate results given simulations in different units
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\param [in] allocator A callback to allocate memory for the contact cache
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\return a boolean indicating if the function was successful or not.
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxGenerateContacts(const PxGeometry* const * geom0, const PxGeometry* const * geom1, const PxTransform* pose0, const PxTransform* pose1, PxCache* contactCache, const PxU32 nbPairs, PxContactRecorder& contactRecorder,
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const PxReal contactDistance, const PxReal meshContactMargin, const PxReal toleranceLength, PxCacheAllocator& allocator);
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/**
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\brief Register articulation-related solver functions. This is equivalent to PxRegisterArticulationsReducedCoordinate() for PxScene-level articulations.
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Call this first to enable reduced coordinates articulations in immediate mode.
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@see PxRegisterArticulationsReducedCoordinate
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxRegisterImmediateArticulations();
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struct PxArticulationJointData
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{
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PxTransform parentPose;
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PxTransform childPose;
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};
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struct PxFeatherstoneArticulationJointData : PxArticulationJointData
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{
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PxArticulationJointType::Enum type;
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PxArticulationMotion::Enum motion[PxArticulationAxis::eCOUNT];
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PxArticulationLimit limits[PxArticulationAxis::eCOUNT];
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PxArticulationDrive drives[PxArticulationAxis::eCOUNT];
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PxReal targetPos[PxArticulationAxis::eCOUNT];
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PxReal targetVel[PxArticulationAxis::eCOUNT];
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PxReal frictionCoefficient;
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PxReal maxJointVelocity;
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};
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struct PxFeatherstoneArticulationData
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{
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PxArticulationFlags flags;
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};
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struct PxMutableLinkData
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{
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PxVec3 inverseInertia;
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float inverseMass;
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float linearDamping;
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float angularDamping;
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float maxLinearVelocitySq;
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float maxAngularVelocitySq;
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bool disableGravity;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct PxLinkData
|
||
|
|
{
|
||
|
|
PxTransform pose;
|
||
|
|
PxVec3 linearVelocity;
|
||
|
|
PxVec3 angularVelocity;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct PxFeatherstoneArticulationLinkData : PxMutableLinkData
|
||
|
|
{
|
||
|
|
PxFeatherstoneArticulationLinkData() { initData(); }
|
||
|
|
|
||
|
|
void initData()
|
||
|
|
{
|
||
|
|
inboundJoint.type = PxArticulationJointType::eUNDEFINED; // For root
|
||
|
|
inboundJoint.parentPose = PxTransform(PxIdentity);
|
||
|
|
inboundJoint.childPose = PxTransform(PxIdentity);
|
||
|
|
inboundJoint.frictionCoefficient = 0.05f;
|
||
|
|
inboundJoint.maxJointVelocity = 100.0f;
|
||
|
|
|
||
|
|
pose = PxTransform(PxIdentity);
|
||
|
|
parent = 0;
|
||
|
|
inverseInertia = PxVec3(1.0f);
|
||
|
|
inverseMass = 1.0f;
|
||
|
|
linearDamping = 0.05f;
|
||
|
|
angularDamping = 0.05f;
|
||
|
|
maxLinearVelocitySq = 100.0f * 100.0f;
|
||
|
|
maxAngularVelocitySq = 50.0f * 50.0f;
|
||
|
|
disableGravity = false;
|
||
|
|
|
||
|
|
for(PxU32 i=0;i<PxArticulationAxis::eCOUNT;i++)
|
||
|
|
{
|
||
|
|
inboundJoint.motion[i] = PxArticulationMotion::eLOCKED;
|
||
|
|
inboundJoint.limits[i].low = inboundJoint.limits[i].high = 0.0f;
|
||
|
|
inboundJoint.drives[i].stiffness = 0.0f;
|
||
|
|
inboundJoint.drives[i].damping = 0.0f;
|
||
|
|
inboundJoint.drives[i].maxForce = 0.0f;
|
||
|
|
inboundJoint.drives[i].driveType = PxArticulationDriveType::eFORCE;
|
||
|
|
}
|
||
|
|
memset(inboundJoint.targetPos, 0xff, sizeof(PxReal)*PxArticulationAxis::eCOUNT);
|
||
|
|
memset(inboundJoint.targetVel, 0xff, sizeof(PxReal)*PxArticulationAxis::eCOUNT);
|
||
|
|
}
|
||
|
|
|
||
|
|
PxFeatherstoneArticulationJointData inboundJoint;
|
||
|
|
|
||
|
|
// Non-mutable link data
|
||
|
|
PxTransform pose;
|
||
|
|
Dy::ArticulationLinkHandle parent;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Creates an immediate-mode reduced-coordinate articulation.
|
||
|
|
\param [in] data Articulation data
|
||
|
|
\return Articulation handle
|
||
|
|
|
||
|
|
@see PxReleaseArticulation
|
||
|
|
*/
|
||
|
|
// PT: Design note: I use Dy::ArticulationV* to be consistent with PxSolverDefs.h
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API Dy::ArticulationV* PxCreateFeatherstoneArticulation(const PxFeatherstoneArticulationData& data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Releases an immediate-mode reduced-coordinate articulation.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
|
||
|
|
@see PxCreateFeatherstoneArticulation
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxReleaseArticulation(Dy::ArticulationV* articulation);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Creates an articulation cache.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\return Articulation cache
|
||
|
|
|
||
|
|
@see PxReleaseArticulationCache
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API PxArticulationCache* PxCreateArticulationCache(Dy::ArticulationV* articulation);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Copy the internal data of the articulation to the cache
|
||
|
|
\param[in] articulation articulation handle.
|
||
|
|
\param[in] cache Articulation data
|
||
|
|
\param[in] flag Indicates which values of the articulation system are copied to the cache
|
||
|
|
|
||
|
|
@see createCache PxApplyArticulationCache
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxCopyInternalStateToArticulationCache(Dy::ArticulationV* articulation, PxArticulationCache& cache, PxArticulationCacheFlags flag);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Apply the user defined data in the cache to the articulation system
|
||
|
|
\param[in] articulation articulation handle.
|
||
|
|
\param[in] cache Articulation data.
|
||
|
|
\param[in] flag Defines which values in the cache will be applied to the articulation
|
||
|
|
|
||
|
|
@see createCache PxCopyInternalStateToArticulationCache
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxApplyArticulationCache(Dy::ArticulationV* articulation, PxArticulationCache& cache, PxArticulationCacheFlags flag);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Release an articulation cache
|
||
|
|
|
||
|
|
\param[in] cache The cache to release
|
||
|
|
|
||
|
|
@see PxCreateArticulationCache PxCopyInternalStateToArticulationCache PxCopyInternalStateToArticulationCache
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxReleaseArticulationCache(PxArticulationCache& cache);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Adds a link to an immediate-mode reduced-coordinate articulation. The articulation becomes the link's owner/parent.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\param [in] data Link data
|
||
|
|
\param [in] isLastLink Hint to tell the system whether the added link is the last one or not.
|
||
|
|
This is a minor optimization, it is also ok to always use either true or false here.
|
||
|
|
\return Articulation link handle
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API Dy::ArticulationLinkHandle PxAddArticulationLink(Dy::ArticulationV* articulation, const PxFeatherstoneArticulationLinkData& data, bool isLastLink=false);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Retrieves owner/parent articulation handle from a link handle.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\return Articulation handle
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API Dy::ArticulationV* PxGetLinkArticulation(const Dy::ArticulationLinkHandle link);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Retrieves link index from a link handle.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\return Link index
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API PxU32 PxGetLinkIndex(const Dy::ArticulationLinkHandle link);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Retrieves non-mutable link data from a link handle.
|
||
|
|
The data here is computed by the articulation code but cannot be directly changed by users.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\param [out] data Link data
|
||
|
|
\return True if success
|
||
|
|
|
||
|
|
@see PxGetAllLinkData
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxGetLinkData(const Dy::ArticulationLinkHandle link, PxLinkData& data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Retrieves non-mutable link data from an articulation handle (all links).
|
||
|
|
The data here is computed by the articulation code but cannot be directly changed by users.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\param [out] data Link data for N links, or NULL to just retrieve the number of links.
|
||
|
|
\return Number of links in the articulation = number of link data structure written to the data array.
|
||
|
|
|
||
|
|
@see PxGetLinkData
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API PxU32 PxGetAllLinkData(const Dy::ArticulationV* articulation, PxLinkData* data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Retrieves mutable link data from a link handle.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\param [out] data Data for this link
|
||
|
|
\return True if success
|
||
|
|
|
||
|
|
@see PxSetMutableLinkData
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxGetMutableLinkData(const Dy::ArticulationLinkHandle link, PxMutableLinkData& data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Sets mutable link data for given link.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\param [in] data Data for this link
|
||
|
|
\return True if success
|
||
|
|
|
||
|
|
@see PxGetMutableLinkData
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxSetMutableLinkData(Dy::ArticulationLinkHandle link, const PxMutableLinkData& data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Retrieves joint data from a link handle.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\param [out] data Joint data for this link
|
||
|
|
\return True if success
|
||
|
|
|
||
|
|
@see PxSetJointData
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxGetJointData(const Dy::ArticulationLinkHandle link, PxFeatherstoneArticulationJointData& data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Sets joint data for given link.
|
||
|
|
\param [in] link Link handle
|
||
|
|
\param [in] data Joint data for this link
|
||
|
|
\return True if success
|
||
|
|
|
||
|
|
@see PxGetJointData
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxSetJointData(Dy::ArticulationLinkHandle link, const PxFeatherstoneArticulationJointData& data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Computes unconstrained velocities for a given articulation.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\param [in] gravity Gravity vector
|
||
|
|
\param [in] dt Timestep
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxComputeUnconstrainedVelocities(Dy::ArticulationV* articulation, const PxVec3& gravity, const PxReal dt);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Updates bodies for a given articulation.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\param [in] dt Timestep
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxUpdateArticulationBodies(Dy::ArticulationV* articulation, const PxReal dt);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Computes unconstrained velocities for a given articulation.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\param [in] gravity Gravity vector
|
||
|
|
\param [in] dt Timestep/numPosIterations
|
||
|
|
\param [in] totalDt Timestep
|
||
|
|
\param [in] invDt 1/(Timestep/numPosIterations)
|
||
|
|
\param [in] invTotalDt 1/Timestep
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxComputeUnconstrainedVelocitiesTGS(Dy::ArticulationV* articulation, const PxVec3& gravity, const PxReal dt, const PxReal totalDt, const PxReal invDt, const PxReal invTotalDt);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Updates bodies for a given articulation.
|
||
|
|
\param [in] articulation Articulation handle
|
||
|
|
\param [in] dt Timestep
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxUpdateArticulationBodiesTGS(Dy::ArticulationV* articulation, const PxReal dt);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Constructs a PxSolverBodyData structure based on rigid body properties. Applies gravity, damping and clamps maximum velocity.
|
||
|
|
\param [in] inRigidData The array rigid body properties
|
||
|
|
\param [out] outSolverBodyVel The array of PxTGSSolverBodyVel structures produced to represent these bodies
|
||
|
|
\param [out] outSolverBodyTxInertia The array of PxTGSSolverBodyTxInertia produced to represent these bodies
|
||
|
|
\param [out] outSolverBodyData The array of PxTGSolverBodyData produced to repreent these bodies
|
||
|
|
\param [in] nbBodies The total number of solver bodies to create
|
||
|
|
\param [in] gravity The gravity vector
|
||
|
|
\param [in] dt The timestep
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxConstructSolverBodiesTGS(const PxRigidBodyData* inRigidData, PxTGSSolverBodyVel* outSolverBodyVel, PxTGSSolverBodyTxInertia* outSolverBodyTxInertia, PxTGSSolverBodyData* outSolverBodyData, const PxU32 nbBodies, const PxVec3& gravity, const PxReal dt);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Constructs a PxSolverBodyData structure for a static body at a given pose.
|
||
|
|
\param [in] globalPose The pose of this static actor
|
||
|
|
\param [out] solverBodyVel The velocity component of this body (will be zero)
|
||
|
|
\param [out] solverBodyTxInertia The intertia and transform delta component of this body (will be zero)
|
||
|
|
\param [out] solverBodyData The solver body representation of this static actor
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API void PxConstructStaticSolverBodyTGS(const PxTransform& globalPose, PxTGSSolverBodyVel& solverBodyVel, PxTGSSolverBodyTxInertia& solverBodyTxInertia, PxTGSSolverBodyData& solverBodyData);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Groups together sets of independent PxSolverConstraintDesc objects to be solved using SIMD SOA approach.
|
||
|
|
\param [in] solverConstraintDescs The set of solver constraint descs to batch
|
||
|
|
\param [in] nbConstraints The number of constraints to batch
|
||
|
|
\param [in,out] solverBodies The array of solver bodies that the constraints reference. Some fields in these structures are written to as scratch memory for the batching.
|
||
|
|
\param [in] nbBodies The number of bodies
|
||
|
|
\param [out] outBatchHeaders The batch headers produced by this batching process. This array must have at least 1 entry per input constraint
|
||
|
|
\param [out] outOrderedConstraintDescs A reordered copy of the constraint descs. This array is referenced by the constraint batches. This array must have at least 1 entry per input constraint.
|
||
|
|
\param [in,out] articulations The array of articulations that the constraints reference. Some fields in these structures are written to as scratch memory for the batching.
|
||
|
|
\param [in] nbArticulations The number of articulations
|
||
|
|
\return The total number of batches produced. This should be less than or equal to nbConstraints.
|
||
|
|
|
||
|
|
\note This method considers all bodies within the range [0, nbBodies-1] to be valid dynamic bodies. A given dynamic body can only be referenced in a batch once. Static or kinematic bodies can be
|
||
|
|
referenced multiple times within a batch safely because constraints do not affect their velocities. The batching will implicitly consider any bodies outside of the range [0, nbBodies-1] to be
|
||
|
|
infinite mass (static or kinematic). This means that either appending static/kinematic to the end of the array of bodies or placing static/kinematic bodies at before the start body pointer
|
||
|
|
will ensure that the minimum number of batches are produced.
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API PxU32 PxBatchConstraintsTGS(const PxSolverConstraintDesc* solverConstraintDescs, const PxU32 nbConstraints, PxTGSSolverBodyVel* solverBodies, const PxU32 nbBodies,
|
||
|
|
PxConstraintBatchHeader* outBatchHeaders, PxSolverConstraintDesc* outOrderedConstraintDescs,
|
||
|
|
Dy::ArticulationV** articulations = NULL, const PxU32 nbArticulations = 0);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Creates a set of contact constraint blocks. Note that, depending the results of PxBatchConstraints, each batchHeader may refer to up to 4 solverConstraintDescs.
|
||
|
|
This function will allocate both constraint and friction patch data via the PxConstraintAllocator provided. Constraint data is only valid until PxSolveConstraints has completed.
|
||
|
|
Friction data is to be retained and provided by the application for friction correlation.
|
||
|
|
|
||
|
|
\param [in] batchHeaders Array of batch headers to process
|
||
|
|
\param [in] nbHeaders The total number of headers
|
||
|
|
\param [in] contactDescs An array of contact descs defining the pair and contact properties of each respective contacting pair
|
||
|
|
\param [in] allocator An allocator callback to allocate constraint and friction memory
|
||
|
|
\param [in] invDt The inverse timestep/nbPositionIterations
|
||
|
|
\param [in] invTotalDt The inverse time-step
|
||
|
|
\param [in] bounceThreshold The bounce threshold. Relative velocities below this will be solved by bias only. Relative velocities above this will be solved by restitution. If restitution is zero
|
||
|
|
then these pairs will always be solved by bias.
|
||
|
|
\param [in] frictionOffsetThreshold The friction offset threshold. Contacts whose separations are below this threshold can generate friction constraints.
|
||
|
|
\param [in] correlationDistance The correlation distance used by friction correlation to identify whether a friction patch is broken on the grounds of relation separation.
|
||
|
|
|
||
|
|
\return a boolean to define if this method was successful or not.
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateContactConstraintsTGS(PxConstraintBatchHeader* batchHeaders, const PxU32 nbHeaders, PxTGSSolverContactDesc* contactDescs,
|
||
|
|
PxConstraintAllocator& allocator, const PxReal invDt, const PxReal invTotalDt, const PxReal bounceThreshold, const PxReal frictionOffsetThreshold, const PxReal correlationDistance);
|
||
|
|
|
||
|
|
/**
|
||
|
|
\brief Creates a set of joint constraint blocks. Note that, depending the results of PxBatchConstraints, the batchHeader may refer to up to 4 solverConstraintDescs
|
||
|
|
\param [in] batchHeaders The array of batch headers to be processed
|
||
|
|
\param [in] nbHeaders The total number of batch headers to process
|
||
|
|
\param [in] jointDescs An array of constraint prep descs defining the properties of the constraints being created
|
||
|
|
\param [in] allocator An allocator callback to allocate constraint data
|
||
|
|
\param [in] dt The total time-step/nbPositionIterations
|
||
|
|
\param [in] totalDt The total time-step
|
||
|
|
\param [in] invDt The inverse (timestep/nbPositionIterations)
|
||
|
|
\param [in] invTotalDt The inverse total time-step
|
||
|
|
\param [in] lengthScale PxToleranceScale::length, i.e. a meter in simulation units
|
||
|
|
\return a boolean indicating if this method was successful or not.
|
||
|
|
*/
|
||
|
|
PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateJointConstraintsTGS(PxConstraintBatchHeader* batchHeaders, const PxU32 nbHeaders,
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PxTGSSolverConstraintPrepDesc* jointDescs, PxConstraintAllocator& allocator, const PxReal dt, const PxReal totalDt, const PxReal invDt,
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const PxReal invTotalDt, const PxReal lengthScale);
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/**
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\brief Creates a set of joint constraint blocks. This function runs joint shaders defined inside PxConstraint** param, fills in joint row information in jointDescs and then calls PxCreateJointConstraints.
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\param [in] batchHeaders The set of batchHeaders to be processed
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\param [in] nbBatchHeaders The number of batch headers to process.
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\param [in] constraints The set of constraints to be used to produce constraint rows
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\param [in,out] jointDescs An array of constraint prep descs defining the properties of the constraints being created
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\param [in] allocator An allocator callback to allocate constraint data
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\param [in] dt The total time-step/nbPositionIterations
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\param [in] totalDt The total time-step
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\param [in] invDt The inverse (timestep/nbPositionIterations)
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\param [in] invTotalDt The inverse total time-step
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\param [in] lengthScale PxToleranceScale::length, i.e. a meter in simulation units
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\return a boolean indicating if this method was successful or not.
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@see PxCreateJointConstraints
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateJointConstraintsWithShadersTGS(PxConstraintBatchHeader* batchHeaders, const PxU32 nbBatchHeaders, PxConstraint** constraints, PxTGSSolverConstraintPrepDesc* jointDescs, PxConstraintAllocator& allocator, const PxReal dt,
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const PxReal totalDt, const PxReal invDt, const PxReal invTotalDt, const PxReal lengthScale);
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/**
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\brief Creates a set of joint constraint blocks. This function runs joint shaders defined inside PxImmediateConstraint* param, fills in joint row information in jointDescs and then calls PxCreateJointConstraints.
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\param [in] batchHeaders The set of batchHeaders to be processed
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\param [in] nbBatchHeaders The number of batch headers to process.
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\param [in] constraints The set of constraints to be used to produce constraint rows
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\param [in,out] jointDescs An array of constraint prep descs defining the properties of the constraints being created
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\param [in] allocator An allocator callback to allocate constraint data
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\param [in] dt The total time-step/nbPositionIterations
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\param [in] totalDt The total time-step
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\param [in] invDt The inverse (timestep/nbPositionIterations)
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\param [in] invTotalDt The inverse total time-step
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\param [in] lengthScale PxToleranceScale::length, i.e. a meter in simulation units
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\return a boolean indicating if this method was successful or not.
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@see PxCreateJointConstraints
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API bool PxCreateJointConstraintsWithImmediateShadersTGS(PxConstraintBatchHeader* batchHeaders, const PxU32 nbBatchHeaders, PxImmediateConstraint* constraints, PxTGSSolverConstraintPrepDesc* jointDescs,
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PxConstraintAllocator& allocator, const PxReal dt, const PxReal totalDt, const PxReal invDt, const PxReal invTotalDt, const PxReal lengthScale);
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/**
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\brief Iteratively solves the set of constraints defined by the provided PxConstraintBatchHeader and PxSolverConstraintDesc structures. Updates deltaVelocities inside the PxSolverBody structures. Produces resulting linear and angular motion velocities.
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\param [in] batchHeaders The set of batch headers to be solved
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\param [in] nbBatchHeaders The total number of batch headers to be solved
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\param [in] solverConstraintDescs The reordererd set of solver constraint descs referenced by the batch headers
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\param [in,out] solverBodies The set of solver bodies the bodies reference
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\param [in,out] txInertias The set of solver body TxInertias the bodies reference
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\param [in] nbSolverBodies The total number of solver bodies
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\param [in] nbPositionIterations The number of position iterations to run
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\param [in] nbVelocityIterations The number of velocity iterations to run
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\param [in] dt time-step/nbPositionIterations
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\param [in] invDt 1/(time-step/nbPositionIterations)
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\param [in] nbSolverArticulations Number of articulations to solve constraints for.
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\param [in] solverArticulations Array of articulations to solve constraints for.
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxSolveConstraintsTGS(const PxConstraintBatchHeader* batchHeaders, const PxU32 nbBatchHeaders, const PxSolverConstraintDesc* solverConstraintDescs,
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PxTGSSolverBodyVel* solverBodies, PxTGSSolverBodyTxInertia* txInertias, const PxU32 nbSolverBodies, const PxU32 nbPositionIterations, const PxU32 nbVelocityIterations,
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const float dt, const float invDt, const PxU32 nbSolverArticulations, Dy::ArticulationV** solverArticulations);
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/**
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\brief Integrates a rigid body, returning the new velocities and transforms. After this function has been called, solverBody stores all the body's velocity data.
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\param [in,out] solverBody The array of solver bodies to be integrated
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\param [in] txInertia The delta pose and inertia terms
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\param [in,out] poses The original poses of the bodies. Updated to be the new poses of the bodies
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\param [in] nbBodiesToIntegrate The total number of bodies to integrate
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\param [in] dt The timestep
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*/
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PX_C_EXPORT PX_PHYSX_CORE_API void PxIntegrateSolverBodiesTGS(PxTGSSolverBodyVel* solverBody, PxTGSSolverBodyTxInertia* txInertia, PxTransform* poses, const PxU32 nbBodiesToIntegrate, const PxReal dt);
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#if !PX_DOXYGEN
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}
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#endif
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#if !PX_DOXYGEN
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}
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#endif
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/** @} */
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#endif
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