121 lines
5.3 KiB
C++
121 lines
5.3 KiB
C++
// 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) 2008-2023 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_PARTICLE_CLOTH_COOKER_H
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#define PX_PARTICLE_CLOTH_COOKER_H
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/** \addtogroup extensions
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@{
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*/
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#include "foundation/PxSimpleTypes.h"
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#include "foundation/PxVec4.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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namespace ExtGpu
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{
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/**
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\brief Holds all the information for a particle cloth constraint used in the PxParticleClothCooker.
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*/
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struct PxParticleClothConstraint
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{
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enum
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{
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eTYPE_INVALID_CONSTRAINT = 0,
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eTYPE_HORIZONTAL_CONSTRAINT = 1,
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eTYPE_VERTICAL_CONSTRAINT = 2,
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eTYPE_DIAGONAL_CONSTRAINT = 4,
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eTYPE_BENDING_CONSTRAINT = 8,
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eTYPE_DIAGONAL_BENDING_CONSTRAINT = 16,
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eTYPE_ALL = eTYPE_HORIZONTAL_CONSTRAINT | eTYPE_VERTICAL_CONSTRAINT | eTYPE_DIAGONAL_CONSTRAINT | eTYPE_BENDING_CONSTRAINT | eTYPE_DIAGONAL_BENDING_CONSTRAINT
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};
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PxU32 particleIndexA; //!< The first particle index of this constraint.
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PxU32 particleIndexB; //!< The second particle index of this constraint.
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PxReal length; //!< The distance between particle A and B.
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PxU32 constraintType; //!< The type of constraint, see the constraint type enum.
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};
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/*
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\brief Generates PxParticleClothConstraint constraints that connect the individual particles of a particle cloth.
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*/
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class PxParticleClothCooker
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{
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public:
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virtual void release() = 0;
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/**
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\brief Generate the constraint list and triangle index list.
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\param[in] constraints A pointer to an array of PxParticleClothConstraint constraints. If NULL, the cooker will generate all the constraints. Otherwise, the user-provided constraints will be added.
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\param[in] numConstraints The number of user-provided PxParticleClothConstraint s.
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*/
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virtual void cookConstraints(const PxParticleClothConstraint* constraints = NULL, const PxU32 numConstraints = 0) = 0;
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virtual PxU32* getTriangleIndices() = 0; //!< \return A pointer to the triangle indices.
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virtual PxU32 getTriangleIndicesCount() = 0; //!< \return The number of triangle indices.
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virtual PxParticleClothConstraint* getConstraints() = 0; //!< \return A pointer to the PxParticleClothConstraint constraints.
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virtual PxU32 getConstraintCount() = 0; //!< \return The number of constraints.
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virtual void calculateMeshVolume() = 0; //!< Computes the volume of a closed mesh and the contraintScale. Expects vertices in local space - 'close' to origin.
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virtual PxReal getMeshVolume() = 0; //!< \return The mesh volume calculated by PxParticleClothCooker::calculateMeshVolume.
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protected:
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virtual ~PxParticleClothCooker() {}
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};
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} // namespace ExtGpu
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/**
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\brief Creates a PxParticleClothCooker.
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\param[in] vertexCount The number of vertices of the particle cloth.
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\param[in] inVertices The vertex positions of the particle cloth.
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\param[in] triangleIndexCount The number of triangles of the cloth mesh.
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\param[in] inTriangleIndices The triangle indices of the cloth mesh
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\param[in] constraintTypeFlags The types of constraints to generate. See PxParticleClothConstraint.
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\param[in] verticalDirection The vertical direction of the cloth mesh. This is needed to generate the correct horizontal and vertical constraints to model shear stiffness.
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\param[in] bendingConstraintMaxAngle The maximum angle (in radians) considered in the bending constraints.
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\return A pointer to the new PxParticleClothCooker.
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*/
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ExtGpu::PxParticleClothCooker* PxCreateParticleClothCooker(PxU32 vertexCount, physx::PxVec4* inVertices, PxU32 triangleIndexCount, PxU32* inTriangleIndices,
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PxU32 constraintTypeFlags = ExtGpu::PxParticleClothConstraint::eTYPE_ALL,
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PxVec3 verticalDirection = PxVec3(0.0f, 1.0f, 0.0f), PxReal bendingConstraintMaxAngle = 20.0f*PxTwoPi/360.0f
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);
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#if !PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif
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