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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef TEST_CLOTH_HELPERS_H
#define TEST_CLOTH_HELPERS_H
#include "PxShape.h"
#include "PsArray.h"
#include "cloth/PxCloth.h"
#include "cloth/PxClothTypes.h"
#include "cloth/PxClothCollisionData.h"
#include "extensions/PxClothMeshDesc.h"
#include "cooking/PxCooking.h"
#include "foundation/PxVec2.h"
#include "foundation/PxVec4.h"
#include "Test.h"
template<typename T> class SampleArray;
namespace Test
{
/// simple utility functions for PxCloth
class ClothHelpers
{
public:
// border flags
enum BorderFlags
{
NONE = 0,
BORDER_LEFT = (1 << 0),
BORDER_RIGHT = (1 << 1),
BORDER_BOTTOM = (1 << 2),
BORDER_TOP = (1 << 3),
BORDER_NEAR = (1 << 4),
BORDER_FAR = (1 << 5)
};
typedef PxFlags<BorderFlags, PxU16> PxBorderFlags;
// attach cloth border
static bool attachBorder(PxClothParticle* particles, PxU32 numParticles, PxBorderFlags borderFlag);
static bool attachBorder(PxCloth& cloth, PxBorderFlags borderFlag);
// constrain cloth particles that overlap the given shape
static bool attachClothOverlapToShape(PxCloth& cloth, PxShape& shape, PxReal radius = 0.1f);
// create cloth mesh descriptor for a grid mesh defined along two (u,v) axis.
static PxClothMeshDesc createMeshGrid(PxVec3 dirU, PxVec3 dirV, PxU32 numU, PxU32 numV,
SampleArray<PxVec4>& vertices, SampleArray<PxU32>& indices, SampleArray<PxVec2>& texcoords);
// create cloth mesh from obj file
static PxClothMeshDesc createMeshFromObj(const char* filename, PxReal scale, PxQuat rot, PxVec3 offset,
SampleArray<PxVec4>& vertices, SampleArray<PxU32>& indices, SampleArray<PxVec2>& texcoords);
// create capsule data in local space of pose
static bool createCollisionCapsule(const PxTransform &pose, const PxVec3 ¢er0, PxReal r0, const PxVec3 ¢er1, PxReal r1,
SampleArray<PxClothCollisionSphere> &spheres, SampleArray<PxU32> &indexPairs);
// create virtual particle samples
static bool createVirtualParticles(PxCloth& cloth, PxClothMeshDesc& meshDesc, int numSamples);
// get world bounds containing all the colliders and the cloth
static PxBounds3 getAllWorldBounds(PxCloth& cloth);
// get particle location from the cloth
static bool getParticlePositions(PxCloth&cloth, SampleArray<PxVec3> &positions);
// remove duplicate vertices
static PxClothMeshDesc removeDuplicateVertices(PxClothMeshDesc &inMesh, SampleArray<PxVec2> &inTexcoords,
SampleArray<PxVec4>& vertices, SampleArray<PxU32>& indices, SampleArray<PxVec2>& texcoords);
// merge two mesh descriptor and uvs into a single one
static PxClothMeshDesc mergeMeshDesc(PxClothMeshDesc &desc1, PxClothMeshDesc &desc2,
SampleArray<PxVec4>& vertices, SampleArray<PxU32>& indices,
SampleArray<PxVec2>& texcoords1, SampleArray<PxVec2>& texcoords2, SampleArray<PxVec2>& texcoords);
// set motion constraint radius
static bool setMotionConstraints(PxCloth &cloth, PxReal radius);
// set particle location from the cloth
static bool setParticlePositions(PxCloth&cloth, const SampleArray<PxVec3> &positions, bool useConstrainedOnly = true, bool useCurrentOnly = true);
// set stiffness for all the phases
static bool setStiffness(PxCloth& cloth, PxReal stiffness);
};
}
#endif
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