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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// 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 PX_PHYSICS_NX_TRIANGLEMESH_GEOMETRY
#define PX_PHYSICS_NX_TRIANGLEMESH_GEOMETRY
/** \addtogroup geomutils
@{
*/
#include "geometry/PxGeometry.h"
#include "geometry/PxMeshScale.h"
#include "common/PxCoreUtilityTypes.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
class PxTriangleMesh;
/**
\brief Flags controlling the simulated behavior of the triangle mesh geometry.
Used in ::PxMeshGeometryFlags.
*/
struct PxMeshGeometryFlag
{
enum Enum
{
eDOUBLE_SIDED = (1<<1) //!< Meshes with this flag set are treated as double-sided.
//!< This flag is currently only used for raycasts and sweeps (it is ignored for overlap queries).
//!< For detailed specifications of this flag for meshes and heightfields please refer to the Geometry Query section of the user guide.
};
};
/**
\brief collection of set bits defined in PxMeshGeometryFlag.
@see PxMeshGeometryFlag
*/
typedef PxFlags<PxMeshGeometryFlag::Enum,PxU8> PxMeshGeometryFlags;
PX_FLAGS_OPERATORS(PxMeshGeometryFlag::Enum,PxU8)
/**
\brief Triangle mesh geometry class.
This class unifies a mesh object with a scaling transform, and
lets the combined object be used anywhere a PxGeometry is needed.
The scaling is a transform along arbitrary axes contained in the scale object.
The vertices of the mesh in geometry (or shape) space is the
PxMeshScale::toMat33() transform, multiplied by the vertex space vertices
in the PxConvexMesh object.
*/
class PxTriangleMeshGeometry : public PxGeometry
{
public:
/**
\brief Default constructor.
Creates an empty object with a NULL mesh and identity scale.
*/
PX_INLINE PxTriangleMeshGeometry() :
PxGeometry (PxGeometryType::eTRIANGLEMESH),
triangleMesh(NULL)
{}
/**
\brief Constructor.
\param[in] mesh Mesh pointer. May be NULL, though this will not make the object valid for shape construction.
\param[in] scaling Scale factor.
\param[in] flags Mesh flags.
\
*/
PX_INLINE PxTriangleMeshGeometry( PxTriangleMesh* mesh,
const PxMeshScale& scaling = PxMeshScale(),
PxMeshGeometryFlags flags = PxMeshGeometryFlags()) :
PxGeometry (PxGeometryType::eTRIANGLEMESH),
scale (scaling),
meshFlags (flags),
triangleMesh(mesh)
{}
/**
\brief Returns true if the geometry is valid.
\return True if the current settings are valid for shape creation.
\note A valid triangle mesh has a positive scale value in each direction (scale.scale.x > 0, scale.scale.y > 0, scale.scale.z > 0).
It is illegal to call PxRigidActor::createShape and PxPhysics::createShape with a triangle mesh that has zero extents in any direction.
@see PxRigidActor::createShape, PxPhysics::createShape
*/
PX_INLINE bool isValid() const;
public:
PxMeshScale scale; //!< The scaling transformation.
PxMeshGeometryFlags meshFlags; //!< Mesh flags.
PxPadding<3> paddingFromFlags; //!< padding for mesh flags
PxTriangleMesh* triangleMesh; //!< A reference to the mesh object.
};
PX_INLINE bool PxTriangleMeshGeometry::isValid() const
{
if(mType != PxGeometryType::eTRIANGLEMESH)
return false;
if(!scale.scale.isFinite() || !scale.rotation.isUnit())
return false;
if(!scale.isValidForTriangleMesh())
return false;
if(!triangleMesh)
return false;
return true;
}
#if !PX_DOXYGEN
} // namespace physx
#endif
/** @} */
#endif
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