151 lines
4.9 KiB
C++
151 lines
4.9 KiB
C++
//
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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_NX_TRIANGLEMESH_GEOMETRY
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#define PX_PHYSICS_NX_TRIANGLEMESH_GEOMETRY
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/** \addtogroup geomutils
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@{
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*/
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#include "geometry/PxGeometry.h"
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#include "geometry/PxMeshScale.h"
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#include "common/PxCoreUtilityTypes.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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class PxTriangleMesh;
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/**
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\brief Flags controlling the simulated behavior of the triangle mesh geometry.
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Used in ::PxMeshGeometryFlags.
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*/
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struct PxMeshGeometryFlag
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{
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enum Enum
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{
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eDOUBLE_SIDED = (1<<1) //!< Meshes with this flag set are treated as double-sided.
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//!< This flag is currently only used for raycasts and sweeps (it is ignored for overlap queries).
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//!< For detailed specifications of this flag for meshes and heightfields please refer to the Geometry Query section of the user guide.
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};
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};
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/**
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\brief collection of set bits defined in PxMeshGeometryFlag.
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@see PxMeshGeometryFlag
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*/
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typedef PxFlags<PxMeshGeometryFlag::Enum,PxU8> PxMeshGeometryFlags;
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PX_FLAGS_OPERATORS(PxMeshGeometryFlag::Enum,PxU8)
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/**
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\brief Triangle mesh geometry class.
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This class unifies a mesh object with a scaling transform, and
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lets the combined object be used anywhere a PxGeometry is needed.
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The scaling is a transform along arbitrary axes contained in the scale object.
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The vertices of the mesh in geometry (or shape) space is the
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PxMeshScale::toMat33() transform, multiplied by the vertex space vertices
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in the PxConvexMesh object.
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*/
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class PxTriangleMeshGeometry : public PxGeometry
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{
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public:
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/**
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\brief Default constructor.
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Creates an empty object with a NULL mesh and identity scale.
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*/
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PX_INLINE PxTriangleMeshGeometry() :
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PxGeometry (PxGeometryType::eTRIANGLEMESH),
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triangleMesh(NULL)
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{}
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/**
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\brief Constructor.
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\param[in] mesh Mesh pointer. May be NULL, though this will not make the object valid for shape construction.
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\param[in] scaling Scale factor.
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\param[in] flags Mesh flags.
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\
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*/
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PX_INLINE PxTriangleMeshGeometry( PxTriangleMesh* mesh,
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const PxMeshScale& scaling = PxMeshScale(),
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PxMeshGeometryFlags flags = PxMeshGeometryFlags()) :
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PxGeometry (PxGeometryType::eTRIANGLEMESH),
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scale (scaling),
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meshFlags (flags),
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triangleMesh(mesh)
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{}
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/**
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\brief Returns true if the geometry is valid.
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\return True if the current settings are valid for shape creation.
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\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).
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It is illegal to call PxRigidActor::createShape and PxPhysics::createShape with a triangle mesh that has zero extents in any direction.
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@see PxRigidActor::createShape, PxPhysics::createShape
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*/
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PX_INLINE bool isValid() const;
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public:
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PxMeshScale scale; //!< The scaling transformation.
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PxMeshGeometryFlags meshFlags; //!< Mesh flags.
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PxPadding<3> paddingFromFlags; //!< padding for mesh flags
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PxTriangleMesh* triangleMesh; //!< A reference to the mesh object.
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};
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PX_INLINE bool PxTriangleMeshGeometry::isValid() const
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{
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if(mType != PxGeometryType::eTRIANGLEMESH)
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return false;
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if(!scale.scale.isFinite() || !scale.rotation.isUnit())
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return false;
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if(!scale.isValidForTriangleMesh())
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return false;
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if(!triangleMesh)
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return false;
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return true;
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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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