152 lines
4.8 KiB
C++
152 lines
4.8 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_CONVEXMESH_GEOMETRY
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#define PX_PHYSICS_NX_CONVEXMESH_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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#include "geometry/PxConvexMesh.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 PxConvexMesh;
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/**
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\brief Flags controlling the simulated behavior of the convex mesh geometry.
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Used in ::PxConvexMeshGeometryFlags.
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*/
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struct PxConvexMeshGeometryFlag
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{
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enum Enum
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{
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eTIGHT_BOUNDS = (1<<0) //!< Use tighter (but more expensive to compute) bounds around the convex geometry.
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};
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};
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/**
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\brief collection of set bits defined in PxConvexMeshGeometryFlag.
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@see PxConvexMeshGeometryFlag
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*/
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typedef PxFlags<PxConvexMeshGeometryFlag::Enum,PxU8> PxConvexMeshGeometryFlags;
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PX_FLAGS_OPERATORS(PxConvexMeshGeometryFlag::Enum,PxU8)
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/**
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\brief Convex mesh geometry class.
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This class unifies a convex 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 PxConvexMeshGeometry : 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 PxConvexMeshGeometry() :
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PxGeometry (PxGeometryType::eCONVEXMESH),
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scale (PxMeshScale(1.0f)),
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convexMesh (NULL),
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meshFlags (PxConvexMeshGeometryFlag::eTIGHT_BOUNDS)
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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 PxConvexMeshGeometry( PxConvexMesh* mesh,
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const PxMeshScale& scaling = PxMeshScale(),
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PxConvexMeshGeometryFlags flags = PxConvexMeshGeometryFlag::eTIGHT_BOUNDS) :
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PxGeometry (PxGeometryType::eCONVEXMESH),
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scale (scaling),
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convexMesh (mesh),
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meshFlags (flags)
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{
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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 convex mesh has a positive scale value in each direction (scale.x > 0, scale.y > 0, scale.z > 0).
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It is illegal to call PxRigidActor::createShape and PxPhysics::createShape with a convex that has zero extent 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 (from vertex space to shape space).
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PxConvexMesh* convexMesh; //!< A reference to the convex mesh object.
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PxConvexMeshGeometryFlags meshFlags; //!< Mesh flags.
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PxPadding<3> paddingFromFlags; //!< padding for mesh flags
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};
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PX_INLINE bool PxConvexMeshGeometry::isValid() const
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{
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if(mType != PxGeometryType::eCONVEXMESH)
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return false;
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if(!scale.scale.isFinite() || !scale.rotationCamera.isUnit())
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return false;
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if(!scale.isValidForConvexMesh())
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return false;
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if(!convexMesh)
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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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