140 lines
4.3 KiB
C++
140 lines
4.3 KiB
C++
// This code contains NVIDIA Confidential Information and is disclosed to you
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// under a form of NVIDIA software license agreement provided separately to you.
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//
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// Notice
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// NVIDIA Corporation and its licensors retain all intellectual property and
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// proprietary rights in and to this software and related documentation and
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// any modifications thereto. Any use, reproduction, disclosure, or
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// distribution of this software and related documentation without an express
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// license agreement from NVIDIA Corporation is strictly prohibited.
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//
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// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
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// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
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// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
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// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// Information and code furnished is believed to be accurate and reliable.
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// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
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// information or for any infringement of patents or other rights of third parties that may
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// result from its use. No license is granted by implication or otherwise under any patent
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// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
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// This code supersedes and replaces all information previously supplied.
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// NVIDIA Corporation products are not authorized for use as critical
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// components in life support devices or systems without express written approval of
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// NVIDIA Corporation.
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//
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// Copyright (c) 2008-2013 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_HEIGHTFIELD_GEOMETRY
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#define PX_PHYSICS_NX_HEIGHTFIELD_GEOMETRY
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/** \addtogroup geomutils
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@{
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*/
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#include "geometry/PxTriangleMeshGeometry.h"
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#include "common/PxCoreUtilityTypes.h"
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#ifndef PX_DOXYGEN
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namespace physx
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{
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#endif
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#define PX_MIN_HEIGHTFIELD_XZ_SCALE 1e-8f
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#define PX_MIN_HEIGHTFIELD_Y_SCALE (0.0001f / PxReal(0xFFFF))
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class PxHeightField;
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/**
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\brief Height field geometry class.
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This class unifies a height field object with a scaling, and
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lets the combined object be used anywhere a PxGeometry is needed.
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There is a minimum allowed value for Y and XZ scaling - PX_MIN_HEIGHTFIELD_XZ_SCALE, heightfield creation will fail if XZ value is below this value.
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*/
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class PxHeightFieldGeometry : public PxGeometry
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{
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public:
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PX_INLINE PxHeightFieldGeometry() :
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PxGeometry(PxGeometryType::eHEIGHTFIELD),
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heightField(NULL),
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heightScale(1.0f),
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rowScale(1.0f),
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columnScale(1.0f),
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heightFieldFlags(0)
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{}
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PX_INLINE PxHeightFieldGeometry(PxHeightField* hf,
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PxMeshGeometryFlags flags,
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PxReal heightscale,
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PxReal rowscale,
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PxReal columnscale) :
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PxGeometry (PxGeometryType::eHEIGHTFIELD),
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heightField (hf) ,
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heightScale (heightscale),
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rowScale (rowscale),
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columnScale (columnscale),
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heightFieldFlags (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
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*/
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PX_INLINE bool isValid() const;
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public:
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/**
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\brief The height field data.
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*/
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PxHeightField* heightField;
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/**
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\brief The scaling factor for the height field in vertical direction (y direction in local space).
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*/
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PxReal heightScale;
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/**
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\brief The scaling factor for the height field in the row direction (x direction in local space).
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*/
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PxReal rowScale;
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/**
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\brief The scaling factor for the height field in the column direction (z direction in local space).
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*/
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PxReal columnScale;
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/**
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\brief Flags to specify some collision properties for the height field.
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*/
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PxMeshGeometryFlags heightFieldFlags;
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PxPadding<3> paddingFromFlags; //< padding for mesh flags.
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};
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PX_INLINE bool PxHeightFieldGeometry::isValid() const
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{
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if (mType != PxGeometryType::eHEIGHTFIELD)
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return false;
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if (!PxIsFinite(heightScale) || !PxIsFinite(rowScale) || !PxIsFinite(columnScale))
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return false;
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if (rowScale < PX_MIN_HEIGHTFIELD_XZ_SCALE || columnScale < PX_MIN_HEIGHTFIELD_XZ_SCALE || heightScale < PX_MIN_HEIGHTFIELD_Y_SCALE)
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return false;
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if (!heightField)
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return false;
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return true;
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}
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#ifndef 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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