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authorgit perforce import user <a@b>2016-10-25 12:29:14 -0600
committerSheikh Dawood Abdul Ajees <Sheikh Dawood Abdul Ajees>2016-10-25 18:56:37 -0500
commit3dfe2108cfab31ba3ee5527e217d0d8e99a51162 (patch)
treefa6485c169e50d7415a651bf838f5bcd0fd3bfbd /PhysX_3.4/Include/geometry/PxHeightFieldFlag.h
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Initial commit:
PhysX 3.4.0 Update @ 21294896 APEX 1.4.0 Update @ 21275617 [CL 21300167]
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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) 2008-2016 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_COLLISION_NXHEIGHTFIELDFLAG
+#define PX_COLLISION_NXHEIGHTFIELDFLAG
+/** \addtogroup geomutils
+@{
+*/
+
+#include "foundation/PxFlags.h"
+
+#if !PX_DOXYGEN
+namespace physx
+{
+#endif
+
+/**
+\brief Describes the format of height field samples.
+@see PxHeightFieldDesc.format PxHeightFieldDesc.samples
+*/
+struct PxHeightFieldFormat
+{
+ enum Enum
+ {
+ /**
+ \brief Height field height data is 16 bit signed integers, followed by triangle materials.
+
+ Each sample is 32 bits wide arranged as follows:
+
+ \image html heightFieldFormat_S16_TM.png
+
+ 1) First there is a 16 bit height value.
+ 2) Next, two one byte material indices, with the high bit of each byte reserved for special use.
+ (so the material index is only 7 bits).
+ The high bit of material0 is the tess-flag.
+ The high bit of material1 is reserved for future use.
+
+ There are zero or more unused bytes before the next sample depending on PxHeightFieldDesc.sampleStride,
+ where the application may eventually keep its own data.
+
+ This is the only format supported at the moment.
+
+ @see PxHeightFieldDesc.format PxHeightFieldDesc.samples
+ */
+ eS16_TM = (1 << 0)
+ };
+};
+
+/**
+\brief Determines the tessellation of height field cells.
+@see PxHeightFieldDesc.format PxHeightFieldDesc.samples
+*/
+struct PxHeightFieldTessFlag
+{
+ enum Enum
+ {
+ /**
+ \brief This flag determines which way each quad cell is subdivided.
+
+ The flag lowered indicates subdivision like this: (the 0th vertex is referenced by only one triangle)
+
+ \image html heightfieldTriMat2.PNG
+
+ <pre>
+ +--+--+--+---> column
+ | /| /| /|
+ |/ |/ |/ |
+ +--+--+--+
+ | /| /| /|
+ |/ |/ |/ |
+ +--+--+--+
+ |
+ |
+ V row
+ </pre>
+
+ The flag raised indicates subdivision like this: (the 0th vertex is shared by two triangles)
+
+ \image html heightfieldTriMat1.PNG
+
+ <pre>
+ +--+--+--+---> column
+ |\ |\ |\ |
+ | \| \| \|
+ +--+--+--+
+ |\ |\ |\ |
+ | \| \| \|
+ +--+--+--+
+ |
+ |
+ V row
+ </pre>
+
+ @see PxHeightFieldDesc.format PxHeightFieldDesc.samples
+ */
+ e0TH_VERTEX_SHARED = (1 << 0)
+ };
+};
+
+
+/**
+\brief Enum with flag values to be used in PxHeightFieldDesc.flags.
+*/
+struct PxHeightFieldFlag
+{
+ enum Enum
+ {
+ /**
+ \brief Disable collisions with height field with boundary edges.
+
+ Raise this flag if several terrain patches are going to be placed adjacent to each other,
+ to avoid a bump when sliding across.
+
+ This flag is ignored in contact generation with sphere and capsule shapes.
+
+ @see PxHeightFieldDesc.flags
+ */
+ eNO_BOUNDARY_EDGES = (1 << 0)
+ };
+};
+
+/**
+\brief collection of set bits defined in PxHeightFieldFlag.
+
+@see PxHeightFieldFlag
+*/
+typedef PxFlags<PxHeightFieldFlag::Enum,PxU16> PxHeightFieldFlags;
+PX_FLAGS_OPERATORS(PxHeightFieldFlag::Enum,PxU16)
+
+#if !PX_DOXYGEN
+} // namespace physx
+#endif
+
+/** @} */
+#endif