118 lines
4.5 KiB
C++
118 lines
4.5 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_NXHEIGHTFIELDSAMPLE
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#define PX_PHYSICS_NXHEIGHTFIELDSAMPLE
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/** \addtogroup geomutils
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@{ */
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#include "common/PxPhysXCommon.h"
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#include "foundation/PxBitAndData.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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/**
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\brief Special material index values for height field samples.
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@see PxHeightFieldSample.materialIndex0 PxHeightFieldSample.materialIndex1
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*/
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struct PxHeightFieldMaterial
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{
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enum Enum
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{
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eHOLE = 127, //!< A material indicating that the triangle should be treated as a hole in the mesh.
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};
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};
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/**
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\brief Heightfield sample format.
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This format corresponds to the #PxHeightFieldFormat member PxHeightFieldFormat::eS16_TM.
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An array of heightfield samples are used when creating a PxHeightField to specify
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the elevation of the heightfield points. In addition the material and tessellation of the adjacent
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triangles are specified.
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@see PxHeightField PxHeightFieldDesc PxHeightFieldDesc.samples
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*/
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struct PxHeightFieldSample
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{
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/**
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\brief The height of the heightfield sample
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This value is scaled by PxHeightFieldGeometry::heightScale.
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@see PxHeightFieldGeometry
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*/
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PxI16 height;
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/**
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\brief The triangle material index of the quad's lower triangle + tesselation flag
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An index pointing into the material table of the shape which instantiates the heightfield.
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This index determines the material of the lower of the quad's two triangles (i.e. the quad whose
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upper-left corner is this sample, see the Guide for illustrations).
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Special values of the 7 data bits are defined by PxHeightFieldMaterial
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The tesselation flag specifies which way the quad is split whose upper left corner is this sample.
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If the flag is set, the diagonal of the quad will run from this sample to the opposite vertex; if not,
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it will run between the other two vertices (see the Guide for illustrations).
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@see PxHeightFieldGeometry materialIndex1 PxShape.setmaterials() PxShape.getMaterials()
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*/
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PxBitAndByte materialIndex0;
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PX_CUDA_CALLABLE PX_FORCE_INLINE PxU8 tessFlag() const { return materialIndex0.isBitSet() ? 1 : 0; } // PT: explicit conversion to make sure we don't break the code
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PX_CUDA_CALLABLE PX_FORCE_INLINE void setTessFlag() { materialIndex0.setBit(); }
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PX_CUDA_CALLABLE PX_FORCE_INLINE void clearTessFlag() { materialIndex0.clearBit(); }
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/**
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\brief The triangle material index of the quad's upper triangle + reserved flag
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An index pointing into the material table of the shape which instantiates the heightfield.
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This index determines the material of the upper of the quad's two triangles (i.e. the quad whose
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upper-left corner is this sample, see the Guide for illustrations).
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@see PxHeightFieldGeometry materialIndex0 PxShape.setmaterials() PxShape.getMaterials()
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*/
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PxBitAndByte materialIndex1;
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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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