| 1 | // |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions |
| 4 | // are met: |
| 5 | // * Redistributions of source code must retain the above copyright |
| 6 | // notice, this list of conditions and the following disclaimer. |
| 7 | // * Redistributions in binary form must reproduce the above copyright |
| 8 | // notice, this list of conditions and the following disclaimer in the |
| 9 | // documentation and/or other materials provided with the distribution. |
| 10 | // * Neither the name of NVIDIA CORPORATION nor the names of its |
| 11 | // contributors may be used to endorse or promote products derived |
| 12 | // from this software without specific prior written permission. |
| 13 | // |
| 14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY |
| 15 | // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 16 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 17 | // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 18 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 19 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 20 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 21 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 22 | // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 24 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | // |
| 26 | // Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved. |
| 27 | // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. |
| 28 | // Copyright (c) 2001-2004 NovodeX AG. All rights reserved. |
| 29 | |
| 30 | #ifndef GU_CONTACT_POINT_H |
| 31 | #define GU_CONTACT_POINT_H |
| 32 | |
| 33 | /** \addtogroup geomutils |
| 34 | @{ |
| 35 | */ |
| 36 | |
| 37 | #include "foundation/PxVec3.h" |
| 38 | |
| 39 | namespace physx |
| 40 | { |
| 41 | namespace Gu |
| 42 | { |
| 43 | |
| 44 | struct ContactPoint |
| 45 | { |
| 46 | /** |
| 47 | \brief The normal of the contacting surfaces at the contact point. |
| 48 | |
| 49 | For two shapes s0 and s1, the normal points in the direction that s0 needs to move in to resolve the contact with s1. |
| 50 | */ |
| 51 | PX_ALIGN(16, PxVec3 normal); |
| 52 | /** |
| 53 | \brief The separation of the shapes at the contact point. A negative separation denotes a penetration. |
| 54 | */ |
| 55 | PxReal separation; |
| 56 | |
| 57 | /** |
| 58 | \brief The point of contact between the shapes, in world space. |
| 59 | */ |
| 60 | PX_ALIGN(16, PxVec3 point); |
| 61 | |
| 62 | /** |
| 63 | \brief The max impulse permitted at this point |
| 64 | */ |
| 65 | PxReal maxImpulse; |
| 66 | |
| 67 | PX_ALIGN(16, PxVec3 targetVel); |
| 68 | |
| 69 | /** |
| 70 | \brief The static friction coefficient |
| 71 | */ |
| 72 | PxReal staticFriction; |
| 73 | |
| 74 | /** |
| 75 | \brief Material flags for this contact (eDISABLE_FRICTION, eDISABLE_STRONG_FRICTION). @see PxMaterialFlag |
| 76 | */ |
| 77 | PxU8 materialFlags; |
| 78 | |
| 79 | /** |
| 80 | \brief internal structure used for internal use only |
| 81 | */ |
| 82 | PxU16 forInternalUse; |
| 83 | |
| 84 | /** |
| 85 | \brief The surface index of shape 1 at the contact point. This is used to identify the surface material. |
| 86 | |
| 87 | \note This field is only supported by triangle meshes and heightfields, else it will be set to PXC_CONTACT_NO_FACE_INDEX. |
| 88 | \note This value must be directly after internalFaceIndex0 in memory |
| 89 | */ |
| 90 | |
| 91 | PxU32 internalFaceIndex1; |
| 92 | |
| 93 | /** |
| 94 | \brief The dynamic friction coefficient |
| 95 | */ |
| 96 | PxReal dynamicFriction; |
| 97 | /** |
| 98 | \brief The restitution coefficient |
| 99 | */ |
| 100 | PxReal restitution; |
| 101 | |
| 102 | }; |
| 103 | |
| 104 | } |
| 105 | |
| 106 | } |
| 107 | |
| 108 | /** @} */ |
| 109 | #endif |
| 110 | |