1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
// 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) 2008-2020 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifdef __cplusplus
#pragma once
#include <foundation/Px.h>
#include "Simd.h"
namespace nv
{
namespace cloth
{
class DxCloth;
template <typename>
struct IterationState;
#else // __cplusplus
typedef unsigned int uint32_t;
typedef int int32_t;
#endif
static const uint32_t MaxParticlesInSharedMem = 1969;
struct DxPhaseConfig
{
float mStiffness;
float mStiffnessMultiplier;
float mCompressionLimit;
float mStretchLimit;
uint32_t mFirstConstraint;
uint32_t mNumConstraints;
};
struct DxConstraint
{
float mRestvalue;
#ifdef __cplusplus
uint16_t mFirstIndex;
uint16_t mSecondIndex;
#else
uint32_t mIndices; // 2x uint16_t
#endif
};
struct DxTether
{
#ifdef __cplusplus
DxTether(uint16_t, uint16_t);
uint16_t mAnchor;
uint16_t mLength;
#else
uint32_t mValue; // 2x uint16_t
#endif
};
// reference to cloth instance bulk data (POD)
// should not need frequent updates (stored on device)
struct DxClothData
{
#ifdef __cplusplus
DxClothData()
{
}
DxClothData(DxCloth&);
#endif
uint32_t mNumParticles;
uint32_t mParticlesOffset;
// fabric constraints
uint32_t mNumPhases;
uint32_t mPhaseConfigOffset;
uint32_t mConstraintOffset;
uint32_t mStiffnessOffset; //Offset inside per constraint stiffness buffer
uint32_t mNumTethers;
uint32_t mTetherOffset;
float mTetherConstraintScale;
uint32_t mNumTriangles;
uint32_t mStartTriangleOffset;
// motion constraint data
float mMotionConstraintScale;
float mMotionConstraintBias;
// collision
uint32_t mNumCapsules;
uint32_t mCapsuleOffset;
uint32_t mNumSpheres;
uint32_t mNumPlanes;
uint32_t mNumConvexes;
uint32_t mConvexMasksOffset;
uint32_t mNumCollisionTriangles;
uint32_t mNumVirtualParticleSetSizes;
uint32_t mEnableContinuousCollision; //bool stored in uint32_t for dx alignment
float mCollisionMassScale;
float mFrictionScale;
float mSelfCollisionDistance;
uint32_t mNumSelfCollisionIndices;
uint32_t mSelfCollisionIndicesOffset;
uint32_t mSelfCollisionParticlesOffset;
uint32_t mSelfCollisionDataOffset;
// sleep data
uint32_t mSleepTestInterval;
uint32_t mSleepAfterCount;
float mSleepThreshold;
};
// per-frame data (stored in pinned memory)
struct DxFrameData
{
#ifdef __cplusplus
DxFrameData()
{
} // not initializing pointers to 0!
explicit DxFrameData(DxCloth&, uint32_t numSharedPositions, const IterationState<Simd4f>&, uint32_t firstIteration);
#endif
bool mDeviceParticlesDirty;
// number of particle copies that fit in shared memory (0, 1, or 2)
uint32_t mNumSharedPositions;
// iteration data
float mIterDt;
uint32_t mFirstIteration;
uint32_t mNumIterations;
float mTetherConstraintStiffness;
// wind data
float mDragCoefficient;
float mLiftCoefficient;
float mFluidDensity;
float mRotation[9];
// motion constraint data
float mMotionConstraintStiffness;
uint32_t mStartMotionConstrainsOffset;
uint32_t mTargetMotionConstrainsOffset;
// separation constraint data
uint32_t mStartSeparationConstrainsOffset;
uint32_t mTargetSeparationConstrainsOffset;
// particle acceleration data
uint32_t mParticleAccelerationsOffset;
uint32_t mStartSphereOffset;
uint32_t mTargetSphereOffset;
uint32_t mStartCollisionPlaneOffset;
uint32_t mTargetCollisionPlaneOffset;
uint32_t mStartCollisionTrianglesOffset;
uint32_t mTargetCollisionTrianglesOffset;
float mSelfCollisionStiffness;
float mParticleBounds[6]; // maxX, -minX, maxY, ...
uint32_t mSleepPassCounter;
uint32_t mSleepTestCounter;
float mStiffnessExponent;
uint32_t mRestPositionsOffset;
bool mInitSelfCollisionData;
};
// per-iteration data (stored in pinned memory)
struct DxIterationData
{
#ifdef __cplusplus
DxIterationData()
{
} // not initializing!
explicit DxIterationData(const IterationState<Simd4f>&);
#endif
float mIntegrationTrafo[24];
float mWind[3];
uint32_t mIsTurning;
};
#ifdef __cplusplus
} // namespace cloth
} // namespace nv
#endif
|