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| author | git perforce import user <a@b> | 2016-10-25 12:29:14 -0600 |
|---|---|---|
| committer | Sheikh Dawood Abdul Ajees <Sheikh Dawood Abdul Ajees> | 2016-10-25 18:56:37 -0500 |
| commit | 3dfe2108cfab31ba3ee5527e217d0d8e99a51162 (patch) | |
| tree | fa6485c169e50d7415a651bf838f5bcd0fd3bfbd /PhysX_3.4/Samples/SampleBase/TestMotionGenerator.cpp | |
| download | physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.tar.xz physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.zip | |
Initial commit:
PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617
[CL 21300167]
Diffstat (limited to 'PhysX_3.4/Samples/SampleBase/TestMotionGenerator.cpp')
| -rw-r--r-- | PhysX_3.4/Samples/SampleBase/TestMotionGenerator.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/PhysX_3.4/Samples/SampleBase/TestMotionGenerator.cpp b/PhysX_3.4/Samples/SampleBase/TestMotionGenerator.cpp new file mode 100644 index 00000000..bc5ef9b2 --- /dev/null +++ b/PhysX_3.4/Samples/SampleBase/TestMotionGenerator.cpp @@ -0,0 +1,108 @@ +// 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. + +#include "TestMotionGenerator.h" + +//----------------------------------------------------------------------------// +MotionGenerator::MotionGenerator() +: mLinear(0.0f), + mAngular(0.0f), + mTransform(PxTransform(PxIdentity)) +{ +} + +//----------------------------------------------------------------------------// +MotionGenerator::MotionGenerator(const PxTransform &pose, const PxVec3& linear, const PxVec3& angular) +: mLinear(linear), + mAngular(angular), + mTransform(pose) +{ +} + +//----------------------------------------------------------------------------// +PxVec3 MotionGenerator::getLinearVelocity( float time ) +{ + float t = time - (int(time) & ~0xf); + const float scale = 0.25f * PxPi; + + if(t > 0 && t < 2) + return -scale * sinf(t * 0.5f * PxPi) * mLinear; + + if(t > 8 && t < 10) + return +scale * sinf(t * 0.5f * PxPi) * mLinear; + + return PxVec3(0.0f); +} + +//----------------------------------------------------------------------------// +PxVec3 MotionGenerator::getAngularVelocity( float time ) +{ + float t = time - (int(time) & ~0xf); + + if(t > 4 && t < 6) + return +PxPi * mAngular; + + if(t > 12 && t < 14) + return -PxPi * mAngular; + + return PxVec3(0.0f); +} + +static PxQuat computeQuatFromAngularVelocity(const PxVec3 &omega) +{ + PxReal angle = omega.magnitude(); + + if (angle < 1e-5f) + { + return PxQuat(PxIdentity); + } else { + PxReal s = sin( 0.5f * angle ) / angle; + PxReal x = omega[0] * s; + PxReal y = omega[1] * s; + PxReal z = omega[2] * s; + PxReal w = cos( 0.5f * angle ); + return PxQuat(x,y,z,w); + } +} +//----------------------------------------------------------------------------// +const PxTransform& MotionGenerator::update(float time, float dt) +{ + PxVec3 dw = dt * getAngularVelocity(time); + PxQuat dq = computeQuatFromAngularVelocity(dw); + + mTransform.q = (dq * mTransform.q).getNormalized(); + mTransform.p += dt * getLinearVelocity(time); + + return mTransform; +} + + + + + |