Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 88 insertions, 0 deletions

diff --git a/PhysX_3.4/Source/GeomUtils/src/intersection/GuIntersectionSphereBox.cpp b/PhysX_3.4/Source/GeomUtils/src/intersection/GuIntersectionSphereBox.cpp
new file mode 100644
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+++ b/PhysX_3.4/Source/GeomUtils/src/intersection/GuIntersectionSphereBox.cpp
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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.  
+
+#include "GuIntersectionSphereBox.h"
+#include "GuSphere.h"
+#include "GuBox.h"
+
+using namespace physx;
+
+bool Gu::intersectSphereBox(const Sphere& sphere, const Box& box)
+{
+	const PxVec3 delta = sphere.center - box.center;
+	PxVec3 dRot = box.rot.transformTranspose(delta);	//transform delta into OBB body coords. (use method call!)
+
+	//check if delta is outside AABB - and clip the vector to the AABB.
+	bool outside = false;
+
+	if(dRot.x < -box.extents.x)
+	{ 
+		outside = true; 
+		dRot.x = -box.extents.x;
+	}
+	else if(dRot.x >  box.extents.x)
+	{ 
+		outside = true; 
+		dRot.x = box.extents.x;
+	}
+
+	if(dRot.y < -box.extents.y)
+	{ 
+		outside = true; 
+		dRot.y = -box.extents.y;
+	}
+	else if(dRot.y >  box.extents.y)
+	{ 
+		outside = true; 
+		dRot.y = box.extents.y;
+	}
+
+	if(dRot.z < -box.extents.z)
+	{ 
+		outside = true; 
+		dRot.z = -box.extents.z;
+	}
+	else if(dRot.z >  box.extents.z)
+	{ 
+		outside = true; 
+		dRot.z = box.extents.z;
+	}
+
+	if(outside)	//if clipping was done, sphere center is outside of box.
+	{
+		const PxVec3 clippedDelta = box.rot.transform(dRot);	//get clipped delta back in world coords.
+
+		const PxVec3 clippedVec = delta - clippedDelta;			  //what we clipped away.	
+		const PxReal lenSquared = clippedVec.magnitudeSquared();
+		const PxReal radius = sphere.radius;
+		if(lenSquared > radius * radius)	// PT: objects are defined as closed, so we return 'true' in case of equality
+			return false;	//disjoint
+	}
+	return true;
+}