Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 279 insertions, 0 deletions

diff --git a/PhysX_3.4/Snippets/SnippetSplitFetchResults/SnippetSplitFetchResults.cpp b/PhysX_3.4/Snippets/SnippetSplitFetchResults/SnippetSplitFetchResults.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.  
+
+// ****************************************************************************
+// This snippet illustrates the use of simple contact reports.
+//
+// It defines a filter shader function that requests touch reports for 
+// all pairs, and a contact callback function that saves the contact points.  
+// It configures the scene to use this filter and callback, and prints the 
+// number of contact reports each frame. If rendering, it renders each 
+// contact as a line whose length and direction are defined by the contact 
+// impulse.
+// 
+// ****************************************************************************
+
+#include <vector>
+
+#include "PxPhysicsAPI.h"
+
+#include "../SnippetCommon/SnippetPrint.h"
+#include "../SnippetCommon/SnippetPVD.h"
+#include "../SnippetUtils/SnippetUtils.h"
+#include "PsAtomic.h"
+#include "task/PxTask.h"
+
+#define PARALLEL_CALLBACKS 1
+
+
+using namespace physx;
+
+
+PxDefaultAllocator		gAllocator;
+PxDefaultErrorCallback	gErrorCallback;
+
+PxFoundation*			gFoundation = NULL;
+PxPhysics*				gPhysics = NULL;
+
+PxDefaultCpuDispatcher*	gDispatcher = NULL;
+PxScene*				gScene = NULL;
+PxMaterial*				gMaterial = NULL;
+PxPvd*                  gPvd = NULL;
+
+const PxI32 maxCount = 10000;
+
+PxI32 gSharedIndex = 0;
+
+PxVec3* gContactPositions;
+PxVec3* gContactImpulses;
+PxVec3* gContactVertices;
+
+class CallbackFinishTask : public PxLightCpuTask
+{
+	SnippetUtils::Sync* mSync;
+public:
+	CallbackFinishTask(){ mSync = SnippetUtils::syncCreate(); }
+
+	virtual void release()
+	{
+		PxLightCpuTask::release();
+		SnippetUtils::syncSet(mSync);
+	}
+
+	void reset() { SnippetUtils::syncReset(mSync); }
+
+	void wait() { SnippetUtils::syncWait(mSync); }
+
+	virtual void run() { /*Do nothing - release the sync in the release method for thread-safety*/}
+
+	virtual const char* getName() const { return "CallbackFinishTask"; }
+} 
+callbackFinishTask;
+
+
+PxFilterFlags contactReportFilterShader(PxFilterObjectAttributes attributes0, PxFilterData filterData0,
+	PxFilterObjectAttributes attributes1, PxFilterData filterData1,
+	PxPairFlags& pairFlags, const void* constantBlock, PxU32 constantBlockSize)
+{
+	PX_UNUSED(attributes0);
+	PX_UNUSED(attributes1);
+	PX_UNUSED(filterData0);
+	PX_UNUSED(filterData1);
+	PX_UNUSED(constantBlockSize);
+	PX_UNUSED(constantBlock);
+
+	// all initial and persisting reports for everything, with per-point data
+	pairFlags = PxPairFlag::eSOLVE_CONTACT | PxPairFlag::eDETECT_DISCRETE_CONTACT
+		| PxPairFlag::eNOTIFY_TOUCH_FOUND
+		| PxPairFlag::eNOTIFY_TOUCH_PERSISTS
+		| PxPairFlag::eNOTIFY_CONTACT_POINTS;
+	return PxFilterFlag::eDEFAULT;
+}
+
+class ContactReportCallback : public PxSimulationEventCallback
+{
+	void onConstraintBreak(PxConstraintInfo* constraints, PxU32 count)	{ PX_UNUSED(constraints); PX_UNUSED(count); }
+	void onWake(PxActor** actors, PxU32 count)							{ PX_UNUSED(actors); PX_UNUSED(count); }
+	void onSleep(PxActor** actors, PxU32 count)							{ PX_UNUSED(actors); PX_UNUSED(count); }
+	void onTrigger(PxTriggerPair* pairs, PxU32 count)					{ PX_UNUSED(pairs); PX_UNUSED(count); }
+	void onAdvance(const PxRigidBody*const*, const PxTransform*, const PxU32) {}
+	void onContact(const PxContactPairHeader& pairHeader, const PxContactPair* pairs, PxU32 nbPairs)
+	{
+		PX_UNUSED((pairHeader));
+		//Maximum of 64 vertices can be produced by contact gen
+		PxContactPairPoint contactPoints[64];
+
+		for (PxU32 i = 0; i<nbPairs; i++)
+		{
+			PxU32 contactCount = pairs[i].contactCount;
+			if (contactCount)
+			{
+				pairs[i].extractContacts(&contactPoints[0], contactCount);
+
+				PxI32 startIdx = physx::shdfnd::atomicAdd(&gSharedIndex, int32_t(contactCount));
+				for (PxU32 j = 0; j<contactCount; j++)
+				{
+					gContactPositions[startIdx+j] = contactPoints[j].position;
+					gContactImpulses[startIdx+j] = contactPoints[j].impulse;
+					gContactVertices[2*(startIdx + j)] = contactPoints[j].position;
+					gContactVertices[2*(startIdx + j) + 1] = contactPoints[j].position + contactPoints[j].impulse * 0.1f;
+				}
+			}
+		}
+	}
+};
+
+ContactReportCallback gContactReportCallback;
+
+void createStack(const PxTransform& t, PxU32 size, PxReal halfExtent)
+{
+	PxShape* shape = gPhysics->createShape(PxBoxGeometry(halfExtent, halfExtent, halfExtent), *gMaterial);
+	for (PxU32 i = 0; i<size; i++)
+	{
+		for (PxU32 j = 0; j<size - i; j++)
+		{
+			PxTransform localTm(PxVec3(PxReal(j * 2) - PxReal(size - i), PxReal(i * 2 + 1), 0) * halfExtent);
+			PxRigidDynamic* body = gPhysics->createRigidDynamic(t.transform(localTm));
+			body->attachShape(*shape);
+			PxRigidBodyExt::updateMassAndInertia(*body, 10.0f);
+			gScene->addActor(*body);
+		}
+	}
+	shape->release();
+}
+
+void initPhysics(bool interactive)
+{
+	PX_UNUSED(interactive);
+
+	gContactPositions = new PxVec3[maxCount];
+	gContactImpulses = new PxVec3[maxCount];
+	gContactVertices = new PxVec3[2*maxCount];
+
+	gFoundation = PxCreateFoundation(PX_FOUNDATION_VERSION, gAllocator, gErrorCallback);
+	gPvd = PxCreatePvd(*gFoundation);
+	PxPvdTransport* transport = PxDefaultPvdSocketTransportCreate(PVD_HOST, 5425, 10);
+	gPvd->connect(*transport, PxPvdInstrumentationFlag::eALL);
+	gPhysics = PxCreatePhysics(PX_PHYSICS_VERSION, *gFoundation, PxTolerancesScale(), true, gPvd);
+	PxInitExtensions(*gPhysics, gPvd);
+	PxU32 numCores = SnippetUtils::getNbPhysicalCores();
+	gDispatcher = PxDefaultCpuDispatcherCreate(numCores == 0 ? 0 : numCores - 1);
+	PxSceneDesc sceneDesc(gPhysics->getTolerancesScale());
+	sceneDesc.cpuDispatcher = gDispatcher;
+	sceneDesc.gravity = PxVec3(0, -9.81f, 0);
+	sceneDesc.filterShader = contactReportFilterShader;
+	sceneDesc.simulationEventCallback = &gContactReportCallback;
+	gScene = gPhysics->createScene(sceneDesc);
+
+	PxPvdSceneClient* pvdClient = gScene->getScenePvdClient();
+	if (pvdClient)
+	{
+		pvdClient->setScenePvdFlag(PxPvdSceneFlag::eTRANSMIT_CONSTRAINTS, true);
+	}
+	gMaterial = gPhysics->createMaterial(0.5f, 0.5f, 0.6f);
+
+	PxRigidStatic* groundPlane = PxCreatePlane(*gPhysics, PxPlane(0, 1, 0, 0), *gMaterial);
+	gScene->addActor(*groundPlane);
+
+	const PxU32 nbStacks = 50;
+
+	for (PxU32 i = 0; i < nbStacks; ++i)
+	{
+		createStack(PxTransform(PxVec3(0, 3.0f, 10.f - 5.f*i)), 5, 2.0f);
+	}
+}
+
+void stepPhysics(bool interactive)
+{
+	PX_UNUSED(interactive);
+	gSharedIndex = 0;
+
+	gScene->simulate(1.0f / 60.0f);
+
+#if !PARALLEL_CALLBACKS
+	gScene->fetchResults(true);
+#else
+	//Call fetchResultsStart. Get the set of pair headers
+	const PxContactPairHeader* pairHeader;
+	PxU32 nbContactPairs;
+	gScene->fetchResultsStart(pairHeader, nbContactPairs, true);
+
+	//Set up continuation task to be run after callbacks have been processed in parallel
+	callbackFinishTask.setContinuation(*gScene->getTaskManager(), NULL);
+	callbackFinishTask.reset();
+
+	//process the callbacks
+	gScene->processCallbacks(&callbackFinishTask);
+
+	callbackFinishTask.removeReference();
+
+	callbackFinishTask.wait();
+	
+	gScene->fetchResultsFinish();
+#endif
+
+	printf("%d contact reports\n", PxU32(gSharedIndex));
+}
+
+void cleanupPhysics(bool interactive)
+{
+	PX_UNUSED(interactive);
+	gScene->release();
+	gDispatcher->release();
+	PxCloseExtensions();
+
+	gPhysics->release();
+	PxPvdTransport* transport = gPvd->getTransport();
+	gPvd->release();
+	transport->release();
+
+	gFoundation->release();
+
+	delete gContactPositions;
+	delete gContactImpulses;
+	delete gContactVertices;
+
+	printf("SnippetSplitFetchResults done.\n");
+}
+
+int snippetMain(int, const char*const*)
+{
+#ifdef RENDER_SNIPPET
+	extern void renderLoop();
+	renderLoop();
+#else
+	initPhysics(false);
+	for (PxU32 i = 0; i<250; i++)
+		stepPhysics(false);
+	cleanupPhysics(false);
+#endif
+
+	return 0;
+}
+