Blast 1.1 release (windows / linux)

see docs/release_notes.txt for details

1 files changed, 229 insertions, 0 deletions

diff --git a/sdk/extensions/physx/source/physics/NvBlastExtPxStressSolverImpl.cpp b/sdk/extensions/physx/source/physics/NvBlastExtPxStressSolverImpl.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) 2016-2017 NVIDIA Corporation. All rights reserved.
+
+
+#include "NvBlastExtPxStressSolverImpl.h"
+#include "NvBlastExtPxAsset.h"
+#include "NvBlastExtPxFamily.h"
+#include "NvBlastExtPxActor.h"
+#include "NvBlastAssert.h"
+#include "NvBlastIndexFns.h"
+
+#include "NvBlastTkAsset.h"
+#include "NvBlastTkActor.h"
+#include "NvBlastTkFamily.h"
+
+#include "PxScene.h"
+#include "PxRigidDynamic.h"
+
+#define USE_PHYSX_NODE_INFO 1
+
+
+namespace Nv
+{
+namespace Blast
+{
+
+using namespace physx;
+
+
+ExtPxStressSolverImpl::ExtPxStressSolverImpl(ExtPxFamily& family, ExtStressSolverSettings settings)
+	: m_family(family)
+{
+	NvBlastFamily* familyLL = const_cast<NvBlastFamily*>(family.getTkFamily().getFamilyLL());
+	NVBLAST_ASSERT(familyLL);
+	m_solver = ExtStressSolver::create(*familyLL, settings);
+
+	const TkAsset* tkAsset = m_family.getTkFamily().getAsset();
+	const ExtPxAsset& asset = m_family.getPxAsset();
+	const ExtPxChunk* chunks = asset.getChunks();
+	const ExtPxSubchunk* subChunks = asset.getSubchunks();
+	const NvBlastSupportGraph graph = tkAsset->getGraph();
+	const uint32_t chunkCount = tkAsset->getChunkCount();
+
+	TkActor* tkActor;
+	m_family.getTkFamily().getActors(&tkActor, 1);
+	const float* bondHealths = tkActor->getBondHealths();
+
+#if USE_PHYSX_NODE_INFO
+	// traverse graph and fill node info,
+	// essentially it does the same as m_solver->setAllNodesInfoFromLL() but fills mass, volume, transform from physx
+	// and it also uses ExtPxChunk isStatic flag in addition to 'world' node in LL
+	for (uint32_t node0 = 0; node0 < graph.nodeCount; ++node0)
+	{
+		uint32_t chunkIndex0 = graph.chunkIndices[node0];
+		const ExtPxChunk* chunk0 = chunkIndex0 < chunkCount ? &chunks[chunkIndex0] : nullptr;
+		bool isChunkStatic = true;
+
+		if (chunk0)
+		{
+			isChunkStatic = chunk0->isStatic;
+			for (uint32_t adjacencyIndex = graph.adjacencyPartition[node0]; adjacencyIndex < graph.adjacencyPartition[node0 + 1]; adjacencyIndex++)
+			{
+				uint32_t bondIndex = graph.adjacentBondIndices[adjacencyIndex];
+				if (bondHealths[bondIndex] <= 0.0f)
+					continue;
+				uint32_t node1 = graph.adjacentNodeIndices[adjacencyIndex];
+				uint32_t chunkIndex1 = graph.chunkIndices[node1];
+				if (chunkIndex1 < chunkCount)
+				{
+					const ExtPxChunk& chunk1 = chunks[chunkIndex1];
+
+					if (chunk1.subchunkCount == 0 || chunk1.isStatic)
+					{
+						isChunkStatic |= chunk1.isStatic;
+						continue;
+					}
+				}
+				else
+				{
+					isChunkStatic = true;
+					break;
+				}
+			}
+		}
+
+		// fill node info
+		float mass;
+		float volume;
+		PxVec3 localPos;
+		if (chunk0 && chunk0->subchunkCount > 0)
+		{
+			const ExtPxSubchunk& subChunk = subChunks[chunk0->firstSubchunkIndex];
+			PxVec3 localCenterOfMass;
+			PxMat33 intertia;
+			PxVec3 scale = subChunk.geometry.scale.scale;
+			subChunk.geometry.convexMesh->getMassInformation(mass, intertia, localCenterOfMass);
+			mass *= scale.x * scale.y * scale.z;
+			const PxTransform& chunk0LocalTransform = subChunk.transform;
+			localPos = chunk0LocalTransform.transform(localCenterOfMass);
+			volume = mass / 1.0f; // unit density
+		}
+		else
+		{
+			mass = 0.0f;
+			volume = 0.0f;
+			localPos = PxVec3(PxZero);
+			isChunkStatic = true;
+		}
+		m_solver->setNodeInfo(node0, mass, volume, localPos, isChunkStatic);
+	}
+#else
+	m_solver->setAllNodesInfoFromLL();
+#endif
+
+	// notify initial actor's created
+	InlineArray<ExtPxActor*, 4>::type actors;;
+	actors.resize(m_family.getActorCount());
+	m_family.getActors(actors.begin(), actors.size());
+	for (const auto actor : actors)
+	{
+		onActorCreated(m_family, *actor);
+	}
+
+	m_family.subscribe(*this);
+}
+
+ExtPxStressSolverImpl::~ExtPxStressSolverImpl()
+{
+	m_family.unsubscribe(*this);
+	m_solver->release();
+}
+
+ExtPxStressSolver* ExtPxStressSolver::create(ExtPxFamily& family, ExtStressSolverSettings settings)
+{
+	return NVBLAST_NEW(ExtPxStressSolverImpl) (family, settings);
+}
+
+void ExtPxStressSolverImpl::release()
+{
+	NVBLAST_DELETE(this, ExtPxStressSolverImpl);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//													Update Wrapper
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void ExtPxStressSolverImpl::update(bool doDamage)
+{
+	for (auto it = m_actors.getIterator(); !it.done(); ++it)
+	{
+		const ExtPxActor* actor = *it;
+
+		PxRigidDynamic& rigidDynamic = actor->getPhysXActor();
+		const bool isStatic = rigidDynamic.getRigidBodyFlags() & PxRigidBodyFlag::eKINEMATIC;
+		if (isStatic)
+		{
+			PxVec3 gravity = rigidDynamic.getScene()->getGravity();
+			PxVec3 localGravity = rigidDynamic.getGlobalPose().rotateInv(gravity);
+
+			m_solver->addGravityForce(*actor->getTkActor().getActorLL(), localGravity);
+		}
+		else
+		{
+			PxVec3 localCenterMass = rigidDynamic.getCMassLocalPose().p;
+			PxVec3 localAngularVelocity = rigidDynamic.getGlobalPose().rotateInv(rigidDynamic.getAngularVelocity());
+			m_solver->addAngularVelocity(*actor->getTkActor().getActorLL(), localCenterMass, localAngularVelocity);
+		}
+	}
+
+	m_solver->update();
+
+	if (doDamage && m_solver->getOverstressedBondCount() > 0)
+	{
+		NvBlastFractureBuffers commands;
+		m_solver->generateFractureCommands(commands);
+		if (commands.bondFractureCount > 0)
+		{
+			m_family.getTkFamily().applyFracture(&commands);
+		}
+	}
+}
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//													Actors
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void ExtPxStressSolverImpl::onActorCreated(ExtPxFamily& /*family*/, ExtPxActor& actor)
+{
+	if (m_solver->notifyActorCreated(*actor.getTkActor().getActorLL()))
+	{
+		m_actors.insert(&actor);
+	}
+}
+
+void ExtPxStressSolverImpl::onActorDestroyed(ExtPxFamily& /*family*/, ExtPxActor& actor)
+{
+	m_solver->notifyActorDestroyed(*actor.getTkActor().getActorLL());
+	m_actors.erase(&actor);
+}
+
+
+} // namespace Blast
+} // namespace Nv