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GPU PhysX in Metro: Last Light

GPU PhysX in Metro: Last Light

Comparison video, review and benchmark

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The Evolution of PhysX SDK, performance-wise

The Evolution of PhysX SDK, performance-wise

PhysX 2.8 vs PhysX 3.x vs Bullet

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Introduction to Position Based Fluids

Introduction to Position Based Fluids

Welcome the new fluid simulaton algorithm

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APEX SDK 1.3.2 is available

with 3 comments

Following the PhysX SDK 3.3.2 release, updated APEX SDK 1.3.2 is available for download.

Despite the minor version number, APEX 1.3.2 includes numerous additions to Destruction and Particles modules.

APEX SDK 1.3.2: Release Notes

APEX Framework 1.3.2

  • General:
    • Added NVTX profiling support for non-release builds. Traces can be captured using Parallel Nsight Analysis Tools. NVTX is supported only for Windows and Android.
  • Optimizations:
    • Added ability to change render resource lock behavior or disable locking altogether, to improve performance. The setting is per module. See NxModule::setRenderLockMode and NxApexRenderLockMode.
    • Added ability to disable potentially expensive stat collection if it’s not needed. See NxApexSDK::setEnableApexStats.
  • Fixes:
    • Fixed crash if application creates APEX SDK after already connecting to PVD.
  • Read the rest of this entry »

    Written by Zogrim

    October 17th, 2014 at 4:03 pm

    Posted in PhysX SDK, PhysX Tools

    Tagged with ,

    PhysX SDK 3.3.2 arrives, adds GPU acceleration support on Linux

    with 3 comments

    New PhysX SDK 3.3.2 release is available for download.

    nvidia-physx

    Among various bug-fixes, this version also features support for GPU acceleration on Linux platform (CUDA-capable devices only) and reworked documentation.

    PhysX SDK 3.3.2: Release Notes

    GENERAL

  • Added:
    • The PhysXCommon/64.dll, nvcuda.dll and PhysXUpdateLoader/64.dll are loaded and checked for the NVIDIA Corporation digital signature. The signature is expected on all NVIDIA Corporation provided dlls. The application will exit if the signature check fails.
    • Added the PxDefaultBufferedProfiler extension for simplified SDK profile events extraction.
    • PxSceneDesc::sanityBounds allows a bounding box to be set for validating the position coordinates of inserted or updated rigid actors and articulations.
    • Linux: Now supports GPU PhysX.
    • Added set/getRunProfiled() for PxDefaultCpuDispatcher to control profiling at task level.
    • Android: Support for x86 based devices was added.
    • PxProfileEventHandler::durationToNanoseconds() added. Translates event duration in timestamp (cycles) into nanoseconds.
    • Added SnippetProfileZone to show how to retrieve profiling information.
    • Added SnippetCustomJoint to better illustrate custom joint implementation, and removed SnippetExtension.
    • Added SnippetStepper to demonstrate kinematic updates while substepping with tasks.
  • Fixed:
    • Significant revision of the user’s guide. Both structure and most content have been modified.
    • PxTask::runProfiled() now takes threadId as a parameter.
    • The static pruner now issues a performance warning in debug and checked configurations when a tree rebuild occurs and the tree is not empty.
    • PxSceneDesc::staticStructure now defaults to PxPruningStructure::eDYNAMIC_AABB_TREE.
    • Linux: Switched to shared libraries.
    • Profile zone event names changed to match function calls.
    • Overlapping read/write errors will now issue a PxErrorCode::eINVALID_OPERATION rather than PxErrorCode::eDEBUG_INFO.
    • Improved SnippetToleranceScale to better demonstrate the intended use case.
    • Increased 126 characters limit for warnings on unix platforms, 1k limit on all platforms.
    • PhysXCommon dll load within PhysX dll now respects dll name. Please see the manual’s PhysXCommon DLL load section.
    • Fixed search function of user’s guide.
    • Foundation math classes now have in-place arithmetic operators (+= etc).
  • Deprecated:
    • Indexing operators taking signed integers in PxVec3, PxVec4, PxMat33, PxMat44, PxStrideIterator have been deprecated.
  • Read the rest of this entry »

    Written by Zogrim

    October 11th, 2014 at 4:13 pm

    Posted in PhysX SDK

    Tagged with , , ,

    PhysX plug-ins updated to version 3.0.1

    with one comment

    NVIDIA has released an updated 3.0.1 version of the PhysX DCC plug-ins for 3ds Max and Maya.

    nvidia-physx

    PhysX Plug-in 3.0.1 for 3ds Max: Release Notes

    • New Features
      • Upgrade to APEX 1.3.1, SDK 3.3.1
      • Add SDK 2.x back for mCloth and mParticles. Users can only simulate mCloth and mParticles in 2.x mode. And APEX will not be supported when 2.x mode. It means users cannot edit and simulate Clothing and Destruction assets when using 2.x.
    • Fixes
      • Fix: crash which happens when quiting 3ds Max with a biped Ragdoll scene.
      • Fix: bug that Clothing simulates wrong at first frame when system scale is not 1.
      • Fix: bug with APEX Debug Visualizer parameters.
      • Fix: bug that when LOD1 is default LOD, it may not allow to add another new LOD.
      • Fix: bug that Physical Mesh rollout could be too small when it is Custom type.
      • Fix: few bugs with Physical Mesh rollout of Clothing Modifier.
      • Fix: crash when loading .Rag files.
      • Fix: SDK warning message when it fails to output on unicode build because missing one virtual function.
      • Fix: Clothing Velocity control via Script.
      • Improve the simulation of dynamic ragdolls.
      • Make a switch to SDK 3 if creating APEX objects.
      • Support SkinMapActual for APEX Clothing visulaizer.
      • Improve sub-material handling based on Bug #9515: Getting multiple materials when coming back from PhysXLab to 3ds Max.
      • Make Destruction exports Tangent and Binormal with UE3 and APEX 1.3
      • Avoid extra scale (in PhysX Panel dialog) to be zero.
      • Improve debug render scale handling.

    Read the rest of this entry »

    Written by Zogrim

    April 11th, 2014 at 12:11 am

    Posted in PhysX Tools

    Tagged with , , ,

    Updated APEX SDK 1.3.1 released

    without comments

    New APEX 1.3.1 release is now available for public download.

    Update: APEX SDK 1.3.2 is available

    1.3.1 version features support for latest PhysX SDK 3.3.1 and includes a set of bug-fixes and minor new features.

    APEX SDK 1.3.1: Release Notes

    APEX Framework 1.3.1

  • General:
    • Added VS2012 support for source distributions with PhysX 3.x.
    • Assertions are now enabled in the checked configuration.
    • Added NxApexActor::setEnableDebugVisualization to selectively disable debug visualization on particular actors.
    • The NxUserRenderResourceManager’s surface buffer create and release virtual methods must be implemented by the user. They are only used by particular turbulence features, so if turbulence isn’t being used the implementation can be empty.
    • Starting with NVIDIA R302 drivers, application developers can direct the Optimus driver at runtime to use the High Performance Graphics to render any application – even those applications for which there is no existing application profile. The APEX samples now makes use of this “NvOptimusEnablement” feature to enable High Performance Graphics by default.
    • Debug info added to all PS4 builds except release builds.
    • Android sample builds now generate an APK. This requires some extra defines for Java and Ant. See the Android examples section of the sample documentation for details.
  • Fixes:
    • Fixed rare Named Resource Provider failure to find resource.
    • Using allocViewMatrix(ViewMatrixType::USER_CUSTOMIZED) now works.
    • Cleaned up several PS4 compiler warnings.
  • Read the rest of this entry »

    Written by Zogrim

    April 10th, 2014 at 11:04 am

    Posted in PhysX Tools

    Tagged with ,

    PhysX SDK 3.3.1 is available

    without comments

    NVIDIA has released minor 3.3.1 update for PhysX SDK 3.3 branch.

    Update: PhysX SDK 3.3.2 released

    nvidia-physx

    PhysX SDK 3.3.1 release is mostly focused on various bug-fixes and optimizations.

    PhysX SDK 3.3.1: Release Notes

    GENERAL

  • Added:
    • The friction model can now be changed after scene instantiation with PxScene::setFrictionType. The friction model can also be queried with PxScene::getFrictionType.
  • Changed:
    • PxDefaultSimulationFilterShader now supports particles and cloth as well.
    • PxSimulationFilterCallback: the provided actor and shape pointers are now defined as const. Note: this is no behavior change, it was never allowed to write to those objects from within the callback.
    • The PxTriangleMeshFlag::eHAS_16BIT_TRIANGLE_INDICES and PxTriangleMeshFlag::eHAS_ADJACENCY_INFO enums have been deprecated. Please use PxTriangleMeshFlag::e16_BIT_INDICES and PxTriangleMeshFlag::eADJACENCY_INFO instead.
    • Removed following functions from the API for platforms which do not support CUDA: PxGetSuggestedCudaDeviceOrdinal, PxCreateCudaContextManager, PxLoadPhysxGPUModule.
    • PxShape::getMaterialFromInternalFaceIndex will now return a NULL pointer and produce a warning for input faceIndex value of 0xFFFFffff. This change only applies to mesh and heightfield shapes.
  • Fixed:
    • Fixed concurrency issue on windows. Calling PxScene::simulate on multiple scenes concurrently may have caused a deadlock. This only happened if the scenes shared a single PxCpuDispatcher and the dispatcher was configured to use one worker thread only.
  • Read the rest of this entry »

    Written by Zogrim

    April 10th, 2014 at 10:26 am

    Posted in PhysX SDK

    Tagged with , ,

    Unreal Engine 4 is now available for developers

    with 2 comments

    Epic Games has announced, that their highly anticipated Unreal Engine 4 is now available for developers, with a very friendly licensing model (which even includes full C++ source code) – only $19 per month, plus 5% of gross revenue from any commercial product.

    Advanced physics system in Unreal Engine 4 is based on PhysX 3 (SDK 3.3 already or very soon, as far as we know), including out-of-the-box integration with APEX Clothing and APEX Destruction modules.

    Written by Zogrim

    March 19th, 2014 at 10:55 pm

    Warface will adopt VisualFX and PhysX effects

    with 4 comments

    Warface, free-to-play online shooter, powered by CryEngine and developed by Crytek, will soon be enhanced with GPU accelerated PhysX and VisualFX effects – according to NVIDIA.

    PhysX (APEX) Particles module will be used for impact debris effects on “concrete, grass, soil, wood, sand and the like” surfaces, while NVIDIA (APEX) Turbulence module will provide “simulation and rendering of physically correct smoke, dust and other fluid dynamics effects“. As the result:

    Engine exhaust, smoke from explosions, dust from falling debris and spinning helicopter rotors can interact with the rest of the environment, both static and dynamic. Combined with PhysX particles, Turbulence provides a 1-2 punch of dynamism and realism.

    As interesting note, it seems that NVIDIA as expanding the strategy of providing GPU accelerated PhysX effects in titles without native (core-physics) PhysX SDK integration, which potentially means that they can be adopted by any game or engine. Combined new core-PhysX integrations (such as UE4 with default PhysX 3, Clothing and Destruction implementation), such strategy can yield positive results on the amount of GPU PhysX titles.

    Written by Zogrim

    March 19th, 2014 at 7:56 pm

    Unity 5 announced, incorporates PhysX SDK 3.3

    with 2 comments

    Unity Technologies has announced new version of their popular Unity game engine – Unity 5.

    Among other features, Unity 5 will include a radical update for the built-in physics engine, as the current (and rather old) PhysX SDK 2.8.3 will be replaced with latest PhysX 3.3

    In comparison to PhysX 2.8 branch, PhysX 3 will bring a significant performance improvements and a broad amount of new features, such as advanced vehicle module, new cloth solver, reworked scene queries and CCD systems, full multi-threading support, etc.

    Written by Zogrim

    March 18th, 2014 at 1:13 pm

    PhysX System Software 9.13.1220

    with 3 comments

    nvidia-physx

    New PhysX System Software v. 9.13.1220 was released with 334.67 Beta GPU Drivers.

    Update:

    This PSS release adds support for Maxwell based GPUs, such as GTX 750 and GTX 750 Ti.

    You can download PSS 9.13.1220 from official page or our server (39 mb)

    Written by Zogrim

    January 27th, 2014 at 8:06 pm

    Posted in PhysX Drivers

    Tagged with ,

    Introducing NVIDIA HairWorks: fur and hair simulation solution

    with 8 comments

    Real-time simulation and rendering of realistic hair/fur, consisting of multiple strands, is gettng much attention these days – one can easily name a TressFX solution, developed by AMD.

    A competitive response from NVIDIA, new hair and fur simulation technology, which is now officially called NVIDIA HairWorks, was firstly showcased at The Witcher 3 presentation half a year ago and recently used in an actual game title – Call of Duty: Ghosts – to provide “Dynamic Fur” simulation for animal characters.

    In comparison to other GPU accelerated physics features, Dynamic Fur was implemented through DirectCompute, which opens it for AMD users as well.

    Tae-Yong Kim, physics programmer at NVIDIA, has agreed to answer some of our questions about HairWorks solution in general, and Call of Duty: Ghosts integration in particular.

    Read the rest of this entry »

    Written by Zogrim

    January 16th, 2014 at 11:33 am

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