NVidia ha rilasciato il SDK 3.1 di PhysX, download a partire da questa pagina del PhysX Developer Support

General

• VC10 support has been introduced.
• VC8 support has been discontinued.
• Namespaces cleaned up.
• Extensions, Character Controller and Vehicle source code made available in binary distribution.
• Added x86,x64 suffix to PxTaskCUDA.dll
• Removed boolean return value from PxScene::addActor(…), and similar API calls.
• Added Mac OS X, Android and Linux to the list of supported platforms. See Supported Platforms below for details.
• Upgraded GPU tech to CUDA 4.
• Cleaned up a large number of warnings at C++ warning level 4, and set SDK to compile with warnings as errors.
• Removed individual sample executables in favor of SampleAllInOne from PC and console builds.
• Fixed alpha blending in samples.
• Simplified some code in samples.
• Improved ambient lighting in samples.
• Made samples work with older graphics cards.
• Renamed some XBOX 360 specific files and folders.
• Improved and added more content the user’s guide.
• No longer passing NULL pointers to user allocator to deallocate.
• Various improvements to Foundation and classes shared with APEX.

Rigid Bodies

• Rigid Body: High performance alternative convex narrow phase code available to source licensees. See PERSISTENT_CONTACT_MANIFOLD in the code.
• Significant advancements in the continuous collision detection algorithm.
• Optimizations and robustness improvements for articulations.
• Added some helper code to the API.
• Added sleep code for articulations.
• Added support for vehicles with more than one chassis shape.
• Solver iteration count for articulations.
• Articulation limit padding configurable.
• The reference count of meshes does now take the application’s reference into acount as well and thus has increased by 1 (it used to count the number of objects referencing the mesh only). Note that a mesh does only get destroyed and removed from the list of meshes once the reference count reaches 0.
• Fixed autowake parameter sometimes being ignored.
• Constraint solver optimizations.
• Improved behavior of character controller on steep slopes.
• Binary serialization now saves names.
• Removed some descriptors from API.
• Removed the angular velocity term in the joint positional drive error formula.
• Fixed bug in capsule sweep versus mesh.
• Fixed a crash bug in the tire model.
• Fixed crashing of single link articulations.
• Fixed bug related to removing elements of an aggregate.
• Fixed swapped wheel graphs in sample vehicle.
• Fixed some slow moving bodies falling asleep in midair.
• Fixed missing collisions after a call to resetFiltering.
• Fixed broken autowake option in setAngularVelocity.
• Fixed D6 joint linear limits being uninitialized.
• A large number of misc. bug fixes and optimizations.
• Improved documentation and error messages associated with running out of narrow phase buffer blocks.
• Added articulation documentation.
• Expanded manual sections on joints.
• Improved reference doc for PxSceneQueryHitType.
• Added reference doc for PxSerializable.

Particles

• Particle index allocation removed from SDK. Added index allocation pool to extensions.
• Replaced GPU specific side band API PxPhysicsGpu and PxPhysics::getPhysicsGpu() with PxParticleGpu.
• Memory optimizations on all platforms and options to reduce memory usage according to use case with new per particle system flags:
  • PxParticleBaseFlag::eCOLLISION_WITH_DYNAMIC_ACTORS
  • PxParticleBaseFlag::ePER_PARTICLE_COLLISION_CACHE_HINT
• Fixed rare crash appearing with multi-threaded non-GPU particle systems and rigid bodies.
• Fixed particles leaking through triangle mesh geometry on GPU.
• Fixed fast particles tunneling through scene geometry in some cases.
• Fixed erroneous collision of particles with teleporting rigid shapes (setGlobalPose).
• Fixed particle sample behavior with some older GPU models.
• Fixed a GPU particle crash bug.

Cloth

• A new solution for simulating cloth and clothing.

Deformables

• Deformables are deprecated and will be removed in the next release. There is a new optimized solution for clothing simulation (see documentation on PxCloth for details).

Khronos Group ha annunciato il rilascio delle specifiche OpenGL 4.2. Le specifiche complete sono disponibili a questa pagina.

New functionality in the OpenGL 4.2 specification includes:

• enabling shaders with atomic counters and load/store/atomic read-modify-write operations to a single level of a texture.  These capabilities can be combined, for example, to maintain a counter at each pixel in a buffer object for single-rendering-pass order-independent transparency;
• capturing GPU-tessellated geometry and drawing multiple instances of the result of a transform feedback to enable complex objects to be efficiently repositioned and replicated;
• modifying an arbitrary subset of a compressed texture, without having to re-download the whole texture to the GPU for significant performance improvements;
• packing multiple 8 and 16 bit values into a single 32-bit value for efficient shader processing with significantly reduced  memory storage and bandwidth, especially useful when transferring data between shader stages.

Rilasciato Google Chrome Dev 10.0.612.3 per Windows e Mac OS X, e Google Chrome Dev 10.0.612.1 per tutte le piattaforme (Windows, Linux, Mac OS X)

This release fixes several crashes as well as:

All

• Updated WebKit - 534.15

Windows

• Google Cloud Print sign-in interface is now out from behind a flag and can be found in Under the Hood (Issue 60092)

Mac

• Various minor tweaks to tab overview mode (Issue 50307)
• 25% less logspew when loading the PDF plugin
• Sandbox the GPU process (Issue 48607)
• Experimental popup blocker animation
• Fix stuck hover state in bookmark button (Issue 27073)

Known Issues

• There is no space between the Apps- and the Most Visited-Sector (Issue 67073)
• The expanded Apps-Sector becomes unvisible after clicking on it (Issue 67075)

nVidia ha presentato la sua nuova scheda video GeForce GTX 570, http://bit.ly/g1N9YD. La nuova scheda supporta le librerie DirectX 11 con Shader Model 5.0, le librerie OpenGL 4.1, HDMI 1.4a. La dotazione di RAM è di 1280 MB GDDR5, la memory bandwidth è di 152 GB/sec.

GeForce GTX 570 Features
GPU: GF110 @ 732MHz
Shader processors: 480
Streaming multiprocessors: 15
Memory: five memory controllers (5x256MB) for a total of 1280MB of GDDR5 @ 950MHz real speed (or 1900MHz DDR or 3800MHz effective, see here for details:Graphics Cards Memory Speed Demystified), 320-bit
ROPs: 40
Texture units: 60
TDP: 219W
Power connectors: two 6-pin
3-way SLI support
3D API: OpenGL 4.1 and Direct3D 11
GPU Computing: CUDA, PhysX, OpenCL 1.1 and DirectCompute
Price: around US $350