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Archive for the ‘GDC 2013’ tag

Post-GDC 2013: Enhancing Hawken and PlanetSide 2 Through Turbulence and Destruction

with 2 comments

A very interesting presentation from Game Developer Conference 2013 – “Enhancing Hawken and PlanetSide 2 Through Turbulence and Destruction” by Dane Johnston (NVIDIA), Aron Zoellner (NVIDIA), Tramell Isaac (SOE) and Ryan Elam (SOE) – is now finally available for replay from GDC Vault.

The presentation covers the basic features and authoring pipeline of APEX Turbulence and APEX Destruction modules, among other modules, and also provides a little post-mortem on how those modules were utilized to enhance several latest GPU PhysX games – PlanetSide 2 and Hawken.

It was also revealed during the talk, that with current implementation of GPU physics effects in Planetside 2 developers have only “scratched the surface of what APEX can do”, as more advanced content, including enhanced Turbulence effects, Destructible environments (like player created bases) and potentially Environmental cloth will be coming to the game in the future.  Good news for PlanetSide 2 players.

During Hawken and APEX Destruction part, it was mentioned that upcoming improvements for the Destruction module will include networking sync support, damage based vertex coloring, more authoring tools options (PhysX plug-ins, third party) and also a new damage system, that is based on artist feedback.

Finally, the APEX Hair & Fur was mentioned as the upcoming module.

Written by Zogrim

April 24th, 2013 at 5:46 pm

Post-GTC 2013: GPU PhysX effects in Borderlands 2 post-mortem

with one comment

Folks at TomsHardware have kindly uploaded an onscreen recording of the “Post Mortem: GPU Accelerated Effects in Borderlands 2” talk, which was presented at GPU Technology Conference (GTC 2013) and, later on, at Game Developer Conference (GDC 2013) in March, and is not yet available through official channels.

The presentation covers the implementation details and the authoring process of the extra physics effects (impact debris particles, simulated cloth and SPH fluids) for one of the best game with GPU PhysX support – Borderlands 2.

Written by Zogrim

April 5th, 2013 at 10:20 pm

GDC 2013 Demo: APEX Turbulence in CryEngine

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The following demo is quite interesting – it is showcasing real-time particle simulation, using APEX Turbulence module and CryEngine from Crytek.

This one should be approached carefully: it is not the official feature of the CryEngine, more like a proof of concept of how APEX can be utilized in non-PhysX SDK based game engine.

Demo is using custom particle system (simplified version of the one from PhysX SDK) and Turbulence driven velocity fields to control particle motion. Interactions with level geometry and rigid body objects are also supported.

Such technology may offer some interesting new possibilities for GPU PhysX games.

Written by Zogrim

March 28th, 2013 at 12:10 pm

GDC 2013 Demo: real-time fracturing coupled with fluid simulation

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Destruction with real-time fracturing and dynamic fluid simulation are awesome by themselves, but what if you can get both, at the same time?

Update: Real Time Dynamic Fracture explained.

Update #2: Introduction to Position Based Fluids.

This demo, showcased at GDC 2013, was used to demonstrate several new features, which will be included in future versions of PhysX SDK and APEX – rigid body simulation with real-time fracturing, improved SPH fluid solver and interaction between the two.

Written by Zogrim

March 28th, 2013 at 11:17 am

GDC 2013: PhysX 3 cloth solver will add self-collision and inter-collision features

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Special “embedded” PhysX 3 clothing solver, introduced in APEX SDK 1.2, has indeed many advantages over the previous cloth simulation solution – it is more robust, efficient, stretch-resistance.

However, due to its simplified nature, PhysX 3 cloth solver is also missing some features, such as tearing, two-way interaction with rigid bodies and self-collision support.

As the first step, updated version of the clothing solver, which will be introduced in PhysX SDK 3.3 and APEX Clothing 1.3 module, will include new self-collision algorithm, that will allow cloth to behave more naturally and also improve formation of folds and wrinkles.

In addition to self-collision, improved cloth solver also supports inter-collision between multiple cloth actors (take that, 2.8 cloth !) for qualitative simulation of complex multi-layered clothing.

For a note, full-body clothing assets, presented in the video, contain roughly ~ 10 000 simulated cloth vertices each and are running on GPU in real-time.

Written by Zogrim

March 28th, 2013 at 5:56 am

Posted in PhysX SDK, PhysX Tools

Tagged with , , , ,

GDC 2013 Demo: Real Time Dynamic Fracture with Volumetric Approximate Convex Decompositions

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Quite interesting technical demo video was revealed today by Matthias Müller-Fischer, PhysX SDK Research Lead in NVIDIA.

Update: Real Time Dynamic Fracture explained.

It is showcasing a further evolution of a dynamic real-time fracturing and GPU accelerated rigid body simulation algorithm, firstly presented at GDC 2012. As you may see, improved method works perfectly with complex arbitrary meshes, not just basic shapes.

A paper describing this technology, called “Real Time Dynamic Fracture with Volumetric Approximate Convex Decompositions”, will be available for public download later on, once it will be approved for SIGGRAPH.

Written by Zogrim

March 27th, 2013 at 3:56 pm

Pre-GDC 2013: APEX and PhysX Presentations overview

without comments

Official NVIDIA page for the upcoming Game Developer Conference 2013, which will be held on March 25-29 in San-Francisco, is now online.

Current schedule reveals several presentations, dedicated to APEX and PhysX Technologies. Let’s take a look on what we can expect this year:

March 28th, West Hall, Room #2002

Post Mortem: GPU Accelerated Effects in Borderlands 2

11:15 am - 12:15 pm.

Dane Johnston, Technical Artist, NVIDIA. James Sanders, Director of Visual FX, Gearbox.

Borderlands 2 released to critical acclaim on September 18th, 2012 and showcased a wide variety of NVIDIA CUDA®-accelerated GPU effects. This session will dive into the exact effects that were featured and their benefits to the visual fidelity of the gamer experience.

Side-by-side examples of how GPU-accelerated effects are changing the gaming landscape will be demonstrated in a gaming session. Further examinations into the production process and effects creation will also be explored.

Read the rest of this entry »

Written by Zogrim

February 20th, 2013 at 3:46 pm

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