GDC 14: CRYENGINE To Support Mantle, AMD Gets Another Endorsement

Subject: General Tech, Shows and Expos | March 19, 2014 - 05:00 PM |
Tagged: Mantle, gdc 14, GDC, crytek, CRYENGINE

While I do not have too many details otherwise, Crytek and AMD have announced that mainline CRYENGINE will support the Mantle graphics API. CRYENGINE, by Crytek, now sits alongside Frostbite, by Dice, and Nitrous, by Oxide Games, as engines which support that alternative to DirectX and OpenGL. This comes little more than a week after their announcement of native Linux support with their popular engine.

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The tape has separate draw calls!

Crytek has been "evaluating" the API for quite some time now, showing interest back at the AMD Developer Summit. Since then, they have apparently made a clear decision on it. It is also not the first time that CRYENGINE has been publicly introduced to Mantle, with Chris Robert's Star Citizen, also powered by the 4th Generation CRYENGINE, having announced support for the graphics API. Of course, there is a large gap between having a licensee do legwork to include an API and having the engine developer provide you supported builds (that would be like saying UnrealEngine 3 supports the original Wii).

Hopefully we will learn more as GDC continues.

Editor's (Ryan) Take:

As the week at GDC has gone on, AMD continues to push forward with Mantle and calls Crytek's implementation of the low level API "a huge endorsement" of the company's direction and vision for the future. Many, including myself, have considered that the pending announcement of DX12 would be a major set back for Mantle but AMD claims that is "short sited" and as more developers come into the Mantle ecosystem it is proof AMD is doing the "right thing."  

Here at GDC, AMD told us they have expanded the number of beta Mantle members dramatically with plenty more applications (dozens) in waiting.  Obviously this could put a lot of strain on AMD for Mantle support and maintenance but representatives assure us that the major work of building out documentation and development tools is nearly 100% behind them.

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If stories like this one over at Semiaccurate are true, and that Microsoft's DirectX 12 will be nearly identical to AMD Mantle, then it makes sense that developers serious about new gaming engines can get a leg up on projects by learning Mantle today. Applying that knowledge to the DX12 API upon its release could speed up development and improve implementation efficiency. From what I am hearing from the few developers willing to even mention DX12, Mantle is much further along in its release (late beta) than DX12 is (early alpha).

AMD indeed was talking with and sharing the development of Mantle with Microsoft "every step of the way" and AMD has stated on several occasions that there were two outcomes with Mantle; it either becomes or inspires a new industry standard in game development. Even if DX12 is more or less a carbon copy of Mantle, forcing NVIDIA to implement that API style with DX12's release, AMD could potentially have the advantage of gaming performance and support between now and Microsoft's DirectX release.  That could be as much as a full calendar year from reports we are getting at GDC.  

Ray Tracing is back? That's Wizard!

Subject: General Tech, Shows and Expos | March 19, 2014 - 01:20 PM |
Tagged: Imagination Technologies, gdc 14, wizard, ray tracing

The Tech Report visited Imagination Technologies' booth at GDC where they were showing off a new processor, the Wizard GPU.  It is based on the PowerVR Series6XT Rogue graphics processor which is specifically designed to accelerate ray tracing performance, a topic we haven't heard much about lately.  They describe the performance as capable of processing 300 million rays and 100 million dynamic triangles per second which translates to 7 to 10 rays per pixel at 720p and 30Hz or 3 to 5 rays a pixel at 1080p and 30Hz.  That is not bad, though Imagination Technologies estimates movies display at a rate of 16 to 32 rays per pixel so it may be a while before we see a Ray Tracing slider under Advanced Graphics Options.

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"When we visited Imagination Technologies at CES, they were showing off some intriguing hardware that augments their GPUs in order to accelerate ray-traced rendering. Ray tracing is a well-known and high-quality form of rendering that relies on the physical simulation of light rays bouncing around in a scene. Although it's been used in movies and in static scene creation, ray tracing has generally been too computationally intensive to be practical for real-time graphics and gaming. However, Imagination Tech is looking to bring ray-tracing to real-time graphics—in the mobile GPU space, no less—with its new family of Wizard GPUs."

Here is some more Tech News from around the web:

Tech Talk

GDC 14: WebCL 1.0 Specification is Released by Khronos

Subject: General Tech, Graphics Cards, Mobile, Shows and Expos | March 19, 2014 - 09:03 AM |
Tagged: WebCL, gdc 14, GDC

The Khronos Group has just ratified the standard for WebCL 1.0. The API is expected to provide a massive performance boost to web applications which are dominated by expensive functions which can be offloaded to parallel processors, such as GPUs and multi-core CPUs. Its definition also allows WebCL to communicate and share buffers between it and WebGL with an extension.

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Frequent readers of the site might remember that I have a particular interest in WebCL. Based on OpenCL, it allows web apps to obtain a list of every available compute device and target it for workloads. I have personally executed tasks on an NVIDIA GeForce 670 discrete GPU and other jobs on my Intel HD 4000 iGPU, at the same time, using the WebCL prototype from Tomi Aarnio of Nokia Research. The same is true for users with multiple discrete GPUs installed in their system (even if they are not compatible with Crossfire, SLi, or are from different vendors altogether). This could be very useful for physics, AI, lighting, and other game middleware packages.

Still, browser adoption might be rocky for quite some time. Google, Mozilla, and Opera Software were each involved in the working draft. This leaves both Apple and Microsoft notably absent. Even then, I am not sure how much interest exists within Google, Mozilla, and Opera to take it from a specification to a working feature in their browsers. Some individuals have expressed more faith in WebGL compute shaders than WebCL.

Of course, that can change with just a single "killer app", library, or middleware.

I do expect some resistance from the platform holders, however. Even Google has been pushing back on OpenCL support in Android, in favor of their "Renderscript" abstraction. The performance of a graphics processor is also significant leverage for a native app. There is little, otherwise, that cannot be accomplished with Web standards except a web browser itself (and there is even some non-serious projects for that). If Microsoft can support WebGL, however, there is always hope.

The specification is available at the Khronos website.

Source: Khronos

GDC 14: EGL 1.5 Specification Released by Khronos

Subject: General Tech, Graphics Cards, Mobile, Shows and Expos | March 19, 2014 - 09:02 AM |
Tagged: OpenGL ES, opengl, opencl, gdc 14, GDC, EGL

The Khronos Group has also released their ratified specification for EGL 1.5. This API is at the center of data and event management between other Khronos APIs. This version increases security, interoperability between APIs, and support for many operating systems, including Android and 64-bit Linux.

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The headline on the list of changes is the move that EGLImage objects makes, from the realm of extension into EGL 1.5's core functionality, giving developers a reliable method of transferring textures and renderbuffers between graphics contexts and APIs. Second on the list is the increased security around creating a graphics context, primarily designed for WebGL applications which any arbitrary website can become. Further down the list is the EGLSync object which allows further partnership between OpenGL (and OpenGL ES) and OpenCL. The GPU may not need CPU involvement when scheduling between tasks on both APIs.

During the call, the representative also wanted to mention that developers have asked them to bring EGL back to Windows. While it has not happened yet, they have announced that it is a current target.

The EGL 1.5 spec is available at the Khronos website.

Source: Khronos

GDC 14: SYCL 1.2 Provisional Spec Released by Khronos

Subject: General Tech, Graphics Cards, Mobile, Shows and Expos | March 19, 2014 - 09:01 AM |
Tagged: SYCL, opencl, gdc 14, GDC

To gather community feedback, the provisional specification for SYCL 1.2 has been released by The Khronos Group. SYCL extends itself upon OpenCL with the C++11 standard. This technology is built on another Khronos platform, SPIR, which allows the OpenCL C programming language to be mapped onto LLVM, with its hundreds of compatible languages (and Khronos is careful to note that they intend for anyone to make their own compatible alternative langauge).

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In short, SPIR allows many languages which can compile into LLVM to take advantage of OpenCL. SYCL is the specification for creating C++11 libraries and compilers through SPIR.

As stated earlier, Khronos wants anyone to make their own compatible language:

While SYCL is one possible solution for developers, the OpenCL group encourages innovation in programming models for heterogeneous systems, either by building on top of the SPIR™ low-level intermediate representation, leveraging C++ programming techniques through SYCL, using the open source CLU libraries for prototyping, or by developing their own techniques.

SYCL 1.2 supports OpenCL 1.2 and they intend to develop it alongside OpenCL. Future releases are expected to support the latest OpenCL 2.0 specification and keep up with future developments.

The SYCL 1.2 provisional spec is available at the Khronos website.

Source: Khronos

OCZ Partners With AMD at GDC to Showcase Solid-State Supercharged Systems for Gaming Professionals

Subject: General Tech, Shows and Expos | March 18, 2014 - 12:38 PM |
Tagged: gdc 14, amd, ocz, Vector 150

If you make it to the Game Developers Conference this year make sure to pay a visit to the AMD booth where you can get a look at OCZ's Vector 150 drives in action.  They aim to show that these drives are not only good for the gamer, they are good for the game designer as well.

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OCZ Vector 150 SSDs on Display at AMD Booth #1024, March 17-21 in San Francisco, CA

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SAN JOSE, CA - March 17, 2014 - OCZ Storage Solutions - a Toshiba Group Company and leading provider of high-performance solid state drives (SSDs) for computing devices and systems, today announced its partnership with AMD to showcase the power of high performance technology at the Game Developer Conference (GDC) March 17-21 at the Moscone Center in San Francisco, CA. AMD's demo systems will feature best-in-class Vector 150 Series solid state drives demonstrating how developers can enhance productivity and efficiency in their work.

"We are excited to partner with AMD for the upcoming Game Developers Conference to support the fast growing interactive game development industry," said Alex Mei, CMO for OCZ Storage Solutions. "OCZ is dedicated to delivering premium solid state storage solutions that are not only a useful tool for developers, but also meet the unique demands of enthusiasts and gamers on all levels."

"Our presence at the 2014 Game Developer Conference will feature a number of high-performance gaming systems running 24/7 in harsh conditions," said Darren McPhee, director of product marketing, Graphics Business Unit, AMD. "We knew that OCZ Vector SSDs were uniquely ready to meet the reliability requirements of our gaming installations. Between the high performance graphics of AMD Radeon™ GPUs and the fast load times of OCZ Vector SSDs, visitors to AMD's booth in the South Hall are in for a great gaming experience!"

GDC is the world's largest game industry event, attracting over 23,000 professionals including programmers, artists, producers, designers, audio professionals, business decision-makers, and other digital gaming industry authorities. OCZ's premium Vector 150 Series, designed for workstation users along with bleeding-edge enthusiasts, will be in AMD systems that promote improved CPU and GPU performance, enhanced rendering, speed, and overall system performance. Professional developer applications demand peak transfer speeds and ultra-high performance; OCZ SSDs offer 100 times faster access to data, quicker boot ups, faster file transfers, and a more responsive computing experience than hard drives.

GDC enables OCZ to team up with valued industries partners like AMD to reaffirm the Company's commitment to the gaming segment, and promote the use of flash storage for both developers and the gamers themselves.

GDC 14: OpenGL ES 3.1 Spec Released by Khronos Group

Subject: General Tech, Graphics Cards, Mobile, Shows and Expos | March 17, 2014 - 09:01 AM |
Tagged: OpenGL ES, opengl, Khronos, gdc 14, GDC

Today, day one of Game Developers Conference 2014, the Khronos Group has officially released the 3.1 specification for OpenGL ES. The main new feature, brought over from OpenGL 4, is the addition of compute shaders. This opens GPGPU functionality to mobile and embedded devices for applications developed in OpenGL ES, especially if the developer does not want to add OpenCL.

The update is backward-compatible with OpenGL ES 2.0 and 3.0 applications, allowing developers to add features, as available, for their existing apps. On the device side, most functionality is expected to be a driver update (in the majority of cases).

opengl-es-logo.png

OpenGL ES, standing for OpenGL for Embedded Systems but is rarely branded as such, delivers what they consider the most important features from the graphics library to the majority of devices. The Khronos Group has been working toward merging ES with the "full" graphics library over time. The last release, OpenGL ES 3.0, was focused on becoming a direct subset of OpenGL 4.3. This release expands upon the feature-space it occupies.

OpenGL ES also forms the basis for WebGL. The current draft of WebGL 2.0 uses OpenGL ES 3.0 although that was not discussed today. I have heard murmurs (not from Khronos) about some parties pushing for compute shaders in that specification, which this announcement puts us closer to.

The new specification also adds other features, such as the ability to issue a draw without CPU intervention. You could imagine a particle simulation, for instance, that wants to draw the result after its compute shader terminates. Shading is also less rigid, where vertex and fragment shaders do not need to be explicitly linked into a program before they are used. I inquired about the possibility that compute devices could be targetted (for devices with two GPUs) and possibly load balanced, in a similar method to WebCL but no confirmation or denial was provided (although he did mention that it would be interesting for apps that fall somewhere in the middle of OpenGL ES and OpenCL).

The OpenGL ES 3.1 spec is available at the Khronos website.

Source: Khronos

GDC 14: Valve's Steam Controller Is Similar to Dev Days

Subject: General Tech, Cases and Cooling, Shows and Expos | March 15, 2014 - 01:44 AM |
Tagged: GDC, gdc 14, valve, Steam Controller

Two months ago, Valve presented a new prototype of their Steam Controller with a significantly changed button layout. While the overall shape and two thumbpads remained constant, the touchscreen disappeared and the face buttons more closely resembled something from an Xbox or PlayStation. Another prototype image has been released, ahead of GDC, without many changes.

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Valve is still in the iteration process for its controller, however. Ten controllers will be available at GDC, each handmade. This version has been tested internally for some undisclosed amount of time, but this will be the first time that others will give their feedback since the design that was shown at CES. The big unknown is: to what level are they going to respond to feedback? Are we at the stage where it is about button sizing? Or, will it change radically - like to a two-slice toaster case with buttons inside the slots.

GDC is taking place March 17th through the 21st. The expo floor opens on the 19th.

GDC 14: Mozilla & Epic Games Run Unreal Engine 4 in Firefox

Subject: General Tech, Shows and Expos | March 12, 2014 - 09:17 PM |
Tagged: GDC, gdc 14, mozilla, epic games, unreal engine 4

Epic Games has been wanting Unreal Engine in the web browser for quite some time now. Back in 2011, the company presented their Citadel demo running in Flash 11.2. A short while later, Mozilla and Epic ported it to raw JavaScript and WebGL. With the help of asm.js, which is a series of optimizations for JavaScript, Unreal Engine 3 was at home in the browser at near-native speed, with no plugins. Epic's Tim Sweeney and Mark Rein, in an interview with GamaSutra, said that Unreal Engine 4 will take it beyond a demo and target web browsers as a supported platform.

Today, Mozilla teases Unreal Engine 4 running in Firefox, ahead of GDC.

Speaking of speed, asm.js can now reach within 67% of native performance and Mozilla is still optimizing their compiler. While it is difficult to write asm.js-compliant code by hand, companies like Epic are simply compiling their existing C/C++ code through Emscripten into that optimized Javascript. If you have a bit of CPU overhead in your native application, it could little more than a compile away from running in the web browser, possibly any web browser on any platform, without plugins. This obviously has great implications for timeless classics that would otherwise outlive its host platform.

Both Mozilla and Epic will have demos in their booths on the conference floor.

Source: Mozilla

GDC 2014: Crytek's CRYENGINE Adds Linux Support

Subject: General Tech, Shows and Expos | March 11, 2014 - 05:23 PM |
Tagged: gdc 14, crytek, CRYENGINE

The Game Developers Conference (GDC 2014) is getting set for next week in San Francisco and Crytek has an early announcement. Attendees of the event, at presentations and demos in their booth, will see CRYENGINE running natively on Linux. The engine has also been updated to include their enhancements first seen in Ryse, such as "Physically Based Shading".

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This announcement gives promise to SteamOS as a viable gaming platform because games which license this engine would have an easier time porting over. That said, Unreal Engine has offered Linux compatibility for licensees, to very limited uptake. Sure, Steam could change that trend because a chicken or an egg could happen at some point -- it does not matter which comes first. Still, this is not the first popular engine to be available for Linux.

Their "Physically Based Shading" system is quite interesting, however. As I understand it, the idea is that developers can make (or maybe use) a library of materials and apply it across any game. This should hopefully reduce the number of artist man-hours to produce a generalized optimal shader. It is much slower to tweak specular highlights and vector math than it is to say "you... are gold... be gold".

The official GDC expo will take place March 19th - 21st but I expect news will flood out from now until then.

Source: Crytek