MovieGate developer Christophe Ducommun has been optimizing his application for the new Snow Leopard operating system with Grand Central Dispatch and OpenCL. His results show approximately 50% increase in video encoding speed when compared to the plain Leopard, while also reducing the CPU load during video decoding by passing some of the work to the graphics processing unit. These results highlight the potential performance gains OpenCL and Grand Central Dispatch can bring as developers begin to take advantage of them.
Pixelux will work with AMD to develop an OpenCL accelerated Digital Molecular Matter engine. Pixelux are the folks who developed the Digital Molecular Matter engine used by Lucas Film for some of their effects. Recently, Pixelux released an end user plug-in version of the Digital Molecular Matter for Maya.
The upcoming Palm Pixi will have the new MSM7627 chipset from Qualcomm giving close to the same performance as the Pre. Featuring two ARM cores integrated as a single chip – a dedicated CPU core and a dedicated modem processor – 320MHz application DSP for multimedia supporting full 30 fps WVGA encode/decode, 200MHz hardware-accelerated 3D graphics core supporting OpenGL ES 2.0, high-resolution camera and integrated GPS.
gles2-bc is an open source C++ library which makes the non-backward compatible OpenGL ES 2.0 API backward compatible to ease the development with various OpenGL ES APIs. The initial version was just released providing most of the backward compatibility.
Over the past weekend, and very quietly, support for WebGL started to appear in WebKit. If you are interested in seeing what WebGL is all about, watch this video on youtube. If you want to see WebGL it in action, you will need to check out a copy from the WebKit repository, as it is not available yet in the nightly builds. A list of browsers that use WebKit is available on Wikipedia. Some of the more popular browsers that use WebKit include Safari, Chrome, Omniweb, iCab, Android browser and the WebOS browser.
As the 3D wars heat up, many folks see COLLADA's .dae format as a front runner for Digital Content Creation (DCC). In the Engineering CAD field the STandard for the Exchange of Product model data (STEP) has been declared as a clear winner by some. This article is an attempt to start a conversation on whether or not the COLLADA format is the next 'STEP' for the DCC industry.
The Khronos Group hosted a series of OpenCL tutorials at the Hotchips 2009 event in August on high performance chips. All of these OpenCL tutorials are now online in the Khronos Developers Library. Included are tutorials from AMD, EA, Intel, Nokia, NVIDIA, and of course the Khronos Group.
While OpenCL is very similar in many respects to NVIDIA's CUDA, it adds features to take advantage of other targets; and though it's quite complex, it has the potential to deliver very high performance, and is much easier than trying to map your computation into OpenGL or graphics primitives. So says Michael Wolfe, with over 30 years in both academia and industry on developing compilers, and is now a senior compiler engineer at The Portland Group, Inc., a wholly-owned subsidiary of STMicroelectronics, Inc.
iPhones Wikipedia has posted a short video from Tap Tap Tap comparing the framerates between an iPhone 3G running OpenGL ES 1.1 and an iPhone 3GS running OpenGL ES 2.0.
NVIDIA released a new OpenCL Visual Profiler for Windows and Linux for developers. Leveraging the extensive performance instrumentation in NVIDIA's OpenCL drivers and hardware performance signals designed into NVIDIA GPUs, the OpenCL Visual Profiler provides developers with insight into performance bottlenecks and opportunities for optimization. NVIDIA also released a Best Practices guide for OpenCL.