In this episode of Adventures in OpenCL tutorials, we cover OpenCL context sharing with OpenGL. We make a simple particle system to demonstrate this feature. One of the most important aspects of this feature is the time we can save by doing rendering and calculations on the same memory in the GPU, this means we don’t need to copy data back and forth!
AMD Developer central just released an OpenCL optimization case study on SImple Reductions. Strategies examined for efficiently mapping reductions onto the ATI Radeon™ HD 5870 GPU and AMD Phenom™ II X4 965 CPU. Taking advantage of properties of the reduction being performed, as well as matching the style of reduction to the hardware platform, can result in performance improvements of up to 15x, compared to naive code.
"Into Tomorrow" broadcasts from Siggraph 2010 in Los Angeles, CA. Dave Graveline interviews Neil Trevett from The Khronos Group & NVIDIA. Dave and Neil discuss WebGL and "Pixels in the Palm of your hand"
More videos about the Khronos Group can be found on the YouTube Khronos Channel.
AMD has added OpenGL ES 2.0 support in the 10.8 drivers which will allow hardware accelerated WebGL support. The Catalyst 10.8 product is based on a published Khronos Specification, and is expected to pass the Khronos Conformance Testing Process. Current conformance status can be found at www.khronos.org/conformance.
Kanzi provides the missing link between today’s leading 3D graphics content creation tools (e.g. 3DS Max, Maya and Softimage) and target devices, now including the Android devices. Artists can easily export their designs from these software packages to Kanzi Tool using COLLADA data format. Kanzi also features a unified pipeline for OpenGL ES 2.0 and OpenGL ES 1.x based 3D graphics.
CMSoft brings an OpenCL accelerated SVM implementation that can be used for general-purpose classification. Support Vector Machine (SVM) is a statistical learning tool considered to be the state-of-the art classifier for many applications today, including medical research and text categorization. Source code is provided showing classification of the MNIST handwritten database.
Phoronix Test Suite Beta 3 adds another handful of Open Computing Language tests for Linux and Mac OS X. Eventually Windows will also be supported. The new test profiles include JuliaGPU, MandelGPU, SmallPT-GPU, and MandelbulbGPU as well an OpenCL test suite has also been added.
KTX (Khronos Texture) is a lightweight file format for OpenGL® textures, designed around how textures are loaded in OpenGL. KTX files contain all the parameters needed for texture loading. A single file can contain anything from a simple base-level 2D texture through to an array texture with all mipmap levels. Textures can be stored in one of the compressed formats, e.g. ETC1, supported by OpenGL family APIs and extensions or can be stored uncompressed. This forum is for the discussion of ideas, and questions about KTX, and the open source KTX tools available from the Khronos Group. See the KTX home page for full details of the format and tools.
The new 1.2.0 version of COLLADA 3D Viewer is available through Nokia Ovi Store. The major changes in this version include: much improved Collada loading performance and compatibility and startup screen now has links to test model bank, user guide and feedback form.
The 2010 GPU Technology Conference will run from September 20th - 23rd at the San Jose Convention Center. Pre-conference tutorials will include OpenCL optimization techniques and an introduction to OpenCL. The latest OpenGL features will discussed along with NVIDIA specific extensions. A fifty minute talk on WebGL will introduce this newly emerging standard and help you get started in WebGL development.
Recently, the really interesting discussions from a technological standpoint have been about the use cases for GPU computing. Tom Olson has had some fun recently in his OpenCL blog: where he tries to pick a fight with Jem Davies. Are they both right?
ESRI’s ArcGIS Explorer (AGX) is a free downloadable GIS viewer which allows viewing of a wide variety of spatial data in either 2D or 3D (Globe) display modes. ArcGIS Explorer supports import of COLLADA objects and allows the objects to interact with data.
Imagination Technologies and HUONE have confirmed that they will be exhibiting in the Khronos Pavilion and speaking at the Khronos developer University at Seoul SIGGRAPH. More technology expert members are expected to join in the demonstrations. For complete Khronos schedules and participation and anyone interested to attend SIGGRAPH Seoul or Khronos DevU in the SIGGRAPH ASIA 2010, please visit our event page.