How to Rotate a Vertex by a Quaternion in GLSL
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The CUDA Toolkit and SDK 2.3 betas are now available to registered developers. They include the following features: * The CUFFT Library now supports double-precision transforms and includes significant performance improvements for single-precision transforms as well. See the CUDA Toolkit release notes for details. * The CUDA-GDB hardware debugger is now available for all supported Linux platforms and is included in the CUDA Toolkit installer. * GPUs in an SLI group are now enumerated individually, so you can achieve multi-GPU performance even when SLI is enabled for graphics. * New support for fp16 <-> conversion intrinsics allows storage of data in fp16 format with computation in fp32. Use of fp16 format is ideal for applications that require higher numerical range than 16-bit integer but less precision than fp32 and reduces memory space and bandwidth consumption. * The CUDA SDK has been updated to include: o A new pitchLinearTexure code sample that shows how to effeciently texture from pitch linear memory. o A new PTXJIT code sample illustrating how to use cuModuleLoadDataEx() to load PTX source from memory instead of loading a file. o Two new code samples for Windows, showing how to use the NVCUVID library to decode MPEG-2, VC-1, and H.264 content and pass frames to OpenGL or Direct3D for display. o Updated code samples showing how to properly align CUDA kernel function parameters so the same code works on both x32 and x64 systems. * The Visual Profiler (packaged separately) includes several enhancements: o All memory transfer API calls are now reported o Support for profiling multiple contexts per GPU. o Synchronized clocks for requested start time on the CPU and start/end times on the GPU for all kernel launches and memory transfers. o Global memory load and store efficiency metrics for GPUs with compute capability 1.2 and higher. * The CUDA Driver for MacOS is now packaged separately from the CUDA Toolkit. * Support for major Linux distros, MacOS X, and Windows: o Fedora 10, RHEL 4.7 & 5.3, SLED 10.2 & 11.0, OpenSUSE 11.1, and Ubuntu 8.10 & 9.04 o Windows XP/Vista/7 with Visual Studio 8 (VC2005) and 9 (VC2008) o MacOS X 10.5.6 and later (32-bit)