How to Rotate a Vertex by a Quaternion in GLSL
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NVIDIA OptiX Now AvailableThe OptiX engine has been in private testing at over 100 sites worldwide since the spring of 2009, with ray tracing developers already utilizing it to redefine interactive possibilities. You can join these ranks and explore how GPU ray tracing can transform your application by simply downloading the OptiX SDK and developing on standard graphics hardware. The OptiX SDK is free of charge and the engine is free to license in applications.System Requirements * Operating System: 32 or 64-bit versions of Windows XP, Windows Vista, Windows 7, Linux * CPU: x86 compatible * System Memory: matches graphics board recommendations * GPU*: NVIDIA Quadro FX or NVIDIA Tesla (GT200 class required for multi-GPU scaling and technical support) * Frame buffer memory: varies with data complexity * Driver: NVIDIA Unified Driver r190 or later, CUDA toolkit 2.3 or later * C/C++ Compiler: Visual Studio 2005 or 2008, along with CMAKE *NVIDIA GeForce to be supported with NVIDIA's upcoming "Fermi" GPU architecture.