We have been making a lot of progress in higher quality physics simulation for robotics, games and visual effects. To make our physics simulation easier to use, especially for roboticist and machine learning experts, we created Python bindings, see examples/pybullet. In addition, we added Virtual Reality support for HTC Vive and Oculus Rift using the openvr sdk. The new Bullet Physics SDK 2.83 is available from github. Also, our proposal for a course on Bullet got accepted for the upcoming SIGGRAPH 2015 conference in Los Angeles. Tuesday, 11 August 3:45 pm - 5:15 pm, Los Angeles Convention Center, Room 404AB UPDATE: here are the slide decks: 3:45-4.15 pmIntroduction to rigid body pipeline, collision detection 4:15-4:45 pmAdvances in constraint solving, Featherstone Articulated Body Algorithm 4:45-5.15 pmAcceleration of the full collision detection and constraint solver on GPU Thanks to all Bullet contributors and users! The new Bullet 2.82 SDK is available for download. Bullet 2.79 is out.
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physicsPhysX Physics Simulation for DevelopersPhysX is a scalable multi-platform game physics solution supporting a wide range of devices, from smartphones to high-end multicore CPUs and GPUs. PhysX is already integrated into some of the most popular game engines, e.g. UE3/UE4. PhysX also enables simulation -driven effects like Clothing, Destruction and Particles. NVIDIA GameWorks in action Call of Duty: Ghosts Call of Duty: Ghosts provides a more immersive gaming experience through interactive smoke (NVIDIA Turbulence), dynamic fur on Riley/wolves (NVIDIA HairWorks), and TXAA.Read more Batman Arkham Origins Batman Arkham Origins makes use of NVIDIA Turbulence for proper snow, smoke interaction. Hawken Hawken makes extensive use of NVIDIA Turbulence for interactive energy effects. NVIDIA PhysX Feature Videos
50 Great Examples of Data VisualizationWrapping your brain around data online can be challenging, especially when dealing with huge volumes of information. And trying to find related content can also be difficult, depending on what data you’re looking for. But data visualizations can make all of that much easier, allowing you to see the concepts that you’re learning about in a more interesting, and often more useful manner. Below are 50 of the best data visualizations and tools for creating your own visualizations out there, covering everything from Digg activity to network connectivity to what’s currently happening on Twitter. Music, Movies and Other Media Narratives 2.0 visualizes music. Liveplasma is a music and movie visualization app that aims to help you discover other musicians or movies you might enjoy. Tuneglue is another music visualization service. MusicMap is similar to TuneGlue in its interface, but seems slightly more intuitive. Digg, Twitter, Delicious, and Flickr Internet Visualizations
Simulated Articulated EntitiesBefore going into more detail of the code implementing the simulated arm, look at how joints are specified in the simulation and underlying physics engine. For a more detailed overview, you should download the latest NVIDIA PhysX Technology documentation and review the section for Joints, especially the 6DoF joints. The Joint Properties (the state of the joint) data type is defined in Samples\Common\PhysicalModel.cs as follows: The simulation engine exposes only one type of joint that can be configured to express all known joint configurations. The joint orientation is defined by specifying two vectors which define a joint frame at each connection point. Simulated Articulated Entities Joints - The axes that define the joint frame. The joint is oriented by specifying the Local Axis vector and the Normal Axis vector. Each vector in the joint frame corresponds to a degree of freedom of the joint. Spherical Joint Example The code for the first part of the entity is shown below. Console
musicMindmapping, concept mapping in 3DAutomatic Graph LayoutMSAGL is a .NET tool for graph layout and viewing. It was developed in Microsoft Research by Lev Nachmanson. MSAGL is built on the principle of the Sugiyama scheme; it produces so called layered, or hierarchical layouts. This kind of a layout naturally applies to graphs with some flow of information. The package contains the following: Layout engine (Microsoft.MSAGL.dll) - The core layout functionality. Some important features of the viewer are: Pan and Zoom of the graph. The code snippet demonstrates the basic usage of the viewer. Drawing of the graph from the sample More code samples… People
idflood/ThreeNodes.jsGreat MapGephi, an open source graph visualization and manipulation softwarePdDroidParty - Pure Data patches on Android devicesCalifornia woman swears off mirrors for a yearKjerstin Gruys likes her legs now — and the feel of her cheeks as she applies makeup. Even perfumes smell better, she says, since she stopped looking in mirrors six months ago. Last March, the 28-year-old PhD student embarked on a year-long project, banning herself from gazing at her own reflection — no mirrors, no reflective surface at all. Denied access to her own reflection Gruys says she has become happier with her own appearance. Gruys, who suffered from eating disorders in high school and college, blames mirrors for many body image issues. Too many women are obsessed with their image, she says, quoting a British study that revealed that women spend the equivalent of five days each year staring, often critically, at their own reflection. Gruys started the project, which she chronicles on her blog Mirror Mirror … OFF The Wall, after an exhausting March day spent shopping for her wedding dress. She later posted on her blog, “At some point my dress search stopped being fun.
An intro to modern OpenGL. Chapter 1: The Graphics PipelineAn intro to modern OpenGL. Chapter 1: The Graphics Pipeline updated April 5, 2010 17:12:05 PDT Table of Contents | Chapter 2 » OpenGL has been around a long time, and from reading all the accumulated layers of documentation out there on the Internet, it's not always clear what parts are historic and what parts are still useful and supported on modern graphics hardware. Update: Join the Reddit discussion. What is OpenGL? Another recent development has been the adoption of general purpose GPU (GPGPU) libraries, including nVidia's CUDA and Khronos' OpenCL. For these tutorials, I'm going to assume you're already a programmer and that you know C, but that you haven't necessarily seen OpenGL or done graphics programming before. Where do I get OpenGL, GLUT, and GLEW? OpenGL comes standard in some form or another on MacOS X, Windows, and most Linux distributions. To install GLUT and GLEW, look for the binary packages on their respective sites. The graphics pipeline The vertex and element arrays