OpenGL related stories

JebGL enables WebGL on browsers that don’t support WebGL

JebGL is a piece of Javascript which lets you run your WebGL apps in browsers lacking WebGL support without having to modify your existing code! Behind the scenes JebGL uses a fallback Java applet to emulate the WebGL canvas if needed, and the Java applet runs hardware accelerated using JOGL.

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Call for Authors for upcoming OpenGL Insights book

Patrick Cozzi and Christophe Riccio invite you to contribute to OpenGL Insights, a book containing original articles on OpenGL, OpenGL ES, and WebGL techniques by the OpenGL community and for the OpenGL community: from game programmers to web developers to researchers. OpenGL Insights will be published by A K Peters Ltd. / CRC Press in time for SIGGRAPH 2012. Given the wide array of OpenGL platforms, from Mac desktops to Android phones to web browsers, we invite you to submit article proposals on all aspects of OpenGL development, including performance tuning, recent GL features/extensions, application architecture, vendor-specific techniques, WebGL, and interoperability with other APIs. We are interested in proposals based on your unique real-world experience using OpenGL.

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Turkish content about OpenGL and GLSL

A new OpenGL blog has turkish translations based on lighthouse3d, songho, and other OpenGL and GLSL sites. All Turks of the friends of OpenGL are invited to help improve the content of the site.

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RenderStream 21.6 Teraflop Servers and Workstations for OpenCL

RenderStream announced its AMD Radeon based 21.6 teraflop servers and workstations for OpenCL / OpenGL / Brooks based applications and product development. The workstations offer 1,536 stream processors and eight GPUs per system, which provide access to 12,288 cores and 21.6 TFLOPS of aggregate compute power. As an example from information security, the HD 6970 and HD 6990 based VDACTr8 evaluated over 45 billion solutions per second versus 18 billion for the GTX 580 based systems, depending on the implementation.

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Third part of an in-depth tutorial to OpenGL

The last part of this series about OpenGL and OpenGL ES on DB-Interactively blog. The other tutorials came with a sample project to iPhone/iPad and covered the most important concepts of OpenGL. This last tutorial comes with a lot of informations about how to make 2D applications using OpenGL. As well, this tutorial brings:

  • Multisampling
  • PVRTC and textures
  • Optimizations

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WebGL Security

WebGL pays strong attention to security - just as any web technology should. With growing recognition of WebGL in the press, we thought we would summarize Khronos' work and stance on this important topic.

  1. Khronos agrees that security is a vitally important consideration for any web standard. WebGL was architected with security in mind from the ground up.
  2. All WebGL implementations already necessarily contain safeguards which prevent out-of-range memory accesses during rendering operations and access of uninitialized memory; please see here and here. These safeguards are tested by the WebGL conformance suite.
  3. Defense against denial of service attacks is still evolving in WebGL implementations. Khronos has specified an extension to OpenGL and OpenGL ES, GL_ARB_robustness, designed to prevent denial of service and out-of-range memory access attacks from WebGL content, preventing any possibility of using WebGL to execute malware on a user's machine.
  4. GL_ARB_robustness has already been deployed by some GPU vendors and Khronos expects it to be deployed rapidly by others. Browsers can check for the presence of this extension before enabling WebGL content. This is likely to become the deployment mode for WebGL in the near future.
  5. The ability to incorporate cross-domain images into WebGL scenes provides great utility to developers, but the WebGL working group is considering requiring Cross Origin Resource Sharing (CORS) opt-in or other mechanisms to prevent possible future abuse of this capability.
  6. The WebGL working group has been working closely with the GPU vendors in the Khronos group to make accelerated WebGL implementations secure and WebGL is influencing GPUs to provide even more flexible security options in the future.
  7. There are no known WebGL exploits and Khronos will continue to place close attention to technical and ecosystem opportunities to ensure WebGL is a secure technology that can be used with confidence.

Additional information can be found here.

Updated May 16 2011

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Learning Modern 3D Graphics Programming

Learning graphics programming in the era of shaders can seem daunting. This website's tutorials provide a firm foundation for understanding how to use modern shader-based hardware for graphics development. No prior graphics programming experience is expected. OpenGL v3.3 is used to demonstrate rendering techniques. Topics covered include: * Vertex transformations * Lighting, diffuse and specular, per-vertex and per-fragment. * HDR lighting and gamma correction.

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SGI updates their OpenGL series of programming courses

SGI has updated the list of upcoming OpenGL training courses. A compete schedule can be viewed here.

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FL Studio 10 has been launched—using a new OpenGL visualizer

The new version of music creation software FL-Studio contains a brand new OpenGL powered music visualizer called "ZGameEditor Visualizer" based on the free open source ZGameEditor engine. It comes with over 40 built-in effects that can respond to the music in various ways and it also allows you to create your own effects and share with others. Other features include using video to texture 3d-objects and publish your videos to YouTube.

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GPGPU Programming course in Fremont, CA

Students learn with interactive and hands-on sessions about GPU hardware, GPU languages, discovering how best to take advantage of GPUs for their computational needs. The course covers programming in both OpenCL and CUDA, pointing out the similarities and differences along the way. Topics include both the core languages and extensions including those for double precision and interfacing with OpenGL 3D graphics buffers.

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