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I recently started playing with shaders in three.js and I wanted to share some of what I’ve discovered so far. Shaders are the ‘secret sauce’ of modern graphics programming and understanding them gives you a lot of extra graphical fire-power. For me the big obstacle to learning shaders was the lack of documentation or simple examples, so hopefully this post will be useful to others starting out. This post will focus on using pixel shaders to add post-processing effects to Three.js scenes. This post assumes you already know the basics of using Three.js. What is a Shader? A Shader is a piece of code that runs directly on the GPU. The big conceptual shift when considering shaders is that they run in parallel. There are 2 main types of shaders – vertex shaders and pixel shaders. Vertex Shaders generate or modify 3D geometry by manipulating its vertices. There are 2 different kinds of pixel shaders - Shaders that draw an image or texture directly. Pixel Shaders in Three.js GLSL Syntax

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Internet Week Europe 2010 Hello. My Name's Paul and today I'm going to demo some neat features of HTML5 (and modern browser capabilities) through canvas (in fact, this background is a fullscreen canvas ~ we'll let this draw as we go through the talk). This won't cover absolutely everything in this field but will pick out a few features as examples for inspiration. Data Visualization, Design and Information Munging // Martin Krzywinski / Genome Sciences Center Schemaball is a flexible schema visualizer for SQL databases. The purpose of Schemaball is to help visualize the relationships between tables. Tables are related by foreign keys, which are fields which store the value of a record field from another table. Foreign keys create a lookup relationship between two tables. Large schemas can have hundreds of tables and table relationships.

Blog Photo: Resonate The 3 days in Belgrade that are the Resonate Festival are perhaps the most intensely packed and compressed segments of time imaginable. They seem in the moment to flash by in an epic and chaotic blast of inspiration and then to linger for days, weeks and it now seems likely, months after-the-fact as its implications are processed and absorbed. For those who are not familiar with this relatively new festival, Resonate's mission statement is "Bringing together artists to drive a forward-looking debate on the position of technology in art and culture" and that the festival is a "platform for networking, information, knowledge sharing and education. It brings together distinguished, world class artists with an opportunity of participating in a forward-looking debate on the position of technology in art and culture." And all of this takes place in many languages in an environment completely lacking in artifice, conservatism and/or corporate over/undertones.

Understanding Camera Lenses Understanding camera lenses can help add more creative control to digital photography. Choosing the right lens for the task can become a complex trade-off between cost, size, weight, lens speed and image quality. This tutorial aims to improve understanding by providing an introductory overview of concepts relating to image quality, focal length, perspective, prime vs. zoom lenses and aperture or f-number. ARSE i am Empty module and/or action after parsing the URL "/generator/generator.php" (/). stack trace at () in line 44 ... if (empty( $moduleName ) || empty( $actionName )) throw new sfError404Exception ( sprintf ( 'Empty module and/or action after parsing the URL "%s" (%s/%s).' , $request -> getPathInfo (), $moduleName , $actionName ));

Quintura - visual search engine Quintura - visual search engine Quintura - visual search engine for hotels ⚫ London hotels ⚫ Manchester hotels ⚫ Liverpool hotels Fashion & Luxury Events » Comptoir des Cotonniers FW 10-11 Founder & Artistic Director Working with one of the most elusive and often under-appreciated elements in creating unique atmospheres,Thierry Dreyfus has been deemed as "[the man] who is making the City of Light live up to its name. The designer is the master of the soft glow, bright beams and laser lines" by Suzy Menkes of the International Herald Tribune. Art director and artist since 1985, Thierry Dreyfus got his first taste of lighting in theater and opera, and since gone on to develop his own artistic mise en scène.

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