In designing web applications, CAPTCHA tests are sometimes necessary to help prevent Bad People from automating attacks on your site. reCAPTCHA, a free service offered by Google, is a popular CAPTCHA service. While reCAPTCHA provides “plugins” for many client technologies, Google Web Toolkit (GWT) isn’t one of them. Fortunately, it’s quite straightforward to integrate using […]
OpenGL ES 2.0 – Matrix Madness
In a previous post, I talked a bit about the context in which OpenGL ES 2.0 shaders “live.” Aside from having to write shaders, the other big change between OpenGL ES 1.x and 2.0 is that applications have to manage their own matrices. There are many tutorials out there – the problem is that some […]