Help end child hunger
Feb 152013

texturedThe GLSL Core Tutorial has a new section for image texturing. Images are commonly used as wallpaper applied to 3D shapes to create a variety of effects. In this section we focus on the OpenGL and GLSL typical scenario of texture usage, and explore a few new GLSL functions, such as textureSizetextureQueryLod, and textureQueryLevels.

Jan 302013

Morgan McGuire makes available a collection of Meshes that are common in recent papers. Most meshes are available in OBJ format.

The Brown Mesh Set, also by McGuire, provides a huge collection (1139) of older models. These models are in IFS format. Sample source code to read them is provided in the G3D engine.

The Large Geometric Models Archive provides the iconic Stanford Bunny, a large (+4 million vertices) skeleton model, and terrain data for the Grand Canyon and Puget Sound areas.

Jan 282013

OpenGL, unlike Direct3D, is operating system independent. While this eases the portability among different OS, it implies that we have to resort to external libraries for a number of tasks, loading images being one of the most used.

There are many libraries to load images, DevIL being one of them. It loads a large number of image formats and it is cross platform.

A short tutorial for loading an image, getting its data and attributes, and finally creating an OpenGL texture is available in here.

Jan 222013

Notepad++ is a great text editor and I keep using over and over. I found some GLSL syntax highlight UDL files in the site but they were not up to date and most importantly they we’re not prepared to work with dark themes. So I made two UDLs for GLSL 4.3. One for the default theme and another to use with dark themes. The extensions supported are: vert frag geom tesc tese v f g.

The zip file contains both. To install the themes go to “Language”->”Define your  language”. In the “User Defined Language” dialog select import to load the files into notepad++.

Here are some screenshots. Light version with default theme:











Dark version with Monokai theme:


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