Very Simple Font Library – Text rendering is very useful to display information on top of a 3D world. VSFL aims at providing users with the ability to render bitmapped text in an OpenGL application using the core profile. With immediate mode gone in core OpenGL versions, so are the vast majority of font libs … Read more
One of the features that was not selected to be part of the core functionality was matrix handling. Previously we had OpenGL and GLU functions that provided the means for easily setting the camera, defining projections, and performing geometric transformations on graphical objects. The Very Simple Matrix Library (VSML) aims at providing users with a … Read more
Learning Modern 3D Graphics Programming is almost an online book on core OpenGL. It covers a lot of ground, from drawing a triangle to HDR. The index promises a continuation onto texturing, render targets, and advanced lighting.
Chapter 3 from OpenGLBook.com is now available. The new chapter covers index buffers and primitive types. Source code compatible with OpenGL 3.3 is provided.
ShaderGen is an old tool from 3D labs, but its usefulness is not gone. The tool creates shaders that mimic the results of a set of fixed function state. There is a large set of options to define a state as available in OpenGL compatibility mode. Lighting, Fog, and all the other features that are … Read more
The Lighthouse3D OpenGL View Frustum Culling Tutorial has been ported to the new site. Bug reports and suggestions are most welcome.
This is an OpenGL 3.3 + GLSL 3.3 sample that loads and displays a 3D model with Assimp. It also uses DevIL in case the model has textures. It was based on Assimps OpenGL demo and it extends it to support OpenGL 3.3 The sample uses Texturing, Vertex Array Objects, and Uniform Blocks. Camera can … Read more
The OpenGLBook site released chapter 2. This chapter covers how to draw simple geometry using vertex buffer objects.
When we call a function from the OpenGL API we may be calling it incorrectly, and this is what glGetError is good for. “Incorrectly” can mean several things, for instance, the parameters are not in a valid range, or a function is being called without a proper context. Every time an error is detected a … Read more
GLUT was conceived by Mark Kilgard with the goal of providing a simple, yet powerful enough, toolkit to deal with the intricacies of the windowing system when building OpenGL applications. In my opinion GLUT was a very effective solution and completely fits the bill. As far as I know, GLUT is still the simplest toolkit … Read more