The updated version of GLSL tutorial. Only the core version will be dealt in this tutorial. The tutorial is, and will be in the near future, in construction. I don’t plan to close it, at least in the near future, unless a new version of OpenGL changes everything again. I’ll be adding content from time … Read more
NShader is a Visual Studio extension that provides syntax highlighting in VS 2008 and 2010 (express editions are not supported). The following extensions are recognized: .glsl, .frag, .vert, .fp, .vp, .geom (no tessellation shaders yet 🙁 ).
VS*L has been updated to allow cube maps to be loaded as textures. Tangents and bitangents are also provided for every loaded model. The models default texture, the texture definitions of the loaded model, can now be replaced by any pre loaded texture.
VSMathLib, a part of the Very Simple Libraries framework, has suffered a minor update. The modelview matrix has been split into two matrices: model and view. The modelview matrix is still available, but now it is a computed matrix. The programmer should use the two individual matrices, model and view, and the lib will compute … Read more
A sample using all the libs in the Very Simple framework is now available from the VS*L downloads page. The sample source C code, shaders, a 3D model, and textures, are provided, as well as a Visual Studio 2010 solution.
Very Simple OpenGL Information Lib – OpenGL has a rich set of functions to query its state. It is possible to get information on just about anything, from which shaders are attached to a program, to the values of uniforms, or the properties of the textures currently bound. However, it is also true, that to … Read more
Christophe wrote an excellent call for bug reports on the OpenGL, GLSL and extension specs. “Getting OpenGL implementations better is not only the duty of implementers but also of the OpenGL programmers. There is something worse than a bug: there is an unknowned bug.”
One of the bugs reported in here has been corrected. The uniform buffer data size is now reported correctly. The other two bugs remain, unfortunately. Querying the primitive counter still gives zero, and glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB) still crashes the application.
Two more libs are available in the VS*L framework. With these new additions it is possible to use Assimp to load 3D models, and render them with core OpenGL. The libs store the meshes in VAOs, and use VSShaderLib and VSMathLib to simplify the rendering with shaders with almost any uniform variable configuration.
VSML has been renamed to VSMathLib. Too many libs in the pipeline to keep naming them with a single letter 🙂 The M stood for Matrix, yet as now the library also contains vector operations, I think the new name fits better with the content. Another addition is the availability of the normal and projection-view-model … Read more