Small update to the Delphi/Pascal OpenGL Header

 Posted on December 6, 2014  |  Sascha

Due to some user feedback, I’ve updated our delphi/pascal OpenGL header translation.

You can get it over at the bitbucket repository, and now finally with a proper markdown readme ;)

The changes include fixed type declarations for boolean types (so you can now finally write glDepthMask(GL_FALSE)), and some fixes for exception handling on 64-bit windows platforms.

opengl  delphi 

Javascript repository

 Posted on September 24, 2014  |  Sascha

Following Java (on Android) and C++ (on Windows), I just released my first Javascript sources over at my bitbucket repository. My first (ever) public JavaScript demo is the random dungeon generator that I wrote an article about (a long time ago). It generates random dungeons of different sizes and can be tested directly in your browser over here. Included are the JavaScript sources for the random dungeon generator that use HTML5 for drawing a simple representation of the randomly generated rooms and corridors. [Read More]
dungeon-crawler  bitbucket  javascript 

Delphi/Pascal OpenGL Header now supports OpenGL 4.5

 Posted on August 26, 2014  |  Sascha

With OpenGL 4.5 being released (and NVidia already having drivers out in the wild) I’ve updated our Delphi/Pascal OpenGL Header translation to the latest OpenGL version. You can always grab the most recent header translation from the bitbucket repository, where you’ll also find updates aside from the major OpenGL releases. If you’re missing anything from the headers, like a vendor specific extension missing, or want to give feedback just drop me a line. [Read More]
delphi  opengl  delphi-opengl-headers 

Soruces for simple OpenGL 2.0 HUD/GUI for android

 Posted on July 18, 2014  |  Sascha

As I’m currently prototyping a new game for Android, I was in need of a quick (and simple) way of adding some selectable text elements on top of my 3D OpenGL ES scene. So I created a simple demonstration with full source (you can get them from my OpenGL ES git repository) that renders a 3D scene and a basic hud with clickable text elements on top of it in orthogonal mode. [Read More]
android  java  opengl-es 

Android OpenGL ES repository

 Posted on July 12, 2014  |  Sascha

Following the C++ (OpenGL) repository, I recently added an Android OpenGL ES repositry (using Java) over here. It currently only contains two public demos, one for a simple stl viewer and another one for using the camera input of an android device as an OpenGL ES texture, but over time I plan on adding more and more demos. And though I used to mock Java in the past I really like coding with Java nowadays. [Read More]
android  opengl-es 

Enhanced C++ compute shader particle system

 Posted on June 19, 2014  |  Sascha

I’ve just added an OpenGL C++ repository over at bitbucket, and the first C++ demo is an enhanced port of the attraction based compute shader system from my last post. Sources : https://bitbucket.org/saschawillems/opengl-c Compiled win32 binaries : https://bitbucket.org/saschawillems/opengl-c/downloads/computeShaderParticleSystem_win32_bin.zip Compared to the Delphi version, the C++ version uses point sprites (instead of smoothed GL_POINTS), has a random color fade and allows for several user inputs : Note : This demo requires at least OpenGL 4. [Read More]
opengl 

Compute shaders for particle systems

 Posted on June 7, 2014  |  Sascha

Next on my list of new OpenGL functionality are compute shaders. They’ve been introduced into the GL core with 4.3, and pretty much allow you to do GPGPU directly in OpenGL without having to resolve to other APIs like OpenCL. So my first compute shader demo implements a (simple) attraction based particle system. It generates two shader storage buffer objects (SSBOs). One for particle positions and one for particle velocities, and the compute shader then accesses these SSBOs to calculate particle velocities depending on an attraction point (in this demo it’s the mouse cursor) and accordingly updates the particle positions. [Read More]
opengl 

GL_ARB_debug_output

 Posted on June 2, 2014  |  Sascha

I’ve just been playing around with GL_ARB_debug_output, a new extension introduced with OpenGL 4.3. This extension adds debugging capabilities to OpenGL, e.g. allowing you to have a callback fired by the OpenGL implementation that’ll inform you upon errors or even (heavily depending on the IHV) gives performance hints. I wrote a small sample (in Delphi) that demonstrates this new functionality. It creates an OpenGL 4.3 forward compatible context (no more legacy stuff) with debugging capabilites and displays debug messages from your OpenGL driver. [Read More]
opengl  delphi 

Delphi/Pascal OpenGL Header updated and on bitbucket

 Posted on May 9, 2014  |  Sascha

I just updated our Delphi / Pascal OpenGL Header to include the two missing extensions GL_ARB_sparse_texture and GL_ARB_bindless_texture introduced alongside OpenGL 4.4. And from now on you can always get the latest release from the repository over at github. Since the latest drivers for my GPU sadly won’t support OpenGL 4.4 (AMD dropped driver support for Vista, so maybe it’s finally time to upgrade) I haven’t been able to test the two new extensions. [Read More]
opengl  delphi  delphi-opengl-headers 

OpenGL hardware database updated

 Posted on April 28, 2014  |  Sascha

I finally got around uploading an almost complete new version of the OpenGL Hardware Database. Besides the new visuals, to bring it in line with the design of the OpenGL ES Hardware Database, it offers new functionalty like search boxes on almost every page, new listings like max. supported OpenGL version per device and much more. Another fine change allows you to call certain pages with parameters, so now you can create and share links for e. [Read More]
opengl  opengl-capsviewer