Tag Archives: gamedev

ATI Catalyst 8.10 Fixes the Displacement Mapping Bug in OpenGL

Great news! At last, ATI has fixed the displacement mapping bug. Now you can do vertex texture fetching in your vertex shaders with a Radeon! And GPU Caps Viewer is happy:

More information about vertex displacement mapping here: Vertex Displacement Mapping in GLSL Now Available on Radeon!.

You can grab the Catalyst 8.10 BETA from here: Catalyst 8.10 BETA.

I wonder if ATI will write this bugfix in the release notes… Anyway guys, this new release of Catalyst seems to be a great version…

DevIL 1.7.1

DevIL (also called OpenIL) seems to re-birth after almost two years of silence. DevIL is back in a new version 1.7.1. Developer’s Image Library (DevIL) is a cross-platform image library utilizing a simple syntax to load, save, convert, manipulate, filter and display a variety of images with ease.

More information here: DevIL’s homepage


As soon as possible I’ll publish a VS2005 C++ project with OpenGL and DevIL. Stay tuned…

NVIDIA ForceWare 177.89: OpenGL Extensions and OpenGL 3.0 Code Sample


[French]
Voici la liste des extensions OpenGL supportées par les pilotes Forceware 177.89 WinXP 32 pour une GeForce GTX 280.
[/French]
[English]
Here is the list of OpenGL extensions supported by Forceware 177.89 WinXP 32 drivers for a GeForce GTX 280.
[/English]

[French]
Les ForceWare 177.89 sont les premiers pilotes à offrir le support OpenGL 3.0. Mais pour le moment, ce support n’est pas officiel. Il faut l’activer de manière logiciel grâce à l’utilitaire NVemulate de NVIDIA:


L’activation d’OpenGL 3.0 donne accès à une nouvelle extension WGL_ARB_create_context qui permet de créer un context de rendu OpenGL 3.0. Si vous souhaitez ouvrir la porte d’OpenGL 3.0, voilà le code nécessaire:
[/French]
[English]
Forceware 177.89 are the first drivers to offer the OpenGL 3.0 support. But currently, this support is not official. We have to enable it thanks to NVIDIA’s NVemulate utility:


OpenGL 3.0 activation gives an access to a new extension: WGL_ARB_create_context.
This extension makes it possible to create an OpenGL 3.0 rendering context. If you wish to explore the new world of OpenGL 3.0, here is the necessary code:
[/English]

// wglCreateContextAttribsARB prototype.
typedef HGLRC (APIENTRYP PFNWGLCREATECONTEXTATTRIBSARBPROC)\
(HDC, HGLRC, const int*);
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;

// Get a pointer on the create context func.
wglCreateContextAttribsARB = \
(PFNWGLCREATECONTEXTATTRIBSARBPROC) \
wglGetProcAddress("wglCreateContextAttribsARB");

// Create an OpenGL 3.0 context.
HGLRC gl3Ctx = wglCreateContextAttribsARB(dc, 0, NULL);

//
// Do something with this opengl 3.0 rendering context.
//

// Delete the context
wglDeleteContext( gl3Ctx );	
gl3Ctx = NULL;				

[French]
Ceci étant dit, voilà la liste des nouvelles extensions pour un contexte de rendu OpenGL 2.1 avec support OpenGL 3.0 activé:
[/French]
[English]
That said, here is the list of the new extensions for an OpenGL 2.1 rendering context with OpenGL 3.0 support enabled:
[/English]

[French]Carte graphique utilisée[/French]
[English]Graphics card used[/English]: EVGA GeForce GTX 280 / 1Gb

– Drivers Version: Forceware 6.14.11.7789
– OpenGL Version: 2.1.2
– GLSL (OpenGL Shading Language) Version: 1.20 NVIDIA via Cg compiler
– OpenGL Renderer: GeForce GTX 280/PCI/SSE2
– Drivers Renderer: NVIDIA GeForce GTX 280
– ARB Texture Units: 16
– Vertex Shader Texture Units: 32
– Pixel Shader Texture Units: 32
– Geometry Shader Texture Units: 32
– Max Texture Size: 8192×8192
– Max Anisotropic Filtering Value: X16.0
– Max Point Sprite Size: 63.4
– Max Dynamic Lights: 8
– Max Viewport Size: 8192×8192
– Max Vertex Uniform Components: 4096
– Max Fragment Uniform Components: 2048
– Max Varying Float: 60
– Max Vertex Bindable Uniforms: 12
– Max Fragment Bindable Uniforms: 12
– Max Geometry Bindable Uniforms: 12
– MSAA: 2X
– MSAA: 4X
– MSAA: 8X
– MSAA: 16X
– MSAA: 32X

OpenGL Extensions: 168 extensions

[French]
Les extensions des anciens pilotes ForceWare se trouvent ICI.
Vous pouvez utiliser GPU Caps Viewer pour récupérer la liste des extensions de votre carte graphique.
[/French]
[English]
The extensions exposed by the old ForceWare drivers are HERE.
You can use GPU Caps Viewer to retrieve the list of extensions of your graphics card.
[/English]

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Real Time Realistic Rendering of Nature Scenes

A thesis about real-time realistic rendering of nature scenes with dynamic lighting has been published. This thesis includes all details about real-time grass rendering and about real-time tree rendering with indirect lighting.

You can grab the thesis here: PhD thesis


It’s a pity there is no real-time 3D demo. Screenshots are cool but a real demo is better!
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[via]