Monthly Archives: September 2008

Horizon-Based Image-Space Ambient Occlusion

NVIDIA has published a new paper from SIGGRAPH 2008 about HBAO (Horizon-Based Ambient Occlusion), an innovative improved form of screen-space ambient occlusion (SSAO). From the paper, HBAO seems to be easily integrable into an existing game engine:
– Input Data = eye-space depths and normals
– Rendered in a post-processing pass


The paper is available here: Horizon-Based Image-Space Ambient Occlusion: from SIGGRAPH 2008

Fraps 2.9.5 Released – Video Capture and Benchmarking Tool

Aaahh at last, a new version of Fraps is available. Fraps is a Windows application that makes it possible to benchmark and screen-capture (image or video) Direct3D or OpenGL applications.

You can download Fraps here: Fraps 2.9.5


Fraps 2.9.5 Changelog:

  • Added Stereo & Multichannel recording options for Direct Stream audio in Vista
  • Added support for many DDRAW games running in windowed mode
  • Added support for games that use multiple swapchains in D3D9
  • Added large size icon for Vista
  • Fixed slow video capture speeds recording many older DDRAW games
  • Fixed capture crash for DDRAW games in XP SP3
  • Fixed misaligned audio with Vista Direct Stream when sound was silent
  • Fixed 64-bit OpenGL apps not being detected
  • Fixed long delay starting video capture on some Vista configurations
  • Fixed crash in Fraps if video capture key pressed quickly in succession
  • Fixed Fraps exit dialog appearing at random intervals
  • Fixed “This program might not have installed correctly” error in Vista
  • Fixed corrupted volume slider in Vista when Fraps loaded
  • Fixed scrambled colors when recording in 8-bit and 16-bit from some older games
  • Fixed crash loading levels in Wolfenstein: Enemy Territory

AMD FirePro V8700 and FirePro V3750

ATI/AMD introduced two new workstation graphics cards: the FirePro V8700 (the most powerful) and the FirePro V3750. These cards are targeted for Computer Aided Design (CAD) and Digital Content Creation (DCC) professionals.

FirePro V8700 Main Features:
– GPU: RV770 based
– Shader Processors: 800
– Memory: 1Gb GDDR5
– DirectX 10.1 and OpenGL 2.1

FirePro V3750 Main Features:
– GPU: RV730 based
– Shader Processors: 320
– Memory: 256Mb GDDR3
– DirectX 10.1 and OpenGL 2.1


[source]

Hacking Radeon HD 4800 Series Profile XML File

TechARP shows us how to create a profile for your Radeon HD 48xx with ATI Catalyst Control Center and how to edit it manually (the profile is saved as a XML file).


In Windows Vista, the profile is placed in “C:\Users\Your Windows ID\AppData\Local\ATI\ACE\Profiles\”

In Windows XP, you will find the XML profile file in “C:\Documents and Settings\Your Windows ID\Local Settings\Application Data\ATI\ACE\Profiles\”.

ATI Radeon HD 4670 Review

With 320 stream processors, 32 ROPs, 32 texture units, a RV730 GPU, DirectX 10.1 and OpenGL 2.1 support and a price under USD 80.-, the ATI Radeon HD 4670 seems to be the new mainstream graphics card. The Radeon HD 4670 has a serious amount of horsepower for a minimal investment, which makes this card a great choice for many types of users, including casual gamers, gamers on a budget, or HTPC aficionados that also do some gaming on their systems.

Read the complete review here: ATI Radeon HD 4670, Redefining The Mainstream

ECS GeForce 9800 GTX+ Hydra SLI Review

ECS GeForce 9800 GTX+ Hydra SLI is kit that contains two modified GeForce 9800GTX+ and a water-cooling kit. Guru3D got this kit and has published a 16-page review: ECS GeForce 9800 GTX+ Hydra SLI Review.

The Verdict:

I like the ease of use, easy installation and the cooling performance.

But the kit is really efficient, cools pretty fantastic and as a result, though you now have two cards rendering your games, you can even overclock with a very healthy safety margin.

My favorite game at this very moment is Mass Effect. I play it at 2560×1600 with the image quality settings as defined in this review. With one GTX+ card still averages at 37 frames per second (which already is bloody nice for the money), however with that second GTX+ added I end up at an average FPS of 70. It is an excellent modern title that shows Multi-GPU gaming potential so well with. And that’s where you need to seek the true benefit, modern games.

NVIDIA NVAPI Released!

NVIDIA has at last released the NVAPI. NVAPI is NVIDIA’s core software development kit that allows direct access to NVIDIA GPUs and drivers on all windows platforms. NVAPI provides low-level control over GPU features not typically found in graphics APIs, such as management of SLI, driver control, overclocking.


I guess an update of GPU Caps Viewer will be available soon…