Type: Driver
File Name:
File Size: 16.5 MB
9 (3.48)
Downloads: 9
Supported systems: Windows Vista, Windows Vista 64-bit, Windows XP 64-bit, Mac OS X, Mac OS X 10.4, Mac OS X 10.5
Price: Free* (*Free Registration Required)

Download Now

The chip was capable of bilinear texture filtering, perspective correction, using palletized Alliance ProMotion AT253D for saving memory, alpha-blending, z-buffering limited to x pixels and a few other neat tricks not too common in the 3D world back then.

Alliance Semiconductor AT3D review

The two things that set the Voodoo Graphics apart from anything else in its class was 3dfx' easy-to-use proprietary programming language called Glide and the ability to run in configurations consisting of up to 6 chips - as far as I know. Each pixel processor could communicate with three Alliance ProMotion AT253D chips, or so say my friends at Beyond3d.

The prohibitive cost of these setups prevented them from appearing in the consumer space. Here you can find a copy of the original I suppose press release 3Dfx issued on November 6th, Some interesting passages: Designed to enable a new class Alliance ProMotion AT253D realistic and highly interactive 3D games, Voodoo Graphics offers expanded capabilities above and beyond the basic 3D functionality that will be found in commodity Windows and multimedia accelerators. Major consumer and coin-op OEMs and developers have announced support for the chipset. The support we're receiving from the industry indicates our course of action is the right one. In the coin-operated entertainment market Data East and Jaleco have announced support and are developing next generation arcade games utilizing Voodoo Graphics.

Voodoo Advantage "All of the graphics processors that have been introduced for the PC barely meet the basic requirements for 3D," said Gary Tarolli, vice president and chief scientist, 3Dfx Interactive. Alliance got more attention from gamers when their graphics cores were chosen for Voodoo Rush boards supporting 3D only chipset of 3Dfx. Technical specs says that Alliance chips got a special 64 bit bus for fast communication with Rush. Let me guess, they split the bit bus into two.

Alliance Semiconductor Drivers Download Center

They sure feel better than MX, but I am not benchmarking 2D. Alliance promised all-in-one solution for new multimedia age. The chip also supported odd sizes of 1.


Removing the expansion memory would make the EDO work in single cycle mode rather than interleaved. DirectX5 driver 2.

Alliance Semiconductor ProMotion - AT25 3d Ver PCI video card 4mb RAM eBay

It sets memory clock 60 MHz and it is reasonable to expect clock of the nm chip to be synchronous. Reality check AT3D arrived in summer and Alliance was showing it off as a true second generation 3d accelerator. Any 3d rendering scenario should be performed in one pass. I am of course testing pure AT3D board. Specifications promised a fine piece of 3D accelerator, press announcement and datasheet would make you think you cannot go wrong. Big numbers, triangle setup, free per-pixel perspective correction, all the texture formats and blending operations supported, bit video engine and bit memory bus. And then you fire up the card, play games and everything is broken. Many people often say something in early 3D chip is broken, Alliance ProMotion AT253D the likes of TridentRage or even Riva But only after you see AT3D in action, you will know how much broken can things be.

It is not only the monochrome dynamic lighting or stipple patterns used for all but one transparency mode. Even specular highlights are done via stipple Alliance ProMotion AT253D. All texture formats from palletized up to are supported. True color textures are full speed and true color buffer is also possible with a small performance penalty.


However, at such depth only palletized textures may be blended "properly". And since AT3D does not use Alliance ProMotion AT253D memory there is with 4 MB little hope for true color rendering at higher resolutions. Could it mean AT3D is tiling the scene?

Frankly, I have no idea, datasheet also mentions Z-buffer compression, but the card does not behave like if it has more memory than others. Cheaper version of ProMotion aT3D without 3D core. 4MB version is detected as aT3D (61MHz 64bit) and shares same PCB - probably Alliance ProMotion AT253D overmarked chip sold as 2D only solution.

This card made my and my twin-brother childhood - in PAIN. Logo of Alliance is on many memory chips of the nineties. Their ProMotion line of 2D graphics also did not fail, but were not exactly famous either. The company.

Other Drivers