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File Size: 36.4 MB
12 (4.24)
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The Alliance mixed-signal products business unit implements its products in groundbreaking applications including a proven EMI reduction technology that provides the industry's lowest power and smallest packaging. Having built a foundation of general-purpose EMI reduction devices, the division Alliance Semiconductor AT24 delivers a portfolio of clock and system timing devices to service a wide array of applications including LCD monitors, digital projectors, printers, game consoles, mobile computing devices and embedded system controllers.

Alliance Semiconductor AT24 Video Driver

Supported by strong executive leadership, joint venture relationships with top foundries, UMC and Chartered, and a world-class team of engineers, Alliance's market and customer insight keeps the company at the forefront of next-generation products. Alliance Semiconductor Headquarters Address: Public Industry: Technology Key Executives: Dan Reddy CFO: Any 3d rendering scenario should be performed in one pass. I Alliance Semiconductor AT24 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 Alliance Semiconductor AT24 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 Alliance Semiconductor AT24 say something in early 3D chip is broken, dissing 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 Alliance Semiconductor AT24 the monochrome dynamic lighting or stipple patterns used for all but one transparency mode.

Even specular highlights are done via stipple mask. All texture formats from palletized up to are supported.

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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".

Alliance Semiconductor ProMotion-AT24 drivers

And since AT3D does not use system 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. Gouraud shading is done full speed and geometry looks perspectively ok.

Alliance Semiconductor ProMotion-AT24 Drivers

Texturing however, is so warped it Alliance Semiconductor AT24 your accelerated games into chaos barfed all over your display. Perspective correction might have been very well implemented without performance penalty, but somehow at the end all important textures are not adjusted.

It reminds me of certain quadrilateral texturing chip trying to render triangles. Such artifacts also prevents closer inspection of Alliances Pseudo Bilinear texture filtering.

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Let me just say if often exposes problems in the style of Trident 3DImage. Normally such image quality would disqualify the card from benchmarks, but just to get some idea of it's performance I measured few Alliance Semiconductor AT24 that were recognizable. Modern art lovers should enjoy the impressive gallery.


That is the fun of early 3d accelerators. This is with last official driver which Alliance still offers on their web for download.

bit card with MPEG-1 acceleration. Vlask's card: ProMotion aT24ProMotion aT24 ProMotion aT24ProMotion aT Alliance Semiconductor AT3D.

Logo of Alliance is on many memory chips of the nineties. Their ProMotion line of 2D graphics also did not fail, but were not.

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