Even specular highlights are done via stipple mask. Big numbers, triangle setup, free per-pixel perspective correction, all the texture formats and blending operations supported, bit video engine and bit memory bus. Removing the expansion memory would make the EDO work in single cycle mode rather than interleaved. Alliance promised all-in-one solution for new multimedia age. All other trademarks are property of their respective holders. This controller incorporates the fast bit 2D engine while simultaneously integrating TV output with a three line flicker filter and downscaler. I am of course testing pure AT3D board.
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Alliance manufactures many of its products using advanced 0. But only after you see AT3D in action, you will know how much broken can things be.
Big numbers, triangle setup, free per-pixel perspective correction, all the texture formats and blending operations supported, bit video engine and bit memory bus. If it could work properly with at least similar speeds as measured here those chips with prices as low as 20 bucks, then it could find happy buyers.
The Company designs, develops, and markets its products to the desktop and portable computing, networking, telecommunications and instrumentation markets.
Gouraud shading is done full speed and geometry looks perspectively ok. In summer of the company ended all support for graphics technologies and continued business only with memory and embedded electronics.
Perspective correction might have been very well implemented without performance penalty, but somehow at the end all important textures are not adjusted.
I am of course testing pure AT3D board. Company Information Alliance Semiconductor Corporation is a leading worldwide supplier of high performance memory and memory intensive logic products. This engine performs geometry setup in hardware which enables the main CPU to perform more critical tasks.
Alliance Semiconductor AT3D
All texture formats from palletized up to are supported. Such artifacts also prevents closer inspection of Alliances Pseudo Bilinear texture filtering.
I was too disgusted to measure games again, though. It reminds me of certain quadrilateral texturing chip trying to render triangles.
It is not only the monochrome dynamic lighting or stipple patterns used for all but one transparency mode. The ProMotion core meets the most demanding 2D and video requirements, featuring a fast bit internal drawing engine; DVD and live video input port VMI ; video playback acceleration, including full bilinear filtering; and hardware gamma correction at25/atd chroma correction.
Specifications promised a fine qt25/at3d of 3D accelerator, press announcement and datasheet would make you think you cannot go wrong. It sets memory clock 60 MHz and it is reasonable to expect clock of the nm chip to be synchronous.
Alliance Press Release
Alliance had more plans with this architecture. This is with last official driver which Alliance still offers on their web for download. Alliance will wt25/at3d to provide innovative, industry leading solutions for the multimedia market.
The Alliance multimedia accelerators are supported by a robust driver suite which has undergone extensive testing. Their ProMotion line of 2D graphics also did not fail, but were not exactly famous either. And since AT3D does not use system memory there is with 4 MB little hope for true alluance rendering at higher resolutions. The chip also supported odd sizes of 1. Alliance ah25/at3d not give up on 3d after this disaster and announced another bit architecture: True color textures are full speed and true color buffer is also possible with a small performance penalty.
Technical specs says that Alliance chips got a special 64 bit bus for fast communication with Rush. Even specular highlights are done via stipple mask. That is the fun of early 3d accelerators.
All features supported by the engine can be used simultaneously, with only one rendering pass required for prkmotion combination. Any 3d rendering scenario should be performed in one pass. And then you fire up the card, play games and everything is broken. Results Performance is not the worst, but it is not impressive either.
Usually AT3D fails to deliver on the promise of 30 frames per second at xx