Jaton Video-107AGP3D, Руководство пользователя

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cache, and command FIFO that optimize memory bandwidth
and maximize graphics performance.
2.12 Full Feature High Performance 3D Engine
The Video 107AGP 3D & TV is equipped with an advanced
Graphics Drawing, Single Cycle 3D Graphics Engine that
performs premium 3D functions at a high level of more than
1M triangles per second. The 3D engine supports Microsoft
®
Direct3D. The 3D Engine is set up to off-load the CPU from
major 3D tasks including slope calculation, sub-pixel
positioning, and Tri-striping. By balancing 3D pipe line and
reducing parameter passing, the Video 107AGP 3D & TV
approaches the high levels of performance. The 3D engine is
integrated with a triangle set-up engine that sets up triangles
according to the input data of triangle vertex and
accomplishes various functions for 3D rendering. Gouraud
shading provides smooth shading for colors across surfaces,
perspective correction texture mapping to correct texture data
based on the perspective, bi-linear texture filtering for
interpolating, alpha blending to compensate colors for the
opacity of two colors blended, Z-buffering (16-bit/24-bit), video
texturing to overlay 2D video play-back onto 3D images,
fogging to simulate weather effects, palletized texture
mapping (1-, 4-, or 8-bit) for memory and bandwidth
reduction, and anti-aliasing to reduce or eliminate jaggies
resulted from alias rendering. The 3D engine also works with
the APM system, conserving power while the 3D operations
are suspended.
2.13 TrueVideo® Processor
The Video 107AGP 3D & TV, with an integrated Video Display
and a Capture Engine, supports dual apertures on the PCI
bus which enables independent graphic and video data to be
transported simultaneously to and from different memory
areas and greatly accelerates the performance of both
DirectDraw™ and DirectVideo™. The Video 107AGP 3D & TV
can provide dual video windows that display different images
from different video sources (from the PCI bus and from the
capture port) on the same screen. The video image is stored
in the off-screen memory and is retrieved by the Video Display
Processing block for TrueVideo®
processing.
With the help of DirectDraw™ acceleration for sprites, page
flipping, double buffering, and color keying, TrueVideo®
processing is performed by utilizing Trident’s proprietary edge
recovery algorithm for sharper line visibility, de-interlacing,
anti-tearing, multitap horizontal filtering, dithering, and scaling