Jaton Video-107AGP3D, Руководство пользователя

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results in slower 3D pipeline operations between the CPU and
the graphics controller.
Q5 If we use powerful CPUs, such as a Pentium™ 200, can a
standard 2D graphics card achieve 3D performance?
Answer
Yes and no. Software rendering can take advantage of “tricks”
learned by force of necessity through years of trial and error.
With such stratagems, the speed of software rendering for
simple scenes can approach that of low-level hardware 3D
rendering. On the other hand, as scenes become more complex
(or frame sizes become larger), there are conflicts between
using the CPU for high-level game logic, geometry, lighting, and
rendering, all of which increase their demands. No current CPU
or system can perform advanced quality-enhancements (bilinear
filtering and alpha blending) in real time. Even general case
texture mapping with RGB lighting is too much for the current
CPU generation.
Q6 What does “software 3D” mean ?
Answer
Software 3D is generally used to mean using non-specific (2D)
hardware in conjunction with the CPU to render for 3D
applications. Some of these techniques allow usable 3D
applications when high-powered and/or MMX™-equipped CPU’s
are employed along with special-case software optimization
techniques. As stated above, SW 3D can achieve credible
results with today’s (software optimized) applications, but the
rising popularity of good 3D hardware at the consumer price
level is inexorably compelling the public to expect hardware
level scene enhancements and frame rates.
Q7 What is “SGRAM”?
Answer
Synchronous Graphics Random Access memory (SGRAM) is a
new and improved type of memory, custom-designed for
graphics use.
Q8 What is the advantage of SGRAM as compared to ordinary
DRAM?
Answer
SGRAM is now capable of running at much higher speeds than
Fast Page Mode or EDO DRAM. Also, SGRAM is able to
execute a small number of frequently executed operations, such
as buffer clears, specific to graphics applications, independently