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With the development of 3D technology, 3D application software (especially 3D games) in large numbers, so we are talking about 3D graphics accelerator card to become a hot spot in recent years, with the rapid development of hardware technology, and Microsoft Direct3D introduced, but also accelerated 3D graphics card market a lot of pace. Previously only in high-end
With the development of 3D technology, 3D application software (especially 3D games) in large numbers, so we are talking about 3D graphics accelerator card to become a hot spot in recent years, with the hardware technology the rapid development and introduction of Microsoft's Direct3D, but also accelerated 3D graphics card market a lot of pace. Previously only in high-end graphics workstations and special computer to see these graphics cards, today has gradually come into my office and home. 3D graphics accelerator that will soon become the sound card and CDROM multimedia computer after yet another standard.
3D accelerator card and related technology solutions, they tend to frequently experience some abstract terms, the current special launch
3DAPI3D application interfaces in order)
APIApplicatProgramInterfac abbreviations. API collection of many programs, a 3DAPI designed to allow programmers to 3D software, as long as the order of API calls, API and hardware device drivers will automatically communicate the order to start the 3D powerful 3D graphics chip disposal function. Currently there are several mainstream 3DAPI DirectXOpenGL3DRRenserWarBRenderGlide/3Dfx and QuickDraw3DRave and so on.
DirectX
Microsoft for PC game development API feature is relatively easy to control, so video card to play different functions, and Window95 and WindowNT operating system compatibility, and is now essentially free after the use of hard to say the DirectX5 .0 CPC six parts: DirectDraw video output management game, Direct3D management game, 3D graphics,
cheap designer handbags, DirectPlai management game of network communications, DirectSound management of the game sound output, DirectInput management game joystick control, DirectSetup management game device.
OpenGL open graphics interface)
by the SiliconGraphic company (ie the famous SGI development, can Window95WindowNTMacoBeoOS / 2 and Unix API on the application of graphics operations in addition to providing many functions, but also provided a lot of graphics processing. As an early start in OpenGL, has been used for high-end graphics workstations, 3D graphics capabilities of its very strong, beyond many DirectX can maximize WooDooPOWERVR so super great potential for 3D chip. So many game development company and graphic software development company urged Microsoft to add the next version of Window for OpenGL support. At present,
Can only set an active partition the hard disk, this reasonable request has been accepted by Microsoft, will support both DirectX and Window98 OpenGL
ALPHA BIENDINGALPHA value of the post-processing)
simply say this is a clear sense of place to 3D object technology. A 3D object displayed on the screen, each pixel is usually accompanied by red,
The origin of the registry, green, and blue (RGB value of the three groups. If the 3D environment, allowing pixels to have a group of Alpha value, said it has a value of recorded pixels AlphaChannelAlpha transparency. In this way so that each object can have different transparency levels. Alphablend this function, that is, dispose of the two objects on the screen superimposed on the screen when the Alpha value will be taken into account, it showed close to real-world results.
Antialias antialiasing)
application of color jagged edge graphics technology,
DEPTHCUEING depth of field effects processing)
depth of field processing is the time when the object is away from the observer to reduce the color and brightness of an object function. For example, when an object is farther away from my eyes, the look will become increasingly blurred.
FOGEFFECT atomization processing)
name implies, a designated function is to create an area shrouded in smoke into effect, designers are free to adjust the order of the scope of the fog, horizontal, color and other parameters, and then by the 3D chip is responsible for the results calculated.
DepthCue and FogEffect function, for determining the
HEIDI
Heidi positioning in the development of many aspects of 3D graphics applications, play an important role in coordinating action, proposed by the Autodesk company's specifications. Work on the management of graphics, such as rendering, coloring, copying and other operations, as well as the transfer of information within, Heidi provides applications a dynamic organizational structure of management. Currently, the application of the system by the order of Heidi, a Kinetix3DStudioMA X animation sequence, and Autodesk's WHIP for the accelerated development of AutoCA DR13 drive order.
MIPMA PPING map handling)
display 3D images, MIP map handling is very important. The texture mapping technique, based on the requirements of different precision, different versions of the materials used for mapping patterns. When the object closer to or away from the observer, it will paste the object surface pattern corresponding to the material, then let the object showing a more realistic effect. For example: the object is moving away, according to this disposition, the order will be affixed with a more simple and less detail of the material pattern, and to improve the overall efficiency of graphics disposal.
SHA DINGFLA TGOURA UDANDTEXTUREMA PPING coloring disposal: flat shading,
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the vast majority of 3D objects by polygons (polygon constituted to go through some of the coloring treatment, we will be in line structure (wireframe show his face. Flatshade the simplest and most rapid coloring methods,
prada handbags, each polygon will be assigned a single and did not change color. This approach, although it will produce false results, but very suitable for fast imaging operations (quickrender speed and other requirements place emphasis on the detailed level. GouraudShade to a little bit better. polygon Each point on a set of specified colors will be (hue values, while on a polygon with smooth color gradient.
TEXTUREMA PPING textures)
the most striking objects in color, is the most realistic approach, but also mostly used in current games. A flat image (which may be digital images, a small icon or bitmap bitmap) will be affixed to the polygons.
VIDEOTEXTUREMA PPING dynamic texture mapping)
currently the best texture effect, with such features graphics accelerator card, using high-speed image disposal, will be a continuous image (which may be real-time operations or from an AVI or MPEG files) to material The method of disposal, and then paste it into 3D object looks up. For example, in racing games, the windshield the sky posted a continuous animation, you can make a similar environment map reflecting the effect of real-time (computer based).
PERSPECTIVECORRECTION perspective angle correction processing)
After
to make a texture treated with 3D objects very real appearance, this disposition is indispensable. Mathematical approach used to ensure that attached to the object of the local image maps will be posted to the direction of the right perspective the loss of convergence. As this work is very dependent on handler, so in terms of a new generation of 3D accelerators,
louis vuitton monogram, this feature is also very important. With 3D graphics accelerator, the real effect of competence persist. The 3D adventure game sweeping the world, Figure II opened the 3D accelerator on the
TEXTUREMA PINTERPOLA TION image interpolation processing or filtering material processing)
when the material was posted to the screen shows a 3D model,
mulberry handbags, the material handler decided that each pixel must be affixed to the pixel location. Because the material is 2D image, while the model is a 3D object, so the range of pixels and pixel range is usually not a good fit. At this point the pixel map to solve the problem, you have to deal with the interpolation to solve. The way this treatment is divided into three: NearestNeighborBilinear and Trilinear
NEA ESTNEIGHBOR neighbor sampling disposal)
a relatively simple interpolation image in the manner of disposal. Use the most part plan, including pixel map has always been. This disposition is faster, often used 3D game development, but the graphic quality is poor.
BILINEA RLNTERPOLA TION bilinear interpolation processing)
a better texture image interpolation approach, to first find out the last of the four pixels pixels, and then fill in the difference between the results for the last occurrence of the results will be posted to the pixel position, so to prevent large pieces of pixel rendering to see on the screen, like graphics in the observation often occurs close mosaic they also do not apply to moving objects. or the use of there is a clear mosaic
PILNEA RLNTERPOLA TION tri-linear interpolation processing)
a more complex texture image interpolation approach. Will use a lot of texture image, and each will be exactly the size of a quarter of another. For example: a texture image is 512,512 pixels, the second would be 256,256 pixels, the third is 128,128 pixels. . . So, the smallest one is 11 to use these multi-resolution texture image, when faced with darker scenes, large (such as flight simulators) can provide high-quality texture effects. Bilinear Trilinear interpolation processing needs disposal greater than the amount of computation and memory clock need for greater bandwidth. But TrilinearInterpol can provide the highest quality texture.
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FRA MERA TE frame rate)
the screen refresh rate, in units of frames per second FPS) FPS the higher the screen more smoothly.
FRA MEBUFFER graphics frame buffer)
mainly used to store the region can display graphic information, determines the maximum resolution that can be displayed and the maximum color number.
DOPTHBUFFERING double buffer disposal)
overwhelming support OpenGL3D screen graphics accelerator card will provide two sets of information, a group show, another set of spare, these two sets of graphic screen information is often looked at frontbuffer and backbuffer This feature allows graphics card is stored with frontbuffer This display frames, while frames are already backbuffer the next stand. Buffer and then swap the two graphics cards, backbuffer screen display in,
The most commonly used shortcuts Windows operating, and also again in the next frame frontbuffer stand in a good painting, and so form a complementary way of working, the screen quickly respond to rapid change.
RA MDA C memory digital-analog conversion speed)
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that the memory on the graphics data into the display pixel visible light point conversion speed, measured in MHz higher the speed of its work, the more wide-band, high-resolution picture quality when possible.
ZBUFFERZ cache)
computer
3D environment, each pixel data using a set of pixels used to define the degree of depth in the display (ie Z-axis coordinate values) ZBuffer higher number of bits used, the representative of the graphics card provided by the Object feeling of depth and the more accurate. 3D accelerator card can only be general support to the 16-bit or 24-bit ZBuffer 3D models for the general purposes of this,
mulberry bags, too, but enough advanced 3D card can support 32-bit ZBuffer to contain many objects connected to a more complex The 3D model can have more digits to express the depth of feeling is very important to avoid flicker phenomenon.
ZBUFFERINGZ cache handling)
ZBuffer render an object, the implementation of This article comes from:
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