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Q: What algorithm is considered reasonable for managing a buffer cache?
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Explain the Z-Buffer algorithm for removing hidden surfaces?

Depend on the memory availability


What is depth buffer method?

The Z-buffer algorithm is a convenient algorithm for rendering images properly according to depth. To begin with, a buffer containing the closest depth at each pixel location is created parallel to the image buffer. Each location in this depth buffer is initialized to negative infinity. Now, the zIntersect and dzPerScanline fields are added to each edge record in the polyfill algorithm. For each point that is to be rendered, the depth of the point against the depth of the point at the desired pixel location. If the point depth is greater than the depth at the current pixel, the pixel is colored with the new color and the depth buffer is updated. Otherwise, the point is not rendered because it is behind another object.


What part of the dialysate is considered to be the buffer?

Bicarbonate (HCO3)


Which of the following used to be considered a buffer state?

switzerland


A reasonable conclusion based on observations?

facts or assumptions. Lake Minnetonka contains a buffer, but Upper Kintla Lake does not.


Which buffer pairs is considered the major plasma buffering system?

what pair is considered the major plasma buffering system


What happens when two polygons have the same z value and the z-buffer algorithm is used?

the pixel intensity in final image will be of the surface last scanned if the z value is same.


Why was Georgia considered a buffer colony?

Yes. James Ogelthorpe created it for people who were in debt.


Why was Canada considered a buffer state in the Cold War?

A Buffer State is a country that is neutral but sits between two countries with conflict. During the Cold War The US and the Union of Soviet were in turmoil but the Soviets would have to cross into Canadian air space to get to the US. Therefore making Canada the Buffer.


What is difference between A buffer algorithm Z buffer algorithm?

A z-buffer is a raster buffer that stores color and depth information at each pixel. The "z" in the title refers to the "z" plane in 3D space, which is traditionally thought of as the "depth" dimension.The buffer initializes each pixel to the default color and an infinite depth. During the rendering process, when a color is written to a pixel, it first compares the current depth of the color in the pixel. If the new color is closer than the current color but closer than the clip plane (which is typically zero), the color is written and the depth updated.In that sense, it's similar to the painter's algorithm, where the closer object covers the further object.Here's the basic algorithm:WritePixel(int x, int y, float z, color c)if ( z < zbuffer[x][y] && z > 0 ) thenzbuffer[x][y] = z;frameBuffer[x][y] = color;endThe a-buffer uses the same algorithm for handling depth, but adds anti-aliasing. Each pixel contains a set of sub-pixels. During the write operation, the values are accumulated at the sub-pixel level. For the final pixel read, the final color is the sum of all the sub-pixels.The algorithm was originally developed by Loren Carpenter (or Pixar) for the RenderMan renderer. The position of the sub-pixels in each pixel are randomly selected in space and time, which allows smooth blurring of moving objects. RenderMan dices geometry down to micropolygons (polygons approximately the size of a pixel), and then performs a coverage test to determine if a sub-pixel is covered by a micro-polygon.However, this approach doesn't work with a more "typical" renderer, since they typically deal with points, which unlike micropolygons, have no surface area.A common adaption of this algorithm is the accumulationtechnique, which renders an image multiple times, randomly jittering (moving) the position of the eyepoint by some small amount. The result of each rendering is accumulated and averaged into single buffer. This approach is made practical with a hardware accelerated renderer such as OpenGL. However, this approach is probably better thought of as supersampling rather than an a-buffer.


What is pinned buffer in oracle?

The buffer is in used is called as pinned buffer


What do you mean by voltage buffer?

A voltage buffer is a circuit that will buffer a source from an output.