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Computer Graphics

5. The rasterization is a process wherein all the triangles are filled with pixels known as fragments.
Fragments can result in a frame buffer if there is a change or if it is not hidden.
6. The occlusion is a stage in which the pixels that are hidden are removed.

7. The parameter interpolation is a process in which the values of each pixel that were rasterized are
computed on the basis of color, texture, and fog.
8. The pixel shader stage is the stage wherein the texture and final colors are added to the fragments.
9. The pixel engine is the stage in which mathematically the final color, its coverage and
transparency is combined. The result is a depth value for the pixel.
10. The frame buffer controller stage is the last stage which acts as an interface to the memory used to
hold the actual pixel values as displayed on the second screen.

Figure 7.7 illustrates operations on primitives in the standard direct rendering

graphic pipeline.

Figure 7.7: Operations on Primitives in the Standard Direct
Rendering Graphic Pipeline.

Source :
http://docs.google.com/viewer?a=v&q=cache:pBO3osoKvBEJ:graphics.cs.aueb.gr/cgvizbook/slides/CGVIZ_Unit_
1.pdf+graphic+pipeline+algorithm+%282-
D%29&hl=en&gl=in&pid=bl&srcid=ADGEESibvWTGkvSDJHqKY4KSinleD5yeDYYosXTGmEWs3zinC9z4qejXM8A
rGW-cSamvNHDRlzHER_Dvzn_6Vsc1ilHKXHRstK2f7mDchJHqGwr97sGx7BJvZM-
GnU50AUZtjJ9dEAnq&sig=AHIEtbSMHAGSzELxiTpAAwc9dTfUYMmSpg

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