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Define Octrees?
Hierarchical tree structures called octrees, are used to show solid objects in some graphics systems. Medical imaging and other applications that needs displays of object cross sections commonly use octree representation.
Parallel Projection In parallel projection, objects in scene are projected onto the 2D view plane along rays parallel to a projection vector. Parallel projection is orthogra
What do you mean by scan conversion? A main task of the display processor is digitizing a picture definition given in an application program into a set of pixel-intensity valu
What is a dot size? Dot size may be explained as the diameter of a single dot on the devices output. Dot size is also known as the Spot size.
What is surface patch? A single surface element can be explained as the surface traced out as two parameters (u, v) take all possible values between 0 and 1 in a two-parameter
Important Notes for Negative Accelerations Note : Having projections of points on curve, above Y axis we will obtain a pattern similar to figure 8 that is needed to produce ne
Curve segment - properties of bezier curves Note : 1) The joining point on the curve along w.r.t. the parameter based upon second derivates of Q(t) is the acceleration. Wh
What is the maximum number of objects such can be handled via the depth/z- buffer algorithm? Solution : In z-buffer algorithm, an arbitrary number of objects can be handled sin
Basic Ray Tracing Algorithm - Polygon Rendering The Hidden-surface removal is the most complete and most versatile method for display of objects in a realistic fashion. The co
Hypermedia: it is a superset of hypertext. Hypermedia documents comprise links not only to the other pieces of text, although also to other forms of media: sounds and images and m
difference between vecgen and breshnam algorithm
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