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Translation, Rotation and Scaling - output primitives
1. Two basic approaches used in character generation are - Bitmap method and outline method.
2. All 2D geometric transformations can be obtained by using appropriate combinations of three primitive transformations (i) translation (ii) rotation (iii) scaling. Shear and reflection are two important transformations which can also be derived from primitive transformations. But looking into their vast applications, they are discussed separately and are treated as primitive transformations in many graphics packages.
Vanishing Point - Viewing Transformations This point is that point at those parallel lines shows to converge and vanish. A practical illustration is a long straight railroad
Multimedia- It is a new aspect of literacy which is being recognized as technology expands the manner people communicate. The principle of literacy increasingly, is a measure of th
Distinguish between window port & view port? A portion of a picture that is to be displayed by a window is called as window port. The display area of the part selected or the f
Determine the transformation matrix for the reflection about the line y = x. Solution: The transformation for mirror reflection regarding to the line y = x, comprises the subs
what are three features to use to create your flyer to market?
Important point about the De casteljeau algorithm 1) Bezier Curve: P (u) = ................ (1) Here B n,i (u) = n c i u i (1 - u) n-i ..
Illustration: Find the normalization transformation N that uses the rectangle W (1, 1), X (5, 3), Y (4, 5) and Z (0, 3) as a window and also the normalized device screen like the
To prove: P (u = 0) = p0 Solution : = p 0 B n,0 (u) + p 1 B n, 1 (u) +...... + p n B n, n (u)...............(1) B n,i (u) = n c i u i (1 - u) n-i B n,0
refreh buffer
Perspective Distortion - Polygon Rendering and Ray Tracing Methods Anomalies are introduced since interpolation is performed after perspective transformation in the 3-D scree
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