Vanishing point - viewing transformations, Computer Graphics

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 track.

To demonstrate this idea, consider the Figure 17 that appears a perspective transformation onto z=0 plane. The Figure17 appears a Projected line A*B* of specified line AB parallel to the z-axis. The center of projection is at (0,0,-d) and z=0 be the projection plane.

Identify the perspective transformation of the point at infinity on the +z-axis, that is:

1408_Vanishing Point - Viewing  Transformations.png

Hence, the ordinary coordinates of a point (x',y',z',1)=(0,0,0,1), consequent to the transformed point at infinity upon the z-axis, is here a finite point. This implies that the whole semi-infinite positive space (0<=z<=∞) is transformed to the finite +ive half space 0<=z'<=d.

Posted Date: 4/4/2013 2:53:59 AM | Location : United States







Related Discussions:- Vanishing point - viewing transformations, Assignment Help, Ask Question on Vanishing point - viewing transformations, Get Answer, Expert's Help, Vanishing point - viewing transformations Discussions

Write discussion on Vanishing point - viewing transformations
Your posts are moderated
Related Questions
Archeology: along with the advent of the computer, the archeologist has obtained a new tool, computer animation. An object-model can be made comparatively quick and without any we

Explain working of CRT

Local Illumination Model - Polygon Rendering In this only light that is directly reflected by a light source through a surface to our eyes is observed. No explanation is taken

2-D Viewing and Clipping - Raster Graphics and  Clipping In the previous two units of this block, we illustrated the basic elements of computer graphics, that is, the hardware

Light Sources - polygon rendering and ray tracing methods Light Sources are key parts in any ray traced scene, since without them; there would be no rays to trace. Light sour

Two-Dimensional Geometric Transformations  When a real life object is modelled using shape primitives, there are several possible applications.  You may be required to do furth

Characteristics of vector drawings: Vector drawings are generally pretty small files as they include only data about the Bezier curves which form the drawing. The EPS-file format

Art: it just like conventional animation, computer animation is additionally a type of art. A multitude of results can be created on a computer than on a piece of paper. An artist

De Casteljau Algorithm For computation of Bézier curves an iterative algorithm known as de Casteljau algorithm is used.  The algorithm uses repeated linear interpolation.

Plasma Panel - Raster Graphics and Clipping This is an inherent memory device. Images can be written into the surface point by point and they keep stable, without flicked for