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Computations with Phong Shading
Computations involved along with Phong Shading:
i) Find out average unit normal vector at each polygon vertex.
ii) Linearly interpolate the vertex normals above the surface of polygon.
iii) Apply illumination model beside each scan line to calculate projected pixel intensities for surface points.
Functioning of Input Devices Functioning of input devices-Keyboard, mouse, trackball and space ball, Joystick, data glove, digitizer, scanner, touch panel, light pen, voice sys
Concept for Eliminating Hidden Lines, Surfaces or Edges To exemplify the concept for eliminating hidden-lines, surfaces or edges, see a classic wire frame model of a cube as i
De Casteljau Algorithm For computation of Bézier curves an iterative algorithm known as de Casteljau algorithm is used. The algorithm uses repeated linear interpolation.
identify a sphere along with a light source above it; hence its lower half will not be illuminated. In practice in a actual scene this lower half would be partially illuminated thr
how to cut
List out the various Text clipping? All-or-none string clipping -if all of the string is inside a clip window, keep it or else discards. All-or-none character clipping - disca
Polygon or Area Clipping Algorithm - Sutherland-Hodgman Algorithm There are different algorithms as Liang-Barsky, Line clipping, Weiler-Atherton Polygon Clipping,
Acquire a transformation matrix for perspective projection for a specified object projected onto x=3 plane as viewed by (5,0,0). Solution: Plane of projection: x = 3 as given.
Ray Tracing - polygon rendering and ray tracing methods "Ray tracing" is a technique of following the light by the eye to the light source. While ray casting only relates its
Liquid Crystal Display - Graphics Hardware It is a type of display utilized in digital watches and several portable computers. These work along with polarized ambient as outsi
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