Object-space and Image-space approaches
Describe briefly the Object-space and Image-space approaches in Visibility tests?
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Object-space approaches employ the directions of a surface normal with respect to a viewing direction to notice a back face. Image-space approaches employ two buffers: one for storing the pixel intensities and another for updating the depth of the visible surfaces towards the view plane.
Illustrate the term soft fill? Also briefly describe kerned character?
Write down a short note on the merits of z-buffer technique?
Explain what is meant by approximation spline and interpolation spline?
Describe in detail the flood fill algorithm?
Consider a raster system with the resolution of 1024 x 768 pixels and the color palette calls for 65,536 colors. What is the minimum amount of video RAM that the computer must have to support the above-mentioned resolution and number of colors?
Explain about various Text clipping?
Briefly define the term surface patch?
Illustrate the merits of vector graphics over the term bitmapped graphics?
What do you understand by the term shearing?
Illustrate the term Graphics Tablet?
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