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Orientation Dependence - Modeling and Rendering
The outcomes of interpolated-shading models are dependent of the projected polygon's orientation. Because values are interpolated among vertices and across horizontal scan lines, the results may be different when the polygon is rotated. This consequence is mainly obvious when the orientation modifies slowly among successive frames of an animation. A same problem cab also happens in visible-surface determination while the z value at each point is interpolated by the z values allocated to each vertex. Both issues can be resolved through decomposing polygons into triangles. Instead, the solution is rotation- independent, although expensive, interpolation methods which solve problem without the requirement for decomposition.
Key Frame Systems - computer animation This method is for low-level motion control. In fact these systems comprise languages that are designed simply to produce the in-between
Define transformation. Explain all basic transformation
Explain Bresenham s circle drawing algorithm, OR Explain midpoint circle algorithm for scan converting a circle. Midpoint Circle Algorithm 1. Input radius r and circle
assignment
Projections When all display devices are 2D, you need to devise methods that give a realistic view of a 3D scene onto 2D display. With more and more devices coming in the marke
What is a Blobby object? Some objects do not handle a fixed shape, but change their surface characteristics in sure motions or when in proximity to other objects. That is call
#drawing
Write a code to generate a composite matrix for general 3D rotation matrix. Test your code and rotate continuously a cube about an axis.
In contrast to depth-buffer method, here we identify one surface at one time, scan-line method deals along with multiple surfaces. Since it processes each scan-line at one time, al
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