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Visible Surface Detection - Modeling and Rendering
Provided a set of 3-Dimentional objects and a viewing position for the generation of realistic graphics show, we want to determine that lines or surfaces of the objects are visible, either from the center of projection, for perspective projections or along the direction of projection, for parallel projections, hence we can display merely the visible lines or surfaces. For such, we require to conduct visibility tests. Visibility tests are conducted to find out the surface which is visible from a specified viewpoint. This procedure is termed as visible-line or visible-surface determination or hidden-line or hidden-surface subscription.
Architecture: One of the purposes for the development of virtual reality (that is in fact a form of computer animation) was which it was going to be very helpful to architects. He
Character Generation You know that graphics displays often contain components which are text based. For example graph labels, annotations, descriptions on data flow diagrams,
QUESTION 1 Assume you work as Producer for the national TV channel in Mauritius. As such, you have been requested by the Director of Production to submit a proposal in the for
Parallel Projection In parallel projection, objects in scene are projected onto the 2D view plane along rays parallel to a projection vector. Parallel projection is orthogra
Question: Is CAD only helpful for design drawings? No. When true-scale, structurally valid drawings are the purpose for CAD's existence; it utilizes is as diverse as imagination
Demerit - phong shading or normal vector interpolation shading Needs lot of computations to determine intensity at a point, hence increases the cost of shading in any impleme
Problems at Shared Vertices - Modeling and Rendering Shading discontinuities can arise while two adjacent polygons fail to share a vertex which lies along their common edge.
Polygon representation methods - Boundary representations Boundary representations: now the 3-D object is shown as a set of surfaces which separate the object interior from
Advantages of Scan line Algorithm: This time and always we are working along with one-dimensional array as: x[0...x_max] for color not a 2D-array like in Z-buffer algorithm.
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