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Title:
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A parametric-space-based scan-line algorithm for rendering of bicubic surfaces
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Author:
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Pueyo Sánchez, Xavier; Brunet Crosa, Pere
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics; Universitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual |
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Abstract:
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A novel scan-line algorithm for displaying bicubic surfaces is presented. Patches are decomposed on regions of constant sign of the z component of the normal before the scan process. Most of the computations are done in parametric space. The algorithm computes the intersection of the surfaces with only a restricted subset of scan planes and obtains the intersection with other scan planes by linear interpolation between exact intersections. A bound of the algorithm's error is given. The method is compared with Whitted's algorithm. |
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Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Infografia
-Three-dimensional imaging
-Computational geometry
-Curve fitting
-Error analysis
-Interpolation
-Geometria computacional |
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Rights:
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Document type:
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Article - Published version
Article |
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