Reducing the effect of complexity on volume model evaluation |
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Authors: | J.R. Woodwark K.M. Quinlan |
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Affiliation: | School of Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UK |
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Abstract: | A major problem with volume modelling systems is that processing times may increase with model complexity in a worse than linear fashion. The authors have addressed this problem, for picture generation, by repeatedly dividing the space occupied by a model, and evaluating the sub-models created only when they meet a criterion of simplicity. Hidden surface elimination has been integrated with evaluation, in such a way that major portions of the model which are not visible are never evaluated. An example demonstrates a better than linear relationship between model complexity and computation time, and also shows the effect of picture complexity on the performance of the process. |
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Keywords: | computer aided design volume modelling computational complexity |
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