Weights for Computing Vertex Normals from Facet Normals
- 1 January 1999
- journal article
- research article
- Published by Taylor & Francis in Journal of Graphics Tools
- Vol. 4 (2) , 1-6
- https://doi.org/10.1080/10867651.1999.10487501
Abstract
I propose a new equation to estimate the normal at a vertex of a polygonal approximation to a smooth surface, as a weighted sum of the normals to the facets surrounding the vertex. The equation accounts for the difference in size of these facets by assigning larger weights for smaller facets. When tested on random cubic polynomial surfaces, the equation is superior to other popular weighting methods.Keywords
This publication has 1 reference indexed in Scilit:
- Continuous Shading of Curved SurfacesIEEE Transactions on Computers, 1971