Translations:Manual:Traditional modeling, the CSG way/5/en

The difference between the two can be compared to the difference between bitmap and vector images. As with bitmap images, polygon meshes have their curved surfaces divided into a series of points. If you look at it closely, or print it very large, you will see not a curved but a faceted surface. In both vector images and BREP data, the position of any point on a curve is not stored in the geometry but calculated on the fly, with exact precision.