6e9f54cbda
When the profile is the default (or manually set to a single point at the origin), avoid computing tangents and normals, and avoid evaluating the radius attribute. That data is only used to build the transforms of the new points. In a simple test case, this changed the total time from 34.4 to 14.7 ms (removing the cost 4.7, 8.4, and 2.1 ms) cost of calculating tangents, normals, and radii.