Source:
Dr. Richard Lowrey, Mechanical Engineering Consultant
Don LaCourse, Principal Partner, eDocHelp
As shown in Fig. 1, the Boolean (CSG) or intersection (B-Rep) CPU time curve is greater for a series of complex surface intersections then for a series of simple surface intersections. The number of intersections grows rapidly with each succeeding operation, causing all succeeding operations to perform even more intersection checks. Keep it simple whenever possible.
Fig 1 - CPU time verses operations and surface complexity. The CPU time curve is greater for a series of complex surface intersections than for a series of simpler surface intersections. Again, Keep it simple whenever possible!