Abstract: The Sequenced Convex Subtraction (SCS) algorithm for Constructive Solid Geometry (CSG) sequentially subtracts convex volumes from the z-buffer. This paper presents an improvement to subtraction sequence generation which uses object space overlap information to give O(n) length sequences in the best case and (unchanged) O(n²) sequences in the worst case. (Improved CSG Rendering using Overlap Graph Subtraction Sequences. N. Stewart, G. Leach, S. John. International Conference on Computer Graphics and Interactive Techniques in Australasia and South East Asia – GRAPHITE 2003, pp. 47-53)