No comment. Sorry.
renderOn:
makeTriangleFans
Re-arrange the triangles so that they represent triangle fans.
reArrangeFanFaces:around:from:into:
Re-arrange the faces in sharedFaces to form a triangle fan. Avoid inplace-reversal of the triangles in doneList -- they have been arranged already
sampleRect:
B3DIndexedQuadMesh new sampleRect