A railway bridge in southern Germany. 10 BCC refinements and a Marching Tetra refinement to grab the exact geometry 11 BCC then 1 MT 12 BCC then 1 MT the relative number of MT failures decreases 10 11 12 13 14 9.55 1.20 0.11 0.09 0.07 detail... 10 BCC, then 1 MT detail... 11 BCC, then 1 MT detail... 12 BCC, then 1 MT HOME contact michael.lautsch[at]lautsch-fe.com