Orig Surface Smoothing (-<no>smooth1, -<no>smooth2)
After tesselation, the orig surface is very jagged because each triangle is on the edge of a voxel face and so are at right angles to each other. The vertex positions are adjusted slightly here to reduce the angle. This is only necessary for the inflation processes. Creates surf/?h.smoothwm(.nofix). Calls mris_smooth. Smooth1 is the step just after tessellation, and smooth2 is the step just after topology fixing.