-i lines_msmblur2.xml
-vp 1.067781925 1.75217855 -2.020211935 -vi 2.269771099 0.03516346589 2.465278149 -vu 0 1 0 -fov 90
--dirlight -1 -1 1 30 30 30
--compare-threshold 64   # requires larger threshold because of unstable hit at line segment end points

