# Pen 1: depth: 0.450000
# Pen 1: dir:   [0.000000 0.000000 1.000000]
# Pen 1: pos:   [0.000000 0.000000 0.025000]
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# Pen 2: depth: 0.533732
# Pen 2: dir:   [-0.952492 -0.304562 0.000000]
# Pen 2: pos:   [0.176471 0.058824 0.166667]
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# Pen 3: depth: 0.720933
# Pen 3: dir:   [-0.947406 -0.320033 0.000085]
# Pen 3: pos:   [0.198747 0.066309 0.050800]
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# Pen 4: depth: 0.106076
# Pen 4: dir:   [-0.524820 0.835278 0.163936]
# Pen 4: pos:   [0.138692 0.362418 0.320024]
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# Pen 5: depth: 0.103863
# Pen 5: dir:   [0.291494 -0.956567 -0.003314]
# Pen 5: pos:   [0.337721 -0.209314 -0.094587]
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# Pen 6: depth: 0.202625
# Pen 6: dir:   [0.347225 -0.937782 -0.000000]
# Pen 6: pos:   [0.399554 -0.164780 0.199941]
#