normal light
 diffuse light
very slow
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challenge tags 		jpg images

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challenge tags
slow
 jpg images

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challenge tags 		jpg images

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challenge tags
medium
 jpg images

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challenge tags 		jpg images

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challenge tags
fast
 jpg images

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challenge tags 		jpg images

tracking data

challenge tags
very fast
 jpg images

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challenge tags 		jpg images

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challenge tags
increasing
 jpg images

tracking data

challenge tags