Looking for Cylinder-Ray intersection without use quadrics back

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(L) [2015/08/20] [mrluzeiro] [Looking for Cylinder-Ray intersection without use quadrics] Wayback!

I am looking for a way to intersect a cylinder without use quadrics (because it is losing lots of precision in my implementation with the small size of the objects and the camera zoom)
Any one?
Thanks!
Found one:
[LINK http://www.cs.utah.edu/~lha/Code%206620%20/Ray4/Cylinder.cpp]

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