Benchmarks

Took 82 milliseconds to run visible() 7500 times.
Took 76 milliseconds to run visible(true) 7500 times.
Took 93 milliseconds to run visible(true, true) 7500 times.
Took 91 milliseconds to run visible(false, true) 7500 times.
Took 75 milliseconds to run visible(false, false, vertical) 7500 times.
Took 76 milliseconds to run visible(false, false, horizontal) 7500 times.
Took 73 milliseconds to run visible(true, false, vertical) 7500 times.
Took 70 milliseconds to run visible(true, false, horizontal) 7500 times.