The best replacement for active 3d is passive 3d.

The best alternatives to active 3d are rated as following:
★★★★★  passive 3d
★★★  passive
★★★  cinema 3d
★★  theater 3d
★  anaglyph
★  lg passive
  real 3d
  stereoscopic

Your alternative for active 3d is not listed? Suggest!
Speaking about active 3d, one probably shouldn't forget about passive glasses.

Other search terms related to active 3d and their ratings are:
★★★★★ passive glasses
You have in mind a companion for active 3d and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of active 3d in all years. Click on graph for more.
active 3d
passive 3d
passive