问题
I've been looking into AR recently because I decided I should use it for my Android app and I found about Unity and Vuforia, which is probably the simplest way to implement AR. I've never before used Unity so I'm a complete beginner to it.
I've followed this video: https://www.youtube.com/watch?v=YvSrZqP0elQ and it's working on my phone.
Vuforia uses marker, which I don't want. I would like for it to render AR image on the ground. More accurately said, I would need it rendered so that it is vertical to your body and horizontal to the floor.
Is there a way to do this in Unity with Vuforia? It would be great if I got any kind of help, for example link to useful resource or documentation, explanation or even example. Thank you for your help.
回答1:
Vuforia does not provide markerless. They hqve smart terrain but seems to be oriente for games and has not been updated for years.
There are some SDK available like Wikitude, but they provide it as beta.
http://www.wikitude.com/blog-wikitude-3d-tracking-beta/
I think ARToolkit does something similar called Natural Feature tracking (NFT).
http://artoolkit.org/documentation/doku.php?id=3_Marker_Training%3Amarker_nft_fiducial_markers
What you may look for is SLAM but beware that the technology is not yet mature.
There is Kudan but it also has limitations as it seems to rely on hardware. Gyro for rotation so some Android device won't do.
来源：https://stackoverflow.com/questions/38701973/generating-unity-ar-without-target