Some questions about vuforia

Questions & Answers
1

im trying to make a td-ish AR game.
There will be 1 environment marker (image target) which will have castle that player have to protect. And, there will be 3 different defender markers that player have to move constantly to defend the castle, which leads me to some questions :

  1. Image target or frame marker for the defender markers ? i have tried both and still dont get satisfactory result.
    Image target is more consistent but need large size, meanwhile frame marker is easier to work with small markers, but inconsistent. I need the markers to be around 3~5 cm square and will have to be moved manually and constantly.

  2. Can image target or frame markers interacts with each other ?
    Lets say i put a collider in the castle, and if i move my defender marker inside that collider, their HP will regen. if this can be done, is it the same as standard unity ?

The environment markers will be printed in either A4 or F4 paper size.

thanks in advance.

2
  1. Depends on your image target design. For small markers I would use very simple images with only a few but strong feature points. You don’t need hundreds of feature points as long as you don’t have too many markers and don’t hide too many of the feature points with your fingers. Example: four or five big black letters (good: F, X, Z, … bad: O, C, …) with a sharp font randomly rotated (and overlapping) on a white background or some random polygons in different grey tones. No guarantee, but I think this should work.
  2. I don’t see any reason why this shouldn’t be possible. For example the standard vuforia trackable behavior scripts already contain enabling/disabling renderers AND colliders of the marker childs when a target is found/lost. So I’m sure you can modify/extend the default scripts to your needs with the ‘standard’ unity stuff.