Log in or register to post comments

object not set on the target

January 18, 2019 - 8:26am #1


i'm trying to put a sphere above an image target, in contact with it..

When i play and the image is recognised, the sphere appears distant from the image target and too big.

I think it is a problem in the definition of the image target width, but i don't understand where i'm wrong.

Can you help me?


object not set on the target

January 21, 2019 - 2:16am #3

Thank you for the answer, 

but my program doesn't correctly work yet.

Moreover I find the same issue using a Multi Target Cube.

I have a little cube 5x5x5 cm so in the Vuforia Target Manager i set the target cube's dimensions 0.05x0.05x0.05 .

Although, when I put the target cube in the Unity scene it is very big. Consequently also the sphere, child of the target with scale 1x1x1,  is too big,

but if I resize the sphere, it will appear separate from the cube.

Am I wrong in the dimensions definition?


Thank you again!



object not set on the target

January 18, 2019 - 10:09am #2


Here are some things you can try:

  • Always print the image that was uploaded to the portal to the exact same aspect ratio. Any stretching or altering of the image may cause tracking pose jitter. Some printers default to "stretch to fit", which can change the aspect ratio.
  • Check the size values you are using when uploading Targets to the Vuforia Target Manager. Note there is specific language used in the dialogue box that says Vuforia uses meters as the default unit scale. Incorrect target sizes could affect either our detection/tracking algorithm
  • Image Targets must be flat when in the camera's field of view
  • Not enough lighting upon, and/or spectral reflections occluding the Image Target


Vuforia Engine Support

Log in or register to post comments