android - ARToolkit: Created new .pat file doesn't work -


i'm using artoolkit in android project. used this me create new marker , worked fine. file created called marker64.pat. however, standard pattern files artoolkit uses .patt files (with t). why did create .pat file me?

this .pat file doesn't seem work, crashes application starts.

this original line of code there (which works fine):

markerid = artoolkit.getinstance().addmarker("single;data/hiro.patt;80");

this changed version:

markerid = artoolkit.getinstance().addmarker("single;data/marker64.pat;80");

this marker image whilst i'm creating marker:

enter image description here

can please let me know why, firstly, file created .pat file , not .patt file. , secondly, why file doesn't work if it's correct.

thanks


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