AR Foundation, Image target library size

Question

How many images is it okay to use in a reference image library, and still maintain solid performance? Will library size affect performance at all?

I've made apps that use 5-10 images in the ARFoundation image tracking reference library, which works great. Could I add 50? 100? 1000? Assume they’re all relatively distinct, to minimize mistaking one image for another.

Thanks!

(Cross-post from the forum, wanted to poll Unity Answers' collective knowledge too :) Will update the forum with any info from here.)

Answer 1

Answer by FelixLightshape2 · Aug 24, 2020 at 11:00 AM

I may be a bit late with this answer, but I've tested it as I'm currently developing an app with lots of image targets. It appears that as soon as I add more than 86 images to the library, it stops tracking any of them. At least that's how it is on iOS for me.

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AR Foundation, Image target library size

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