UX in VIO fusion provider | Engine Developer Portal

By tompainter on Thu, 08/23/2018 - 21:15

Today I picked up the vuforia sample scene and took a close look on different devices how the UX works for different fusion providers for groundplane

my iphoneX runs in ARkit mode, i see a single hexagon reticle during 'scan the room' mode, when it gets a good track it shows the multiple hexagon icon so i can place an object

my iphone6 plus runs in VIO mode, I see the multi-hexagon icon right away, I can place an object right away, but the initial results are poor and jittery. As I move around the scene it improves and eventually stabilises

I just wondered, why doesnt VIO just make you scan around a bit first? so like ARkit when you do place an object is it rock solid

best

tom

Hi

just to help explain what I mean, Heres a screen shot of my current UX flowchart

it seems ARcore / kit has a well structured, scan then see lovely AR workflow

but VIO has a progressively better tracking, which I think will confuse the average non technical user.

Hello,

We are looking to verify that you've actually placed an anchor from a hit-test result.

With Vuforia VISLAM in 8.0 (and Vuforia VIO in 7.5) hit-tests are done against the assumed height. There is no hit-test against any real geometry.

Im still struggling with this

Im still struggling with this.

if you check the vuforia sample scene's groundplane demo, its almost like there needs to be another message for phones running in VIO fusion provider mode

something like "Move your phone around to make the object the right size"

Ive been digging in further

Ive been digging in further and displaying some diagnostics to my screen to get a better idea under the hood, but I could still do with some expert help if anyone can help?

This person asking a similar

This person asking a similar but slightly different thing a while back...

https://developer.vuforia.com/forum/qcar-api/exposing-confidence-particularly-unity

in the PlaneFinder object in

in the PlaneFinder object in unity I found there is a 'height' we can set
https://developer.vuforia.com/forum/ground-plane/set-planefinder-heigth-runtime

Ok last one from me...

'height' is a bit misleading here as i doubt most people are placing augmentations directly below the camera? in my school maths class we'd normally use pythagoras theory to work out what in this case would be the hypotenuse?

Hi

i still haven’t solved this.

can anyone help please?

best

tom

BUMP!

would really appreciate some help from support. Im running low on ideas now. my first post was over a month ago.

best

Tom

Hello,

Let me try and provide you with some additional information about the Ground Plane feature that *may* help.

hi thanks for your help

I thought I already tried all this, but I'm going to double check if the VIO device is showing status = limited before the scale is looking like it is more accurate.

hopefully it is and then I can add some hints for the user

I will report back soon

Hi

Hello,

Thanks very much for the feedback. A couple of questions:

Hi

it was iphone 6+ and iphone X

Hello,

[quote=tompainter]

but the height is just a hint to set the starting point anyway? if I move my phone a lot this should be eventually discarded once good spacial data is available?

[/quote]

Any updates on this? I'm

Any updates on this? I'm running into the same problem where the scale of the Plane Indicator is super small on the device. The object scales to the correct size only after I place it and move the camera around a bit.