markdaws/arkit-by-example

Apple ARKit example app

Apple ARKit Example App

A set of tutorials using the new ARKit from Apple. Follow along at: https://blog.markdaws.net/apple-arkit-by-example-ef1c8578fb59

Demo

Controls

• Move around the space to allow the app to first find horizontal planes in the environment
• Single tap inserts a cube, must tap on a plane.
• Press and hold on a plane or cube changes the material
• Two finger press and hold causes a mini explosion

NOTE: Once you have detected the planes you want, disable the plane detection so that the planes don't continue to resize and move around.

NOTE: The thre dots "..." in the bottom right open a settings menu with some debug options.

Textures

All Physically Based Rendering textures come from: http://freepbr.com/ If you use any of their textures, please link back to their site.

arkit-by-example's Issues

Made a Swift version

I found your project and tutorial incredibly helpful and made a Swift version

ARWorldTrackingSessionConfiguration is deprecated

Per Apple,

ARWorldTrackingSessionConfiguration

Deprecated
This class has been renamed in iOS 11 beta 5 and will not be available under its former name in iOS 11.0. Use ARWorldTrackingConfiguration instead.

https://developer.apple.com/documentation/arkit/arworldtrackingsessionconfiguration

Replacing ARWorldTrackingSessionConfiguration with ARWorldTrackingConfiguration gets rid of the Xcode issue

renderer:didAddNode:forAnchor: not called

I run the part 2 of your arkit examples，but there was no grid. I set breakpoint in renderer:didAddNode:forAnchor:,just found it was not called.

now i dont know where goes wrong.

tron_grid.png file missing

Hi Mark,

tron_grid.png file is missing i downloaded code of branch "part2"

Outdated, crashes on XCode 9, iPhone 8

2017-09-26 14:10:48.431168+0200 arkit-by-example[2442:1007811] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SCNNode changeMaterial]: unrecognized selector sent to instance 0x1cc1fc900'
*** First throw call stack:
(0x184fc3d38 0x1844d8528 0x184fd11f8 0x184fc96e4 0x184eaf0dc 0x10225bc14 0x18ea5ff78 0x18ea644dc 0x18e54edc8 0x18e403748 0x18ea4e3fc 0x184f6b8b8 0x184f69270 0x184f6982c 0x184e8a2d8 0x186d1bf84 0x18e436880 0x10225e8c0 0x1849ae56c)
libc++abi.dylib: terminating with uncaught exception of type NSException

ARSCNView before iOS 11.0

Swift version

Hi @markdaws ,

I have done every parts on swift, if you want you can create branches for all parts to push the code to them.

White screen?

Hi there,
I've installed on my iOS11, however I can't see the camera. Although the app loads correctly, it show only a white screen with all the controls (menu, toggle etc..).
Any idea?

Long click on a plane => -[SCNNode changeMaterial]: unrecognized selector sent to instance

Hi,

I want to change the material of a plane. When I perform a long click on a plane, I got the following error:

** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SCNNode changeMaterial]: unrecognized selector sent to instance

On:

[((Plane *)parentNode) changeMaterial];

Any idea?

Thanks.