Access 3D Touch values for pressure? iPhone 6S and iPad Pro

**laserpilot** · November 29, 2015, 2:08am

I haven’t even looked at the official documentation for 3D touch integration, but I’m curious if anyone knows if it would be straightforward to get the 3D touch values from an iPhone 6s - have an idea for a game mechanic that could use the pressure values as a controller element. Thanks!

**laserpilot** · December 1, 2015, 12:13am

@thedantheman found some good info, but i need to try my hand at either hacking the core or doing it another way:

github.com

versluis/3D-Touch/blob/master/3D Touch/ViewController.m#L35


- (void)viewWillAppear:(BOOL)animated {


[self check3DTouch];
}


- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}


- (void)check3DTouch {


// register for 3D Touch (if available)
if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) {
    
    [self registerForPreviewingWithDelegate:(id)self sourceView:self.view];
    NSLog(@"3D Touch is available! Hurra!");
    
    // no need for our alternative anymore
    self.longPress.enabled = NO;

and putting that in here: https://github.com/openframeworks/openFrameworks/blob/f49d0eead2b1a10e6ca8e2d3d8e2b31f7c316986/addons/ofxiOS/src/core/ofxiOSEAGLView.mm#L233

Or just ripping it out with a custom gesture like this, but then making sure the points are registered in the same order: https://github.com/openframeworks/openFrameworks/blob/ac32f4d21ec54577298f5f9ad7636623ee3c441d/apps/devApps/videoPlayerSetVolumeExampleIphone/src/VideoPlayerControls.m#L76

**danoli3** · December 4, 2015, 8:08am

Awesome! We’ll have to setup another touchEvent, but this will be a good addition to 0.10.0 I think!

**bakercp** · February 14, 2019, 6:00am

ofxPointer now supports all of this UITouch on iOS stuff.