arcore

I am trying to show an object without tapping on the screen using ARCore. In the basic sample of ARCore Sceneform provided by Google, you need to tap on the screen after it detects the surface. I want to implement that, AR shows the object without tapping on the screen. Anchor newAnchor; for (Plane plane : mSession.getAllTrackables(Plane.class)) { if (plane.getType() == Plane.Type.HORIZONTAL_UPWARD_FACING && plane.getTrackingState() == TrackingState.TRACKING) { newAnchor = plane.createAnchor(plane.getCenterPose()); break; } } I tried this for displaying without tapping on the screen. if Anyone

I'm struggling to get this transformation. Given an anchor Pose in arcore how can I obtain its corresponding 2D coordinates in the screen? Finally, after some days of investigation and getting the information from different resources I was able to get this working. Following is a code snippet (based on the arcore sample java app) to convert from World coordinates (Pose in arcore) to 2D screen coordinates: First we need to calculate the matrix to transform from world --> screen: public float[] calculateWorld2CameraMatrix(float[] modelmtx, float[] viewmtx, float[] prjmtx) { float scaleFactor = 1

I want to connect two TransformableNode on the Sceneform at ArFragment with some visible line but without using OpenGL functions. Is it possible to draw a line between two anchors (or nodes) in Sceneform in ARCore Java in Android? If it possible then how I can do this? Yes there is a way to do this: private void addLineBetweenHits(HitResult hitResult, Plane plane, MotionEvent motionEvent) { int val = motionEvent.getActionMasked(); float axisVal = motionEvent.getAxisValue(MotionEvent.AXIS_X, motionEvent.getPointerId(motionEvent.getPointerCount() - 1)); Log.e("Values:", String.valueOf(val) +

I am trying to detect a vertical plane like wall to add image view on a vertical plane. But did not find the vertical plane. As per the default config for a session that can find both planes as a horizontal and vertical plane. But unable to find a vertical plan. How to find a vertical plane in android application? Please help me. Firstly, you need an appropriate vertical surface for tracking. Wall with a solid color (with no distinguishing features on it) is very bad instance. The most robust approach for tracking of a vertical surface is a well lit brick wall, or a wall with pictures on it,

I'm working on Android AR project using ARCore and Sceneform. I need to place the objects from 30 meters to 200 meters far from user's camera and faced with the frustum culling issue in ArCore, described HERE . I'm trying to set projection matrix to increase the far parameter using this method public void getProjectionMatrix (float[] dest, int offset, float near, float far); But I can't find possibility to set the rendering projection matrix. Here is my code: arFragment.arSceneView.apply { scene.addOnUpdateListener { // Some code to return from this callback if arFrame is not initialised yet