ARCore

Question

我已经使用 ARCore 成功显示了一个 3D 模型，但是我如何将模型直接放置在平面上？

     mArFragment = (ArFragment) getSupportFragmentManager().findFragmentById(R.id.ar_fragment);
     mArFragment.setOnTapArPlaneListener((hitResult, plane, motionEvent) -> {
     Anchor anchor = hitResult.createAnchor();

     ModelRenderable.builder()
           .setSource(this, Uri.parse("ArcticFox_Posed.sfb"))
           .build()
           .thenAccept(modelRenderable -> addModelToScene(anchor, modelRenderable))
           .exceptionally(throwable -> {
                    AlertDialog.Builder builder = new AlertDialog.Builder(this);
                    builder.setMessage(throwable.getMessage())
                    .show();
                    return null;
               });
           });

Answer 1

您可以使用 ShapeFactory 使平面可渲染，并使您的狐狸可渲染成为平面对象的子对象，如下所示：

private fun addModelToScene(anchor: Anchor, renderable: Renderable) {    
    val anchorNode = AnchorNode(anchor)
    val node = TransformableNode(fragment.transformationSystem)
    node.renderable = renderablePlane //create plane renderable
    node.setParent(anchorNode)
    val nodeFox = Node()
    nodeFox.renderable = renderable
    //edit localPosition to fit on the plane with nodeFox.localPosition
    nodeFox.setParent(node)
    fragment.arSceneView.scene.addChild(anchorNode)
}

ARCore - 在平面上显示 3D 模型

ARCore - Displaying 3D Model over a plane

android