SceneView touch actions

[wasdrqm]

Hi, thank you for article. Can you help me? How i can drag, rotate and scale 3d model without using ArFragment and working via SceneView?

[roshanpatel6040]

hi @wasdrqm ,
Did you found any solution for scaling and rotation of model in sceneview ?

Help me if you found solution @Hariofspades

[wasdrqm]

hi @roshanpatel6040, i found solution, but it support only pinches for rotations and scaling.

private lateinit var scene: Scene
private lateinit var transformableNode: TransformableNode
private lateinit var transformationSystem: TransformationSystem

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        transformationSystem = makeTransformationSystem()

        scene = sceneView.scene // get current scene
        scene.addOnUpdateListener {
            if (this::transformableNode.isInitialized) transformableNode.onUpdate(it)
        }
        scene.addOnPeekTouchListener { hitTestResult, motionEvent ->
            if (this::transformationSystem.isInitialized)
                transformationSystem.onTouch(hitTestResult, motionEvent)
        }

        renderObject(Uri.parse("cupcake.sfb")) // Render the object
    }

private fun addNodeToScene(model: ModelRenderable?) {
        val node = Node().apply {
            setParent(scene)
            localPosition = Vector3(0f, -0.3f, -1f)
            localScale = Vector3(2f, 2f, 2f)
            name = "Cupcake"
        }

        transformableNode = TransformableNode(transformationSystem).apply {
            rotationController.isEnabled = true
            scaleController.isEnabled = true
            translationController.isEnabled = false // not support
            renderable = model
            setParent(node)
        }

        scene.onAddChild(node)
        transformableNode.select()
    }

private fun makeTransformationSystem(): TransformationSystem {
        val selectionVisualizer = FootprintSelectionVisualizer()
        val transformationSystem = TransformationSystem(this.resources.displayMetrics, selectionVisualizer)
        (ModelRenderable.builder().setSource(this, com.google.ar.sceneform.ux.R.raw.sceneform_footprint) as com.google.ar.sceneform.rendering.ModelRenderable.Builder).build().thenAccept { renderable ->
            if (selectionVisualizer.footprintRenderable == null) {
                selectionVisualizer.footprintRenderable = renderable
            }

        }.exceptionally {
            Toast.makeText(this, "Unable to load footprint renderable", Toast.LENGTH_SHORT).show()
            null
        }
        return transformationSystem
    }

[roshanpatel6040]

Hi @wasdrqm ,
It is working perfectly but for the first time when i again try to rotate or manipulate the model it throws exception.
ClassCastException: com.google.ar.sceneform.SceneView cannot be cast to com.google.ar.sceneform.ArSceneView

Thanks for the reply

[roshanpatel6040]

Hi @wasdrqm
I have one question.
Can we rotate model in all direction irrespective to single axis ?

[wasdrqm]

Hi @wasdrqm
I have one question.
Can we rotate model in all direction irrespective to single axis ?

hi. I think yes, but you need to write new TransformationController for this action