public void OnAnchorFound(ARAnchor arAnchor, ARNode arNode)
{
// Spawn a visual plane if a PlaneAnchor was found
if (arAnchor.GetType() == ARAnchor.Type.Plane)
{
var planeAnchor = (ARPlaneAnchor)arAnchor;
// Create the visual geometry representing this plane
var dimensions = planeAnchor.Extent;
var plane = new ViroCore.Surface(1, 1)
{
Width = dimensions.X, Height = dimensions.Z
};
// Set a default material for this plane.
var material = new Material {
DiffuseColor = Color.ParseColor("#BF000000")
};
plane.Materials = new List <Material>()
{
material
};
// Attach it to the node
var planeNode = new Node {
Geometry = plane
};
planeNode.SetRotation(new Vector(-Math.ToRadians(90.0), 0, 0));
planeNode.SetPosition(planeAnchor.Center);
// Attach this planeNode to the anchor's arNode
arNode.AddChildNode(planeNode);
surfaces.Add(arAnchor.AnchorId, planeNode);
// Attach click listeners to be notified upon a plane onClick.
planeNode.Click += (s, e) =>
{
foreach (var listener in mPlaneClickListeners)
{
listener.OnClick(e.P0, e.P1, e.P2);
}
};
HideIsTrackingLayoutUi();
}
}
private void Init3DModelProduct()
{
// Create our group node containing the light, shadow plane, and 3D models
mProductModelGroup = new Node();
// Create a light to be shined on the model.
Spotlight spotLight = new Spotlight();
spotLight.InfluenceBitMask = 1;
spotLight.Position = new Vector(0, 5, 0);
spotLight.CastsShadow = true;
spotLight.AttenuationEndDistance = 7;
spotLight.AttenuationStartDistance = 4;
spotLight.Direction = new Vector(0, -1, 0);
spotLight.Intensity = 6000;
spotLight.ShadowOpacity = 0.35f;
mProductModelGroup.AddLight(spotLight);
// Create a mock shadow plane in AR
Node shadowNode = new Node();
var shadowSurface = new Surface(20, 20);
Material material = new Material();
material.SetShadowMode(Material.ShadowMode.Transparent);
material.SetLightingModel(Material.LightingModel.Lambert);
shadowSurface.Materials = new List <Material>()
{
material
};
shadowNode.Geometry = shadowSurface;
shadowNode.LightReceivingBitMask = 1;
shadowNode.SetPosition(new Vector(0, -0.01, 0));
shadowNode.SetRotation(new Vector(-1.5708, 0, 0));
// We want the shadow node to ignore all events because it contains a surface of size 20x20
// meters and causes this to capture events which will bubble up to the mProductModelGroup node.
shadowNode.IgnoreEventHandling = true;
mProductModelGroup.AddChildNode(shadowNode);
// Load the model from the given mSelected Product
Object3D productModel = new Object3D();
productModel.LoadModel(mViroView.ViroContext, Uri.Parse(mSelectedProduct != null?mSelectedProduct.ThreeDModelUri:""), Object3D.Type.Fbx,
new AsyncObject3DListener2(this));
// Make this 3D Product object draggable.
mProductModelGroup.SetDragType(Node.DragType.FixedToWorld);
mProductModelGroup.Drag += (s, e) => { };
// Set gesture listeners such that the user can rotate this model.
productModel.GestureRotate += (s, e) =>
{
if (e.P3 == RotateState.RotateEnd)
{
mLastProductRotation = mSavedRotateToRotation;
}
else
{
Vector rotateTo = new Vector(mLastProductRotation.X, mLastProductRotation.Y + e.P2,
mLastProductRotation.Z);
mProductModelGroup.SetRotation(rotateTo);
mSavedRotateToRotation = rotateTo;
}
};
mProductModelGroup.Opacity = 0;
mProductModelGroup.AddChildNode(productModel);
}