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Various corrections to allow the GLB file to appear. #1

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Various corrections to allow the GLB file to appear. #1

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78 changes: 45 additions & 33 deletions lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ import 'package:ar_flutter_plugin_2/managers/ar_anchor_manager.dart';
import 'package:ar_flutter_plugin_2/managers/ar_location_manager.dart';
import 'package:ar_flutter_plugin_2/managers/ar_object_manager.dart';
import 'package:ar_flutter_plugin_2/managers/ar_session_manager.dart';
import 'package:ar_flutter_plugin_2/models/ar_anchor.dart'; // You need to import ar Anchor to be able to create anchors and position objects on them.

void main() {
runApp(const MyApp());
Expand Down Expand Up @@ -37,6 +38,7 @@ class ARScene extends StatefulWidget {
class _ARSceneState extends State<ARScene> {
late ARSessionManager arSessionManager;
late ARObjectManager arObjectManager;
late ARAnchorManager? arAnchorManager; // You need an AnchorManager

@override
void dispose() {
Expand All @@ -52,6 +54,7 @@ class _ARSceneState extends State<ARScene> {
) {
arSessionManager = arSessionMgr;
arObjectManager = arObjectMgr;
arAnchorManager = arAnchorMgr;

arSessionManager.onInitialize(
showFeaturePoints: false,
Expand All @@ -63,43 +66,52 @@ class _ARSceneState extends State<ARScene> {
arObjectManager.onInitialize();
print("AR Object Manager initialized successfully");

// Add a sample 3D model with debug logging
try {
final node = ARNode(
type: NodeType.fileSystemAppFolderGLB,
uri: "assets/source/123.glb",
scale: vm.Vector3(0.5, 0.5, 0.5), // Adjusted to a reasonable scale
position: vm.Vector3(0.0, 0.0, -1.0), // 1 meter in front of camera
rotation: vm.Vector4(0.0, 0.0, 0.0, 1.0), // Identity quaternion as Vector4 [x, y, z, w]
);

arObjectManager.addNode(node).then((_) {
print("Node added successfully: $node");
}).catchError((error) {
print("Error adding node: $error");
});
} catch (e) {
print("Exception while creating node: $e");
}

// Handle tap to place node on detected plane
arSessionManager.onPlaneOrPointTap = (List<ARHitTestResult> hitTestResults) {
if (hitTestResults.isNotEmpty) {
final plane = hitTestResults.first;
print("Tapped on plane at: ${plane.worldTransform.getTranslation()}");
try {
final node = ARNode(
type: NodeType.localGLTF2,
uri: "assets/source/123.glb",
scale: vm.Vector3(10,10,10),
position: plane.worldTransform.getTranslation(), // Extract Vector3 from hit result
rotation: vm.Vector4(0.0, 0.0, 0.0, 1.0), // Identity quaternion as Vector4
);
arObjectManager.addNode(node);
print("Node placed on tap successfully: $node");
} catch (e) {
print("Error placing node on tap: $e");
final singleHitTestResult = hitTestResults.first;
print("Tapped on plane at: ${singleHitTestResult.worldTransform.getTranslation()}");
// You need to create an anchor from the coordinates of the tapped plane, and only then add a node to this anchor. :
var newAnchor =
ARPlaneAnchor(transformation: singleHitTestResult.worldTransform);
this.arAnchorManager!.addAnchor(newAnchor).then((bool? didAddAnchor) {
if (didAddAnchor == true) {
try {
final node = ARNode(
type: NodeType.localGLTF2,
uri: "assets/source/123.glb",
//scale: vm.Vector3(10,10,10),
scale: vm.Vector3(1, 1, 1),
// I think your scale was too big
//position: plane.worldTransform.getTranslation(), // Extract Vector3 from hit result
position: vm.Vector3(0, 0, 0),
// You need to set the coordinates relative to where the user tapped, so 0,0,0 if you want to place the object exactly where the tap occurred.
rotation: vm.Vector4(
// 0.0, 0.0, 0.0, 1.0), // Identity quaternion as Vector4
1.0, 0.0, 0.0, 1.0), // Rotation adjustement
);
//arObjectManager.addNode(node)
arObjectManager.addNode(node, planeAnchor:newAnchor).then((bool? success) {
print("addNode result: $success");
if (success == true) {
print("Node added successfully.");
} else {
print("Failure to add the node.");
}
}).catchError((error) {
print("Error : $error");
});
print("Node placed on tap successfully: $node");
} catch (e) {
print("Error placing node on tap: $e");
}
}
else {
print("Error Adding Anchor failed ");
}
}
);

}
};
}
Expand Down