From 2da135754ddeda72ad050ec9f428a4340328f406 Mon Sep 17 00:00:00 2001
From: Felix Z <felix@elixr.games>
Date: Thu, 5 Dec 2024 22:35:00 +0000
Subject: [PATCH] fix anchor sample: anchor creation timing

---
 anchors.html | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/anchors.html b/anchors.html
index 83f62904d..4431b315d 100644
--- a/anchors.html
+++ b/anchors.html
@@ -252,12 +252,14 @@
           });
 
           tracked_anchors.forEach(anchor => {
-            const anchorPose = frame.getPose(anchor.anchorSpace, xrRefSpace);
-            if (anchorPose) {
-              anchor.context.sceneObject.matrix = anchorPose.transform.matrix;
-              anchor.context.sceneObject.visible = true;
-            } else {
-              anchor.context.sceneObject.visible = false;
+            if (anchor.context) {
+              const anchorPose = frame.getPose(anchor.anchorSpace, xrRefSpace);
+              if (anchorPose) {
+                anchor.context.sceneObject.matrix = anchorPose.transform.matrix;
+                anchor.context.sceneObject.visible = true;
+              } else {
+                anchor.context.sceneObject.visible = false;
+              }
             }
           });