diff --git a/app/src/modules/builder/wall/Instances/instance/wall.tsx b/app/src/modules/builder/wall/Instances/instance/wall.tsx
index 55b6f38..36b6ede 100644
--- a/app/src/modules/builder/wall/Instances/instance/wall.tsx
+++ b/app/src/modules/builder/wall/Instances/instance/wall.tsx
@@ -94,9 +94,9 @@ function Wall({ wall }: { readonly wall: Wall }) {
 
         if (!wallVisibility && wallType.type === "room") {
             meshRef.current.getWorldDirection(v);
-            camera.getWorldDirection(u);
+            u.subVectors(camera.position, meshRef.current.position);
             if (!u || !v) return;
-            nextVisible = 2 * v.dot(u) <= 0.1;
+            nextVisible = v.dot(u) >= 0;
         }
 
         if (prevVisibleRef.current !== nextVisible) {
diff --git a/app/src/modules/simulation/events/triggerConnections/triggerConnector.tsx b/app/src/modules/simulation/events/triggerConnections/triggerConnector.tsx
index c4cb6e9..0bd6fdc 100644
--- a/app/src/modules/simulation/events/triggerConnections/triggerConnector.tsx
+++ b/app/src/modules/simulation/events/triggerConnections/triggerConnector.tsx
@@ -483,14 +483,7 @@ function TriggerConnector() {
         }
     };
 
-    const previewLine = currentLine
-        ? {
-              start: currentLine.start,
-              mid: currentLine.mid,
-              end: currentLine.end,
-              color: helperLineColor,
-          }
-        : null;
+    const previewLine = currentLine ? { start: currentLine.start, mid: currentLine.mid, end: currentLine.end, color: helperLineColor } : null;
 
     return (
         <group name="simulationConnectionGroup" visible={!isPlaying}>