diff --git a/src/components/three/ModelViewer.tsx b/src/components/three/ModelViewer.tsx
index b4e71c5..7cae3e7 100644
--- a/src/components/three/ModelViewer.tsx
+++ b/src/components/three/ModelViewer.tsx
@@ -190,6 +190,9 @@ function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive:
           const lineMat = new THREE.LineBasicMaterial({
             color: measureMode ? '#00f3ff' : wireframeColor,
             linewidth: measureMode ? 2 : wireframeThickness,
+            toneMapped: false,
+            transparent: true,
+            opacity: 0.95,
           });
           const lineSegments = new THREE.LineSegments(edgesGeo, lineMat);
           lineSegments.userData.__edgeLine = true;
diff --git a/src/pages/XRSession.tsx b/src/pages/XRSession.tsx
index 6448e09..cac2c2d 100644
--- a/src/pages/XRSession.tsx
+++ b/src/pages/XRSession.tsx
@@ -182,6 +182,9 @@ function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').
           const lineMat = new THREE.LineBasicMaterial({
             color: measureMode ? '#00f3ff' : wireframeColor,
             linewidth: measureMode ? 2 : wireframeThickness,
+            toneMapped: false,
+            transparent: true,
+            opacity: 0.95,
           });
           const lineSegments = new THREE.LineSegments(edgesGeo, lineMat);
           lineSegments.userData.__edgeLine = true;