Update viewer.js

viewer.js

@@ -248,14 +248,14 @@ export async function initializeViewer(config, instanceId) {
         traverse(modelEntity, node => {
             if (node.render && node.render.meshInstances) {
                 for (let mi of node.render.meshInstances) {
-                    mi.material = matTransparent;
+                    mi.material = matOpaque;
                 }
             }
         });
         traverse(tubeEntity, node => {
             if (node.render && node.render.meshInstances) {
                 for (let mi of node.render.meshInstances) {
-                    mi.material = tubeTransparent;
+                    mi.material = tubeOpaque;
                 }
             }
         });