Update viewer.js

viewer.js

@@ -199,7 +199,7 @@ export async function initializeViewer(config, instanceId) {
     glossyRedMat.gloss = 1;
     glossyRedMat.metalness = 0.0;
     glossyRedMat.useMetalness = true;
-    //glossyRedMat.useDynamicRefraction = true;
+    glossyRedMat.useDynamicRefraction = true;
     glossyRedMat.refraction= 0.8;
     glossyRedMat.refractionIndex = 0.5;
     glossyRedMat.thickness = 5;