Update viewer.js

viewer.js

@@ -235,6 +235,18 @@ export async function initializeViewer(config, instanceId) {
       matSol.emissiveIntensity = 1;
       matSol.update();
 
+      const bgPlane = new pc.Entity("Plane");
+      bgPlane.addComponent("model", { type: "plane" });
+      bgPlane.setLocalPosition(0, 0.1, 0);
+      const mat = new pc.StandardMaterial();
+      mat.diffuse = new pc.Color(1, 1, 1);
+      mat.emissive = new pc.Color(1, 1, 1);
+      mat.emissiveMap = bgTex;
+      mat.emissiveIntensity = grilleTex;
+      mat.useLighting = false;
+      mat.update();
+      bgPlane.model.material = mat;
+      app.root.addChild(bgPlane);
 
       traverse(presentoirEntity, node => {
         if (node.render && node.render.meshInstances) {